ASAHI KASEI

[AK9844]

DAD02E-00

1999/05

- 1 -

AK9844

4Kbit EEPROM with 4ch 8bit D/A Converter

GENERAL DESCRIPTION

The AK9844 includes 4 channel, 8-bit D/A converters with on-chip output buffer amps and it is capable to

store the input digital data of each D/A converter by on-chip non-volatile CMOS EEPROM. The AK9844 is

optimally designed for various circuit adjustments for consumer and industrial equipments and it is ideally

suited for replacing mechanical trimmers.

FEATURES

† EEPROM SECTION

Õ 8-bit organization (Dedicated for DAC data)

Õ 16-bit organization (General purpose memory)

† D/A SECTION

: 8-bits

:

‘ 1.0 LSB

:

‘ 2.0 LSB

: GND

∼ VCC

† AUTO READ Function

† Power down mode

Block Diagram