W91472 Ver la hoja de datos (PDF) - Winbond
Número de pieza
componentes Descripción
Fabricante
W91472 Datasheet PDF : 14 Pages
| |||
W91472N SERIES
DC Characteristics, continued
PARAMETER
SYMBOL
T/P MUTE Output
IML
Sink Current
HFO Drive/Sink
IHFH
Current
IHFL
Keypad Input Drive
IKD
Current
Keypad Input Sink
IKS
Current
Keypad Resistance
-
CONDITIONS
VMO = 0.5V
VHFH = 2.0V
VHFL = 0.5V
VI = 0V
VI = 2.5V
-
MIN.
0.5
TYP. MAX.
-
-
UNIT
mA
0.5
-
0.5
-
4
-
-
mA
-
-
µA
200 400
-
µA
-
-
5.0
KΩ
AC CHARACTERISTICS
PARAMETER
Key-in Debounce
Key Release Debounce
On-hook Debounce
Pre-digit Pause1
Pre-digit Pause2
Interdigit Pause
(Auto dialing)
Make/Break Ratio
Tone Output Duration
Intertone Pause
Flash Break Time
Flash Pause Time
Pause Time
SYMBOL
TKID
TKRD
TOHD
TPDP1
10 ppS
TPDP2
20 ppS
TIDP
M:B
TTD
TITP
TFB
TFP
TP
CONDITIONS
-
-
-
Mode Pin = VDD
Mode Pin = Floating
Mode Pin = VDD
Mode Pin = Floating
10 ppS
20 ppS
Mode Pin = VDD
Mode Pin = Floating
F1
F2
F3
F4
MIN.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TYP.
20
20
150
40
33.3
20
16.7
800
500
40:60
33.3:66.7
93
93
600
300
73
100
1.0
3.6
MAX.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
UNIT
mS
mS
mS
mS
mS
mS
mS
mS
mS
%
%
mS
mS
mS
S
S
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.
Publication Release Date: May 1997
-9-
Revision A2
Share Link: 