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參數資料
| 型號： | W91460NS |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | Telephone Dialer |
| 中文描述： | 電話撥號器 |
| 文件頁數： | 9/15頁 |
| 文件大小： | 167K |
| 代理商： | W91460NS |
W91460N SERIES
Publication Release Date: May 1997
- 9 -
Revision A2
DC Characteristics, continued
PARAMETER
Keypad Input Drive Current
Keypad Input Sink Current
SYMBOL
I
KD
I
KS
R
HK
CONDITIONS
V
I
= 0.0V
V
I
= 2.5V
MIN.
30
200
-
TYP.
-
400
300
MAX.
-
-
-
UNIT
μ
A
μ
A
K
HKS I/P Pull-high Resistor
Keypad Resistance
-
R
K
-
-
-
5.0
K
AC CHARACTERISTICS
(V
DD
V
SS
= 2.5V, F
OSC
. = 3.579545 MHz, T
A
= 25
°
C, All outputs unloaded)
PARAMETER
Key-in Debounce
Key Release Debounce
Pre-digit Pause
1
SYMBOL
T
KID
T
KRD
T
PDP1
10 ppS
T
PDP2
20 ppS
T
IDP
CONDITIONS
-
-
Mode = V
DD
Mode = Floating
Mode = V
DD
Mode = Floating
10 ppS
20 ppS
Mode = V
DD
Mode = Floating
Auto dialing
Auto dialing
F1
F2
F3
F4
F1, F2, F3, F4
MIN.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TYP.
20
20
40
33.3
20
16.7
800
500
40:60
33.3:66.7
93
93
600
300
73
100
1.0
3.6
150
MAX.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
UNIT
mS
mS
mS
Pre-digit Pause
2
mS
Interdigit Pause
(Auto Dialing)
Make/Break Ratio
mS
M:B
%
Tone Output Duration
Intertone Pause
T
TD
T
ITP
mS
mS
Flash Break Time
T
FB
mS
-
-
-
-
-
-
-
-
Flash Pause Time
Pause Time
On-hook Debounce Time
T
FP
T
P
T
OHD
S
S
-
-
mS
Notes:
1. Crystal parameters suggested for proper operation are Rs < 100
, Lm = 96 mH, Cm = 0.02 pF, Cn = 5 pF, Cl = 18 pF,
F
OSC
. = 3.579545 MHz
±
0.02%.
2. Crystal oscillator accuracy directly affects these times.
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