24LC014HT-E/P [MICROCHIP]
1K I2C™ Serial EEPROM with Half-Array Write-Protect; 1K I2C ™串行EEPROM,带有半阵列写保护型号: | 24LC014HT-E/P |
厂家: | MICROCHIP |
描述: | 1K I2C™ Serial EEPROM with Half-Array Write-Protect |
文件: | 总28页 (文件大小:458K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
24AA014H/24LC014H
1K I2C™ Serial EEPROM with Half-Array Write-Protect
Device Selection Table
Description:
Part
Number
VCC
Range
Max.
Clock
Temp.
Range
The Microchip Technology Inc. 24AA014H/24LC014H
is a 1 Kbit Serial Electrically Erasable PROM with
operation down to 1.7V. The device is organized as a
single block of 128 x 8-bit memory with a 2-wire serial
interface. Low-current design permits operation with
maximum standby and active currents of only 1 μA and
400 μA, respectively. The device has a page write
capability for up to 16 bytes of data. Functional address
lines allow the connection of up to eight 24AA014H/
24LC014H devices on the same bus for up to 8 Kbits of
contiguous EEPROM memory. The device is available
in the standard 8-pin PDIP, 8-pin SOIC (150 mil),
TSSOP, 2x3 TDFN and MSOP packages.
24AA014H 1.7V-5.5V 400 kHz(1)
24LC014H 2.5V-5.5V 1 MHz
I
I, E
Note 1: 100 kHz for VCC < 1.8V
Features:
• Single-Supply with Operation down to 1.7V
• Low-Power CMOS Technology:
- 400 μA active current, maximum
- 1 μA standby current, maximum (I-temp)
• Organized as a Single Block of 128 Bytes
(128 x 8)
Package Types
SOIC, TSSOP
PDIP, MSOP
• 2-Wire Serial Interface Bus, I2C™ Compatible
• Schmitt Trigger Inputs for Noise Suppression
• Output Slope Control to Eliminate Ground Bounce
• 100 kHz and 400 kHz Compatibility
A0
1
8
VCC
1
2
8
7
A0
A1
VCC
WP
A1
A2
2
3
4
7
6
5
WP
SCL
SDA
3
4
6
5
A2
SCL
SDA
VSS
• 1 MHz Compatibility (LC)
VSS
• Page Write Buffer for up to 16 Bytes
TDFN
• Self-Timed Write Cycle (including Auto-Erase)
• Hardware Write Protection for Half Array
(40h-7Fh)
1
VCC
WP
A0
8
7
6
5
A1
2
3
4
• Address Lines Allow up to Eight Devices on Bus
• 1 Million Erase/Write Cycles
SCL
SDA
A2
VSS
• ESD Protection > 4,000V
• Data Retention > 200 Years
Block Diagram
• Factory Programming (QTP) Available
• Pb-Free and RoHS Compliant
WP
A0 A1 A2
HV Generator
• 8-pin PDIP, SOIC, TSSOP, TDFN and MSOP
Packages
I/O
Control
Logic
Memory
Control
Logic
• Available for Extended Temperature Ranges:
EEPROM
Array
- Industrial (I):
-40°C to +85°C
-40°C to +125°C
XDEC
- Automotive (E):
SDA
SCL
Write-Protect
Circuitry
VCC
VSS
YDEC
Sense Amp.
R/W Control
© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 1
24AA014H/24LC014H
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:
All parameters apply across the
specified operating ranges unless
otherwise noted.
Industrial (I):
VCC = +1.7V to 5.5V
TA = -40°C to +85°C
TA = -40°C to +125°C
Automotive (E): VCC = +2.5V to 5.5V
Parameter
Symbol
Min.
Max.
Units
Conditions
SCL and SDA pins:
High-level input voltage
VIH
0.7 VCC
—
—
0.3 VCC
—
V
V
V
V
Low-level input voltage
VIL
Hysteresis of Schmitt Trigger inputs
Low-level output voltage
VHYS
VOL
0.05 VCC
—
(Note 1)
0.40
IOL = 3.0 mA, VCC = 4.5V
IOL = 2.1 mA, VCC = 2.5V
Input leakage current
ILI
—
—
—
±1
±1
10
μΑ
μA
pF
VIN = VSS or VCC, WP = Vss
VOUT = VSS or VCC
Output leakage current
ILO
Pin capacitance (all inputs/outputs)
CIN, COUT
VCC = 5.0V (Note 1)
TA = 25°C, f = 1 MHz
Operating current
Standby current
ICC Read
ICC Write
ICCS
—
—
—
400
3
μA
mA
μA
VCC = 5.5V, SCL = 400 kHz
VCC = 5.5V
1
VCC = 5.5V, SDA = SCL = VCC
WP = VSS, A0, A1, A2 = VSS
Note 1: This parameter is periodically sampled and not 100% tested.
DS22077B-page 2
Preliminary
© 2008 Microchip Technology Inc.
24AA014H/24LC014H
TABLE 1-2:
AC CHARACTERISTICS
Electrical Characteristics:
AC CHARACTERISTICS
Industrial (I):
Automotive (E):
VCC = +1.7V to 5.5V
VCC = +2.5V to 5.5V
TA = -40°C to +85°C
TA = -40°C to +125°C
Param.
Symbol
No.
Characteristic
Clock frequency
Min.
Max.
Units
Conditions
1
2
3
4
5
6
7
FCLK
THIGH
TLOW
TR
—
—
—
100
400
1000
kHz
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
Clock high time
4000
600
500
—
—
—
ns
ns
ns
ns
ns
ns
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
Clock low time
4700
1300
500
—
—
—
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
SDA and SCL rise time (Note 1)
SDA and SCL fall time (Note 1)
Start condition hold time
Start condition setup time
—
—
—
1000
300
300
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
TF
—
—
—
1000
300
300
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
THD:STA
TSU:STA
4000
600
250
—
—
—
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
4700
600
250
—
—
—
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
8
9
THD:DAT
TSU:DAT
Data input hold time
Data input setup time
0
—
ns
ns
(Note 2)
250
100
100
—
—
—
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
10
11
12
13
14
16
TSU:STO
TSU:WP
THD:WP
TAA
Stop condition setup time
WP setup time
4000
600
250
—
—
—
ns
ns
ns
ns
ns
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
4000
600
600
—
—
—
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
WP hold time
4700
600
600
—
—
—
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
Output valid from clock (Note 2)
—
—
—
3500
900
400
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
TBUF
Bus free time: Time the bus must
be free before a new transmission
can start
1300
4700
4700
—
—
—
1.7V ≤ VCC < 1.8V
1.8V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V (24LC014H)
TSP
Input filter spike suppression
(SDA and SCL pins)
—
50
ns
24AA014H
(Note 1 and Note 3)
17
18
TWC
—
Write cycle time (byte or page)
Endurance
—
5
ms
—
1M
—
cycles 25°C, VCC = 5.5V, Block mode
(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.
© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 3
24AA014H/24LC014H
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)
DS22077B-page 4
Preliminary
© 2008 Microchip Technology Inc.
24AA014H/24LC014H
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
Name
PIN FUNCTION TABLE
8-pin
8-pin
SOIC
8-pin
8-pin
MSOP
8-pin
Function
TDFN
PDIP
TSSOP
A0
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
User Configurable Chip Select
User Configurable Chip Select
User Configurable Chip Select
Ground
A1
A2
VSS
SDA
SCL
WP
VCC
Serial Data
Serial Clock
Write-Protect Input
+1.7V to 5.5V (24AA014H)
+2.5V to 5.5V (24LC014H)
2.1
SDA Serial Data
2.4
WP
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).
WP is the hardware write-protect pin. It must be tied to
VCC or VSS. If tied to VCC, the hardware write protection
is enabled and will protect half of the array (40h-7Fh).
If the WP pin is tied to VSS the hardware write
protection is disabled.
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.
2.5
Noise Protection
The 24AA014H/24LC014H employs a VCC threshold
detector circuit that disables the internal erase/write
logic if the VCC is below 1.5 volts at nominal conditions.
2.2
SCL Serial Clock
The SCL input is used to synchronize the data transfer
to and from the device.
The SCL and SDA inputs have Schmitt Trigger and
filter circuits that suppress noise spikes to assure
proper device operation even on a noisy bus.
2.3
A0, A1, A2
The A0, A1 and A2 inputs are used by the 24AA014H/
24LC014H 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.
Up to eight 24AA014H/24LC014H devices may be
connected to the same bus by using different Chip
Select bit combinations. These inputs must be
connected to either VCC or VSS.
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.
© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 5
24AA014H/24LC014H
4.4
Data Valid (D)
3.0
FUNCTIONAL DESCRIPTION
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.
The 24AA014H/24LC014H supports a bidirectional,
2-wire bus and data transmission protocol. A device
that sends data onto the bus is defined as transmitter,
and a device receiving data as receiver. The bus has
to be controlled by a master device that generates the
Serial Clock (SCL), controls the bus access and gen-
erates the Start and Stop conditions while the
24AA014H/24LC014H works as slave. Both master
and slave can operate as transmitter or receiver, but
the master device determines which mode is
activated.
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.
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 and is,
theoretically, unlimited, though only the last sixteen will
be stored when doing a write operation. When an
overwrite does occur, it will replace data in a first-in
first-out fashion.
4.0
BUS CHARACTERISTICS
The following bus protocol has been defined:
• Data transfer may be initiated only when the bus
is not busy.
4.5
Acknowledge
Each receiving device, when addressed, is required to
generate an acknowledge after the reception of each
byte. The master device must generate an extra clock
pulse which is associated with this Acknowledge bit.
• 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.
Note:
The 24AA014H/24LC014H does not gen-
erate any Acknowledge bits if an internal
programming cycle is in progress.
Accordingly, the following bus conditions have been
defined (Figure 4-1).
4.1
Bus Not Busy (A)
The device that acknowledges has to 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. 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 must leave the data line high to enable the
master to generate the Stop condition (Figure 4-2).
Both data and clock lines remain high.
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.
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 be ended with a Stop condition.
FIGURE 4-1:
DATA TRANSFER SEQUENCE ON THE SERIAL BUS CHARACTERISTICS
(A)
(B)
(C)
(D)
(C) (A)
SCL
SDA
Start
Condition
Stop
Condition
Address or
Acknowledge
Valid
Data
Allowed
to Change
DS22077B-page 6
Preliminary
© 2008 Microchip Technology Inc.
24AA014H/24LC014H
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.
© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 7
24AA014H/24LC014H
FIGURE 5-1:
CONTROL BYTE FORMAT
5.0
DEVICE ADDRESSING
Read/Write Bit
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 four-bit control code; for
the 24AA014H/24LC014H 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 24AA014H/
24LC014H 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.
Chip Select
Control Code
Bits
S
1
0
1
0
A2 A1 A0 R/W ACK
Slave Address
Acknowledge Bit
Start Bit
5.1
Contiguous Addressing Across
Multiple Devices
The last bit of the control byte defines the operation to
be performed. When set to a ‘1’, a read operation is
selected. When set to a ‘0’, a write operation is
selected. Following the Start condition, the 24AA014H/
24LC014H monitors the SDA bus, checking the control
byte being transmitted. Upon receiving a ‘1010’ code
and appropriate Chip Select bits, the slave device
outputs an Acknowledge signal on the SDA line.
Depending on the state of the R/W bit, the 24AA014H/
24LC014H will select a read or write operation.
The Chip Select bits A2, A1 and A0 can be used to
expand the contiguous address space for up to 8K bits
by adding up to eight 24AA014H/24LC014H devices on
the same bus. In this case, software can use A0 of the
control byte as address bit A8, A1 as address bit A9,
and A2 as address bit A10. It is not possible to
sequentially read across device boundaries.
DS22077B-page 8
Preliminary
© 2008 Microchip Technology Inc.
24AA014H/24LC014H
The higher order four bits of the word address remain
constant. If the master should transmit more than 16
bytes prior to generating the Stop condition, the
address counter will roll over and the previously
received data will be overwritten. 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 protected portion of the array
when the hardware write protection has been enabled,
the device will acknowledge the command, but no data
will be written. The write cycle time must be observed
even if write protection is enabled.
6.0
6.1
WRITE OPERATIONS
Byte Write
Following the Start signal from the master, the device
code(4 bits), the Chip Select bits (3 bits) and the R/W
bit (which is a logic low) are placed onto the bus by the
master transmitter. The device will acknowledge this
control byte during the ninth clock pulse. The next byte
transmitted by the master is the word address and will
be written into the Address Pointer of the 24AA014H/
24LC014H. After receiving another Acknowledge
signal from the 24AA014H/24LC014H, the master
device will transmit the data word to be written into the
addressed memory location. The 24AA014H/
24LC014H acknowledges again and the master
generates a Stop condition. This initiates the internal
write cycle and the 24AA014H/24LC014H will not
generate Acknowledge signals during this time
(Figure 6-1). If an attempt is made to write to the
protected portion of the array when the hardware write
protection has been enabled, the device will
acknowledge the command, but no data will be written.
The write cycle time must be observed even if write
protection is enabled.
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 (overwriting
data previously stored there), instead of
being written to the next page, as might be
expected. It is therefore necessary that the
application software 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 24AA014H/24LC014H in the
same way as in a byte write. But instead of generating
a Stop condition, the master transmits up to 15
additional data bytes to the 24AA014H/24LC014H that
are temporarily stored in the on-chip page buffer and
will be written into the memory once the master has
transmitted a Stop condition. Upon receipt of each
word, the four lower order Address Pointer bits are
internally incremented by one.
6.3
Write Protection
The WP pin must be tied to VCC or VSS. If tied to VCC,
half of the array will be write-protected (40h-7Fh). If the
WP pin is tied to VSS, write operations to all address
locations are allowed.
FIGURE 6-1:
BYTE WRITE
S
T
A
R
T
S
Bus Activity
Master
Control
Byte
Word
Address
T
Data
O
P
SDA Line
S
P
A
C
K
A
C
K
A
C
K
Bus Activity
FIGURE 6-2:
PAGE WRITE
S
T
A
R
T
S
T
O
P
Bus Activity
Master
Control
Byte
Word
Address (n)
Data (n)
Data (n +1)
Data (n + 15)
SDA Line
S
P
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
Bus Activity
© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 9
24AA014H/24LC014H
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 and 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, no ACK will be returned. If no
ACK is returned, the Start bit and control byte must be
re-sent. If the cycle is complete, the device will return
the ACK and the master can then proceed with the next
Read or Write command. See Figure 7-1 for a flow
diagram of this operation.
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
DS22077B-page 10
Preliminary
© 2008 Microchip Technology Inc.
24AA014H/24LC014H
Once the word address is sent, the master generates a
Start condition following the acknowledge. This
terminates the write operation, but not before the
internal Address Pointer is set. The master then issues
the control byte again but with the R/W bit set to a ‘1’.
The 24AA014H/24LC014H will then issue an
acknowledge and transmits the eight-bit data word.
The master will not acknowledge the transfer, but does
8.0
READ OPERATIONS
Read operations are initiated in the same way as write
operations, with the exception that the R/W bit of the
slave address is set to ‘1’. There are three basic types
of read operations: current address read, random read
and sequential read.
generate
a Stop condition and the 24AA014H/
8.1
Current Address Read
24LC014H discontinues transmission (Figure 8-2).
After this command, the internal address counter will
point to the address location following the one that was
just read.
The 24AA014H/24LC014H contains an address coun-
ter that maintains the address of the last word
accessed, internally incremented by one. Therefore, if
the previous read access was to address n, the next
current address read operation would access data from
address n + 1. Upon receipt of the slave address with
the R/W bit set to ‘1’, the 24AA014H/24LC014H issues
an acknowledge and transmits the 8-bit data word. The
master will not acknowledge the transfer, but does
8.3
Sequential Read
Sequential reads are initiated in the same way as a
random read except that after the 24AA014H/
24LC014H transmits the first data byte, the master
issues an acknowledge as opposed to a Stop condition
in a random read. This directs the 24AA014H/
24LC014H to transmit the next sequentially addressed
8-bit word (Figure 8-3).
generate
a Stop condition and the 24AA014H/
24LC014H discontinues transmission (Figure 8-1).
8.2
Random Read
To provide sequential reads the 24AA014H/24LC014H
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 07Fh to address
000h.
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
24AA014H/24LC014H as part of a write operation.
FIGURE 8-1:
CURRENT ADDRESS READ
S
T
A
R
T
S
T
O
P
Bus Activity
Master
Control
Byte
Data
SDA Line
P
S
A
C
K
N
O
A
C
Bus Activity
K
© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 11
24AA014H/24LC014H
FIGURE 8-2:
RANDOM READ
S
T
S
T
A
R
T
S
T
O
P
Bus Activity
Master
Control
A
Word
Address (n)
Control
Byte
Data (n)
Byte
R
T
S
P
S
SDA Line
N
O
A
C
K
A
C
K
A
C
K
A
C
K
Bus Activity
FIGURE 8-3:
SEQUENTIAL READ
S
T
O
P
Bus Activity
Master
Control
Byte
Data (n)
Data (n + 1)
Data (n + 2)
Data (n + X)
P
SDA Line
A
C
K
A
C
K
A
C
K
A
C
K
N
O
A
C
K
Bus Activity
DS22077B-page 12
Preliminary
© 2008 Microchip Technology Inc.
24AA014H/24LC014H
9.0
9.1
PACKAGING INFORMATION
Package Marking Information
8-Lead PDIP (300 mil)
Example:
24LC014H
XXXXXXXX
T/XXXNNN
I/P
e
3
12F
YYWW
0821
8-Lead SOIC (3.90 mm)
Example:
24L014HI
XXXXXXXT
e
3
XXXXYYWW
SN
0821
NNN
12F
Example:
8-Lead TSSOP
L14H
I821
12F
XXXX
TYWW
NNN
Example:
8-Lead MSOP
4L14HI
82112F
XXXXT
YWWNNN
8-Lead 2x3 TDFN
Example:
XXX
YWW
NN
AK4
821
12
© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 13
24AA014H/24LC014H
1st Line Marking Codes
MSOP
Part Number
TSSOP
TDFN
I
E
—
I
E
—
I
E
—
24AA014H
24LC014H
A14A
L14H
4A14HI
4L14HI
AK1
AK4
L14A
4L14HE
AK5
Note:
T = Temperature grade (I, E)
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.
e
3
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.
Note:
Please visit www.microchip.com/Pbfree for the latest information on Pb-free conversion.
*Standard OTP marking consists of Microchip part number, year code, week code, and traceability code.
DS22077B-page 14
Preliminary
© 2008 Microchip Technology Inc.
24AA014H/24LC014H
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ꢎꢁ ꢏꢅꢐꢃꢑꢄꢃ%ꢃꢌꢆꢄ&ꢅ,ꢍꢆꢉꢆꢌ&ꢈꢉꢃ!&ꢃꢌꢁ
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1ꢐ,2ꢅ1ꢆ!ꢃꢌꢅꢒꢃ'ꢈꢄ!ꢃꢋꢄꢁꢅꢙꢍꢈꢋꢉꢈ&ꢃꢌꢆꢇꢇꢊꢅꢈ$ꢆꢌ&ꢅ ꢆꢇ"ꢈꢅ!ꢍꢋ*ꢄꢅ*ꢃ&ꢍꢋ"&ꢅ&ꢋꢇꢈꢉꢆꢄꢌꢈ!ꢁ
ꢔꢃꢌꢉꢋꢌꢍꢃꢓ ꢙꢈꢌꢍꢄꢋꢇꢋꢑꢊ ꢒꢉꢆ*ꢃꢄꢑ ,ꢕꢖꢞꢕꢀ<1
© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 15
24AA014H/24LC014H
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢄꢉꢊꢋꢌꢆ ꢕꢄꢈꢈꢆ!ꢎꢊꢈꢋꢐꢃꢆꢑ ꢛꢒꢆMꢆꢛꢄ""ꢗ#$ꢆꢓ%&ꢔꢆꢕꢕꢆꢖꢗꢅꢘꢆꢙ !ꢏ'ꢚ
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ꢍ&&ꢓ255***ꢁ'ꢃꢌꢉꢋꢌꢍꢃꢓꢁꢌꢋ'5ꢓꢆꢌ4ꢆꢑꢃꢄꢑ
D
e
N
E
E1
NOTE 1
1
2
3
α
h
b
h
c
φ
A2
A
L
A1
L1
β
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ꢔꢋꢇ#ꢈ#ꢅꢂꢆꢌ4ꢆꢑꢈꢅꢙꢍꢃꢌ4ꢄꢈ!!
ꢐ&ꢆꢄ#ꢋ%%ꢅꢅꢏ
ꢗ
M
ꢀꢁꢎꢘ
ꢕꢁꢀꢕ
M
M
M
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M
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.
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: ꢈꢉꢆꢇꢇꢅ9ꢈꢄꢑ&ꢍ
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M
M
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1ꢐ,2 1ꢆ!ꢃꢌꢅꢒꢃ'ꢈꢄ!ꢃꢋꢄꢁꢅꢙꢍꢈꢋꢉꢈ&ꢃꢌꢆꢇꢇꢊꢅꢈ$ꢆꢌ&ꢅ ꢆꢇ"ꢈꢅ!ꢍꢋ*ꢄꢅ*ꢃ&ꢍꢋ"&ꢅ&ꢋꢇꢈꢉꢆꢄꢌꢈ!ꢁ
ꢝ.32 ꢝꢈ%ꢈꢉꢈꢄꢌꢈꢅꢒꢃ'ꢈꢄ!ꢃꢋꢄ(ꢅ"!"ꢆꢇꢇꢊꢅ*ꢃ&ꢍꢋ"&ꢅ&ꢋꢇꢈꢉꢆꢄꢌꢈ(ꢅ%ꢋꢉꢅꢃꢄ%ꢋꢉ'ꢆ&ꢃꢋꢄꢅꢓ"ꢉꢓꢋ!ꢈ!ꢅꢋꢄꢇꢊꢁ
ꢔꢃꢌꢉꢋꢌꢍꢃꢓ ꢙꢈꢌꢍꢄꢋꢇꢋꢑꢊ ꢒꢉꢆ*ꢃꢄꢑ ,ꢕꢖꢞꢕꢘꢜ1
DS22077B-page 16
Preliminary
© 2008 Microchip Technology Inc.
24AA014H/24LC014H
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢄꢉꢊꢋꢌꢆ ꢕꢄꢈꢈꢆ!ꢎꢊꢈꢋꢐꢃꢆꢑ ꢛꢒꢆMꢆꢛꢄ""ꢗ#$ꢆꢓ%&ꢔꢆꢕꢕꢆꢖꢗꢅꢘꢆꢙ !ꢏ'ꢚ
ꢛꢗꢊꢃꢜ 3ꢋꢉꢅ&ꢍꢈꢅ'ꢋ!&ꢅꢌ"ꢉꢉꢈꢄ&ꢅꢓꢆꢌ4ꢆꢑꢈꢅ#ꢉꢆ*ꢃꢄꢑ!(ꢅꢓꢇꢈꢆ!ꢈꢅ!ꢈꢈꢅ&ꢍꢈꢅꢔꢃꢌꢉꢋꢌꢍꢃꢓꢅꢂꢆꢌ4ꢆꢑꢃꢄꢑꢅꢐꢓꢈꢌꢃ%ꢃꢌꢆ&ꢃꢋꢄꢅꢇꢋꢌꢆ&ꢈ#ꢅꢆ&ꢅ
ꢍ&&ꢓ255***ꢁ'ꢃꢌꢉꢋꢌꢍꢃꢓꢁꢌꢋ'5ꢓꢆꢌ4ꢆꢑꢃꢄꢑ
© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 17
24AA014H/24LC014H
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢄꢉꢊꢋꢌꢆ()ꢋꢐꢆ )"ꢋꢐ*ꢆ ꢕꢄꢈꢈꢆ!ꢎꢊꢈꢋꢐꢃꢆꢑ (ꢒꢆMꢆ+%+ꢆꢕꢕꢆꢖꢗꢅꢘꢆꢙ( !ꢇꢚ
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ꢍ&&ꢓ255***ꢁ'ꢃꢌꢉꢋꢌꢍꢃꢓꢁꢌꢋ'5ꢓꢆꢌ4ꢆꢑꢃꢄꢑ
D
N
E
E1
NOTE 1
1
2
b
e
c
φ
A
A2
A1
L
L1
6ꢄꢃ&!
ꢔꢚ99ꢚꢔ.ꢙ.ꢝꢐ
ꢒꢃ'ꢈꢄ!ꢃꢋꢄꢅ9ꢃ'ꢃ&!
ꢔꢚ7
7:ꢔ
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DS22077B-page 18
Preliminary
© 2008 Microchip Technology Inc.
24AA014H/24LC014H
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ꢝ.32 ꢝꢈ%ꢈꢉꢈꢄꢌꢈꢅꢒꢃ'ꢈꢄ!ꢃꢋꢄ(ꢅ"!"ꢆꢇꢇꢊꢅ*ꢃ&ꢍꢋ"&ꢅ&ꢋꢇꢈꢉꢆꢄꢌꢈ(ꢅ%ꢋꢉꢅꢃꢄ%ꢋꢉ'ꢆ&ꢃꢋꢄꢅꢓ"ꢉꢓꢋ!ꢈ!ꢅꢋꢄꢇꢊꢁ
ꢔꢃꢌꢉꢋꢌꢍꢃꢓ ꢙꢈꢌꢍꢄꢋꢇꢋꢑꢊ ꢒꢉꢆ*ꢃꢄꢑ ,ꢕꢖꢞꢀꢀꢀ1
© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 19
24AA014H/24LC014H
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢄꢉꢊꢋꢌꢆꢍꢎꢄꢈꢆ.ꢈꢄꢊ$ꢆꢛꢗꢆꢂꢃꢄꢅꢆꢇꢄꢌ*ꢄ-ꢃꢆꢑ,ꢛꢒꢆMꢆ/0ꢓ0ꢔ%12ꢆꢕꢕꢆꢖꢗꢅꢘꢆꢙ(ꢍ.ꢛꢚ
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ꢍ&&ꢓ255***ꢁ'ꢃꢌꢉꢋꢌꢍꢃꢓꢁꢌꢋ'5ꢓꢆꢌ4ꢆꢑꢃꢄꢑ
DS22077B-page 20
Preliminary
© 2008 Microchip Technology Inc.
24AA014H/24LC014H
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢄꢉꢊꢋꢌꢆꢍꢎꢄꢈꢆ.ꢈꢄꢊ$ꢆꢛꢗꢆꢂꢃꢄꢅꢆꢇꢄꢌ*ꢄ-ꢃꢆꢑ,ꢛꢒꢆMꢆ/0ꢓ0ꢔ%12ꢆꢕꢕꢆꢖꢗꢅꢘꢆꢙ(ꢍ.ꢛꢚ
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© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 21
24AA014H/24LC014H
REVISION HISTORY
Revision A (03/2008)
Original release.
Revision B (09/2008)
Added new pin function table; Corrections on DC
Characteristics Table; Updated Section 2.3.
DS22077B-page 22
Preliminary
© 2008 Microchip Technology Inc.
24AA014H/24LC014H
THE MICROCHIP WEB SITE
CUSTOMER SUPPORT
Microchip provides online support via our WWW site at
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© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 23
24AA014H/24LC014H
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
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DS22077B
Literature Number:
Device:
Questions:
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3. Do you find the organization of this document easy to follow? If not, why?
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DS22077B-page 24
Preliminary
© 2008 Microchip Technology Inc.
24AA014H/24LC014H
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) 24AA014H-I/P: Industrial Temperature,
1.7V, PDIP package.
Temperature Package
Range
b) 24AA014H-I/SN: Industrial Temperature,
1.7V, SOIC Package.
c) 24AA014HT-I/ST: Industrial Tempera-
ture, 1.7V, TSSOP Package, Tape and
Reel
Device:
24AA014H: 1.7V, 1 Kbit Addressable Serial EEPROM
24AA014HT: 1.7V, 1 Kbit Addressable Serial EEPROM
(Tape and Reel)
24LC014H: 2.5V, 1 Kbit Addressable Serial EEPROM
24LC014HT: 2.5V, 1 Kbit Addressable Serial EEPROM
(Tape and Reel)
a) 24LC014H-I/P: Industrial Temperature,
2.5V, PDIP Package.
Temperature Range:
Package:
I
E
=
=
-40°C to +85°C
-40°C to +125°C
b) 24LC014HT-E/SN: Automotive Tempera-
ture, 2.5V, SOIC Package, Tape and Reel
c) 24LC014HT-I/MS: Industrial Tempera-
ture, 2.5V, MSOP Package, Tape and
Reel.
P
SN
ST
=
=
=
=
=
Plastic DIP, (300 mil Body), 8-lead
Plastic SOIC, (3.90 mm Body)
TSSOP, (4.4 mm Body), 8-lead
MSOP, (Plastic Micro Small Outline), 8-lead
TDFN, (2x3x0.75 mm Body), 8-lead
MS
MNY(1)
Note 1: “Y” indicates a Nickel Palladium Gold (NiPdAu) finish.
© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 25
24AA014H/24LC014H
NOTES:
DS22077B-page 26
Preliminary
© 2008 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
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Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,
PICSTART, rfPIC, SmartShunt and UNI/O are registered
trademarks of Microchip Technology Incorporated in the
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FilterLab, Linear Active Thermistor, MXDEV, MXLAB,
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, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, In-Circuit Serial
Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, PICkit, PICDEM,
32
PICDEM.net, PICtail, PIC logo, PowerCal, PowerInfo,
PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total
Endurance, 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.
© 2008, 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 design centers in California
and India. 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.
© 2008 Microchip Technology Inc.
Preliminary
DS22077B-page 27
WORLDWIDE SALES AND SERVICE
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Harbour 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 - Daegu
Tel: 82-53-744-4301
Fax: 82-53-744-4302
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 - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
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 - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
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
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
Kokomo
Kokomo, IN
Tel: 765-864-8360
Fax: 765-864-8387
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
Taiwan - Hsin Chu
Tel: 886-3-572-9526
Fax: 886-3-572-6459
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-536-4803
Santa Clara
Santa Clara, CA
Tel: 408-961-6444
Fax: 408-961-6445
China - Xiamen
Tel: 86-592-2388138
Fax: 86-592-2388130
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
01/02/08
DS22077B-page 28
Preliminary
© 2008 Microchip Technology Inc.
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