AK9844 Datasheet, PDF (2/17 Pages) Asahi Kasei Microsystems – 4Kbit EEPROM with 4ch 8bit D/A Converter

ASAHI KASEI
„ Ordering Guide
AK9844F
„ Pin Layout
-20 to 70°C
[AK9844]
14-pin SOP (1.27mm pitch)
„ Pin Description
No. Pin Name
1 GND
2 PROTECT
3 PD
4 VCC
5 VREF1
6 AO0
7 AO1
8 AO2
AO3
10 VREF2
11 CS
12 SK
13 DO
14 DI
I/O
Function
- Ground Pin, 0V
I Protect Pin
"L" : Programming to the D/A Section of EEPROM is
disabled.
"H" : Normal operation
I Power-down Pin
"L" : Power down mode
"H" : Normal mode
- Power Supply
I Voltage Reference Input1
The analog output ranges of the AO0 and the AO1 are set
by the VREF1 pin.
O Analog Output Pins (8-bit D/A outputs)
I Voltage Reference Input2
The analog output ranges of the AO2 and the AO3 are set
by the VREF2 pin.
I Chip Select Pin (Schmitt-trigger input)
I Serial Clock Pin (Schmitt-trigger input)
O Serial Data Input Pin
I Serial Data Output Pin
DAD02E-00
-2-
1999/05