CD74HC73,
CD74HCT73
Data sheet acquired from Harris Semiconductor
SCHS134
Dual J-K Flip-Flop with Reset
Negative-Edge Trigger
February 1998
Features
Description
• Hysteresis on Clock Inputs for Improved Noise
Immunity and Increased Input Rise and Fall Times
The Harris CD74HC73 and CD74HCT73 utilize silicon gate
CMOS technology to achieve operating speeds equivalent to
LSTTL parts. They exhibit the low power consumption of
standard CMOS integrated circuits, together with the ability
to drive 10 LSTTL loads.
[ /Title
(CD74
HC73,
CD74
HCT73
)
• Asynchronous Reset
• Complementary Outputs
• Buffered Inputs
These flip-flops have independent J, K, Reset and Clock
inputs and Q and Q outputs. They change state on the
negative-going transition of the clock pulse. Reset is
accomplished asynchronously by a low level input. This
device is functionally identical to the HC/HCT107 but differs
in terminal assignment and in some parametric limits.
• Typical f
MAX
= 60MHz at V = 5V, C = 15pF,
CC L
o
T = 25 C
A
/Sub-
ject
• Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
(Dual
J-K
Flip-
Flop
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads The 74HCT logic family is functionally as well as pin
compatible with the standard 74LS logic family.
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C
• Balanced Propagation Delay and Transition Times
Ordering Information
• Significant Power Reduction Compared to LSTTL
Logic ICs
TEMP. RANGE
PKG.
NO.
o
PART NUMBER
CD74HC73E
CD74HCT73E
CD74HC73M
NOTES:
( C)
PACKAGE
14 Ld PDIP
14 Ld PDIP
14 Ld SOIC
-55 to 125
-55 to 125
-55 to 125
E14.3
• HC Types
- 2V to 6V Operation
E14.3
- High Noise Immunity: N = 30%, N = 30% of V
IL IH CC
M14.15
at V
= 5V
CC
• HCT Types
6. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V = 0.8V (Max), V = 2V (Min)
7. Wafer and die for this part number is available which meets all
electrical specifications. Please contact your local sales office or
Harris customer service for ordering information.
IL
IH
- CMOS Input Compatibility, I ≤ 1µA at V , V
OL OH
l
Pinout
CD74HC73, CD74HCT73
(PDIP, SOIC)
TOP VIEW
1CP
1R
1
2
3
4
5
6
7
14 1J
13 1Q
12 1Q
11 GND
10 2K
1K
V
CC
2CP
2R
9
8
2Q
2Q
2J
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
File Number 1721.1
Copyright © Harris Corporation 1998
1