TC9WMB1AFU(TE12L) [TOSHIBA]

TC9WMB1AFU(TE12L);
TC9WMB1AFU(TE12L)
型号: TC9WMB1AFU(TE12L)
厂家: TOSHIBA    TOSHIBA
描述:

TC9WMB1AFU(TE12L)

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中文:  中文翻译
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TC9WMB1AFK/FU,TC9WMB2AFK/FU  
TOSHIBA CMOS Digital Integrated Circuits Silicon Monolithic  
TC9WMB1AFK,TC9WMB1AFU,TC9WMB2AFK,TC9WMB2AFU  
TC9WMB1AFK/FU: 1024 Bit (128 × 8 Bit) 2 Wire Serial EEPROM  
TC9WMB2AFK/FU: 2048 Bit (256 × 8 Bit) 2 Wire Serial EEPROM  
The TC9WMB1A and TC9WMB2A are electrically  
erasable/programmable nonvolatile memory (EEPROM).  
TC9WMB1AFK,TC9WMB2AFK  
Features  
2-wire serial interface (I2C BUS)  
Single power supply  
Read: V  
Write: V  
= 1.8 to 3.6 V  
= 2.3 to 3.6 V  
CC  
CC  
US8  
Low power consumption: 5 μA (in standby state)  
0.5 mA (in read state)  
TC9WMB1AFU,TC9WMB2AFU  
Operating frequency: 400 kHz (V  
= 2.3 to 3.6 V)  
CC  
Byte write and page (8-byte) write  
Write protection  
Sequential read  
Write time: 10 ms (V  
12 ms (V  
= 3.0 to 3.6 V)  
= 2.3 to 2.7 V)  
CC  
CC  
Rewrite endurance: 105 times  
SM8  
Data retention: 10 years  
Weight:  
SSOP8-P-0.50A: 0.01 g (typ.)  
SSOP8-P-0.65: 0.02 g (typ.)  
Wide operating temperature range: 40 to 85°C  
Package: US8, SM8  
Product Marking  
Pin Assignment (top view)  
V
WP SCL SDA  
CC  
8
US8  
7
6
5
Part number  
9WM  
B
1A, 2A  
Pin 1 index  
1
2
3
4
A0 A1 A2 GND  
SM8  
Part number  
1A, 2A  
LotNo.  
WMB  
Pin 1 index  
1
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TC9WMB1AFK/FU,TC9WMB2AFK/FU  
Block Diagram  
Address inputs  
A0 A1 A2  
Serial clock input  
SCL  
Timing  
Control  
circuit  
Power supply  
V
Power supply  
CC  
generator  
(booster circuit)  
Serial input/output  
SDA  
Write protection input  
WP  
Command  
register  
Memory cell  
GND Ground  
Address  
decoder  
Input/Output  
circuit  
Address  
register  
Data register  
Pin Function  
Pin Name  
SCL  
Input/Output  
Description  
Serial clock input  
Input  
Data is latched on the rising edge of SCL and transferred the falling edge of SCL.  
Serial input/output  
SDA  
Input/output  
This pin must be pulled up with a resistor because it is configured as an N-ch  
open-drain pin for output.  
Write protection input  
A high on this input disables writing. A low on this input enables writing.  
WP  
Input  
Input  
Address input  
This pin is used to configure the slave address.  
A0, A1, A2  
1.8 to 3.6 V (for reading)  
2.3 to 3.6 V (for writing)  
V
CC  
Power supply  
GND  
0 V (GND)  
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Functional Description  
1. Start and Stop Conditions  
When SCL is high, pulling SDA low produces a start condition and pulling SDA high produces a stop  
condition. Every instruction is started when a start condition occurs and terminated when a stop condition  
occurs.  
During a read, a stop condition causes the read to terminate and the device to enter the standby state.  
During a write, a stop condition causes the fetching of write data to terminate, after which writing starts  
automatically. Upon the completion of writing, the device enters the standby state.  
Start conditions of five times or more cannot be generated from stop condition to the next stop condition.  
t
t
t
SU.STO  
SU.STA HD.STA  
SCL  
SDA  
Start condition  
Stop condition  
Figure 1  
2. Modifying Data  
Data on the SDA input can be modified while SCL is low. When SCL is high, modifying the SDA input  
means a start or stop condition.  
t
t
HD.DAT  
SU.DAT  
SCL  
SDA  
Modify data  
Modify data  
Figure 2  
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3. Acknowledge  
Data is transmitted in 8-bit units. The device sends “low” of an acknowledge signal, by pulling SDA  
during the 9th clock cycle, indicating that it has received data normally. The host releases the bus in the 9th  
clock cycle to receive an acknowledge signal.  
During a write operations, the device is always the receiver so that an acknowledge signal is sent each  
time it has received 8-bit of data.  
During a read operations, the device sends an acknowledge signal after it receives an address following a  
start condition. Then, a read data is sent and releases the bus to wait for an acknowledge signal from the  
master. When an acknowledge signal is detected, next address data is sent if a stop condition is not detected.  
If the device does not detect an acknowledge signal, a read operations is stopped, and enters the standby  
mode when a stop condition occurs subsequently.  
If the device does not detect an acknowledge signal nor a stop condition, it keeps the bus released.  
SCL  
1
8
9
SDA  
(input)  
SDA  
(output)  
t
t
DH  
AA  
Start condition  
Acknowledge output  
Figure 3  
4. Device Addressing  
After a start condition occurs, 7-bit device address and a 1-bit read/write instruction code are transferred  
to the device.  
The first four bits are called device code, which must always be “1”, “0”, “1”, “0”. The next two bits are  
called slave address and are used to select a device on the bus. The slave address is compared to the value  
on the address inputs (A0, A1 and A2).  
The least significant bit ( R/W : READ/WRITE ) indicates a read instruction when set to “1” and a write  
instruction when set to “0”.  
An instruction is not executed if the device address does not match the specified value.  
Read/write  
Device address  
instruction code  
Slave address  
Device code  
1
0
1
0
A2  
A1  
A0 R/ W  
LSB  
MSD  
Figure 4  
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5. Write Operation  
(1) Byte write  
A data is written to the specified address at a byte write operation. After a start condition, a device  
address, R/W (= 0), a word address, and write data are received to the device.  
When a stop condition is generated subsequently, write operation starts automatically, rewriting  
the data at the specified address with the input data. A next instruction cannot be received while  
write operation is in progress. Therefore, no acknowledge signal is returned. After writing the data,  
the device automatically enters the standby state.  
S
T
A
R
T
W
R
I
T
E
S
T
O
P
DEVICE  
ADDRESS  
WORD  
ADDRESS  
WRITE  
DATA  
*
A A A  
2 1 0  
WWWWWWWW D D D D D D D D  
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0  
SDA LINE  
1 0 1 0  
0
M
S
B
L R A M  
S / C S  
W
L A  
S C  
B K  
A
C
K
B
K B  
Address  
increment  
*: Optional for the TC9WMB1A.  
Figure 5  
(2) Page write  
A Data is written up to 8 bytes to the specified page at a page write operation. After a start  
condition, a device address, R/W (= 0), a word address (n), and write data (n) are received to the  
device, in the same way as for a byte write operation. Then, write data (n + 1) is immediately received  
without entering a stop condition, while checking that an acknowledge signal is asserted (0).  
The first five bits (W3 to W7) of the word address are the same and the lower three bits (W0 to W2)  
are automatically incremented so that up to 8 bytes of data can be written.  
When the last address within the page is reached, the lower three bits (W0 to W2) of the word  
address are rolled over to the first address of the page. If more than 8 bytes of write data are  
transferred, the last 8 bytes are valid.  
When a stop condition is generated subsequently, write operation starts automatically, rewriting  
the data at the specified addresses with the input data.  
S
T
A
R
T
W
R
I
T
E
S
T
O
P
WORD  
ADDRESS (n)  
DEVICE  
ADDRESS  
WRITE  
DATA (n)  
WRITE  
DATA (n + 1)  
WRITE  
DATA (n + m)  
*
A A A  
2 1 0  
WWWWWWWW D D D D D D D D D D D D D D D D  
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0  
D D D D D D  
5 4 3 2 1 0  
SDA LINE  
1 0 1 0  
0
M
S
B
L R A  
S / C  
W
A
C
K
A
C
K
A
C
K
B
K
Address  
increment  
Address  
increment  
Address  
increment  
*: Optional for the TC9WMB1A.  
Figure 6  
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(3) Acknowledge polling  
Acknowledge polling is a feature for determining whether rewrite operation is in progress. During  
rewrite operation, generate a start condition followed by a device address, and R/W (= 0 or 1). The  
acknowledge feature does not generate an acknowledge signal while rewrite operation is in progress.  
A low acknowledge signal is generated if rewriting has already completed.  
If the next instruction is a write, supply a word address and write data subsequently. If the next  
instruction is a read, supply a stop condition and then start read operation.  
(4) Write protection  
When “high” is received to the write protection (WP) pin, the TC9WMB1A to protect the entire  
memory area from being written and the TC9WMB2A to protect the bottom half (80h to FFh) of the  
memory area from being written. Rewriting is allowed when “low” is received to the write protection  
pin. While a write is in progress, driving the WP pin high does not stop write operation.  
Reading is always enabled regardless of whether the WP pin is “high” or “low”  
6. Read Operation  
Read operation is performed in one of three modes: current address read, random read, and sequential  
read.  
For reading, a device receives a device address and R/W (= 1) after a start condition. After read data is  
sent, terminate a read operation by generating a high acknowledge signal (or releasing the bus without  
supplying an acknowledge signal) and then supplying a stop condition.  
(1) Current address read  
The internal address counter maintains the address that is next to the last accessed (read or  
written) word address (n). In current address read mode, data is read from address n + 1, as indicated  
by the address counter.  
In current address read mode, supplying a device address and R/W (= 1) after a start condition,  
causes the device to generate a low acknowledge signal and send a data at the address indicated by  
the internal address counter.  
The address counter is incremented on the falling edge of the SCL pulse where a data at the eighth  
bit is sent. If the previous operation was reading data from the last address, the current address is  
rolled over to address 0. If the previous operation was writing data to the last address of the page, the  
address is rolled over to the first address of the page.  
The current address is maintained in an internal register so that it is lost when the power is turned  
off. For the first read after power-up, specify an address by performing a random read.  
S
T
A
R
T
R
E
A
D
S
T
O
P
DEVICE  
ADDRESS  
A A A  
2 1 0  
D D D D D D D D  
7 6 5 4 3 2 1 0  
SDA LINE  
1 0 1 0  
1
M
S
B
L R A  
S / C  
W
N
O
READ  
DATA  
B
K
A
C
K
Address  
increment  
Figure 7  
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2007-10-19  
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(2) Random read  
A random read reads data at a specified address. A dummy write is necessary to specify an address.  
In random read mode, supply a device address, R/W (= 0), and a word address after a start  
condition. Unlike a byte or page write, where write data is supplied immediately, a dummy write only  
specifies a word address. Then, supply a start condition and transfer a device address and R/W (= 1)  
in the same way as for a current address read, to read data from the specified address.  
S
T
A
R
T
W
R
I
T
E
S
T
A
R
T
R
E
A
D
S
T
O
P
DEVICE  
ADDRESS  
WORD  
ADDRESS (n)  
DEVICE  
ADDRESS  
*
A AA  
2 1 0  
WWWWWWWW  
7 6 5 4 3 2 1 0  
A A A  
2 1 0  
D D D D D D D D  
7 6 5 4 3 2 1 0  
SDA LINE  
1 0 1 0  
0
1 0 1 0  
1
M
S
B
L R A M  
S / C S  
W
L A  
S C  
B K  
M
S
B
L
S
B
A
C
K
N
O
DATA (n)  
READ  
DATA (n)  
B
K B  
A
C
K
DUMMY WRITE  
*: Optional for the TC9WMB1A.  
Address  
increment  
Figure 8  
(3) Sequential read  
A sequential read reads data sequentially from successive word addresses.  
For either current address read or random read, upon receiving a start condition, a device address  
and R/W (= 1), an acknowledge (low) is placed on the SDA line, followed by the data at the address  
pointed to by the internal address counter. When an acknowledge (low) is then received, the word  
address is automatically incremented so that the next data is driven out.  
After the last address is reached, the word address is rolled over to address 0.  
R
E
A
D
S
T
O
P
A
C
K
A
C
K
A
C
K
DEVICE  
ADDRESS  
D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D  
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0  
SDA LINE  
1
R A  
/ C  
W
N
O
DATA (n)  
DATA (n + 1)  
DATA (n + 2)  
DATA (n + m)  
READ  
DATA (n)  
READ  
DATA (n + 1)  
READ  
DATA (n + 2)  
READ  
DATA (n + m)  
K
A
C
K
Address  
increment  
Address  
increment  
Address  
increment  
Address  
increment  
Figure 9  
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7. Notes on Use  
(1) Powering up the device  
This device contains a power-on clear circuit, which initializes the internal circuit of the device  
when the power is turned on. After initialization, the address counter returns to the first address 00H  
and the SDA pin goes to the high-impedance state (standby state). If initialization fails, the device  
may malfunction. When powering up the device, observe the following precautions to assure that the  
clear circuit will operate normally:  
(a) Pull SCL and SDA “high”.  
(b) The power rising time (t ) must be 10 ms or less.  
R
(c) After turning off the power, wait at least 100 ms (t  
device again.  
) before attempting to power up the  
OFF  
(d) The supply voltage must rise from 0 V.  
(e) After turning on the power, wait at least 10 ms before attempting to send an instruction to the  
device.  
V
CC  
V
CC  
0 V  
0 V  
t
t
R
OFF  
10 ms  
Figure 10  
(2) Pulling up the SDA and SCL pins  
The device requires the SDA and SCL pins to be pulled up with an external resistor. The  
recommended pull-up resistance range is 1 kΩ to 10 kΩ.  
(3) Noise elimination time for the SDA and SCL pins  
The device contains a low-pass filter for eliminating noise on the SDA and SCL pins. Its guaranteed  
value corresponds to the noise suppression time Ti, given in the AC characteristics table.  
(4) Write operation  
(a) The address counter is incremented when a write instruction is received successfully. It is  
incremented on the falling edge of the SCL pulse where the least significant bit of data is  
received.  
D1  
D0  
Increment  
Figure 11 Increment Timing Diagram  
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2007-10-19  
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(b) If a start condition is issued while the device is receiving a write instruction (device address,  
R/W, address, and data), this write instruction is discarded and the next instruction is accepted.  
(A byte write is given below as an example. This is the same as a page write.)  
Write instruction  
Start Device address R/W  
ACK  
Address  
ACK  
Data  
ACK Stop  
Incremented.  
Address counter is not incremented during this period.  
(c) If a stop condition is issued while the device is receiving a write instruction (device address,  
R/W, address, and data), the device enters the standby state. However, the device ignores the  
stop condition while sending an acknowledge signal after it receives the D0 bit. (A write  
operation starts.)  
(A byte write is given below as an example. This is the same as a page write.)  
Write instruction  
Start Device address R/W  
ACK  
Address  
ACK  
Data  
ACK Stop  
Address counter is not incremented during this period.  
Incremented.  
A write operation starts.  
(d) No instruction is accepted while a write operation is in progress (after a stop condition for a  
write instruction is received).  
(The device does not receive a start or stop condition during this time.)  
(5) Read operation  
(a) The address counter is incremented when a read instruction is received successfully. It is  
incremented on the falling edge of the SCL pulse where the least significant bit of data is  
driven.  
D1  
D0  
Increment  
Figure 12 Increment Timing Diagram  
(b) If a start condition is issued while the device is receiving a read instruction (device address,  
R/W, address, or data), this read instruction is discarded and the next instruction is accepted. (A  
start condition is accepted even during data transfer.)  
(A current address read is given below as an example. This is the same as the other read  
modes.)  
Read instruction  
Start Device address R/W  
ACK  
Data  
NACK Stop  
Address counter is not incremented during this period. Incremented.  
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(c) If a stop condition is issued while data is read (device address, R/W, address, and data), the  
device enters the standby state.  
(A stop condition is accepted even during data transfer.)  
(A current address read is given below as an example. This is the same as the other read  
modes.)  
Read instruction  
Start Device address R/W  
ACK  
Data  
NACK Stop  
Address counter is not incremented during this period. Incremented.  
(d) If a start condition is issued while data is read, the SDA pin changes from output to input mode  
and the device is ready to accept the next instruction.  
(6) Software reset  
The device cannot be reset externally because it does not incorporate a RESET pin. Instead, the  
device is reset by software. The software resets the device to the same state using the power-on clear  
circuit. The address counter returns to the first address 00H and the SDA pin goes to the  
high-impedance state (standby state).  
The software reset is invoked when a start condition is generated followed by nine SCL clock pulses  
(dummy cycles). While a dummy cycle is inserted, the SDA line must be pulled high. This reset  
operation stops an acknowledge output and data transfer. The reset is completed by generating  
another start condition. Issue a stop condition before starting a new transfer.  
Start conditions of five times or more cannot be generated from stop condition to the next stop  
condition.  
Start condition  
Dummy cycles  
Start condition  
Stop condition  
SCL  
SDA  
1
2
8
9
Figure 13 Software reset  
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Absolute Maximum Ratings (Note) (GND = 0 V)  
Characteristics  
Supply voltage  
Symbol  
Rating  
Unit  
V
0.3 to 7.0  
V
V
V
CC  
Input voltage  
V
0.3 to V  
+ 0.3  
IN  
CC  
CC  
Output voltage  
V
0.3 to V  
+ 0.3  
OUT  
300 (25°C,SM8)  
200 (25°C,US8)  
55 to 125  
Power dissipation  
P
mW  
D
Storage temperature  
Operating temperature  
T
stg  
°C  
°C  
T
opr  
40 to 85  
Note: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even  
destruction.  
Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the  
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even  
if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum  
ratings and the operating ranges.  
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook  
(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test  
report and estimated failure rate, etc).  
Operating Ranges (Note) (GND = 0 V, T  
= −40 to 85°C)  
opr  
Characteristics  
Symbol  
Test Condition  
Min  
Max  
Unit  
Supply voltage (for reading)  
Supply voltage (for writing)  
V
V
1.8  
2.3  
3.6  
3.6  
V
V
CC  
CC  
0.7 ×  
CC  
2.3 V V  
1.8 V V  
2.3 V V  
1.8 V V  
3.6 V  
< 2.3 V  
3.6 V  
< 2.3 V  
V
V
CC  
CC  
CC  
CC  
CC  
CC  
V
High-level input voltage  
V
V
IH  
0.8 ×  
V
CC  
0
0.3 ×  
V
CC  
Low-level input voltage  
Operating frequency  
V
V
IL  
0.2 ×  
V
0
CC  
2.3 V V  
1.8 V V  
3.6 V  
< 2.3 V  
0
0
400  
100  
CC  
CC  
f
kHz  
SCL  
Note: The operating ranges must be maintained to ensure the normal operation of the device.  
Unused inputs must be tied to either VCC or GND.  
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Electrical Characteristics  
DC Characteristics (GND = 0 V, T  
= −40 to 85°C)  
opr  
1.8 V  
< 2.3 V 2.3 V  
3.6 V  
Max  
±1  
CC  
CC  
Test  
Condition  
Characteristics  
Symbol  
Unit  
Min  
Max  
±1  
Min  
Input current  
I
LI  
μA  
μA  
Output leakage current  
Low-level output voltage  
I
±1  
±1  
LO  
I
I
= 3.2 mA  
= 1.5 mA  
0.4  
OL  
V
V
OL  
0.5  
5
OL  
Quiescent supply current  
Supply current during read  
Supply current during write  
I
I
I
5
μA  
mA  
mA  
CC1  
CC2  
CC3  
f = 400 kHz  
f = 400 kHz  
0.2*  
0.3  
1.5  
*: f = 100 kHz  
AC Characteristics (GND = 0 V, T  
= −40 to 85°C)  
opr  
Test Conditions  
V
CC  
Input rise/fall time  
20 ns  
R
L
= 1 kΩ  
Input/output testing voltage  
0.5 × V  
CC  
SDA  
Output load  
100 pF + 1 kΩ pull-up resistor  
C
L
= 100 pF  
1.8 V  
< 2.3 V 2.3 V  
3.6 V  
CC  
CC  
Characteristics  
Symbol  
Unit  
Min  
Max  
100  
Min  
0
Max  
400  
SCL clock frequency  
SCL clock low time  
f
0
kHz  
μs  
μs  
ns  
μs  
μs  
μs  
μs  
ns  
ns  
μs  
μs  
μs  
ns  
SCL  
t
4.7  
4.0  
1.2  
0.8  
LOW  
SCL clock high time  
Noise suppression time  
SDA output delay  
t
HIGH  
t
100  
4.5  
50  
0.9  
I
t
0.1  
4.7  
4.0  
4.7  
0
0.1  
1.2  
0.6  
0.6  
0
AA  
Bus free time  
t
BUF  
Start condition hold time  
Start condition setup time  
Data input hold time  
Data input setup time  
SCL, SDA input rise time  
SCL, SDA input fall time  
Stop condition setup time  
SDA output hold time  
t
HD.STA  
t
SU.STA  
HD.DAT  
t
t
300  
200  
SU.DAT  
t
R
1.0  
0.3  
0.3  
0.3  
t
F
t
4.7  
100  
0.6  
50  
SU.STO  
t
DH  
12  
2007-10-19  
TC9WMB1AFK/FU,TC9WMB2AFK/FU  
EEPROM Characteristics (GND = 0 V, 2.3 V V 2.7 V, T  
= −40 to 85°C)  
opr  
CC  
Characteristics  
Symbol  
Test Condition  
Min  
Typ.  
Max  
Unit  
Write time  
t
12  
ms  
WR  
5
Rewrite endurance  
Data retention time  
N
1 × 10  
Times  
Years  
EW  
t
10  
RET  
EEPROM Characteristics (GND = 0 V, 2.7 V < V 3.6 V, T  
= −40 to 85°C)  
opr  
CC  
Characteristics  
Symbol  
Test Condition  
Min  
Typ.  
Max  
Unit  
Write time  
t
10  
ms  
WR  
5
Rewrite endurance  
Data retention time  
N
1 × 10  
Times  
Years  
EW  
t
10  
RET  
Capacitance Characteristics (Ta = 25°C)  
Characteristics  
Symbol  
Test Condition  
Typ.  
Unit  
V
(V)  
CC  
3.3  
3.3  
Input capacitance  
Output capacitance  
C
IN  
4
3
pF  
pF  
C
O
13  
2007-10-19  
TC9WMB1AFK/FU,TC9WMB2AFK/FU  
AC Characteristics Timing Charts  
t
F
t
t
t
R
HIGH  
LOW  
SCL  
t
SU.STO  
t
t
t
t
SU.DAT  
SU.STA  
HD.STA  
HD.DAT  
SDA  
(Input)  
t
t
t
BUF  
AA  
DH  
SDA  
(Output)  
Figure 14 Bus Timing  
SCL  
SDA  
(Input)  
D
O
t
WR  
Write data Acknowledge  
input output  
Stop  
condition  
Start  
condition  
Figure 15 Write Cycle Timing  
14  
2007-10-19  
TC9WMB1AFK/FU,TC9WMB2AFK/FU  
Input/Output Circuits of Pins  
Pin  
Type  
Input/Output Circuit  
Remarks  
WP  
A0, A1, A2  
SCL  
Input  
SDA  
Input/output  
Open-drain output  
15  
2007-10-19  
TC9WMB1AFK/FU,TC9WMB2AFK/FU  
Package Dimensions  
Weight: 0.01 g (typ.)  
16  
2007-10-19  
TC9WMB1AFK/FU,TC9WMB2AFK/FU  
Package Dimensions  
Weight: 0.02 g (typ.)  
17  
2007-10-19  
TC9WMB1AFK/FU,TC9WMB2AFK/FU  
RESTRICTIONS ON PRODUCT USE  
Toshiba Corporation, and its subsidiaries and affiliates (collectively “TOSHIBA”), reserve the right to make changes to the information  
in this document, and related hardware, software and systems (collectively “Product”) without notice.  
This document and any information herein may not be reproduced without prior written permission from TOSHIBA. Even with  
TOSHIBA’s written permission, reproduction is permissible only if reproduction is without alteration/omission.  
Though TOSHIBA works continually to improve Product’s quality and reliability, Product can malfunction or fail. Customers are  
responsible for complying with safety standards and for providing adequate designs and safeguards for their hardware, software and  
systems which minimize risk and avoid situations in which a malfunction or failure of Product could cause loss of human life, bodily  
injury or damage to property, including data loss or corruption. Before creating and producing designs and using, customers must  
also refer to and comply with (a) the latest versions of all relevant TOSHIBA information, including without limitation, this document,  
the specifications, the data sheets and application notes for Product and the precautions and conditions set forth in the “TOSHIBA  
Semiconductor Reliability Handbook” and (b) the instructions for the application that Product will be used with or for. Customers are  
solely responsible for all aspects of their own product design or applications, including but not limited to (a) determining the  
appropriateness of the use of this Product in such design or applications; (b) evaluating and determining the applicability of any  
information contained in this document, or in charts, diagrams, programs, algorithms, sample application circuits, or any other  
referenced documents; and (c) validating all operating parameters for such designs and applications. TOSHIBA ASSUMES NO  
LIABILITY FOR CUSTOMERS’ PRODUCT DESIGN OR APPLICATIONS.  
Product is intended for use in general electronics applications (e.g., computers, personal equipment, office equipment, measuring  
equipment, industrial robots and home electronics appliances) or for specific applications as expressly stated in this document.  
Product is neither intended nor warranted for use in equipment or systems that require extraordinarily high levels of quality and/or  
reliability and/or a malfunction or failure of which may cause loss of human life, bodily injury, serious property damage or serious  
public impact (“Unintended Use”). Unintended Use includes, without limitation, equipment used in nuclear facilities, equipment used  
in the aerospace industry, medical equipment, equipment used for automobiles, trains, ships and other transportation, traffic signaling  
equipment, equipment used to control combustions or explosions, safety devices, elevators and escalators, devices related to electric  
power, and equipment used in finance-related fields. Do not use Product for Unintended Use unless specifically permitted in this  
document.  
Do not disassemble, analyze, reverse-engineer, alter, modify, translate or copy Product, whether in whole or in part.  
Product shall not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under any  
applicable laws or regulations.  
The information contained herein is presented only as guidance for Product use. No responsibility is assumed by TOSHIBA for any  
infringement of patents or any other intellectual property rights of third parties that may result from the use of Product. No license to  
any intellectual property right is granted by this document, whether express or implied, by estoppel or otherwise.  
ABSENT A WRITTEN SIGNED AGREEMENT, EXCEPT AS PROVIDED IN THE RELEVANT TERMS AND CONDITIONS OF SALE  
FOR PRODUCT, AND TO THE MAXIMUM EXTENT ALLOWABLE BY LAW, TOSHIBA (1) ASSUMES NO LIABILITY  
WHATSOEVER, INCLUDING WITHOUT LIMITATION, INDIRECT, CONSEQUENTIAL, SPECIAL, OR INCIDENTAL DAMAGES OR  
LOSS, INCLUDING WITHOUT LIMITATION, LOSS OF PROFITS, LOSS OF OPPORTUNITIES, BUSINESS INTERRUPTION AND  
LOSS OF DATA, AND (2) DISCLAIMS ANY AND ALL EXPRESS OR IMPLIED WARRANTIES AND CONDITIONS RELATED TO  
SALE, USE OF PRODUCT, OR INFORMATION, INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY, FITNESS  
FOR A PARTICULAR PURPOSE, ACCURACY OF INFORMATION, OR NONINFRINGEMENT.  
Do not use or otherwise make available Product or related software or technology for any military purposes, including without  
limitation, for the design, development, use, stockpiling or manufacturing of nuclear, chemical, or biological weapons or missile  
technology products (mass destruction weapons). Product and related software and technology may be controlled under the  
Japanese Foreign Exchange and Foreign Trade Law and the U.S. Export Administration Regulations. Export and re-export of Product  
or related software or technology are strictly prohibited except in compliance with all applicable export laws and regulations.  
Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product.  
Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances,  
including without limitation, the EU RoHS Directive. TOSHIBA assumes no liability for damages or losses occurring as a result of  
noncompliance with applicable laws and regulations.  
18  
2007-10-19  

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