W91621 Ver la hoja de datos (PDF) - Winbond

Número de pieza

componentes Descripción

Fabricante

W91621

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

Winbond 

W91620 SERIES

Timing Waveforms, continued

HKS

KEY IN

DP/C5

4

2

TKID

BM

TPDP

PT

8

MB

TIDP

TIDP

T/P MUTE

TITP

DTMF

P MUTE

OSC.

OSCILLATION

Figure 4. P→T Operation Timing Diagram in Normal Dialing

HKS

LOW

KEY IN

F

F

3

TKID

DP/C5

TFB

TFP

TFP

TIDP

T/P MUTE

P MUTE

DTMF

OSC.

LOW

OSCILLATION

Figure 5. Flash Operation Timing Diagram

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