AK9813B Datasheet, PDF (10/24 Pages) Asahi Kasei Microsystems – 12ch 8bit D/A Converter with EEPROM

ASAHI KASEI
7. STATUS mode: The DO pin outputs the Ready/Busy status from the DO pin.
CLK
CS/LD
DO
AO1 - 12
Ready/Busy
No change
* : When the Ready/Busy is "L", it indicates the busy status. When AK9813B executes the CALL,
ALL CALL, READ, AUTOREAD or ECL operation, the DO pin outputs "L".
[AK9813B]
8. ECL function: For "H" pulse to the ECL pin, the data in the selected address in the internal
EEPROM is automatically loaded. Then each D/A converter output is settled to
pre-determined value.
EA0, EA1
EEPROM ADDRESS
ECL
AO1 - 12
INVALID
*Analog output is set from AO1 to AO12 in order.
9. Transfer mode for the cascade connection
In case that AK9813B devices are connected in cascade, the AK9813B under programming cycle
can transfer the data to the other AK9813B. The some AK9813B devices can be operated by
the common CS signal at the same time.
Please note that the input data into to the AK9813B under programming cycle should be all "0"
when the CS pin is changed from "L" to "H". If data except all "0" is input into the AK9813B
under programming cycle, accidental data disturbance may occur.
DI
CL A0 A1 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 WR CL A0 A1
CLK
CS/LD
Data to the next DAC
DO
AO1 - 12
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 WR CL A0 A1
Output data to the next DAC
No operation
DAD04E-01
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2002/11