74F524SC National Semiconductor, 74F524SC Datasheet - Page 2

• Manufacturer Part Number: 74F524SC
• Manufacturer: National Semiconductor
• Type: Magnitude Comparatorr

Specifications of 74F524SC

• Logic Family: F
• Technology: Bipolar
• Low Level Output Current: 24mA
• Output Function: A<B, A=B, A>B
• Package Type: SOIC
• Mounting: Surface Mount
• Pin Count: 20
• Polarity: Non-Inverting
• Abs. Propagation Delay Time: 35ns
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temperature Classification: Commercial
• Number Of Bits: 8
• Lead Free Status / RoHS Status: Supplier Unconfirmed

www.fairchildsemi.com
Unit Loading/Fan Out
Note 1: OC
Number Representation Select Table
Select Truth Table
Status Truth Table
(Hold Mode)
1
H
L
X
HIGH if data are equal, otherwise LOW
LOW Voltage Level
HIGH Voltage Level
Immaterial
Open Collector
Pin Names
S
C/SI
CP
SE
M
I/O
C/SO
LT
EQ
GT
0
S
, S
H
H
L
L
SE
0
H
H
H
H
L
X
L
0
–I/O
1
7
S
H
H
L
L
1
C/SI
Mode Select Inputs
Status Priority or Serial Data Input
Clock Pulse Input (Active Rising Edge)
Status Enable Input (Active LOW)
Compare Mode Select Input
Parallel Data Inputs or
3-STATE Parallel Data Outputs
Status Priority or Serial Data Output
Register Less Than Bus Output
Register Equal Bus Output
Register Greater Than Bus Output
H
H
H
H
L
L
L
M
H
L
Hold—Retains Data in Shift Register
Read—Read Contents in Register onto Data Bus,
Data Remains in Register Unaffected by Clock
Shift—Allows Serial Shifting on Next Rising Clock Edge
Load—Load Data on Bus into Register
Inputs
Description
O
O
O
O
O
O
Data Comparison
A
A
A
A
A
A
–O
–O
–O
–O
–O
–O
Magnitude Compare
Twos Complement Compare
H
H
H
H
H
H
X
I/O
I/O
I/O
I/O
I/O
I/O
0
0
0
0
0
0
–I/O
–I/O
–I/O
–I/O
–I/O
–I/O
7
7
7
7
7
7
2
Operation
OC (Note 1) /33.3
OC(Note 1) /33.3
OC(Note 1) /33.3
150/40 (33.3)
HIGH/LOW
3.5/1.083
50/33.3
Operation
1.0/1.0
1.0/1.0
1.0/1.0
1.0/1.0
1.0/1.0
U.L.
EQ
H
H
H
L
L
L
L
GT
H
H
H
H
H
L
L
Outputs
3 mA/24 mA (20 mA)
70 A/ 0.65 mA
(Note 1) /20 mA
(Note 1) /20 mA
(Note 1) /20 mA
Output I
20 A/ 0.6 mA
20 A/ 0.6 mA
20 A/ 0.6 mA
20 A/ 0.6 mA
20 A/ 0.6 mA
Input I
1 mA/20 mA
LT
H
H
H
H
H
L
L
IH
OH
/I
/I
IL
C/SO
OL
H
1
L
L
L
L
L