W91440N Datasheet, PDF (9/14 Pages) Winbond – 10-MEMORY TONE/PULSE DIALER WITH SAVE FUNCTION

W91440N SERIES
AC Characteristics, continued
PARAMETER
SYMBOL
CONDITIONS
MIN. TYP. MAX. UNIT
Flash Pause Time
TFP F1, F2, F3, F4
-
1.0
-
S
Pause Time
TP
-
3.6
-
S
On-hook Debounce
Time
TOHD
-
150
-
S
Notes:
1. Crystal parameters suggested for proper operation are Rs < 100 ohms, Lm = 96 mH, Cm = 0.02 pF, Cn = 5 pF, Cl = 18 pF,
FOSC. = 3.579545 MHz ±0.02%.
2. Crystal oscillator accuracy directly affects these times.
TIMING WAVEFORMS
HKS
KEY IN
DP
T/P MUTE
DTMF
OSC.
3
TKID
4
TIDP ^{M B}
TPDP
2
TIDP ^{M B}
T_IDP
TKRD
2
TKID
TIDP
TPDP
Low
OSCILLATION
OSCILLATION
Figure 1(a) Normal Dialing Timing Diagram
Publication Release Date: May 1997
-9-
Revision A3