74ACT521SCX National Semiconductor, 74ACT521SCX Datasheet - Page 2

• Manufacturer Part Number: 74ACT521SCX
• Manufacturer: National Semiconductor
• Type: Identity Comparatorr

Specifications of 74ACT521SCX

• Logic Family: ACT
• Technology: CMOS
• High Level Output Current: -24mA
• Low Level Output Current: 24mA
• Output Function: A=B
• Quiescent Current: 4uA
• Mounting: Surface Mount
• Pin Count: 20
• Polarity: Inverting
• Abs. Propagation Delay Time: 11ns
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temperature Classification: Industrial
• Number Of Bits: 8
• Lead Free Status / RoHS Status: Compliant

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Truth Table
H
L
Note 1: A
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
Applications
LOW Voltage Level
HIGH Voltage Level
0
I
A
H
H
L
L
B
0
B
, A
1
Inputs
B
1
, A
A
A
A
A
2
B
B (Note 1)
B (Note 1)
2
, etc.
A, B
Outputs
O
A
H
H
H
L
Parallel Expansion
Ripple Expansion
B
2
Logic Diagram