S-24C02BPPHL Datasheet, PDF (13/39 Pages) Seiko Instruments Inc – 2-WIRE CMOS SERIAL E2PROM

Rev.2.2_00
2-WIRE CMOS SERIAL E²PROM
S-24C02BPPHL
6.2 Page write
Up to 8 bytes per page can be written in the S-24C02BPPHL.
Basic data transfer procedures are the same as those in “Byte write”. The S-24C02BPPHL performs page
write by successively receiving 8-bit write data sized pages.
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. 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 8-bit write data corresponding to the next word address, and outputs the
acknowledge signal. The E²PROM repeats reception of 8-bit write data and output of the acknowledge
signal in succession and can receive write data corresponding to the maximum page size. When the stop
condition signal is received, E²PROM corresponding to the size of the page on which write data starting
from the specified memory address is received starts to be rewritten.
SDA
line
S
W
T
R
A
I
R
DEVICE _T
T
ADDRESS _{E WORD ADDRESS (n)}
DATA (n)
DATA (n + 1)
1 0 1 0X X X 0
W7 W6 W5 W4 W3 W2 W1 W0
D7 D6 D5 D4 D3 D2 D1 D0
D7
M
LRA
A
A
S
S/C
C
C
B
B WK
K
K
D0 D7
A
C
K
S
T
O
DATA (n + x) _P
D0
A
C
K
ADR INC
Figure 11 Page Write
ADR INC
ADR INC
The lower 3 bits of the word address are automatically incremented each time when the E²PROM receives
8-bit write data. Even when the write data exceeds 8 bytes, the higher 5 bits of the word address remain
unchanged, and the lower 3 bits are rolled over and overwritten.
Seiko Instruments Inc.
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