Overview
Description
The IDT74FCT521T is an 8-bit identity comparator that 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 IA = B also serves as an active low enable input. The 74FCT521T operates at -40 °C to +85 °C.
Features
- A and C speeds
- 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 20-pin SOIC and QSOP packages
Comparison
Applications
Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| QSOP | 20 | C | Yes | Tube | 1 | 1.614 | Get Samples, | |
| QSOP | 20 | C | Yes | Reel | 1 | 1.547 | ||
| SOIC | 20 | C | Yes | Tube | 1 | 1.591 | Get Samples, | |
| SOIC | 20 | C | Yes | Reel | 1 | 1.547 | ||
| QSOP | 20 | C | Yes | Tube | 1 | 1.614 | Get Samples, | |
| SOIC | 20 | C | Yes | Reel | 1 | 1.547 |
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