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參數資料
| 型號： | W91661 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 20-Memory Tone/Pulse Switchable Dialer(具有20個數碼存儲器的音頻/脈沖可變換撥號器) |
| 中文描述： | TELEPHONE DIALER CKT, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數： | 2/16頁 |
| 文件大小： | 193K |
| 代理商： | W91661 |
W91660 SERIES
- 2 -
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
12
11
HKS
DTMF
MODE
R4
R3
R2
R1
DP
V
C1
C2
C3
C4
C5
C6
V
XT
XT
NC
R5
16
18
17
15
14
13
19
20
21
22
23
24
HFO
HFI
T/P MUTE
K MUTE
SS
DD
PIN DESCRIPTION
SYMBOL
PIN
I/O
FUNCTION
Column-
Row Inputs
1
6
&
20
24
I
The keyboard input may be used with either the standard 5
×
6
keyboard or the inexpensive single contact (form A) keyboard.
Electronic input with
μ
C can also be used.
A valid key entry is defined by a single row being connected to a
single column.
XT, XT
9, 10
I, O
A built-in inverter provides oscillation with an inexpensive 3.579545
MHz crystal or ceramic resonator.
T/P MUTE
11
O
The T/P MUTE is a conventional CMOS N-channel open drain
output. The output transistor is switched on during pulse and tone
mode dialing sequence and flash break. Otherwise, it is switched
Off.
Pulling mode pin to V
SS
places the dialer in tone mode. Pulling
mode pin to V
DD
places the dialer in pulse mode (10 ppS, M/B =
1:2 or 2:3).
MODE
17
I
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