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參數(shù)資料
| 型號(hào)： | SNJ54LV221AJ |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | Small Signal NPN; Package: SOT-23 (TO-236) 3 LEAD; No of Pins: 3; Container: Tape and Reel; Qty per Container: 3000 |
| 中文描述： | 施密特觸發(fā)輸入與雙單穩(wěn)態(tài)多頻振蕩器 |
| 文件頁數(shù)： | 3/19頁 |
| 文件大?。?/td> | 436K |
| 代理商： | SNJ54LV221AJ |
SCLS450G DECEMBER 1999 REVISED APRIL 2005
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
FUNCTION TABLE
(each multivibrator)
INPUTS
OUTPUTS
FUNCTION
CLR
A
B
Q
Q
L
X
X
L
H
Reset
H
H
X
L
H
Inhibit
H
X
L
↑
H
L
H
Inhibit
H
L
↓
L
Outputs enabled
H
↑
Outputs enabled
H
Outputs enabled
This condition is true only if the output of the latch formed by the
NAND gate has been conditioned to the logic 1 state prior to CLR
going high. This latch is conditioned by taking either A high or B
low while CLR is inactive (high).
logic diagram, each multivibrator (positive logic)
CLR
Cext
Rext/Cext
R
B
A
Q
Q
input/output timing diagram
A
B
CLR
Q
Q
tw
tw
Rext/Cext
tw
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