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參數資料
| 型號： | W91312N |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | TONE/PULSE DIALER WITH REDIAL FUNCTION |
| 中文描述： | TELEPHONE DIALER CKT, PDIP18 |
| 封裝： | PLASTIC, DIP-18 |
| 文件頁數： | 2/11頁 |
| 文件大小： | 109K |
| 代理商： | W91312N |
Preliminary W91312N
- 2 -
PIN DESCRIPTION
SYMBOL
PIN
I/O
FUNCTION
Column-
Row Inputs
1
4
&
15
18
I
The keyboard input may be from either the standard 4
×
4
keyboard or an inexpensive single contact (form A) keyboard.
Electronic input from a
μ
C can also be used. A valid key entry is
defined as a single row being connected to a single column.
XT,
XT
7, 8
I, O A built-in inverter provides oscillation with an inexpensive
3.579545 MHz crystal or ceramic resonator.
T/P MUTE
9
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.
MODE
13
I
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). Leaving
mode pin floating places the dialer in pulse mode (20 ppS).
HKS
10
I
Hook switch input. HKS = 1: On-hook state. Chip in sleeping
mode, no operation.
HKS
= 0: Off-hook state. Chip enabled for
normal operation. The HKS pin is pulled to V
DD
by an internal
resistor.
DP
11
O
N-channel open drain dialing pulse output (Figure 1). Flash key will
cause DP to go active in both pulse mode and tone mode.
DTMF
12
O
In pulse mode, remains in low state at all times. In tone mode,
outputs a dual or single tone. Detailed timing diagram for tone
mode is shown in Figure 2(a, b).
OUTPUT FREQUENCY
Specified
Actual
Error %
+0.28
-0.52
R2
R3
R4
C1
C2
C3
697
770
852
941
1209
1336
1477
699
766
848
948
1216
1332
1472
-0.47
+0.74
+0.57
-0.30
-0.34
R1
V
DD
, V
SS
14, 6
I
Power input pins.
B/M
5
I
The break make ratio is 60:40 if B/M = 1 and is 66.6:33.3 if B/M =
0. This pin has no function in DTMF mode.
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| W91320ALN | Tone/Pulse Dialer With Handfree Lock And Hold Functions(具有免提鎖住和保持功能的音頻/脈沖撥號器) |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W91314 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:TONE/PULSE DIALER WITH REDIAL FUNCTION |
| W91314A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:TONE/PULSE DIALER WITH REDIAL FUNCTION |
| W91316 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:TONE/PULSE DIALER WITH REDIAL FUNCTION |
| W91320 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:TONE/PULSE DIALER WITH HANDFREE LOCK AND HOLD FUNCTION |
| W91320A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer |
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