W91620 Datasheet, PDF (13/16 Pages) Winbond – 10-MEMORY TONE/PULSE DIALER WITH TWO-STAGE REDIAL FUNCTION

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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