TECHNICAL DATA
IN74HCT273A
Octal D Flip-Flop with
Common Clock and Reset
High-Performance Silicon-Gate CMOS
The IN74HCT273A is identical in pinout to the LS/ALS273.
The IN74HCT273A may be used as a level converter for interfacing
TTL or NMOS outputs to High-Speed CMOS inputs.
This device consists of eight D flip-flops with common Clock and
Reset inputs. Each flip-flop is loaded with a low-to-high transition of the
Clock input. Reset is asynchronous and active low.
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TTL/NMOS Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0 µA
ORDERING INFORMATION
IN74HCT273AN Plastic
IN74HCT273ADW SOIC
TA = -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
PIN 20=VCC
PIN 10 = GND
Inputs
Clock
X
Output
Reset
L
D
X
H
L
Q
L
H
H
H
L
H
L
X
X
no change
no change
H
X = don’t care
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
