DM74LS534 Octal D-Type Flip-Flop with 3-STATE Outputs
March 1989
Revised March 2000
DM74LS534
Octal D-Type Flip-Flop with 3-STATE Outputs
General Description
The DM74LS534 is a high speed, low power octal D-type
flip-flop featuring separate D-type inputs for each flip-flop
and 3-STATE outputs for bus oriented applications. A buff-
ered Clock (CP) and Output Enable (OE) is common to all
flip-flops. The DM74LS534 is the same as the DM74LS374
except that the outputs are inverted.
Ordering Code:
Order Number
DM74LS534N
Package Number
N20A
Package Description
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Logic Symbol
Connection Diagram
V
CC
=
Pin 20
GND
=
Pin 10
Pin Descriptions
Pin Name
D0鈥揇7
CP
OE
O0鈥揙7
Data Inputs
Clock Pulse Input (Active Rising Edge)
3-STATE Output Enable Input (Active LOW)
Complementary 3-STATE Outputs
Description
Truth Table
Inputs
D
n
H
L
X
CP
Outputs
X
OE
L
L
H
O
n
L
H
Z
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Z
=
High Impedance
=
LOW-to-HIGH Clock (CP) transistion
漏 2000 Fairchild Semiconductor Corporation
DS009812
www.fairchildsemi.com