74FCT521AT/CT FAST CMOS 8-BIT IDENTITY COMPARATOR
FAST CMOS 8-BIT IDENTITY COMPARATOR
INDUSTRIALTEMPERATURERANGE
74FCT5...
74FCT521AT/CT FAST
CMOS 8-BIT IDENTITY COMPARATOR
FAST
CMOS 8-BIT IDENTITY COMPARATOR
INDUSTRIALTEMPERATURERANGE
74FCT521AT/CT
FEATURES:
A and C grades Low input and output leakage ≤1µA (max.)
CMOS power levels True TTL input and output compatibility:
– VOH = 3.3V (typ.) – VOL = 0.3V (typ.) High Drive outputs (-15mA IOH, 48mA IOL) Meets or exceeds JEDEC standard 18 specifications Power off disable outputs permit "live insertion" Available in SOIC and QSOP packages
DESCRIPTION:
The IDT74FCT521T is an 8-bit identity comparator built using an advanced dual metal
CMOS technology. These devices compare two words of up to eight bits each and provide a low output when the two words match bit for bit. The expansion input IA = B also serves as an active low enable input.
FUNCTIONAL BLOCK DIAGRAM
A0 2 B0 3
A1 4 B1 5
A2 6 B2 7
A3 8 B3 9
A4 11 B4 12
A5 13 B5 14
A6 15 B6 16
A7 17 B7 18 IA=B 1
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
© 2019 Integrated Device Technology, Inc.
1
19 OA=B
MAY 2019
DSC-2572/16
74FCT521AT/CT FAST
CMOS 8-BIT IDENTITY COMPARATOR
PIN CONFIGURATION
IA=B A0 B0 A1 B1 A2 B2 A3 B3
GND
1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11
TOP VIEW
VCC OA=B B7 A7 B6 A6 B5 A5 B4 A4
Package Type QSOP SOIC
Package Code PCG20 PSG20
Order Code QG SOG
INDUSTRIALTEMPERATURERANGE
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Description
Max Unit
VTERM(2) VTERM(3) TSTG IOUT
Terminal Volt...
