AK9844A Datasheet, PDF (2/17 Pages) Asahi Kasei Microsystems – 4Kbit EEPROM with 4ch 8bit D/A Converter

ASAHI KASEI
[AK9844A]
„ Ordering Guide
AK9844AV
-40°C to +85°C
„ Pin Layout
GND
PROTECT
PD
VCC
NC
VREF1
AO0
AO1
AK9844AV
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
16pin TSSOP
16-pin TSSOP
DI
DO
SK
CS
NC
VREF2
AO3
AO2
„ Pin Description
No. Pin Name I/O
1 GND
- Ground Pin, 0V
Function
2 PROTECT I Protect Pin
"L" : Programming to the D/A Section of EEPROM is
disabled.
"H" : Normal operation
3 PD
4 VCC
6 VREF1
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.
7 AO0
8 AO1
9 AO2
10 AO3
O Analog Output Pins (8-bit D/A outputs)
11 VREF2
13 CS
14 SK
15 DO
16 DI
5, 12 NC
I Voltage Reference Input1
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 Output Pin
I Serial Data Input Pin
- Not Connected
DAD05E-00
-2-
2005/03