S-24C02DI-J8T1U5 Datasheet, PDF (26/47 Pages) Seiko Instruments Inc – Write protect function during low power supply voltage

2-WIRE SERIAL E²PROM
S-24C02D/04D/08D16D
Rev.3.0_01_U
9. Operation when input stop condition during input write data
This IC does the write operation only when it receives data of 1 byte or more and receives a stop condition
immediately after acknowledge output.
Refer to Figure 26 regarding details.
Write valid
by stop condition
Write valid
by stop condition
Write valid
by stop condition
S
W
T
R
A
I
R DEVICE
T
T ADDRESS E
SDA
LINE
1 0 1 0 A2 A1 A0 0
Write invalid
by stop condition
WORD ADDRESS (n)
DATA (n)
W7W6W5W4W3W2 W1W0 D7 D6 D5 D4 D3 D2 D1 D0
Write invalid
by stop condition
Write invalid
by stop condition
DATA (n + 1)
S
T
O
DATA (n + x) P
D7
D0 D7
D0
M
LRA
A
A
A
A
S
S/C
C
C
C
C
B
BWK
K
K
K
K
Remark A0 is P0 in the S-24C04D/08D/16D.
A1 is P1 in the S-24C08D/16D.
A2 is P2 in the S-24C16D.
Set A0, A1, A2 to "0" in the product with SOT-23-5 package.
Figure 26 Write Operation by Inputting Stop Condition during Write
10. Command cancel by start condition
By a start condition, users are able to cancel command which is being input. However, adjust the phase while this IC
is outputting "L" because users are not able to input a start condition. When users cancel the command, there may be
a case that the address will not be identified. Use random read for the read operation, not current address read.
 Precautions
• Do not operate these ICs in excess of the absolute maximum ratings. Attention should be paid to the power supply
voltage, especially. The surge voltage which exceeds the absolute maximum ratings can cause latch-up and
malfunction. Perform operations after confirming the detailed operation condition in the data sheet.
• Operations with moisture on this IC's pins may occur malfunction by short-circuit between pins. Especially, in
occasions like picking this IC up from low temperature tank during the evaluation. Be sure that not remain frost on this
IC's pin to prevent malfunction by short-circuit.
Also attention should be paid in using on environment, which is easy to dew for the same reason.
• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic
protection circuit.
• SII Semiconductor Corporation claims no responsibility for any and all disputes arising out of or in connection with any
infringement of the products including this IC upon patents owned by a third party.
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