74ACT520PC

Overview

The onsemi 74ACT520PC is an 8-bit identity comparator integrated circuit belonging to the 74ACT logic family. It features a 20-pin Dual In-Line Package (DIP) with a standard 0.300-inch (7.62mm) width. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a commercial operating temperature range from -40°C to +85°C. Designed for high-speed digital applications, it provides parallel data comparison functionality suitable for system monitoring and address decoding tasks.

Feature Summary

• Performs parallel comparison of two 8-bit binary words
• Outputs active-high signal when input data patterns are identical
• Compatible with standard TTL logic input levels

Applications

• Digital system address matching
• Data integrity verification in bus architectures
• Comparator circuits in industrial control systems

Procurement Notes

Verify the package type matches the required 20-DIP specification. Confirm the logic family designation is ACT for 5V operation compatibility. Check RoHS compliance status if environmental regulations apply to the end product. Ensure the supplier source is authorized to guarantee component authenticity and traceability.

Selection Notes

Select this component when an 8-bit equality check is required in a 5V logic environment. The DIP package is suitable for prototyping or through-hole manufacturing processes. Consider pin count and propagation delay characteristics relative to system timing requirements before finalizing the design integration.

Part Context

This part belongs to the 74ACT series of high-speed CMOS logic devices manufactured by onsemi. The series offers performance comparable to low-power Schottky TTL but with lower power consumption. Identity comparators like this model are essential building blocks for digital decision-making circuits requiring precise data matching.

Replacement Considerations

Cross-reference with other manufacturers' 74ACT520 equivalents ensuring identical pinout and electrical specifications. Verify that substitute parts maintain the same 20-DIP footprint and 5V operating voltage constraints.