s-24c04bphal Seiko Instruments Inc., s-24c04bphal Datasheet - Page 13

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

6.2 Page write
Rev.3.0
Up to 16 bytes per page can be written in the S-24C04BPHAL.
Basic data transfer procedures are the same as those in “Byte write”. The S-24C04BPHAL performs page
write by successively receiving 8-bit write data sized pages.
When the E
the start condition signal, it outputs the acknowledge signal. When the E
address, it outputs the acknowledge signal. After the E
acknowledge signal, it receives 8-bit write data corresponding to the next word address, and outputs the
acknowledge signal. The E
signal in succession and can receive write data corresponding to the maximum page size. When the stop
condition signal is received, E
from the specified memory address is received starts to be rewritten.
SDA
line
The lower 4 bits of the word address are automatically incremented each time when the E
8-bit write data. Even when the write data exceeds 16 bytes, the higher 4 bits of the word address and
page address P0 remain unchanged, and the lower 4 bits are rolled over and overwritten
S
T
A
R
T
_00
M
S
B
1
0
2
ADDRESS
1
PROM receives a 7-bit device address and the 1-bit read/write instruction code “0” following
DEVICE
0
X
X
P0
L
S
B
W
R
T
E
R
W
I
0
/
A
C
K
WORD ADDRESS (n)
W7 W6 W5 W4 W3 W2 W1 W0
2
PROM repeats reception of 8-bit write data and output of the acknowledge
2
PROM corresponding to the size of the page on which write data starting
Figure 11 Page Write
Seiko Instruments Inc.
A
C
K
D7 D6 D5 D4 D3 D2 D1 D0
DATA (n)
2
PROM receives 8-bit write data and outputs the
ADR INC
A
C
K
D7
2-WIRE CMOS SERIAL E
DATA (n + 1)
2
PROM receives an 8-bit word
ADR INC
D0
A
C
K
D7
S-24C04BPHAL
.
DATA (n + x)
2
PROM receives
2
ADR INC
PROM
D0
A
C
K
S
T
O
P
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