S-24C08C Datasheet, PDF (12/33 Pages) Seiko Instruments Inc – Write protect function during the low power supply voltage

2-WIRE SERIAL E²PROM
S-24C08C (WLP PRODUCT)
Rev.1.0_00_H
6. Write
6. 1 Byte write
When the master sends a 7-bit device address and a 1-bit read / write instruction code set to “0”, following a start
condition, the S-24C08C acknowledges it. And the S-24C08C receives 8-bit word address and responds with an
acknowledge. After the S-24C08C receives 8-bit write data and responds with an acknowledge, it receives a stop
condition and that initiates the write cycle at the addressed memory.
During the write cycle all operations are forbidden and no acknowledge is generated.
S
W
T
R
A
I
R
T
DEVICE
ADDRESS
T
E
WORD ADDRESS
S
T
O
DATA
P
SDA LINE
1 0 1 0 _{A2 P1 P0} 0 _{W7 W6 W5 W4 W3 W2 W1 W0 D7 D6 D5 D4 D3 D2 D1 D0}
M
LR A
S
S/ C
B
BW K
A_A
C_C
K_K
A
C
K
Figure 11 Byte Write
12