Renesas 74FCT521ATSOG
$ 1.59
Production
Price and Stock
Authorized Distributors
Non-Authorized Stocking Distributors
Non-Authorized Dealers
| Distributor | SKU | Min | Pkg | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Renesas | 74FCT521ATSOG | 362 | 1 | Tube | 14h | |||||||
| DigiKey | 800-2175-ND | 362 | 1 | Tube | ||||||||
| Avnet | 74FCT521ATSOG | 0 | 370 | 18h | ||||||||
| Future Electronics | 74FCT521ATSOG | 0 | 37 | Tube | ||||||||
| Farnell | 74FCT521ATSOG | 0 | 370 | 15h |
Inventory History
3 month trend: -14.30%
CAD Models
Download symbol, footprint, and 3D STEP
Alternate Parts
0 parts available
CAD Models
Pin Table
Number
Category
Display Name & Functions
Model Info
| Sourced by | Renesas |
|---|---|
| Date of Release | Sep 26, 2025 |
| IPC Compliant | IPC-7351B |
| Style Guide Revision | Version 1.0 - Nov 1, 2024 |
| Datasheet Source | Version - Feb 11, 2020 |
Verification
Based on the style guide and datasheet for this part, three independent electronics engineering experts created:
- 3 versions of the symbol and 2D footprint
- 1 version of the 3D STEP model (STEP format AP-214)
- A colour palette configuration for a manufacturer
All created library files are layer-mapping agnostic and can be easily mapped to your design.
Created symbols and footprints are then compared using the following checks:
Symbol
Automated Checks
- Part number
- Key parameters
- Package code
- Pin names/numbers
- Pin types
Manual Checks
- Pin organization per style guide
Footprint
Automated Checks
- IPC standard
- Silkscreen clearance
- Courtyard excess
- Package outline
- Polarity marking
- Pad size & position verification
3D STEP Model
Manual Checks
- Dimension verification
- Colour palette compliance
- Format compliance
- Mapping orientation to 2D footprint
- Position verification to 2D footprint
A final verification process is performed:
If symbols and footprints match: The part is verified as ECAD Ready
If symbols and footprints don’t match: A Senior Electronics Engineer will review all differences to ensure the part meets the style guide and datasheet requirements
Supply Chain
Country of OriginTaiwan
Export Control Classification Number (ECCN) CodeEAR99
Harmonized Tariff Schedule (HTS) Code8540000000
Introduction Date1988-01-01
Lifecycle StatusProduction (Last Updated: 2 months ago)
Manufacturer Lifecycle StatusACTIVE (Last Updated: 2 months ago)
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Descriptions
Descriptions of Renesas 74FCT521ATSOG provided by its distributors.
Identity Comparator, FCT Series, 8-Bit, Inverted Output, CMOS, PDSO20
Lead Free Inverting CMOS GULL WING (Type) 85C 5.25V 50pF 7.6mm
8 4.75V 5.25V SOIC-20 12.8mm*7.6mm*2.34mm
Logic Comparators 8-Bit Identity Comparator
IC COMPARATOR IDENTITY 8B 20SOIC
SOP-20-300mil Comparators ROHS
Manufacturer Aliases
Renesas has several brands around the world that distributors may use as alternate names. Renesas may also be known as the following names:
- Renesas Electronics
- Renesas Electronics America Inc
- Renesas Electronics America
- RENESA
- REN
- RENES
- RENESAS TECHNOLOGY CORP
- RENESAS TECHNOLOGY
- Renesas Electronics Corporation
- RENESAS ELECTRONICS CORP
- RENSAS
- RENASAS
- Renesas / Intersil
- RNS
- RENESAS-PB
- RENESASTEC
- RENESES
- Renesas Technology America
- Renesas Design Germany GmbH
- Renesas / IDT
- RENESASE
- RENESAS TECHNOLOGY HONG KONG
- Renesas Electronics Operations Services Limited
- RENEASAS
- RENESAS/M
Inventory History
3 month trend: -14.30%
CAD Models
Download symbol, footprint, and 3D STEP
Alternate Parts
0 parts available
Technical Specifications
Physical
Case/PackageSOIC
Contact PlatingTin
MSL1
MountSurface Mount
Number of Pins20
Number of Terminals20
Technical
Part Family74FCT521T
High Level Output Current48 mA
Load Capacitance50 pF
Low Level Output Current48 mA
Max Operating Temperature85 °C
Max Supply Current4.5 mA
Max Supply Voltage5.25 V
Min Operating Temperature-40 °C
Min Supply Voltage4.75 V
Number of Bits8
Number of Channels8
Number of Circuits1
Operating Supply Voltage5 V
Package Quantity0
PolarityInverting
Propagation Delay7.2 ns
Quiescent Current10 µA
Temperature GradeIndustrial
Turn-On Delay Time7.2 ns
Dimensions
Height2.34 mm
Height - Seated (Max)2.65 mm
Length12.8 mm
Pitch1.27 mm
Terminal Pitch1.27 mm
Thickness2.34 mm
Width7.6 mm
Documents
Download datasheets and manufacturer documentation for Renesas 74FCT521ATSOG.
Official Datasheet6 years ago
Compliance
Environmental Classification
China RoHSCompliant
Lead FreeLead Free
REACH SVHCYes
RoHSCompliant
Compliance Statements