W91430N Datasheet, PDF (8/14 Pages) Winbond – 13-MEMORY TONE/PULSE DIALER WITH SAVE FUNCTION

W91430N SERIES
DC Characteristics, continued
PARAMETER
Keypad Input Sink
Current
HKS I/P Pull-High
Resistor
Keypad Resistance
SYMBOL
CONDITIONS
IKS
VI = 2.5V
RHK
-
RK
-
MIN. TYP. MAX.
200 400
-
-
300
-
-
-
5.0
UNIT
µA
KΩ
KΩ
AC CHARACTERISTICS
(VDD-VSS = 2.5V, FOSC. = 3.579545 MHz, TA = 25° C, all outputs unloaded)
PARAMETER
SYMBOL
CONDITIONS
Key in Debounce
TKID
-
Key Release Debounce TKRD
-
Pulse Mute Delay
TMD Mode = VDD
Mode = Floating
Pre-digit-pause 1
TPDP1 Mode = VDD
10 ppS Mode = Floating
Pre-digit-pause 2
TPDP2 Mode = VDD
20 ppS Mode = Floating
Interdigit Pause
TIDP _{10 ppS}
(Auto Dialing)
20 ppS
Make/Break Ratio
Tone Output Duration
M:B Mode = VDD
Mode = Floating
TTD _{Auto dialing}
Intertone Pause
TITP _{Auto dialing}
F1
Flash Break Time
TFB
F2
F3
F4
Flash Pause Time
TFP
F1, F2, F3, F4
Pause Time
TP
On-hook Debounce
Time
TOHD
MIN.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TYP.
20
20
40
33.3
40
33.3
20
16.7
800
500
40:60
33:67
93
93
600
300
73
100
1.0
3.6
150
MAX.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
UNIT
mS
mS
mS
mS
mS
mS
%
mS
mS
mS
-
-
S
-
S
-
mS
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.
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