IN74HC109A Datasheet, PDF (1/6 Pages) IK Semicon Co., Ltd – Dual J-K Flip-Flop with Set and Reset High-Performance Silicon-Gate CMOS

TECHNICAL DATA
Dual J-K Flip-Flop
with Set and Reset
High-Performance Silicon-Gate CMOS
IN74HC109A
The IN74HC109A is identical in pinout to the LS/ALS109. The
device inputs are compatible with standard CMOS outputs, with pullup
resistors, they are compatible with LS/ALSTTL outputs.
This device consists of two J-K flip-flops with individual set, reset,
and clock inputs. Changes at the inputs are reflected at the outputs with
the next low-to-high transition of the clock. Both Q to Q outputs are
available from each flip-flop.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
IN74HC109AN Plastic
IN74HC109AD SOIC
T_A = -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 16=V_CC
PIN 8 = GND
FUNCTION TABLE
Inputs
Outputs
Set Reset Clock J K Q Q
LH
X XX H L
HL
L
L
X XX L H
X
X X H^*
H^*
HH
LL L H
HH
H L Toggle
HH
L H No Change
HH
HH H L
HH
L X X No Change
X = Don’t care
*_{Both outputs will remain high as long as Set and}
Reset are low, but the output states are
unpredictable if Set and Reset go high
simultaneously.
Rev. 00