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W91550DN 데이터 시트보기 (PDF) - Winbond
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W91550DN
13-MEMORY TONE/PULSE DIALER WITH LCD AND LOCK FUNCTIONS
Winbond
W91550DN Datasheet PDF : 32 Pages
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W91550DN SERIES
Timing Waveforms, continued
HKS
KEY IN
DP
T/P MUTE
HPM MUTE
KMUTE
OSC.
4
2
T
KID
MB
T
PDP
MUTE
2
T
KID
T
IDP
M B
T
IDP
M
B
MUTE
T
KID
T
IDP
OSCILLATION
Figure 9. Mute Timing Diagram
HKS
HFI
HOLD KEY
HFO
T/P MUTE
HPM MUTE
CHIP ENBLE
OFF HOOK
ON HOOK
High
Low
Figure 10(a). Hold Timing Diagram
Note: The HOLD KEY cannot be enabled when the chip is disabled.
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