W91550 WINBOND [Winbond], W91550 Datasheet - Page 21

• Manufacturer Part Number: W91550
• Description: 13-MEMORY TONE/PULSE DIALER WITH LCD AND LOCK FUNCTION
• Manufacturer: WINBOND [Winbond]

TIMING WAVEFORMS
HPM MUTE
HPM MUTE
T/P MUTE
T/P MUTE
KEY IN
KEY IN
DTMF
DTMF
OSC.
OSC.
Figure 1(a). Normal Dialing Timing Diagram (Pulse Mode without Lock Function)
HKS
HKS
DP
Figure 1(b). Normal Dialing Timing Diagram (Pulse Mode with Lock Function)
DP
T
< 600mS
< 600mS
OFD
M
3
3
< 300mS
< 300mS
B
T
KID
T
PDP
T
FKD
2
2
T
T
KID
IDP
T
MD
M
B
M
B
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OSCILLATION
OSCILLATION
T
T
IDP
Low
Low
MD
T
IDP
Publication Release Date: November 1997
W91550DN SERIES
3
3
T
T
KID
KID
T
T
KRD
KRD
T
T
IDP
IDP
Revision A3