W91620 Datasheet, PDF (12/16 Pages) Winbond – 10-MEMORY TONE/PULSE DIALER WITH TWO-STAGE REDIAL FUNCTION

W91620 SERIES
AC CHARACTERISTICS
PARAMETER
Keypad Active in Debounce
Key Release Debounce
Pre-digit Pause
SYMBOL
TKID
TKRD
TPDP1
Interdigit Pause (Auto Dialing)
Make/Break Ratio
10 ppS
TIDP
M/B
DTMF Output Duration
Intertone Pause
Flash Break Time
Flash Pause
Pause Time
Pre-tone Mute
TTD
TITP
TFB
TFP
TP
TPTM
CONDITIONS
-
-
Mode Pin =
Floating
Mode Pin = 1
10 ppS
M/B = 1:2
M/B = 2:3
Auto Dialing
-
-
-
-
MIN.
-
-
-
TYP.
20
20
33.3
MAX.
-
-
-
UNIT
mS
mS
mS
-
40
-
-
800
-
mS
- 33:67 -
%
- 40:60 -
-
90
-
mS
-
90
-
mS
-
100
-
mS
-
800
-
mS
-
4.0
-
S
-
70
-
mS
Notes:
1. Crystal parameters suggested for proper operation are RS < 100 Ω, 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.
- 12 -
Publication Release Date: December 1994
Revision A3