M66009FP 查看數據表（PDF） - MITSUBISHI ELECTRIC

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M66009FP

8-BIT I/O EXPANDER WITH 5-BIT ADDRESS

MITSUBISHI ELECTRIC  

MITSUBISHI 〈DIGITAL ASSP〉

M66009FP

8-BIT I/O EXPANDER WITH 5-BIT ADDRESS

ACKNOWLEDGE BIT ACK0

Acknowledge bit ACK0 is output only when address in serial

input data is the same as that set by pins A0 thru A4. It is out-

put from pin DO as ACK0 =“0” (“L”) synchronously with CLK

8T fall.

INITIAL STATUS AFTER RESET

If “L” is input to RESET, M66009 is put in the conditions speci-

fied below:

I/O pins D0 thru D7

DO output

Input state (“L” output state)

(Output p-channel transistor off)

“H” output state

(Output n-channel transistor off)

INPUT AND OUTPUT EQUIVALENT CIRCUITS

Ru( V 1)

Ru( V 2)

DI,

CLK,

DO

A0~A4

EN,

RESET

( V 1) Pull-up resistor

Ru is built in pin DI.

Input Configuration 1

( V 2) Pull-up resistor Ru is built in pin

CLK and EN.

Input Configuration 2 Output Configuration

D0~D7

RD

RD: Pull-down resistor

Input/Output Configuration

4

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