onsemi 74ACT521PC
Obsolete
Supply Chain
Harmonized Tariff Schedule (HTS) Code8542.39.00.60
Introduction Date1987-07-01
Lifecycle StatusObsolete (Last Updated: 4 months ago)
Descriptions
Descriptions of onsemi 74ACT521PC provided by its distributors.
Identity Comparator, AC Series, 8-Bit, Inverted Output, CMOS, PDIP20
Identity Comparator 8-Bit 20-Pin PDIP W Rail
Fact AC/ACT CMOS Logic 8-Bit Identity Comp
IDENTITY COMPARATOR 8BIT 20PDIP W
IC COMPARATOR IDENTITY 8B 20DIP
Comparator Logic IC; Logic Type:Comparator; Logic Family:ACT; Logic Base Number:74521; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Package/Case:20-DIP; No. of Pins:20; Operating Temperature Range:-40°C to +85°C ;RoHS Compliant: Yes
The AC/ACT521 is an expandable 8-bit comparator. It compares 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#A = B also serves as an active LOW enable input. Product Highlights: ICC reduced by 50% Compares two 8-bit words in 6.5 ns typ Expandable to any word length 20-pin package Outputs source/sink 24 mA ACT521 has TTL-compatible inputs
Manufacturer Aliases
onsemi has several brands around the world that distributors may use as alternate names. onsemi may also be known as the following names:
- ON Semiconductor
- ONS
- ONSEMICON
- ON SEM
- ON SEMICONDUCTO
- ON SEMICONDUCTORS
- ONSEMIC
- ON Semicondu
- OSC
- ONSE
- ON SEMICOND
- ON Semiconductor / Fairchild
- SCG
- ON Semiconductor Cor
- ON SEMICO
- ONSM
- ON SEMICONDUCTOR CORP
- onsemi / Fairchild
- MOT/ON SEMI
- Fairchild/ONSemiconductor
- ON Semiconductor Corporation
- ON4
- ON Semi - ON Semiconductor
- ON SEMICONDUCT
- ON-SEMI SCG
- ON Semiconductor Inc.
- onsemiconductor
- On Semiconductor Ltd
Technical Specifications
Physical
Case/PackageDIP
MountThrough Hole
Number of Pins20
Number of Terminals20
Technical
High Level Output Current24 mA
Low Level Output Current24 mA
Max Operating Temperature85 °C
Max Supply Current50 mA
Max Supply Voltage5.5 V
Min Operating Temperature-40 °C
Min Supply Voltage4.5 V
Number of Bits8
Number of Circuits1
Operating Supply Voltage5 V
PolarityInverting
Propagation Delay11 ns
Quiescent Current4 µA
Temperature GradeIndustrial
Turn-On Delay Time10 ns
Dimensions
Height - Seated (Max)5.08 mm
Length24.895 mm
Terminal Pitch2.54 mm
Width7.62 mm