s-24c04bphal Seiko Instruments Inc., s-24c04bphal Datasheet - Page 12

• Manufacturer Part Number: s-24c04bphal
• Description: 2-wire Cmos Serial E2prom
• Manufacturer: Seiko Instruments Inc.

6. Write operation
12
6.1 Byte write
2-WIRE CMOS SERIAL E
S-24C04BPHAL
When the E
the start condition signal, it outputs the acknowledge signal.
Next, when the E
After the E
condition signal. Next, rewriting the specified memory address of the E
While the E
output.
SDA line
2
2
PROM receives 8-bit write data and outputs the acknowledge signal, it receives the stop
2
PROM receives a 7-bit device address and the 1-bit read/write instruction code “0”, following
PROM is being rewritten, all operations are prohibited and the acknowledge signal is not
2
PROM receives an 8-bit word address, it outputs the acknowledge signal.
S
T
A
R
T
M
S
B
1
0
2
PROM
1
ADDRESS
DEVICE
0
X X
P0
L
S
B
Figure 10 Byte Write
Seiko Instruments Inc.
R
W
0
W
/
R
T
E
I
A
C
K
W 7 W 6 W 5 W 4 W 3 W 2 W 1 W 0
WORD ADDRESS
A
C
K
D7 D6 D5 D4 D3 D2 D1 D0
(ADDRESS INCREMENT)
2
PROM starts.
DATA
ADR INC
A
C
K
S
T
O
P
Rev.3.0
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