Renesas 74FCT521ATSOG Comparators Logic
IC COMPARATOR IDENTITY 8B 20SOIC

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
74FCT521ATSOG
Detailed Description
IC COMPARATOR IDENTITY 8B 20SOIC
Package
20-SOIC (0.295", 7.50mm Width)
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
74FCT521ATSOG Datasheet
Quick Jump:
Technical Specifications
Renesas 74FCT521ATSOG Comparators Logic technical specifications.
General
Package / Case
20-SOIC
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Supply Voltage
4.75V ~ 5.25V
Type
Identity Comparator
Output
Active Low
Number of Bits
8
Current Output High Low
15mA, 48mA
Output Function
A=B
Max Propagation Delay V Max Cl
7.2ns @ 5V, 50pF
Alternate Parts Comparison (74FCT521ATSOG vs SN74ALS518N vs SN74LS85DR vs DM74ALS521WMX)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 20-SOIC | 20-DIP | 16-SOIC | 20-SOIC |
| Mounting Type | Surface Mount | Through Hole | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Supply Voltage | 4.75V ~ 5.25V | 4.5V ~ 5.5V | 4.75V ~ 5.25V | 4.5V ~ 5.5V |
| Current Output High Low | 15mA, 48mA | 100µA, 24mA | 400µA, 8mA | 2.6mA, 24mA |
| Max Propagation Delay V Max Cl | 7.2ns @ 5V, 50pF | 33ns @ 5V, 50pF | 45ns @ 5V, 15pF | 20ns @ 5V, 50pF |
| Number of Bits | 8 | 8 | 4 | 8 |
| Output | Active Low | Active High | Active High | Active Low |
| Output Function | A=B | A=B | A<B, A=B, A>B | A=B |
| Type | Identity Comparator | Identity Comparator | Magnitude Comparator | Identity Comparator |
| Lifecycle Status | -- | Active | Active | Obsolete |
| Package | -- | 20-DIP (0.300", 7.62mm) | 16-SOIC (0.154", 3.90mm Width) | 20-SOIC (0.295", 7.50mm Width) |
| Action |
More Parts in Logic Comparators
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.