A1020B-1PL44I

Field Programmable Gate Array Overview

The A1020B-1PL44I is an ACT™ 1 series Field Programmable Gate Array (FPGA) manufactured by Microsemi Corporation. It features a logic density of 2000 gates and contains 547 Configurable Logic Blocks (CLBs). The device provides 34 general-purpose I/O pins and is housed in a 44-pin PLCC package with J-leads. It operates on a single 5V supply voltage within the range of 4.5V to 5.5V. The component is rated for commercial temperature operation from 0°C to 70°C. This specific part number indicates the industrial speed grade variant, although standard documentation typically lists the commercial grade (A1020B-1PL44C); verification of the 'I' suffix functionality against official datasheets is required.

Field Programmable Gate Array Feature Summary

• ACT™ 1 architecture providing high-density programmable logic in a compact form factor
• CMOS technology enabling low power consumption and high-speed operation
• In-system programmability allowing field updates without removal from the board

Field Programmable Gate Array Applications

• Complex digital logic replacement in embedded systems
• Protocol conversion and interface bridging between different bus standards
• Custom state machine implementation for industrial control applications

Field Programmable Gate Array Procurement Notes

Verify the existence of the specific 'I' (Industrial) suffix variant against the official Microsemi ACT 1 datasheet, as standard listings often default to the 'C' (Commercial) grade. Confirm end-of-life status and last-time-buy dates through authorized distributors. Ensure compatibility with legacy programming tools such as Libero or older Actel design suites. Check for RoHS compliance history given the product's age and discontinuation timeline.

Field Programmable Gate Array Selection Notes

Select this component when a moderate logic density of 2000 gates is sufficient for the design requirements. Compare pin counts against alternative packages like the 68-pin or 84-pin variants if more I/O resources are needed. Consider the operating temperature range; ensure the commercial grade meets environmental constraints or verify if an industrial grade version exists. Evaluate the 44-pin PLCC footprint against available PCB space and mounting preferences.

Field Programmable Gate Array Part Context

This device belongs to the Microsemi ACT™ 1 family, a line of CMOS FPGAs known for their reliability and ease of use. The ACT 1 series was widely adopted for prototyping and low-volume production before being succeeded by higher-density families. The A1020 model represents a mid-range option within this series, balancing resource availability with package size constraints.

Field Programmable Gate Array Replacement Considerations

Direct pin-to-pin replacements may be limited due to the discontinued status of the ACT 1 series. Review Microsemi's successor families, such as the IGLOO or ProASIC3L, for functional equivalents. Note that migration may require redesigning the logic structure and updating the programming software environment.