M74HC109C1R STMICROELECTRONICS [STMicroelectronics], M74HC109C1R Datasheet - Page 2

• Manufacturer Part Number: M74HC109C1R
• Description: DUAL J-K FLIP FLOP WITH PRESET AND CLEAR
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M54/M74HC109
PIN DESCRIPTION
LOGIC CIRCUIT
TRUTH TABLE
X = DON’T CARE
2/11
2, 4, 3, 13
PIN No
CLR
1, 15
4, 12
5, 11
6, 10
7, 9
16
H
H
H
H
H
H
L
L
8
1CLR, 2CLR Asynchronous Reset
1J, 2J, 1K,
1CK, 2CK
1PR, 2PR
SYMBOL
1Q, 2Q
1Q, 2Q
PR
GND
H
H
H
H
H
H
V
L
L
2K
CC
INPUTS
Direct Input
Syncronous Inputs;
Flip-flops 1 and 2
Clock Input
Asynchronous Set Direct
Input (Active LOW)
True Flip-flop Outputs
Complement Flip-flop
Outputs
Ground (0V)
Positive Supply Voltage
NAME AND FUNCTION
X
X
X
H
H
X
J
L
L
K
H
H
X
X
X
X
L
L
CK
X
X
X
IEC LOGIC SYMBOL
Qn
Qn
Qn
Q
H
H
H
L
L
OUTPUTS
Qn
Qn
Qn
Q
H
H
H
L
L
NO CHANGE
NO CHANGE
FUNCTION
PRESET
TOGGLE
CLEAR