CD54/74HC112,
CD54/74HCT112
Data sheet acquired from Harris Semiconductor
SCHS141B
Dual J-K Flip-Flop with Set and Reset
Negative-Edge Trigger
March 1998 - Revised March 2002
Features
Description
• Hysteresis on Clock Inputs for Improved Noise
Immunity and Increased Input Rise and Fall Times
The ’HC112 and ’HCT112 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
HC112
,
CD74
HCT11
2)
• Asynchronous Set and Reset
• Complementary Outputs
• Buffered Inputs
These flip-flops have independent J, K, Set, Reset, and
Clock inputs and Q and Q outputs. They change state on the
negative-going transition of the clock pulse. Set and Reset
are accomplished asynchronously by low-level inputs.
• Typical f
MAX
= 60MHz at V = 5V, C = 15pF,
CC L
o
T = 25 C
A
• Fanout (Over Temperature Range)
The HCT logic family is functionally as well as pin-
compatible with the standard LS logic family.
/Sub-
ject
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
.
(Dual
J-K
Flip-
Flop
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C
• Balanced Propagation Delay and Transition Times
Ordering Information
TEMP. RANGE
o
PART NUMBER
CD54HC112F3A
CD74HC112E
( C)
PACKAGE
16 Ld CERDIP
16 Ld PDIP
• Significant Power Reduction Compared to LSTTL
Logic ICs
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
with
• HC Types
Setand
Reset
Nega-
- 2V to 6V Operation
CD74HC112NSR
CD54HCT112F3A
CD74HCT112E
NOTES:
16 Ld SOP
- High Noise Immunity: N = 30%, N = 30% of V
IL IH CC
16 Ld CERDIP
16 Ld PDIP
at V
= 5V
CC
• HCT Types
- 4.5V to 5.5V Operation
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
- Direct LSTTL Input Logic Compatibility,
V = 0.8V (Max), V = 2V (Min)
IL IH
2. Wafer and die is available which meets all electrical specifica-
tions. Please contact your local TI sales office or customer ser-
vice for ordering information.
- CMOS Input Compatibility, I ≤ 1µA at V , V
OL OH
l
Pinout
CD54HC112, CD54HCT112
(CERDIP)
CD74HC112
(PDIP, SOP)
CD74HCT112
(PDIP)
TOP VIEW
1CP
1K
1
2
3
4
5
6
7
8
16 V
CC
15 1R
14 2R
13 2CP
12 2K
11 2J
10 2S
1J
1S
1Q
1Q
2Q
9
2Q
GND
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © 2002, Texas Instruments Incorporated
1