AK9844A Datasheet, PDF (10/17 Pages) Asahi Kasei Microsystems – 4Kbit EEPROM with 4ch 8bit D/A Converter

ASAHI KASEI
[AK9844A]
„ PDEN / PDDS
The AK9844A has the power-down mode and the normal mode. When the PDEN instruction is
executed while the PD pin is high level, the AK9844A becomes the power-down mode. The
AK9844A is in the power-down mode until PDDS instruction is executed. After the PDDS
instruction is executed, the AK9844A changed to normal mode from power-down mode.
In case that the PD pin is low level, the PDEN/PDDS instructions are invalid and are not executed.
CS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
SK
DI
1 0 1 0 1 1 0 0XXXXXXXX
DO
Hi-Z
Status output (READY),
if previous instruction is WRITE.
PDEN instruction
CS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
SK
DI
1 0 1 0 0 1 1 0XXXXXXXX
DO
Hi-Z
Status output (READY),
if previous instruction is WRITE.
PDDS instruction
DAD05E-00
- 10 -
2005/03