W91473 Datasheet, PDF (19/20 Pages) Winbond – 14-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND LOCK FUNCTION

Timing waveforms, continued
HKS
KEY IN
DP
T/P MUTE
HPM MUTE
KT
DTMF
OSC.
LOW
F
TFB
W91473 SERIES
LOW
OSC.
TFKP
Figure 7. Flash Operation Timing Diagram
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Publication Release Date: February 1995
Revision A3