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參數(shù)資料
| 型號： | W91640B |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 5-Memory Tone/Pulse Switchable Dialer(具有5個數(shù)碼存儲器的音頻/脈沖可變換撥號器) |
| 中文描述： | TELEPHONE DIALER CKT, PDIP22 |
| 封裝： | PLASTIC, DIP-22 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大小： | 192K |
| 代理商： | W91640B |
W91640 SERIES
- 10 -
DC Characteristics, continued
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
HFO Drive Current
I
HFH
V
HFH
= 2.0V
0.5
-
-
mA
HFO Sink Current
I
HFL
V
HFL
= 0.5V
0.5
-
-
mA
Keypad Drive Current
I
KD
V
I
= 0V
30
-
-
μ
A
μ
A
K
Keypad Sink Current
I
KS
V
I
= 2.5V
200
400
-
Keypad Resistance
-
-
5.0
AC CHARACTERISTICS
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Keypad Active in Debounce
T
KID
-
20
-
mS
Key Release Debounce
T
KRD
-
20
-
mS
Pre-digit Pause
T
PDP
M/B = 1/2
-
33.3
-
mS
M/B = 2/3
-
40
-
mS
Interdigit Pause
(Auto dialing)
T
IDP
10 ppS
-
800
-
mS
Make/Break Ratio
M/B
M/B = 1/2
-
33:67
-
%
M/B = 2/3
-
40:60
-
%
Tone Output Duration
T
TD
Auto Dialing
-
93
-
mS
Intertone Pause
T
ITP
Auto Dialing
-
93
-
mS
Flash Break Time
T
FB
-
98
-
mS
Flash Pause Time
T
FP
-
1.2
-
S
Pause Time
T
P
-
2.5
-
S
Notes:
1. Crystal parameters suggested for proper operation are Rs < 100
, Lm = 96 mH, Cm = 0.02 pF, Cn = 5 pF, Cl = 18 pF,
= 3.579545 MHz
±
0.02%.
F
OSC.
2. Crystal oscillator accuracy directly affects these times.
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