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參數(shù)資料
型號(hào)： W91811AN
廠商： WINBOND ELECTRONICS CORP
元件分類： 無(wú)繩電話/電話
英文描述： 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
中文描述： TELEPHONE DIALER CKT, PDIP28
封裝： PLASTIC, DIP-28
文件頁(yè)數(shù)： 4/26頁(yè)
文件大小： 238K
代理商： W91811AN
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(guān)PDF資料
PDF描述
W91812AN 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
W91812N 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
W91813AN 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
W91820N 13-Memory Tone/Pulse Dialer With Handfree,Hold And Lock Functions(具有13個(gè)數(shù)碼存儲(chǔ)器、免提、保持和上鎖功能的音頻/脈沖撥號(hào)器)
W91822AN 13-Memory Tone/Pulse Dialer With Handfree,Hold And Lock Functions(具有13個(gè)數(shù)碼存儲(chǔ)器、免提、保持和上鎖功能的音頻/脈沖撥號(hào)器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W91812AN 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
W91812N 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
W91813AN 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
W91820ALN 制造商:WINBOND 制造商全稱:Winbond 功能描述:13-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
W91820AN 制造商:WINBOND 制造商全稱:Winbond 功能描述:13-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
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