HD74LS76A
Function Table
Inputs
Preset
L
H
L
H
H
H
H
Clear
H
L
L
H
H
H
H
Clock
X
X
X
↓
↓
↓
↓
J
X
X
X
L
H
L
H
K
X
X
X
L
L
H
H
Q
H
L
H*
Q
0
H
L
Toggle
Outputs
Q
L
H
H*
Q
0
L
H
H
H
H
X
X
Q
0
Q
0
H; high level, L; low level, X; irrelevant,
↓;
transition from high to low level,
Q
0
; level of Q before the indicated steady-state input conditions were established.
Q
0
; complement of
Q
0
or level of Q before the indicated steady-state input conditions were established.
Toggle; each output changes to the complement of its previous level on each active transition indicated by
↓.
* This configuration is nonstable; that is, it will not persist when preset and clear inputs return to their inactive (high) level.
Block Diagram (1/2)
Q
Preset
K
Q
Clear
J
Clock
Absolute Maximum Ratings
Item
Supply voltage
Input voltage
Power dissipation
Storage temperature
Symbol
V
CC
V
IN
P
T
Tstg
Ratings
7
7
400
–65 to +150
Unit
V
V
mW
°C
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Recommended Operating Conditions
Item
Supply voltage
Output current
Operating temperature
Clock frequency
Pulse width
Setup time
Hold time
Clock High
Clear Preset Low
“H” Data
“L” Data
Symbol
V
CC
I
OH
I
OL
Topr
f
clock
t
w
t
w
t
su
t
su
t
h
Min
4.75
—
—
–20
0
20
25
20↓
20↓
0↓
Typ
5.00
—
—
25
—
—
—
—
—
—
Max
5.25
–400
8
75
30
—
—
—
—
—
Unit
V
µA
mA
°C
MHz
ns
ns
ns
Rev.3.00, Jul.22.2005, page 2 of 6
RENESAS [ RENESAS TECHNOLOGY CORP ]
