54FCT521FMQB National Semiconductor, 54FCT521FMQB Datasheet

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54FCT521FMQB

Manufacturer Part Number
54FCT521FMQB
Description
Manufacturer
National Semiconductor
Type
Identity Comparatorr
Datasheet

Specifications of 54FCT521FMQB

Logic Family
FCT
Technology
CMOS
Number Of Bits
8
Output Function
A=B
Package Type
CFPAK
Mounting
Surface Mount
Pin Count
20
Polarity
Inverting
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
Operating Temperature (max)
125C
Operating Temperature Classification
Military
Lead Free Status / Rohs Status
Not Compliant
© 1998 National Semiconductor Corporation
54FCT521
8-Bit Identity Comparator
General Description
The ’FCT521 is an expandable 8-bit comparator. It com-
pares two words of up to eight bits each and provides a LOW
output when the two words match bit for bit. The expansion
input I
Logic Symbols
FACT
is a trademark of Fairchild Semiconductor Corporation.
A = B
also serves as an active LOW enable input.
IEEE/IEC
DS100968-4
DS100968
DS100968-1
Features
n Expandable to any word length
n Outputs sink capability of 32mA, source capability of 12
n TTL input and output level compatible
n CMOS power consumption
n Standard microcircuit Drawing (SMD) 5962-8854301
Connection Diagram
Pin Descriptions
A
B
T
O
mA
A = B
0
0
A = B
–A
–B
Pin Names
7
7
for DIP and CERPACK
Pin Assignment
Pin Assignment
Word A Inputs
Word B Inputs
Expansion or Enable Input
Identity Output
for LCC
Description
DS100968-2
DS100968-3
September 1998
www.national.com

Related parts for 54FCT521FMQB

54FCT521FMQB Summary of contents

Page 1

... LOW enable input Logic Symbols IEEE/IEC DS100968-4 FACT ™ trademark of Fairchild Semiconductor Corporation. © 1998 National Semiconductor Corporation DS100968 Features n Expandable to any word length n Outputs sink capability of 32mA, source capability TTL input and output level compatible n CMOS power consumption ...

Page 2

Truth Table H = HIGH Voltage Level L = LOW Voltage Level = Note etc Logic Diagram Please note that this diagram ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( Input Diode Current ( −0. 0. Input Voltage (V ) −0. Output Diode Current ( −0. 0. Output Voltage (V ) −0. Output Source or Sink Current ( Ground Current ...

Page 4

AC Electrical Characteristics for ’FCT Family Devices Symbol Parameter t Propagation Delay PLH Propagation Delay PHL Propagation Delay ...

Page 5

Applications Ripple Expansion DS100968-6 Parallel Expansion DS100968-7 5 www.national.com ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted www.national.com 20-Lead Ceramic Leadless Chip Carrier Package Number E20A 6 ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Ceramic Dual-in-line J20A 20-Lead Cerpack Package Number W20A 7 www.national.com ...

Page 8

... National Semiconductor Asia Pacific Customer Fax: +49 (0) 1 80-530 85 86 Response Group Email: europe.support@nsc.com Tel: 65-2544466 Fax: 65-2504466 Tel: +49 (0) 1 80-532 78 32 Email: sea.support@nsc.com Tel: +49 (0) 1 80-534 16 80 National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 ...

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