参数资料
型号: M74HC109M1R
厂商: STMICROELECTRONICS
元件分类: 锁存器
英文描述: HC/UH SERIES, DUAL POSITIVE EDGE TRIGGERED J-KBAR FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO16
封装: SOP-16
文件页数: 5/12页
文件大小: 187K
代理商: M74HC109M1R
M74HC109
2/12
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
X : Don’t Care
LOGIC DIAGRAM
This logic diagram has not be used to estimate propagation delays
PIN No
SYMBOL
NAME AND FUNCTION
1,15
1CLR, 2CLR
Asynchronous Reset
Direct Input
2, 14, 3, 13
1J, 2J, 1K,
2K
Synchronous Inputs;
Flip-Flops 1 and 2
4, 12
1CK, 2CK
Clock Input
5, 11
1PR, 2PR
Asynchronous Set Direct
Input (Active Low)
6, 10
1Q, 2Q
True Flip-Flop Outputs
7, 9
1Q, 2Q
Complement Flip-Flop
Outputs
8
GND
Ground (0V)
16
Vcc
Positive Supply Voltage
INPUTS
OUTPUTS
FUNCTION
CLR
PR
JK
CK
Q
L
H
X
L
H
CLEAR
H
L
X
H
L
PRESET
LL
X
H
----
H
L
H
Qn
NO CHANGE
H
L
H
----
HHHH
H
L
----
HHH
L
Qn
TOGGLE
H
X
Qn
NO CHANGE
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相关代理商/技术参数
参数描述
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