W91621 데이터 시트보기 (PDF) - Winbond

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W91621

10-MEMORY TONE/PULSE DIALER WITH TWO-STAGE REDIAL FUNCTION

Winbond 

W91620 SERIES

TIMING WAVEFORMS

HKS

KEY IN

DP/C5

T/P MUTE

P MUTE

DTMF

OSC.

3

2

TKID

TIDP

TPDP

TPDP

TIDP

TB

TM

R

TKID

TIDP

TPDP

TPDP

TIDP

OSCILLATION

NORMAL DIALING

LOW

OSCILLATION

AUTO DIALING

Figure 1. Pulse Mode Timing Diagram

HKS

KEY IN

DTMF

T/P MUTE

DP/C5

P MUTE

OSC.

TKID

TPTM

TITP

TTD

TKRD

TKRD

TKID

TPTM

TITP

TKRD

TITP

HIGH

OSCILLATION

LOW

OSCILLATION

Figure 2(a). Tone Mode Normal Dialing Timing Diagram

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