74HC/HCT112 Philips Semiconductors (Acquired by NXP), 74HC/HCT112 Datasheet - Page 4

• Manufacturer Part Number: 74HC/HCT112
• Description: Dual JK Flip-flop With Set And Reset; Negative-edge Trigger
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
1998 Jun 10
Dual JK flip-flop with set and reset;
negative-edge trigger
Fig.4 Functional diagram.
FUNCTION TABLE
Note
1. If nS
asynchronous set
asynchronous reset
undetermined
toggle
load “0” (reset)
load “1” (set)
hold “no change”
Fig.5 Logic diagram (one flip-flop).
OPERATING MODE
be unpredictable.
H = HIGH voltage level
h = HIGH voltage level one set-up time prior to the HIGH-to-LOW CP
transition
L = LOW voltage level
l = LOW voltage level one set-up time prior to the HIGH-to-LOW CP
transition
q = lower case letters indicate the state of the referenced output one set-up
time prior to the HIGH-to-LOW CP transition
X = don’t care
= HIGH-to-LOW CP transition
D
and nR
D
4
simultaneously go from LOW to HIGH, the output states will
nS
H
H
H
H
H
L
L
D
nR
H
H
H
H
H
L
L
D
INPUTS
nCP
X
X
X
nJ
X
X
X
h
h
l
l
74HC/HCT112
nK
X
X
X
Product specification
h
h
l
l
nQ
OUTPUTS
H
H
H
L
q
L
q
nQ
H
H
L
L
q
L
q