DM74LS534 Datasheet, PDF (1/5 Pages) Fairchild Semiconductor – 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 Package Number
Package Description
DM74LS534N
N20A
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
Description
D0–D7 Data Inputs
CP
Clock Pulse Input (Active Rising Edge)
OE
3-STATE Output Enable Input (Active LOW)
O0–O7 Complementary 3-STATE Outputs
Truth Table
Inputs
D_n
H
L
C_P
X
X
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
= LOW-to-HIGH Clock (CP) transistion
Outputs
OE
O_n
L
L
L
H
H
Z
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