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參數(shù)資料
型號(hào)： W91822AN
廠商： WINBOND ELECTRONICS CORP
元件分類(lèi)： 無(wú)繩電話(huà)/電話(huà)
英文描述： 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)
中文描述： TELEPHONE DIALER CKT, PDIP22
封裝： PLASTIC, DIP-22
文件頁(yè)數(shù)： 5/22頁(yè)
文件大小： 260K
代理商： W91822AN
W91820N SERIES
Publication Release Date: May 1999
- 5 -
Revision A2
Pin Description, continued
SYMBOL
20-PIN
22-PIN
I/O
FUNCTION
HFI, HFO
-
11, 12
I, O Handfree control pins.
A low pulse on the HFI input pin toggles the handfree
control state. The status of the handfree control state is
listed in the following table:
HOOK SW.
-
On Hook
Off Hook
On Hook
Off Hook
Off Hook
CURRENT STATE
NEXT STATE
HFO
Low
High
High
-
Low
High
INPUT
HFI
HFI
HFI
Off Hook
On Hook
On Hook
HFO
High
Low
Low
Low
Low
High
DIALING
Yes
No
Yes
Yes
No
Yes
The HFI pin is pulled to V
DD
by an internal resistor.
A detailed timing diagram is shown in Figure 3.
BLOCK DIAGRAM
DTMF
XT
XT
HKS
MODE
RAM
COUNTER
SYSTEM CLOCK
GENERATOR
LOCATION
LATCH
D/A
ROW & COLUMN
PROGRAMMABLE
COUNTER
DATA LATCH
& DECODER
READ/WRITE
HFI
ROW
(R1 ~ R4, Vx/R5)
COLUMN
(C1 ~ C4, Vss)
CONTROL
LOGIC
PULSE
CONTROL
LOGIC
KEYBOARD
INTERFACE
CONVERTER
LOCK
T/P MUTE
KT
HFO
H/P MUTE
DP
相關(guān)PDF資料
PDF描述
W91822N 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)
W91824AN 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)
W91824N 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)
W91820ALN 13-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
W91820LN 13-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W91822N 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:13-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
W91824AN 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:13-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
W91824N 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:13-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
W9183RC 制造商:Winslow Adaptics Ltd 功能描述:16 way DIL signal isolator,0.3in pitch
W9193 制造商:Performance Tool 功能描述:Lighted LED Bit Driver with Four Bits 制造商:PERFORMANCE TOOLS 功能描述:LED BIT DRIVER
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