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Número de pieza
componentes Descripción
W91440N Ver la hoja de datos (PDF) - Winbond
Número de pieza
componentes Descripción
Fabricante
W91440N
10-MEMORY TONE/PULSE DIALER WITH SAVE FUNCTION
Winbond
W91440N Datasheet PDF : 14 Pages
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W91440N SERIES
DC Characteristics, continued
PARAMETER
DP Output Sink Current
T/P MUTE Output Sink
Current
Keypad Input Drive
Current
Keypad Input Sink
Current
HKS I/P Pull-High
Resistor
Keypad Resistance
SYMBOL
CONDITIONS
I
PL
V
PO
= 0.5V
I
TML
V
TMO
= 0.5V
I
KD
V
I
= 0.0V
I
KS
V
I
= 2.5V
R
HK
-
R
K
-
MIN. TYP. MAX.
0.5
-
-
0.5
-
-
UNIT
mA
mA
30
-
-
µ
A
200 400
-
µ
A
-
300
-
K
Ω
-
-
5.0
K
Ω
AC CHARACTERISTICS
(V
DD
−
V
SS
= 2.5V, F
OSC.
= 3.579545 MHz, T
A
= 25
°
C, all outputs unloaded)
PARAMETER
SYMBOL
CONDITIONS
Key in Debounce
T
KID
-
Key Release Debounce T
KRD
-
Pulse Mute Delay
T
MD
Mode = V
DD
Mode = Floating
Pre-digit-pause
1
T
PDP1
Mode = V
DD
10 ppS Mode = Floating
Pre-digit-pause
2
T
PDP2
Mode = V
DD
20 ppS Mode = Floating
Interdigit Pause
T
IDP
10 ppS
(Auto Dialing)
20 ppS
Make/Break Ratio
M:B Mode = V
DD
Mode = Floating
Tone Output Duration
T
TD
Auto dialing
Intertone Pause
T
ITP
Auto dialing
Flash Break Time
T
FB
F1
F2
F3
F4
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
MAX.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
UNIT
mS
mS
mS
mS
mS
mS
%
mS
mS
mS
-
-8-
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