AMPAL22P10BJC

Overview

The AMPAL22P10BJC is a Programmable Array Logic (PAL) device belonging to the PAL22V10 family, manufactured by Advanced Micro Devices. It features a complex PAL architecture with 22 input lines and 10 registered output lines. The component utilizes TTL-compatible inputs and supports high-speed logic operations with a maximum clock frequency of 40 MHz. Designed for industrial temperature ranges, it operates reliably between -55 °C and +85 °C. The device is housed in a 28-pin PLCC package, providing a compact solution for implementing fixed-function or user-defined combinational and sequential logic circuits in digital systems.

Feature Summary

• Complex PAL architecture with 22 dedicated inputs and 10 registered outputs
• TTL-compatible input levels for direct interfacing with standard logic families
• Industrial operating temperature range from -55 °C to +85 °C
• High-speed performance with a maximum clock frequency of 40 MHz

Applications

• Implementation of complex state machines and control logic
• Address decoding and memory interface logic in embedded systems
• Signal routing and protocol conversion in digital communication hardware
• Replacement for legacy discrete logic gates in industrial equipment

Part Context

This part belongs to the AMD PAL22V10 series, which provides a versatile platform for replacing small-scale integration (SSI) and medium-scale integration (MSI) logic chips. The registered output configuration allows for synchronous design methodologies, making it suitable for timing-critical applications where output synchronization is required. The 28-pin PLCC package facilitates surface-mount assembly while maintaining compatibility with through-hole design practices common in older industrial standards.

Replacement Considerations

Direct pin-to-pin replacements within the PAL22V10 family include variants such as the AMPAL22V10BCJ or AMPAL22V10DCJ, depending on specific speed grades and package requirements. When substituting, verify that the new device's propagation delay meets the system's timing constraints and that the programming toolchain supports the target device's fuse map. Ensure the replacement maintains the same voltage supply specifications and output drive capabilities.