24AA128T-I/MC [MICROCHIP]
128K I2C CMOS Serial EEPROM; 128K I2C CMOS串行EEPROM型号: | 24AA128T-I/MC |
厂家: | MICROCHIP |
描述: | 128K I2C CMOS Serial EEPROM |
文件: | 总26页 (文件大小:427K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
24AA128/24LC128/24FC128
128K I2C™ CMOS Serial EEPROM
• Temperature ranges:
Device Selection Table
- Industrial (I):
- Automotive (E):
-40°C to +85°C
-40°C to +125°C
Part
VCC
Max. Clock
Frequency
Temp.
Ranges
Number
Range
24AA128
1.7-5.5V
400 kHz(1)
I
Description:
24LC128
24FC128
2.5-5.5V
1.7-5.5V
400 kHz
1 MHz(2)
I, E
I
The Microchip Technology Inc. 24AA128/24LC128/
24FC128 (24XX128*) is a 16K x 8 (128 Kbit) Serial
Electrically Erasable PROM (EEPROM), capable of
operation across a broad voltage range (1.7V to 5.5V).
It has been developed for advanced, low-power
applications such as personal communications or data
acquisition. This device also has a page write capabil-
ity of up to 64 bytes of data. This device is capable of
both random and sequential reads up to the 128K
boundary. Functional address lines allow up to eight
devices on the same bus, for up to 1 Mbit address
space. This device is available in the standard 8-pin
plastic DIP, SOIC (3.90 mm and 5.28 mm), TSSOP,
MSOP and DFN packages.
Note 1: 100 kHz for VCC < 2.5V.
2: 400 kHz for VCC < 2.5V.
Features:
• Single supply with operation down to 1.7V for
24AA128/24FC128 devices, 2.5V for 24LC128
devices
• Low-power CMOS technology:
- Write current 3 mA, typical
- Standby current 100 nA, typical
• 2-wire serial interface, I2C™ compatible
• Cascadable up to eight devices
• Schmitt Trigger inputs for noise suppression
• Output slope control to eliminate ground bounce
• 100 kHz and 400 kHz clock compatibility
• 1 MHz clock for FC versions
Block Diagram
A0 A1 A2WP
HV Generator
I/O
Control
Logic
Memory
Control
Logic
EEPROM
Array
XDEC
• Page write time 5 ms, typical
• Self-timed erase/write cycle
Page Latches
• 64-byte page write buffer <adjust per device>
• Hardware write-protect
SCL
I/O
SDA
YDEC
• ESD protection >4000V
• More than 1 million erase/write cycles
• Data retention > 200 years
VCC
VSS
• Factory programming available
Sense Amp.
R/W Control
• Packages include 8-lead PDIP, SOIC, TSSOP,
DFN and MSOP packages
• Pb-free and RoHS compliant
*24XX128 is used in this document as a generic part number
for the 24AA128/24LC128/24FC128 devices.
Package Types
PDIP/SOIC
TSSOP/MSOP*
DFN
A0
1
8
VCC
1
2
8
7
1
2
3
4
A0
A1
8
7
6
5
VCC
WP
A0
A1
VCC
WP
A1
A2
2
3
4
7
6
5
WP
A2
SCL
SDA
SCL
SDA
3
4
6
5
A2
SCL
SDA
VSS
VSS
VSS
Note: * Pins A0 and A1 are no-connects for the MSOP package only.
© 2007 Microchip Technology Inc.
DS21191P-page 1
24AA128/24LC128/24FC128
1.0
ELECTRICAL CHARACTERISTICS
(†)
Absolute Maximum Ratings
VCC.............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. VSS ......................................................................................................... -0.6V to VCC +1.0V
Storage temperature ...............................................................................................................................-65°C to +150°C
Ambient temperature with power applied................................................................................................-40°C to +125°C
ESD protection on all pins ......................................................................................................................................................≥ 4 kV
† NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at those or any other conditions above those
indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for
extended periods may affect device reliability.
TABLE 1-1:
DC CHARACTERISTICS
Electrical Characteristics:
DC CHARACTERISTICS
Industrial (I):
VCC = +1.7V to 5.5V TA = -40°C to +85°C
Automotive (E): VCC = +2.5V to 5.5V TA = -40°C to 125°C
Param.
Sym.
No.
Characteristic
Min.
Max.
Units
Conditions
D1
—
A0, A1, A2, SCL, SDA and
WP pins:
—
—
—
—
—
D2
D3
VIH
VIL
High-level input voltage
Low-level input voltage
0.7 VCC
—
—
V
0.3 VCC
0.2 VCC
V
V
VCC ≥ 2.5V
VCC < 2.5V
D4
D5
D6
VHYS
VOL
ILI
Hysteresis of Schmitt Trigger 0.05 VCC
inputs (SDA, SCL pins)
—
0.40
±1
V
VCC ≥ 2.5V (Note 1)
Low-level output voltage
Input leakage current
Output leakage current
—
V
IOL = 3.0 mA @ VCC = 4.5V
IOL = 2.1 mA @ VCC = 2.5V
—
μA
VIN = VSS or VCC, WP = VSS
VIN = VSS or VCC, WP = VCC
D7
D8
ILO
—
—
±1
10
μA
pF
VOUT = VSS or VCC
CIN,
Pin capacitance
VCC = 5.0V (Note 1)
COUT
(all inputs/outputs)
TA = 25°C, FCLK = 1 MHz
D9
ICC Read Operating current
ICC Write
—
—
—
400
3
μA
mA
μA
VCC = 5.5V, SCL = 400 kHz
VCC = 5.5V
D10
ICCS
Standby current
1
TA = -40°C to +85°C
SCL = SDA = VCC = 5.5V
A0, A1, A2, WP = VSS
—
5
μA
TA = -40°C to 125°C
SCL = SDA = VCC = 5.5V
A0, A1, A2, WP = VSS
Note 1: This parameter is periodically sampled and not 100% tested.
DS21191P-page 2
© 2007 Microchip Technology Inc.
24AA128/24LC128/24FC128
TABLE 1-2:
AC CHARACTERISTICS
Electrical Characteristics:
AC CHARACTERISTICS
Industrial (I):
VCC = +1.7V to 5.5V TA = -40°C to +85°C
Automotive (E): VCC = +2.5V to 5.5V TA = -40°C to 125°C
Param.
Sym.
No.
Characteristic
Clock frequency
Min.
Max.
Units
Conditions
1
2
3
4
FCLK
—
—
—
—
100
400
400
kHz 1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V 24FC128
2.5V ≤ VCC ≤ 5.5V 24FC128
1000
THIGH
TLOW
Clock high time
Clock low time
4000
600
600
500
—
—
—
—
ns
ns
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V 24FC128
2.5V ≤ VCC ≤ 5.5V 24FC128
4700
1300
1300
500
—
—
—
—
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V 24FC128
2.5V ≤ VCC ≤ 5.5V 24FC128
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC ≤ 5.5V 24FC128
All except, 24FC128
TR
TF
SDA and SCL rise time
(Note 1)
—
—
—
1000
300
300
5
6
SDA and SCL fall time
(Note 1)
—
—
300
100
ns
ns
1.7V ≤ VCC ≤ 5.5V 24FC128
THD:STA Start condition hold time
4000
600
600
250
—
—
—
—
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V 24FC128
2.5V ≤ VCC ≤ 5.5V 24FC128
7
TSU:STA Start condition setup time
4700
600
600
250
—
—
—
—
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V 24FC128
2.5V ≤ VCC ≤ 5.5V 24FC128
8
9
THD:DAT Data input hold time
TSU:DAT Data input setup time
0
—
ns
ns
(Note 2)
250
100
100
—
—
—
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC ≤ 5.5V 24FC128
10
TSU:STO Stop condition setup time
4000
600
600
250
—
—
—
—
ns
1.7 V ≤ VCC < 2.5V
2.5 V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V 24FC128
2.5 V ≤ VCC ≤ 5.5V 24FC128
11
12
TSU:WP WP setup time
THD:WP WP hold time
4000
600
600
—
—
—
ns
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC ≤ 5.5V 24FC128
4700
1300
1300
—
—
—
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC ≤ 5.5V 24FC128
Note 1: Not 100% tested. CB = total capacitance of one bus line in pF.
2: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region
(minimum 300 ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions.
3: The combined TSP and VHYS specifications are due to new Schmitt Trigger inputs, which provide improved
noise spike suppression. This eliminates the need for a TI specification for standard operation.
4: This parameter is not tested but ensured by characterization. For endurance estimates in a specific
application, please consult the Total Endurance™ Model, which can be obtained from Microchip’s web site
at www.microchip.com.
© 2007 Microchip Technology Inc.
DS21191P-page 3
24AA128/24LC128/24FC128
TABLE 1-2:
AC CHARACTERISTICS (CONTINUED)
Electrical Characteristics:
AC CHARACTERISTICS
Industrial (I): VCC = +1.7V to 5.5V TA = -40°C to +85°C
Automotive (E): VCC = +2.5V to 5.5V TA = -40°C to 125°C
Param.
Sym.
No.
Characteristic
Min.
Max.
Units
Conditions
13
14
15
TAA
Output valid from clock
(Note 2)
—
—
—
—
3500
900
900
400
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V 24FC128
2.5V ≤ VCC ≤ 5.5V 24FC128
TBUF
TOF
Bus free time: Time the bus
must be free before a new
transmission can start
4700
1300
1300
500
—
—
—
—
ns
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V 24FC128
2.5V ≤ VCC ≤ 5.5V 24FC128
Output fall time from VIH
minimum to VIL maximum
CB ≤ 100 pF
10 + 0.1CB
250
250
All except, 24FC128 (Note 1)
24FC128 (Note 1)
16
17
18
TSP
TWC
—
Input filter spike suppression
(SDA and SCL pins)
—
—
50
5
ns
All except, 24FC128 (Notes 1
and 3)
Write cycle time (byte or
page)
ms
—
Endurance
1,000,000
—
cycles 25°C (Note 4)
Note 1: Not 100% tested. CB = total capacitance of one bus line in pF.
2: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region
(minimum 300 ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions.
3: The combined TSP and VHYS specifications are due to new Schmitt Trigger inputs, which provide improved
noise spike suppression. This eliminates the need for a TI specification for standard operation.
4: This parameter is not tested but ensured by characterization. For endurance estimates in a specific
application, please consult the Total Endurance™ Model, which can be obtained from Microchip’s web site
at www.microchip.com.
FIGURE 1-1:
BUS TIMING DATA
5
4
D4
2
SCL
7
3
10
8
9
SDA
IN
6
16
14
12
13
SDA
OUT
(protected)
WP
11
(unprotected)
DS21191P-page 4
© 2007 Microchip Technology Inc.
24AA128/24LC128/24FC128
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
Name
PIN FUNCTION TABLE
8-pin
PDIP
8-pin
SOIC
8-pin
8-pin
MSOP
8-pin
DFN
Function
TSSOP
A0
1
2
1
2
1
2
—
—
1, 2
3
1
2
User Configurable Chip Select
User Configurable Chip Select
Not Connected
A1
(NC)
A2
—
3
—
3
—
3
—
3
User Configurable Chip Select
Ground
VSS
SDA
SCL
(NC)
WP
VCC
4
4
4
4
4
5
5
5
5
5
Serial Data
6
6
6
6
6
Serial Clock
—
7
—
7
—
7
—
7
—
7
Not Connected
Write-Protect Input
8
8
8
8
8
+1.7V to 5.5V (24AA128)
+2.5V to 5.5V (24LC128)
+1.7V to 5.5V (24FC128)
2.1
A0, A1, A2 Chip Address Inputs
2.3
Serial Clock (SCL)
The A0, A1 and A2 inputs are used by the 24XX128 for
multiple device operations. The levels on these inputs
are compared with the corresponding bits in the slave
address. The chip is selected if the compare is true.
This input is used to synchronize the data transfer to
and from the device.
2.4
Write-Protect (WP)
For the MSOP package only, pins A0 and A1 are not
connected.
This pin must be connected to either VSS or VCC. If tied
to VSS, write operations are enabled. If tied to VCC,
write operations are inhibited but read operations are
not affected.
Up to eight devices (two for the MSOP package) may
be connected to the same bus by using different Chip
Select bit combinations. These inputs must be
connected to either VCC or VSS.
3.0
FUNCTIONAL DESCRIPTION
In most applications, the chip address inputs A0, A1
and A2 are hard-wired to logic ‘0’ or logic ‘1’. For
applications in which these pins are controlled by a
microcontroller or other programmable device, the chip
address pins must be driven to logic ‘0’ or logic ‘1’
before normal device operation can proceed.
The 24XX128 supports a bidirectional 2-wire bus and
data transmission protocol. A device that sends data
onto the bus is defined as a transmitter and a device
receiving data as a receiver. The bus must be
controlled by a master device which generates the
Serial Clock (SCL), controls the bus access and
generates the Start and Stop conditions while the
24XX128 works as a slave. Both master and slave can
operate as a transmitter or receiver, but the master
device determines which mode is activated.
2.2
Serial Data (SDA)
This is a bidirectional pin used to transfer addresses
and data into and out of the device. It is an open drain
terminal. Therefore, the SDA bus requires a pull-up
resistor to VCC (typical 10 kΩ for 100 kHz, 2 kΩ for
400 kHz and 1 MHz).
For normal data transfer, SDA is allowed to change
only during SCL low. Changes during SCL high are
reserved for indicating the Start and Stop conditions.
© 2007 Microchip Technology Inc.
DS21191P-page 5
24AA128/24LC128/24FC128
The data on the line must be changed during the low
period of the clock signal. There is one bit of data per
clock pulse.
4.0
BUS CHARACTERISTICS
The following bus protocol has been defined:
• Data transfer may be initiated only when the bus
is not busy.
Each data transfer is initiated with a Start condition and
terminated with a Stop condition. The number of the
data bytes transferred between the Start and Stop
conditions is determined by the master device.
• During data transfer, the data line must remain
stable whenever the clock line is high. Changes in
the data line while the clock line is high will be
interpreted as a Start or Stop condition.
4.5
Acknowledge
Accordingly, the following bus conditions have been
defined (Figure 4-1).
Each receiving device, when addressed, is obliged to
generate an Acknowledge signal after the reception of
each byte. The master device must generate an extra
clock pulse, which is associated with this Acknowledge
bit.
4.1
Bus Not Busy (A)
Both data and clock lines remain high.
Note: The 24XX128 does not generate any
Acknowledge bits if an internal
programming cycle is in progress.
4.2
Start Data Transfer (B)
A high-to-low transition of the SDA line while the clock
(SCL) is high determines a Start condition. All
commands must be preceded by a Start condition.
A device that acknowledges must pull down the SDA
line during the acknowledge clock pulse in such a way
that the SDA line is stable low during the high period of
the acknowledge related clock pulse. Of course, setup
and hold times must be taken into account. During
reads, a master must signal an end of data to the slave
by NOT generating an Acknowledge bit on the last byte
that has been clocked out of the slave. In this case, the
slave (24XX128) will leave the data line high to enable
the master to generate the Stop condition.
4.3
Stop Data Transfer (C)
A low-to-high transition of the SDA line, while the clock
(SCL) is high, determines a Stop condition. All
operations must end with a Stop condition.
4.4
Data Valid (D)
The state of the data line represents valid data when,
after a Start condition, the data line is stable for the
duration of the high period of the clock signal.
FIGURE 4-1:
DATA TRANSFER SEQUENCE ON THE SERIAL BUS
(A)
(B)
(D)
(D)
(C) (A)
SCL
SDA
Start
Condition
Address or
Acknowledge
Valid
Data
Allowed
to Change
Stop
Condition
FIGURE 4-2:
ACKNOWLEDGE TIMING
Acknowledge
Bit
1
2
3
4
5
6
7
8
9
1
2
3
SCL
SDA
Data from transmitter
Data from transmitter
Transmitter must release the SDA line at this point,
allowing the Receiver to pull the SDA line low to
acknowledge the previous eight bits of data.
Receiver must release the SDA line
at this point so the Transmitter can
continue sending data.
DS21191P-page 6
© 2007 Microchip Technology Inc.
24AA128/24LC128/24FC128
FIGURE 5-1:
CONTROL BYTE
FORMAT
5.0
DEVICE ADDRESSING
A control byte is the first byte received following the
Start condition from the master device (Figure 5-1).
The control byte consists of a 4-bit control code. For the
24XX128, this is set as ‘1010’ binary for read and write
operations. The next three bits of the control byte are
the Chip Select bits (A2, A1, A0). The Chip Select bits
allow the use of up to eight 24XX128 devices on the
same bus and are used to select which device is
accessed. The Chip Select bits in the control byte must
correspond to the logic levels on the corresponding A2,
A1 and A0 pins for the device to respond. These bits
are, in effect, the three Most Significant bits of the word
address.
Read/Write Bit
Chip Select
Bits
Control Code
S
1
0
1
0
A2 A1 A0 R/W ACK
Slave Address
Start Bit
Acknowledge Bit
5.1
Contiguous Addressing Across
Multiple Devices
For the MSOP package, the A0 and A1 pins are not
connected. During device addressing, the A0 and A1
Chip Select bits (Figures 5-1 and 5-2) should be set to
‘0’. Only two 24XX128 MSOP packages can be
connected to the same bus.
The Chip Select bits A2, A1 and A0 can be used to
expand the contiguous address space for up to 1 Mbit
by adding up to eight 24XX128 devices on the same
bus. In this case, software can use A0 of the control
byte as address bit A14; A1 as address bit A15; and A2
as address bit A16. It is not possible to sequentially
read across device boundaries.
The last bit of the control byte defines the operation to
be performed. When set to a one, a read operation is
selected. When set to a zero, a write operation is
selected. The next two bytes received define the
address of the first data byte (Figure 5-2). Because
only A13…A0 are used, the upper two address bits are
“don’t care” bits. The upper address bits are transferred
first, followed by the Less Significant bits.
For the MSOP package, up to two 24XX128 devices
can be added for up to 256 Kbit of address space. In
this case, software can use A2 of the control byte as
address bit A16. Bits A0 (A14) and A1 (A15) of the
control byte must always be set to logic ‘0’ for the
MSOP.
Following the Start condition, the 24XX128 monitors
the SDA bus checking the device type identifier being
transmitted. Upon receiving a ‘1010’ code and
appropriate device select bits, the slave device outputs
an Acknowledge signal on the SDA line. Depending on
the state of the R/W bit, the 24XX128 will select a read
or write operation.
FIGURE 5-2:
ADDRESS SEQUENCE BIT ASSIGNMENTS
Control Byte
Address High Byte
Address Low Byte
A
A
13
A
2
A
1
A
0
A
A
10
A
9
A
8
A
7
A
0
•
•
•
•
•
•
1
0
1
0
R/W
x
x
12 11
Control
Code
Chip
Select
Bits
x= “don’t care” bit
© 2007 Microchip Technology Inc.
DS21191P-page 7
24AA128/24LC128/24FC128
master should transmit more than 64 bytes prior to
generating the Stop condition, the address counter will
roll over and the previously received data will be over-
written. As with the byte write operation, once the Stop
condition is received, an internal write cycle will begin
(Figure 6-2). If an attempt is made to write to the array
with the WP pin held high, the device will acknowledge
the command, but no write cycle will occur, no data will
be written and the device will immediately accept a new
command.
6.0
6.1
WRITE OPERATIONS
Byte Write
Following the Start condition from the master, the
control code (four bits), the Chip Select (three bits) and
the R/W bit (which is a logic low) are clocked onto the
bus by the master transmitter. This indicates to the
addressed slave receiver that the address high byte will
follow after it has generated an Acknowledge bit during
the ninth clock cycle. Therefore, the next byte
transmitted by the master is the high-order byte of the
word address and will be written into the Address
Pointer of the 24XX128. The next byte is the Least
Significant Address Byte. After receiving another
Acknowledge signal from the 24XX128, the master
device will transmit the data word to be written into the
addressed memory location. The 24XX128 acknowl-
edges again and the master generates a Stop
condition. This initiates the internal write cycle and
during this time, the 24XX128 will not generate
Acknowledge signals (Figure 6-1). If an attempt is
made to write to the array with the WP pin held high, the
device will acknowledge the command, but no write
cycle will occur, no data will be written, and the device
will immediately accept a new command. After a byte
Write command, the internal address counter will point
to the address location following the one that was just
written.
6.3
Write Protection
The WP pin allows the user to write-protect the entire
array (0000-3FFF) when the pin is tied to VCC. If tied to
VSS the write protection is disabled. The WP pin is
sampled at the Stop bit for every Write command
(Figure 1-1). Toggling the WP pin after the Stop bit will
have no effect on the execution of the write cycle.
Note: Page write operations are limited to
writing bytes within a single physical
page, regardless of the number of
bytes actually being written. Physical
page boundaries start at addresses
that are integer multiples of the page
buffer size (or ‘page size’) and end at
addresses that are integer multiples of
[page size – 1]. If a Page Write
command attempts to write across a
physical page boundary, the result is
that the data wraps around to the
beginning of the current page (over-
writing data previously stored there),
instead of being written to the next
page, as might be expected. It is,
therefore, necessary for the applica-
tion software to prevent page write
operations that would attempt to cross
a page boundary.
6.2
Page Write
The write control byte, word address, and the first data
byte are transmitted to the 24XX128 in much the same
way as in a byte write. The exception is that instead of
generating a Stop condition, the master transmits up to
63 additional bytes, which are temporarily stored in the
on-chip page buffer, and will be written into memory
once the master has transmitted a Stop condition.
Upon receipt of each word, the six lower Address
Pointer bits are internally incremented by ‘1’. If the
FIGURE 6-1:
BYTE WRITE
S
Bus Activity
Master
T
S
Control
Byte
Address
High Byte
Address
Low Byte
A
T
O
P
Data
R
T
A A A
0
SDA Line
xx
S
1 0 1 0
P
2 1 0
A
C
K
A
C
K
A
C
K
A
C
K
Bus Activity
x
= “don’t care” bit
FIGURE 6-2:
PAGE WRITE
S
T
S
T
O
P
Control
Byte
Address
High Byte
Address
Low Byte
Bus Activity
Master
A
Data Byte 0
Data Byte 63
R
T
A A A
SDA Line
xx
P
S
10 1 0
0
2 1 0
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
Bus Activity
x
= “don’t care” bit
DS21191P-page 8
© 2007 Microchip Technology Inc.
24AA128/24LC128/24FC128
FIGURE 7-1:
ACKNOWLEDGE
POLLING FLOW
7.0
ACKNOWLEDGE POLLING
Since the device will not acknowledge during a write
cycle, this can be used to determine when the cycle is
complete (This feature can be used to maximize bus
throughput). Once the Stop condition for a Write
command has been issued from the master, the device
initiates the internally timed write cycle. ACK polling
can be initiated immediately. This involves the master
sending a Start condition, followed by the control byte
for a Write command (R/W = 0). If the device is still
busy with the write cycle, then no ACK will be returned.
If no ACK is returned, the Start bit and control byte must
be resent. If the cycle is complete, then the device will
return the ACK and the master can then proceed with
the next Read or Write command. See Figure 7-1 for
flow diagram.
Send
Write Command
Send Stop
Condition to
Initiate Write Cycle
Send Start
Send Control Byte
with R/W = 0
Did Device
Acknowledge
(ACK = 0)?
No
Yes
Next
Operation
© 2007 Microchip Technology Inc.
DS21191P-page 9
24AA128/24LC128/24FC128
8.2
Random Read
8.0
READ OPERATION
Random read operations allow the master to access
any memory location in a random manner. To perform
this type of read operation, the word address must first
be set. This is done by sending the word address to the
24XX128 as part of a write operation (R/W bit set to
‘0’). Once the word address is sent, the master gener-
ates a Start condition following the acknowledge. This
terminates the write operation, but not before the inter-
nal Address Pointer is set. The master then issues the
control byte again, but with the R/W bit set to a ‘1’. The
24XX128 will then issue an acknowledge and transmit
the 8-bit data word. The master will not acknowledge
the transfer but does generate a Stop condition, which
causes the 24XX128 to discontinue transmission
(Figure 8-2). After a random Read command, the
internal address counter will point to the address
location following the one that was just read.
Read operations are initiated in much the same way as
write operations with the exception that the R/W bit of
the control byte is set to ‘1’. There are three basic types
of read operations: current address read, random read
and sequential read.
8.1
Current Address Read
The 24XX128 contains an address counter that main-
tains the address of the last word accessed, internally
incremented by ‘1’. Therefore, if the previous read
access was to address ‘n’ (n is any legal address), the
next current address read operation would access data
from address n + 1.
Upon receipt of the control byte with R/W bit set to ‘1’,
the 24XX128 issues an acknowledge and transmits the
8-bit data word. The master will not acknowledge the
transfer, but does generate a Stop condition and the
24XX128 discontinues transmission (Figure 8-1).
8.3
Sequential Read
Sequential reads are initiated in the same way as a
random read except that after the 24XX128 transmits
the first data byte, the master issues an acknowledge
as opposed to the Stop condition used in a random
read. This acknowledge directs the 24XX128 to
transmit the next sequentially addressed 8-bit word
(Figure 8-3). Following the final byte transmitted to the
master, the master will NOT generate an acknowledge
but will generate a Stop condition. To provide
sequential reads, the 24XX128 contains an internal
Address Pointer which is incremented by one at the
completion of each operation. This Address Pointer
allows the entire memory contents to be serially read
during one operation. The internal Address Pointer will
automatically roll over from address 3FFF to address
0000 if the master acknowledges the byte received
from the array address 3FFF.
FIGURE 8-1:
CURRENT ADDRESS
READ
S
T
A
R
T
S
T
O
P
Bus Activity
Master
Data
Byte
Control
Byte
A A A
2 1 0
SDA Line
S 1 0 1 0
1
P
A
C
K
N
O
Bus Activity
A
C
K
FIGURE 8-2:
RANDOM READ
S
T
A
R
T
S
Bus Activity
Master
T
A
R
T
S
T
O
P
Control
Byte
Address
High Byte
Address
Low Byte
Control
Byte
Data
Byte
A A A
2 1 0
A A A
2 1 0
SDA Line
x x
S
1 0 1 0
0
S
1 0 1 0
1
P
N
O
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
Bus Activity
x
= “don’t care” bit
FIGURE 8-3:
SEQUENTIAL READ
S
Control
Byte
Bus Activity
Master
T
Data (n)
Data (n + 1)
Data (n + x)
Data (n + 2)
O
P
P
SDA Line
N
O
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
Bus Activity
DS21191P-page 10
© 2007 Microchip Technology Inc.
24AA128/24LC128/24FC128
9.0
9.1
PACKAGING INFORMATION
Package Marking Information
8-Lead PDIP (300 mil)
Example:
24AA128
I/P 017
XXXXXXXX
T/XXXNNN
YYWW
e
3
0510
8-Lead SOIC (3.90 mm)
Example:
24LC128I
XXXXXXXT
XXXXYYWW
SN
0510
e
3
NNN
017
8-Lead SOIC (5.28 mm)
Example:
24LC128
XXXXXXXX
T/XXXXXX
YYWWNNN
e
3
I/SM
0510017
Example:
8-Lead TSSOP
XXXX
TYWW
4LC
I510
NNN
017
© 2007 Microchip Technology Inc.
DS21191P-page 11
24AA128/24LC128/24FC128
Package Marking Information (Continued)
8-Lead MSOP
Example:
XXXXXT
4L128I
051017
YWWNNN
8-Lead DFN-S
Example:
24LC128
XXXXXXX
T/XXXXX
YYWW
I/MF
0510
017
NNN
Legend: XX...X Part number or part number code
T
Temperature (I, E)
Y
Year code (last digit of calendar year)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code (2 characters for small packages)
Pb-free JEDEC designator for Matte Tin (Sn)
YY
WW
NNN
e
3
Note: For very small packages with no room for the Pb-free JEDEC designator
, the marking will only appear on the outer carton or reel label.
3
e
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
*Standard device marking consists of Microchip part number, year code, week code, and traceability code. For
device marking beyond this, certain price adders apply. Please check with your Microchip Sales Office.
First Line Marking Codes
Part No.
24AA128
24LC128
24FC128
TSSOP Package Codes
MSOP Package Codes
4A128T
4AC
4LC
4FC
4L128T
4F128T
DS21191P-page 12
© 2007 Microchip Technology Inc.
24AA128/24LC128/24FC128
8-Lead Plastic Dual In-Line (P or PA) – 300 mil Body [PDIP]
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
N
NOTE 1
E1
3
1
2
D
E
A2
A
L
A1
c
e
eB
b1
b
Units
INCHES
Dimension Limits
MIN
NOM
8
MAX
Number of Pins
Pitch
N
e
.100 BSC
–
Top to Seating Plane
A
–
.210
.195
–
Molded Package Thickness
Base to Seating Plane
Shoulder to Shoulder Width
Molded Package Width
Overall Length
A2
A1
E
.115
.015
.290
.240
.348
.115
.008
.040
.014
–
.130
–
.310
.250
.365
.130
.010
.060
.018
–
.325
.280
.400
.150
.015
.070
.022
.430
E1
D
Tip to Seating Plane
Lead Thickness
L
c
Upper Lead Width
b1
b
Lower Lead Width
Overall Row Spacing §
eB
Notes:
1. Pin 1 visual index feature may vary, but must be located with the hatched area.
2. § Significant Characteristic.
3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" per side.
4. Dimensioning and tolerancing per ASME Y14.5M.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
Microchip Technology Drawing C04-018B
© 2007 Microchip Technology Inc.
DS21191P-page 13
24AA128/24LC128/24FC128
8-Lead Plastic Small Outline (SN or OA) – Narrow, 3.90 mm Body [SOIC]
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
D
e
N
E
E1
NOTE 1
1
2
3
α
h
b
h
c
φ
A2
A
L
A1
L1
β
Units
MILLIMETERS
Dimension Limits
MIN
NOM
MAX
Number of Pins
Pitch
N
e
8
1.27 BSC
Overall Height
A
–
–
1.75
–
Molded Package Thickness
Standoff
A2
A1
E
1.25
0.10
–
§
–
0.25
Overall Width
6.00 BSC
Molded Package Width
Overall Length
Chamfer (optional)
Foot Length
E1
D
h
3.90 BSC
4.90 BSC
0.25
0.40
–
0.50
1.27
L
–
Footprint
L1
φ
1.04 REF
Foot Angle
0°
0.17
0.31
5°
–
–
–
–
–
8°
Lead Thickness
Lead Width
c
0.25
0.51
15°
b
Mold Draft Angle Top
Mold Draft Angle Bottom
α
β
5°
15°
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. § Significant Characteristic.
3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side.
4. Dimensioning and tolerancing per ASME Y14.5M.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
Microchip Technology Drawing C04-057B
DS21191P-page 14
© 2007 Microchip Technology Inc.
24AA128/24LC128/24FC128
8-Lead Plastic Small Outline (SM) – Medium, 5.28 mm Body [SOIJ]
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
D
N
E
E1
1
2
e
b
α
c
φ
A2
A
β
A1
L
Units
MILLIMETERS
Dimension Limits
MIN
NOM
MAX
Number of Pins
Pitch
N
e
8
1.27 BSC
Overall Height
A
1.77
1.75
0.05
7.62
5.11
5.13
0.51
0°
–
–
–
–
–
–
–
–
–
–
–
–
2.03
1.98
0.25
8.26
5.38
5.33
0.76
8°
Molded Package Thickness
Standoff §
A2
A1
E
Overall Width
Molded Package Width
Overall Length
E1
D
L
Foot Length
Foot Angle
φ
c
Lead Thickness
Lead Width
0.15
0.36
–
0.25
0.51
15°
b
Mold Draft Angle Top
Mold Draft Angle Bottom
α
β
–
15°
Notes:
1. SOIJ, JEITA/EIAJ Standard, formerly called SOIC.
2. § Significant Characteristic.
3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.25 mm per side.
Microchip Technology Drawing C04-056B
© 2007 Microchip Technology Inc.
DS21191P-page 15
24AA128/24LC128/24FC128
8-Lead Plastic Thin Shrink Small Outline (ST) – 4.4 mm Body [TSSOP]
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
D
N
E
E1
NOTE 1
1
2
b
e
c
φ
A
A2
A1
L
L1
Units
MILLIMETERS
Dimension Limits
MIN
NOM
MAX
Number of Pins
Pitch
N
e
8
0.65 BSC
Overall Height
A
–
–
1.20
1.05
0.15
Molded Package Thickness
Standoff
A2
A1
E
0.80
0.05
1.00
–
Overall Width
6.40 BSC
Molded Package Width
Molded Package Length
Foot Length
E1
D
4.30
2.90
0.45
4.40
4.50
3.10
0.75
3.00
L
0.60
Footprint
L1
φ
1.00 REF
Foot Angle
0°
–
–
–
8°
Lead Thickness
Lead Width
c
0.09
0.20
0.30
b
0.19
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side.
3. Dimensioning and tolerancing per ASME Y14.5M.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
Microchip Technology Drawing C04-086B
DS21191P-page 16
© 2007 Microchip Technology Inc.
24AA128/24LC128/24FC128
8-Lead Plastic Micro Small Outline Package (MS or UA) [MSOP]
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
D
N
E
E1
NOTE 1
2
b
1
e
c
φ
A2
A
L
L1
A1
Units
MILLIMETERS
Dimension Limits
MIN
NOM
MAX
Number of Pins
Pitch
N
e
8
0.65 BSC
Overall Height
A
–
–
1.10
0.95
0.15
Molded Package Thickness
Standoff
A2
A1
E
0.75
0.00
0.85
–
4.90 BSC
3.00 BSC
3.00 BSC
0.60
Overall Width
Molded Package Width
Overall Length
Foot Length
E1
D
L
0.40
0.80
Footprint
L1
φ
0.95 REF
–
Foot Angle
0°
8°
Lead Thickness
c
0.08
–
0.23
0.40
Lead Width
b
0.22
–
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side.
3. Dimensioning and tolerancing per ASME Y14.5M.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
Microchip Technology Drawing C04-111B
© 2007 Microchip Technology Inc.
DS21191P-page 17
24AA128/24LC128/24FC128
8-Lead Plastic Dual Flat, No Lead Package (MF) – 6x5 mm Body [DFN-S]
PUNCH SINGULATED
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
D
e
L
D1
b
N
N
K
E
E2
E1
EXPOSED
PAD
NOTE 1
1
2
2
1
NOTE 1
D2
TOP VIEW
BOTTOM VIEW
φ
A2
A
A3
A1
NOTE 2
Units
MILLIMETERS
NOM
Dimension Limits
MIN
MAX
Number of Pins
Pitch
N
e
8
1.27 BSC
0.85
Overall Height
A
–
–
1.00
0.80
0.05
Molded Package Thickness
Standoff
A2
A1
A3
D
0.65
0.00
0.01
Base Thickness
0.20 REF
4.92 BSC
4.67 BSC
4.00
Overall Length
Molded Package Length
Exposed Pad Length
Overall Width
D1
D2
E
3.85
4.15
5.99 BSC
5.74 BSC
2.31
Molded Package Width
Exposed Pad Width
Contact Width
E1
E2
b
2.16
0.35
0.50
0.20
–
2.46
0.47
0.75
–
0.40
Contact Length
L
0.60
Contact-to-Exposed Pad
Model Draft Angle Top
K
–
φ
–
12°
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Package may have one or more exposed tie bars at ends.
3. Dimensioning and tolerancing per ASME Y14.5M.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
Microchip Technology Drawing C04-113B
DS21191P-page 18
© 2007 Microchip Technology Inc.
24AA128/24LC128/24FC128
APPENDIX A: REVISION HISTORY
Revision L
Corrections to Section 1.0, Electrical Characteristics.
Revision M
Added 1.8V 400 kHz option for 24FC128.
Revision N
Revised Sections 2.1, 2.4 and 6.3. Removed 14-Lead
TSSOP Package.
Revision P
Changed 1.8V to 1.7V throughout document; Revised
Features Section; Replaced Package Drawings;
Revised Product ID Section.
© 2007 Microchip Technology Inc.
DS21191P-page 19
24AA128/24LC128/24FC128
NOTES:
DS21191P-page 20
© 2007 Microchip Technology Inc.
24AA128/24LC128/24FC128
THE MICROCHIP WEB SITE
CUSTOMER SUPPORT
Microchip provides online support via our WWW site at
www.microchip.com. This web site is used as a means
to make files and information easily available to
customers. Accessible by using your favorite Internet
browser, the web site contains the following
information:
Users of Microchip products can receive assistance
through several channels:
• Distributor or Representative
• Local Sales Office
• Field Application Engineer (FAE)
• Technical Support
• Product Support – Data sheets and errata,
application notes and sample programs, design
resources, user’s guides and hardware support
documents, latest software releases and archived
software
• Development Systems Information Line
Customers
should
contact
their
distributor,
representative or field application engineer (FAE) for
support. Local sales offices are also available to help
customers. A listing of sales offices and locations is
included in the back of this document.
• General Technical Support – Frequently Asked
Questions (FAQ), technical support requests,
online discussion groups, Microchip consultant
program member listing
Technical support is available through the web site
at: http://support.microchip.com
• Business of Microchip – Product selector and
ordering guides, latest Microchip press releases,
listing of seminars and events, listings of
Microchip sales offices, distributors and factory
representatives
CUSTOMER CHANGE NOTIFICATION
SERVICE
Microchip’s customer notification service helps keep
customers current on Microchip products. Subscribers
will receive e-mail notification whenever there are
changes, updates, revisions or errata related to a
specified product family or development tool of interest.
To register, access the Microchip web site at
www.microchip.com, click on Customer Change
Notification and follow the registration instructions.
© 2007 Microchip Technology Inc.
DS21191P-page 21
24AA128/24LC128/24FC128
READER RESPONSE
It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip prod-
uct. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation
can better serve you, please FAX your comments to the Technical Publications Manager at (480) 792-4150.
Please list the following information, and use this outline to provide us with your comments about this document.
To:
Technical Publications Manager
Reader Response
Total Pages Sent ________
RE:
From:
Name
Company
Address
City / State / ZIP / Country
Telephone: (_______) _________ - _________
FAX: (______) _________ - _________
Application (optional):
Would you like a reply?
Y
N
24AA128/24LC128/24FC128
DS21191P
Literature Number:
Device:
Questions:
1. What are the best features of this document?
2. How does this document meet your hardware and software development needs?
3. Do you find the organization of this document easy to follow? If not, why?
4. What additions to the document do you think would enhance the structure and subject?
5. What deletions from the document could be made without affecting the overall usefulness?
6. Is there any incorrect or misleading information (what and where)?
7. How would you improve this document?
DS21191P-page 22
© 2007 Microchip Technology Inc.
24AA128/24LC128/24FC128
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
Examples:
PART NO.
Device
X
/XX
a) 24AA128-I/P:
Industrial Temp.,
Temperature
Range
Package
1.7V, PDIP package.
b) 24AA128T-I/SN: Tape and Reel,
Industrial Temp., 1.7V, SOIC
package.
Device:
24AA128:
128 Kbit 1.7V I2C Serial
EEPROM
24AA128T: 128 Kbit 1.7V I2C Serial
EEPROM (Tape and Reel)
24LC128:
c) 24AA128-I/ST:
Industrial Temp.,
1.7V, TSSOP package.
128 Kbit 2.5V I2C Serial
EEPROM
d) 24AA128-I/MS: Industrial Temp.,
1.7V, MSOP package.
24LC128T: 128 Kbit 2.5V I2C Serial
EEPROM (Tape and Reel)
24FC128:
e) 24LC128-E/P:
Extended Temp.,
2.5V, PDIP package.
128 Kbit High Speed I2C Serial
EEPROM
f) 24LC128-I/SN: Industrial Temp.,
2.5V, SOIC package.
24FC128T: 128 Kbit High Speed I2C Serial
EEPROM (Tape and Reel)
g) 24LC128T-I/SN: Tape and Reel,
Industrial Temp., 2.5V, SOIC
package.
Temperature
Range:
I
E
=
=
-40°C to +85°C
-40°C to +125°C
h) 24LC128-I/MS: Industrial Temp.,
2.5V, MSOP package.
i) 24FC128-I/P:
Industrial Temp.,
Package:
P
= Plastic DIP (300 mil body), 8-lead
1.7V, High Speed, PDIP package.
SN = Plastic SOIC (3.90 mm body), 8-lead
SM = Plastic SOIC (5.28 mm body), 8-lead
ST = Plastic TSSOP (4.4 mm), 8-lead
MF = Dual, Flat, No Lead (DFN)(6x5 mm
body), 8-lead
j) 24FC128-I/SN: Industrial Temp.,
1.7V, High Speed, SOIC package.
k) 24FC128T-I/SN: Tape and Reel,
Industrial Temp., 1.7V, High Speed,
SOIC package
MS = Plastic Micro Small Outline (MSOP),
8-lead
© 2007 Microchip Technology Inc.
DS21191P-page23
24AA128/24LC128/24FC128
NOTES:
DS21191P-page24
© 2007 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, KEELOQ, KEELOQ logo, microID, MPLAB, PIC,
PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and
SmartShunt are registered trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries.
AmpLab, FilterLab, Linear Active Thermistor, Migratable
Memory, MXDEV, MXLAB, PS logo, SEEVAL, SmartSensor
and The Embedded Control Solutions Company are
registered trademarks of Microchip Technology Incorporated
in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, ECAN,
ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,
In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi,
MPASM, MPLAB Certified logo, MPLIB, MPLINK, PICkit,
PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal,
PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB,
rfPICDEM, Select Mode, Smart Serial, SmartTel, Total
Endurance, UNI/O, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2007, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona, Gresham, Oregon and Mountain View, California. The
Company’s quality system processes and procedures are for its PIC®
MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial
EEPROMs, microperipherals, nonvolatile memory and analog
products. In addition, Microchip’s quality system for the design and
manufacture of development systems is ISO 9001:2000 certified.
© 2007 Microchip Technology Inc.
DS21191P-page 25
WORLDWIDE SALES AND SERVICE
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Habour City, Kowloon
Hong Kong
Tel: 852-2401-1200
Fax: 852-2401-3431
India - Bangalore
Tel: 91-80-4182-8400
Fax: 91-80-4182-8422
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://support.microchip.com
Web Address:
www.microchip.com
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
India - New Delhi
Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
India - Pune
Tel: 91-20-2566-1512
Fax: 91-20-2566-1513
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Japan - Yokohama
Tel: 81-45-471- 6166
Fax: 81-45-471-6122
China - Beijing
Tel: 86-10-8528-2100
Fax: 86-10-8528-2104
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Korea - Gumi
Tel: 82-54-473-4301
Fax: 82-54-473-4302
Boston
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Korea - Seoul
China - Fuzhou
Tel: 86-591-8750-3506
Fax: 86-591-8750-3521
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
Malaysia - Penang
Tel: 60-4-646-8870
Fax: 60-4-646-5086
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
Kokomo
Kokomo, IN
Tel: 765-864-8360
Fax: 765-864-8387
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
Taiwan - Hsin Chu
Tel: 886-3-572-9526
Fax: 886-3-572-6459
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-536-4803
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
China - Shunde
Tel: 86-757-2839-5507
Fax: 86-757-2839-5571
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
Santa Clara
Santa Clara, CA
Tel: 408-961-6444
Fax: 408-961-6445
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
China - Xian
Tel: 86-29-8833-7250
Fax: 86-29-8833-7256
12/08/06
DS21191P-page 26
© 2007 Microchip Technology Inc.
相关型号:
24AA128T-I/MFG
16K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8, 6 X 5 MM, ROHS COMPLIANT, PLASTIC, DFN-8
MICROCHIP
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