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參數資料
| 型號： | W91810 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| 中文描述： | 23 -記憶音頻/脈沖免提，門鎖和保持撥號器功能 |
| 文件頁數： | 4/26頁 |
| 文件大小： | 238K |
| 代理商： | W91810 |
W91810N SERIES
- 4 -
Pin Description, continued
SYMBOL
22-PIN 24-PIN 28-PIN I/O
FUNCTION
KT
(W91810N/81
0AN/812N/812
AN/811AN/813
AN only)
6
6
7
O
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.
LOCK
(W91810LN/
810ALN/
811ALN only)
6
6
7
I
The function of this terminal is to prevent "0"
dialing and "9" dialing under PABX system long
distance call control. When the first key input after
reset is 0 or 9, all key inputs, including the 0 or 9
key, become invalid and the chip generates no
output. The telephone is reinitialized by a reset.
The function of the LOCK pin is shown below:
LOCK PIN
FUNCTION
V
DD
V
SS
Floating
"0", "9" dialing inhibited
Normal dialing Mode
"0" dialing inhibited
H/P MUTE
7
7
8
I
The H/P MUTE is a conventional inverter output.
During pulse dialing, flash break or hold period,
this output is active high; otherwise, it remains in
low state.
DP
13
15
18
O
N-channel open drain dialing pulse output.
Flash key will cause DP to be active in either tone
mode or pulse mode.
In lock mode, the DP remains low for 300 mS
during off-hook delay time.
The timing diagram for pulse mode is shown in
Figure 1(a, b).
相關PDF資料 |
PDF描述 |
|---|---|
| W91810ALN | 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91810AN | 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91810LN | 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91810N | 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91811AN | 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W91810ALN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91810AN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91810LN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91810N | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91811ALN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
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