W91F820N Datasheet, PDF (11/20 Pages) Winbond – 13-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS

Preliminary W91F820N SERIES
TIMING WAVEFORMS
HKS
KEY IN
DP
T/P MUTE
H/ P MUTE
KT
DTMF
OSC.
4
TKID
M
B
T PDP
2
T_IDP
MB
T_IDP
2
TKID
TPDP
T_IDP
LOW
OSC.
OSC.
Figure 1(a) Pulse Mode Tming Diagram (Normal dialing without lock function)
HKS
KEY IN
DP
T/P MUTE
(long mute)
H/P MUTE
KT
DTMF
OSC.
<300 mS
4
T_FKD
2
MB
T_IDP
LOW
OSC.
2
T KID
TPDP
TIDP
OSC.
Figure 1(b) Pulse Mode Timing Diagram (Normal dialing with lock function)
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Publication Release Date: January 1999
Revision A1