Motorola MC74F381DW, MC74F381N, MC54F381J Datasheet
For:char
Printed on:Mon, Feb 6, 1995 09:49:45
From book:DL121CH4 (5) VIEW
Document:MC74F381 (5) VIEW
Last saved on:Fri, Feb 3, 1995 16:06:52
4-179
FAST AND LS TTL DATA
4-BIT ARITHMETIC LOGIC UNIT
The MC54/74F381 performs three arithmetic and three logic operations on
two 4-bit words, A and B. Two additional Select input codes force the Function
outputs LOW or HIGH. Carry Propagate and Generate outputs are provided
for use with the F182 Carry Lookahead Generator for high-speed expansion
to longer word lengths. For ripple expansion, refer to the F382 ALU data
sheet.
• Low Input Loading Minimizes Drive Requirements
• Performs Six Arithmetic and Logic Functions
• Selectable Low (Clear) and High (Preset) Functions
• Carry Generate and Propagate Outputs for use with
Carry Lookahead Generator
CONNECTION DIAGRAM
18 17 16 15 14 13
1 2 3 4 5 6
7
20 19
8
V
CC
A
1
A2B2A3B
3
P
C
n
G
B1A0B0S0S1S2F
0
9 10
F1GND
12 11
F3F
2
LOGIC SYMBOL
15
7
6
5
13
14
C
n
S
2
S
1
S
0
F0F1F2F
3
3 161718194 1 2
A0B0A1B1A2B2A3B
3
G
P
VCC = PIN 20
GND = PIN 10
8 12119
GUARANTEED OPERATING RANGES
Symbol Parameter Min Typ Max Unit
V
CC
Supply Voltage 54, 74 4.5 5.0 5.5 V
54 –55 25 125
TAOperating Ambient Temperature Range
74 0 25 70
°C
I
OH
Output Current — High 54, 74 –1.0 mA
I
OL
Output Current — Low 54, 74 20 mA
MC54/74F381
4-BIT ARITHMETIC LOGIC UNIT
FAST SCHOTTKY TTL
ORDERING INFORMATION
MC54FXXXJ Ceramic
MC74FXXXN Plastic
MC74FXXXDW SOIC
20
1
J SUFFIX
CERAMIC
CASE 732-03
20
1
N SUFFIX
PLASTIC
CASE 738-03
20
1
DW SUFFIX
SOIC
CASE 751D-03
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