W91550 WINBOND [Winbond], W91550 Datasheet - Page 27

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

W91550DN SERIES
Timing Waveforms, continued
HKS
2
8
KEY IN
4
*/T
T
KID
DP
M
B
M
B
T
T
IDP
IDP
T
T
P
PDP
T/P MUTE
HPM MUTE
T
ITP
DTMF
OSC.
OSCILLATION
Figure 7. Pulse-to-tone Timing Diagram
Low
HKS
F
2
3
F
F
KEY IN
T
T
KID
KID
T
FB
DP
T
B
M
IDP
T
FP
T/P MUTE
HPM MUTE
DTMF
Low
OSCILLATION
OSC.
Figure 8. First Priority Flash Timing Diagram
Publication Release Date: November 1997
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Revision A3