CD54HC73, CD74HC73,
CD74HCT73
Data sheet acquired from Harris Semiconductor
SCHS134E
Dual J-K Flip-Flop with Reset
Negative-Edge Trigger
February 1998 - Revised September 2003
Features
Description
• Hysteresis on Clock Inputs for Improved Noise
Immunity and Increased Input Rise and Fall Times
The ’HC73 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 HCT logic family is functionally as well as pin compatible
with the standard LS 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
o
PART NUMBER
CD54HC73F3A
CD74HC73E
( C)
PACKAGE
14 Ld CERDIP
14 Ld PDIP
14 Ld SOIC
14 Ld SOIC
14 Ld SOIC
14 Ld PDIP
14 Ld SOIC
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
• HC Types
- 2V to 6V Operation
- High Noise Immunity: N = 30%, N = 30% of V
IL IH CC
CD74HC73M
at V
= 5V
CC
CD74HC73MT
CD74HC73M96
CD74HCT73E
CD74HCT73M
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V = 0.8V (Max), V = 2V (Min)
IL IH
- CMOS Input Compatibility, I ≤ 1µA at V , V
OL OH
l
NOTE: When ordering, use the entire part number. The suffix 96
denotes tape and reel. The suffix T denotes a small-quantity reel of
250.
Pinout
CD54HC73 (CERDIP)
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.
Copyright © 2003, Texas Instruments Incorporated
1