LAG640D Просмотр технического описания (PDF) - Mitsumi

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LAG640D

IC for Multifunction Telephones

Mitsumi 

MITSUMI

IC for Multifunction Telephones LAG640

Watchdog Timer Waveform Diagrams

TIMER CLEAR

(22PIN)

(21PIN)

Interrupt output

(20PIN)

Tt

Tpw

Note: Pulses to clear the timer must have

a width of 5µs or more.

Transmit/receive Waveform

1. When pulling pin 25 up to VDD (+5V)

SG (24PIN)

SD (DTC) 23PIN

L3 (27PIN)

L4 (26PIN)

2. When shorting pin 25 to GND

SD (DTC) 23PIN

SG (24PIN)

L3 (27PIN)

L4 (26PIN)

SG

L3

L4

Reception data out

Td1

Td2

Td3

Td4

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