W91443N View Datasheet(PDF) - Winbond

Part Name

Description

View to exact match

W91443N

10-MEMORY TONE/PULSE DIALER WITH SAVE FUNCTION

Winbond 

Timing Waveforms, continued

W91440N SERIES

HKS

KEY IN

DTMF

T/P MUTE

DP

OSC.

3

TKID

T TD

4

2

T ITP

T ITP

OSCILLATION

High

TKRD

5

TITP

OSCILLATION

Figure 2(a) Tone Mode Normal Dialing Timing Diagram

HKS

KEY IN

DTMF

T/P MUTE

DP

OSC.

R/P

T KID

TKRD

T TD

TITP

T<T OHD

T ITP

High

OSCILLATION

Figure 2(b) Tone Mode Auto Dialing Timing Diagram

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Publication Release Date: May 1997

Revision A3

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