AK6480C Datasheet, PDF (7/15 Pages) Asahi Kasei Microsystems – 8Kbit Serial CMOS EEPROM

ASAHI KASEI
[AK6480C/81]
instruction, the RESET pin should be low level. If the RESET pin is set to high level during the
automatic write time-out period, the AK6480C/81C stops execution of internal programming and
the device returns to ready status. In this case the word data of the specified address will be
incomplete. When inputting the new instruction after RESET, the CS pin should be set to high
level. When the RESET pin is kept at high level, the Page Write is not executed. This becomes
write protection function.
The CS pin need not be high level during automatic write time-out period ( Busy status).
RESET
CS
SK
DI
DO
RDY/
BUSY
1 2 3 4 5 6 7 8 9 10
1 0 1 1 0 1 0 A8 A7 A6
Hi-Z
15 16 17 18
30 31 32
Data(n)
A1 A0 D15 D14
D2 D1 D0
RESET
CS
SK
33 34
46 47 48
Data(n+1)
DI
D15 D14
D2 D1 D0 D15
DO
Hi-Z
RDY/
BUSY
Data(n+7)
D0 D15 D14
D2 D1 D0
tE/W
PAGE WRITE (AK6480C)
RESET
CS
SK
DI
DO
RDY/
BUSY
1 2 3 4 5 6 7 8 9 10
1 0 1 1 0 1 0 A0 A1 A2
Hi-Z
15 16 17 18
30 31 32
データ(n)
A7 A8 D0 D1
D13 D14 D15
RESET
CS
SK
33 34
46 47 48
データ(n+1)
DI
D0 D1
D13 D14 D15 D0
DO
Hi-Z
RDY/
BUSY
データ(n+7)
D15 D0 D1
D13 D14 D15
tE/W
PAGE WRITE (AK6481C)
DAS04E-00
-7-
2005/03