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參數(shù)資料
| 型號： | W91560BN |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 3-MEMORY TONE/PULSE DIALER WITH SAVE, KEYTONE, LOCK AND HANDFREE FUNCTIONS |
| 中文描述： | TELEPHONE DIALER CKT, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁數(shù)： | 3/18頁 |
| 文件大?。?/td> | 220K |
| 代理商： | W91560BN |
W91560N SERIES
Publication Release Date: February 1996
- 3 -
Revision A1
PIN DESCRIPTION
SYMBOL
18-PIN
20-PIN
I/O
FUNCTION
Column-
Row Inputs
1
4
&
15
18
1
4
&
17
20
I
The keyboard input is compatible with a standard 5 x 5
keyboard, an inexpensive single contact (Form A)
keyboard, and electronic input.
In normal operation, any single button can be pushed to
produce dual tone, pulses, or function. Activation of two
or more buttons will result in no response except for
single tone.
XT
7
7
I
A built-in inverter provides oscillation with an
inexpensive 3.579545 MHz crystal. The oscillator
ceases when a keypad input is not sensed. The crystal
frequency deviation is 0.02%.
XT
8
8
O
Crystal oscillator output pin.
T/P MUTE
9
9
O
The T/P MUTE is a conventional CMOS N-channel
open drain output.
The output transistor is switched on low level during
dialing sequence (both pulse and tone mode).
Otherwise, it is switched off.
MODE
13
15
I
Pulling mode pin to V
SS
places dialer in tone mode.
Pulling mode pin to V
DD
places dialer in pulse mode
with M/B ratio of 40:60 (10 ppS, except for W91560BN,
which is 20 ppS).
Leaving mode pin floating places dialer in pulse mode
with M/B ratio of 33.3:66.7 (10 ppS, except for
W91560BN, which is 20 ppS).
HKS
10
12
I
The HKS (hook switch) input is used to sense whether
the handset is on-hook or off-hook.
In on-hook state, HKS = 1: chip is in sleeping mode, no
operation.
In off-hook state, HKS = 0: chip is enabled for normal
operation.
HKS pin is pulled to V
DD
by internal resistor.
The key tone output is a conventional CMOS inverter.
The key tone is generated when any valid key is
pressed; the KT pin generates a 1.2 KHz square wave at
35 mS. When no key is pressed, the KT pin remains in
low state.
KT
5
(except for
W91561LN)
5
(except for
W91561ALN)
O
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W91560DN | 3-MEMORY TONE/PULSE DIALER WITH RTC AND LCD DISPALY FUNCTIONS |
| W91560N | 3-MEMORY TONE/PULSE DIALER WITH SAVE, KEYTONE, LOCK AND HANDFREE FUNCTIONS |
| W91561ALN | 3-MEMORY TONE/PULSE DIALER WITH SAVE, KEYTONE, LOCK AND HANDFREE FUNCTIONS |
| W91561DLNF | 3-MEMORY TONE/PULSE DIALER WITH RTC AND LCD DISPALY FUNCTIONS |
| W91561LN | 3-MEMORY TONE/PULSE DIALER WITH SAVE, KEYTONE, LOCK AND HANDFREE FUNCTIONS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W91560DN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:3-MEMORY TONE/PULSE DIALER WITH RTC AND LCD DISPALY FUNCTIONS |
| W91560DNF | 制造商:WINBOND 制造商全稱:Winbond 功能描述:3-MEMORY TONE/PULSE DIALER WITH RTC AND LCD DISPALY FUNCTIONS |
| W91560DNH | 制造商:WINBOND 制造商全稱:Winbond 功能描述:3-MEMORY TONE/PULSE DIALER WITH RTC AND LCD DISPALY FUNCTIONS |
| W91560N | 制造商:WINBOND 制造商全稱:Winbond 功能描述:3-MEMORY TONE/PULSE DIALER WITH SAVE, KEYTONE, LOCK AND HANDFREE FUNCTIONS |
| W91560NS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Dialer |
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