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W91820LN データシートの表示(PDF) - Winbond
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W91820LN
13-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
Winbond
W91820LN Datasheet PDF : 22 Pages
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W91820N SERIES
Timing Waveforms, continued
HKS
KEY IN
DTMF
T/P MUTE
H/P MUTE
KT
DTMF
OSC.
3
2
T
KID
T
TD
6
T
KRD
T
ITP
T
KID
5
T
KRD
T
ITP
T
KRD
T
ITP
LOW
HIGH
OSC.
Figure 2(a). Tone Mode Timing Diagram
OSC.
HKS
KEY IN
DTMF
T/P MUTE
H/P MUTE
300 mS
3
2
6
T
KRD
T
TD
T
ITP
T
FKD
LOW
T
KID
5
T
KRD
T
ITP
T
KRD
T
ITP
DP
OSC.
HIGH
OSC.
OSC.
Figure 2(b). Tone Mode Timing Diagram (Normal dialing with lock function)
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