CD74HC112,
CD74HCT112
Data sheet acquired from Harris Semiconductor
SCHS141
Dual J-K Flip-Flop with Set and Reset
Negative-Edge Trigger
March 1998
at V
= 5V
Features
CC
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
[ /Title
(CD74
HC112
,
CD74
HCT11
2)
V = 0.8V (Max), V = 2V (Min)
IL IH
• Hysteresis on Clock Inputs for Improved Noise
Immunity and Increased Input Rise and Fall Times
- CMOS Input Compatibility, I ≤ 1µA at V , V
OL OH
l
• Asynchronous Set and Reset
• Complementary Outputs
• Buffered Inputs
Description
The Harris CD74HC112 and CD74HCT112 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.
/Sub-
ject
• Typical f
MAX
= 60MHz at V = 5V, C = 15pF,
CC L
o
T = 25 C
A
(Dual
J-K
• Fanout (Over Temperature Range)
These flip-flops have independent J, K, Set, Reset, and
Clock inputs and Q and Q outputs. They change state on the
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
Flip-
Flop
with
Setand
Reset
Nega-
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads negative-going transition of the clock pulse. Set and Reset
are accomplished asynchronously by low-level inputs.
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C
• Balanced Propagation Delay and Transition Times
The 74HCT logic family is functionally as well as pin-
compatible with the standard 74LS logic family.
• Significant Power Reduction Compared to LSTTL
Logic ICs
.
Ordering Information
• HC Types
TEMP. RANGE
PKG.
NO.
- 2V to 6V Operation
o
PART NUMBER
( C)
PACKAGE
- High Noise Immunity: N = 30%, N = 30% of V
IL IH CC
CD74HC112E
-55 to 125
16 Ld PDIP
E16.3
Pinout
CD74HC112, 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.
File Number 1843.1
Copyright © Harris Corporation 1998
1