S-34C02A Datasheet, PDF (12/34 Pages) Seiko Instruments Inc – 2-WIRE CMOS SERIAL E2PROM FOR DIMM SERIAL PRESENCE DETECT

2-WIRE CMOS SERIAL E²PROM FOR DIMM SERIAL PRESENCE DETECT
S-34C02A
Rev.1.2_00
6. Write Operation
6. 1 Byte Write
When the S-34C02A receives the 7-bit device address and the Read/Write instruction cord “0” after receiving a start
condition, it generates an acknowledgment signal.
Next, it receives the 8-bit word address, and generates an acknowledgment signal. After that, it receives 8-bit Write
data and generates an acknowledgment signal, it receives a stop condition so that the Write operation to the
specified memory address starts.
During the Write operation to the S-34C02A, all operations are inhibited to be performed and S-34C02A does not
send back an acknowledgment signal.
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 A1 A0} 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 10 Byte Write
ADR INC
(ADDRESS INCREMENT)
12
Seiko Instruments Inc.