W91820ALN Ver la hoja de datos (PDF) - Winbond
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W91820ALN Datasheet PDF : 22 Pages
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W91820N SERIES
Timing Waveforms, continued
HKS
KEY IN
DP
T/P MUTE
H/P MUTE
T T<TOHD
4
TKID
M
B
TPDP
TIDP
TFKD
DTMF
OSC.
LOW
OSC.
CHIP ENABLE
ON HOOK
Figure 4. Lock Function Timing Diagram
TOFD
TOHD
OSC.
HKS
KEY IN
DP
T/P MUTE
H/P MUTE
KT
DTMF
OSC.
OKR
TRB
TKID
LOW
M
TRP
B
TIDP
TIDP
TPDP
TPDP
LOW
OSC
.
Figure 5. Pulse Mode One-key Redialing Timing Diagram
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