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PT8146 V1.1

- 21 -

February, 2006

8-Bit 12-Ch I/O DAC

PT8146

I/O EXPANDER OPERATION NOISE 2 VN3

Noise to analog output during serial → parallel switching commands for digital-only pins, or ESR

setting commands for switching between digital output and analog output.

CLK

SI

Parallel output

Digital input

Analog output

D

11

to

D

4

V

N3

V

N3

AO

1

to

AO

12

Parallel -> serial switching commands, ESR setting commands

D

D

CS