MB88141PFV Просмотр технического описания (PDF) - Fujitsu

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MB88141PFV

D/A Converter for Digital Tuning (With Built-in OP Amp and I/O Expander)

Fujitsu 

MB88141

(4) Channel Selection (8 bits)

C7 C6 C5 C4 C3 C2 C1 C0

××××0000

××××0001

Channel select

I/O expander operation

AO1 selected

××××0100

××××0101

AO4 selected

Don’t care (AO5 selected)

××××1000

××××1001

Don’t care (AO8 selected)

Don’t care

××××1110

Don’t care

××××1111

I/O expander continuous operation

( ): When using D/A converter 8 channel, I/O expander 4 bit operation.

×: Don’t care

(5) D/A Data (8 bits)

Same as “1. (5) D/A Data (8 bits).”

(6) I/O Expander Continuous Operation

I2C bus input → parallel data output

S Slave address 0 A XXXX1111 A Digital data A • • •

Digital data A P

Note: In continuous operation, operation continues until start and stop conditions are acknowledged.

Parallel data input → I 2C bus output

S Slave address 1 A Digital data A Digital data A

•••

Digital data A P

: Sent from master device

: Sent from MB88141 (slave device)

S: “Start” condition P: “Stop” condition A: “Acknowledge” output

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