S-24C04BPHAL-TF データシートの表示（PDF） - Seiko Instruments Inc

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S-24C04BPHAL-TF

2-WIRE CMOS SERIAL E2PROM

Seiko Instruments Inc 

2-WIRE CMOS SERIAL E2PROM

S-24C04BPHAL

Rev.2.1_00

6. Write operation

6.1 Byte write

When the E2PROM receives a 7-bit device address and the 1-bit read/write instruction code “0”, following

the start condition signal, it outputs the acknowledge signal.

Next, when the E2PROM receives an 8-bit word address, it outputs the acknowledge signal.

After the E2PROM receives 8-bit write data and outputs the acknowledge signal, it receives the stop

condition signal. Next, rewriting the specified memory address of the E2PROM starts.

While the E2PROM is being rewritten, all operations are prohibited and the acknowledge signal is not

output.

S

W

T

R

A

I

R

DEVICE

T

T

ADDRESS E

WORD ADDRESS

S

T

O

DATA

P

SDA line

1 0 1 0 X X P0 0

W 7 W 6 W 5 W 4 W 3 W 2 W 1 W 0 D7 D6 D5 D4 D3 D2 D1 D0

M

L RA

A

A

S

S /C

C

C

B

B WK

K

K

Figure 10 Byte Write

ADR INC

(ADDRESS INCREMENT)

12

Seiko Instruments Inc.

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