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參數(shù)資料
| 型號： | W91321N |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 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) |
| 中文描述： | TELEPHONE DIALER CKT, PDIP18 |
| 封裝： | PLASTIC DIP-18 |
| 文件頁數(shù)： | 5/19頁 |
| 文件大小： | 217K |
| 代理商： | W91321N |
W91320N SERIES
Publication Release Date: May 1997
- 5 -
Revision A2
Pin Description, continued
SYMBOL
18-PIN
20-PIN
22-PIN
I/O
FUNCTION
HFI,
HFO
-
10, 11
(W91320AN/
321AN)
11, 12
I, O
Handfree control pins. The handfree
control state is toggled on by a low
pulse on the HFI input pin. The status
of the handfree control state is
described in the following table:
CURRENT STATE
Input
HFO
Dialing
High
Yes
On Hook
High
Low
No
Off Hook
High
Low
Yes
On Hook
Off Hook
Low
Yes
Off Hook
Low
High
On Hook
On Hook
Low
No
Off Hook
High
Yes
Low
Hook SW.
HFO
NEXT STATE
HFI
HFI
HFI
HFI pin is pulled to V
DD
by internal
resistor.
Detailed timing diagrams are shown in
Figure 3(a, b, c).
LOCK
-
5
(6,
W91320LN
only)
5
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.
LOCK PIN
FUNCTION
Floating
Normal dialing mode
V
DD
V
SS
"0," "9" dialing inhibited
"0" dialing inhibited
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W91330AN | Tone/Pulse Dialer With Handfree Lock And Key Tone Functions(具有免提鎖住和主鍵音功能的音頻/脈沖撥號器) |
| W91330ALN | Tone/Pulse Dialer With Handfree Lock And Key Tone Functions(具有免提鎖住和主鍵音功能的音頻/脈沖撥號器) |
| W91330LN | Tone/Pulse Dialer With Handfree Lock And Key Tone Functions(具有免提鎖住和主鍵音功能的音頻/脈沖撥號器) |
| W91330N | Tone/Pulse Dialer With Handfree Lock And Key Tone Functions(具有免提鎖住和主鍵音功能的音頻/脈沖撥號器) |
| W91331AN | Tone/Pulse Dialer With Handfree Lock And Key Tone Functions(具有免提鎖住和主鍵音功能的音頻/脈沖撥號器) |
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| W91330 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer |
| W91330A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer |
| W91330ALN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:TONE/PULSE DIALER WITH HANDFREE LOCK AND KEY TONE FUNCTION |
| W91330AN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:TONE/PULSE DIALER WITH HANDFREE LOCK AND KEY TONE FUNCTION |
| W91330LN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:TONE/PULSE DIALER WITH HANDFREE LOCK AND KEY TONE FUNCTION |
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