W91550 WINBOND [Winbond], W91550 Datasheet - Page 30

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

Timing Waveforms, continued
HPM MUTE
T/P MUTE
KEY IN
HPM MUTE
DTMF
T/P MUTE
OSC.
HKS
DP
KEY IN
DTMF
OSC.
HKS
DP
Figure 12. Flash Timing Diagram for the F3 Key of W91550DN-1
4
T
< 300 mS
KID
F3
M
T
Figure 11. First Key-in Delay Timing Diagram
KID
B
T
FKD
T
2
PDP
T
FP
F3
T
FB
2
T
IDP
- 30 -
T
OSCILLATION
FP
M
OSCILLATION
B
Low
Low
M
3
B
T
IDP
T
IDP
W91550DN SERIES
M
B
T
IDP