參數(shù)資料
型號: M74HC123TTR
廠商: 意法半導(dǎo)體
元件分類: 通用總線功能
英文描述: DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
中文描述: 雙RETRIGGERABLE單穩(wěn)態(tài)觸發(fā)器
文件頁數(shù): 2/12頁
文件大?。?/td> 503K
代理商: M74HC123TTR
M74HC123
2/12
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
X : Don’t Care
PIN No
SYMBOL
NAME AND FUNCTION
1,9
1A, 2A
Trigger Inputs (Negative
Edge Triggered)
Trigger Inputs (Positive
Edge Triggered)
Direct Reset LOW and
trigger Action at Positive
Edge
Outputs (Active Low)
External Resistor
Capacitor Connection
Outputs (Active High)
External Capacitor
Connection
External Resistor
Capacitor Connection
Ground (0V)
Positive Supply Voltage
2, 10
1B, 2B
3, 11
1 CLR
2 CLR
4, 12
1Q, 2Q
7
2R
X
/C
X
13, 5
1Q, 2Q
1C
X
2C
X
14, 6
15
1R
X
/C
X
8
GND
Vcc
16
INPUTS
OUTPUTS
NOTE
A
B
CLR
Q
Q
H
L
X
H
H
H
H
OUTPUT ENABLE
INHIBIT
INHIBIT
OUTPUT ENABLE
X
H
L
L
L
H
H
L
X
H
X
OUTPUT ENABLE
INHIBIT
L
L
H
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