W91473B 查看數據表（PDF） - Winbond

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W91473B

14-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND LOCK FUNCTIONS

Winbond 

W91473 SERIES

HKS

KEY IN

4

2

TKID

B

M

DP

TIDP

TIDP

TPDP

T/P MUTE

2

TKID

TIDP

TPDP

HPM MUTE

KT

DTMF

TFKP

OSC.

LOW

OSCILLATION

Figure 1. Pulse Mode Diagram (Normal Dialing)

OSCILLATION

HKS

KEY IN

DTMF

T/P MUTE

TKID

TITP

TTD

TKRD

TITP

TKID

TKRD

TITP

HPM MUTE

LOW

KT

DP TFKP

OSC.

Timing waveforms, continued

LOW

HIGH

OSCILLATION

Figure 2. Tone Mode Diagram (Normal Dialing)

OSCILLATION

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Publication Release Date: February 1995

Revision A3

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