A1020B-PLG44C

Field Programmable Gate Array Overview

The A1020B-PLG44C is an ACT™ 1 Field Programmable Gate Array (FPGA) manufactured by Microsemi Corporation. It features a logic density of 2000 equivalent gates organized into 547 Configurable Logic Blocks (CLBs). The device provides 34 user-accessible I/O pins and is housed in a 44-pin Plastic Leadless Chip Carrier (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.

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 performance
• In-system programmability allowing design updates without removing the device from the circuit

Field Programmable Gate Array Applications

• High-performance digital signal processing systems
• Custom ASIC prototyping and verification
• Complex glue logic replacement in embedded designs

Field Programmable Gate Array Procurement Notes

This specific part number, A1020B-PLG44C, is listed as obsolete or discontinued by the manufacturer. Verification of availability requires checking authorized distributors for remaining stock or approved second-source alternatives. Ensure that any sourced units are genuine Microsemi products and verify the date code against current reliability standards before integration into production.

Field Programmable Gate Array Selection Notes

When selecting this FPGA, consider the 44-pin PLCC package constraints and the 34 available I/Os. The ACT™ 1 series supports mixed-voltage I/Os, but the core voltage remains at 5V. Designers should account for the 0°C to 70°C operating temperature range. If industrial temperature ratings (-40°C to 85°C) are required, variants such as the A1020B-1PLG44I may be more appropriate, though availability varies.

Field Programmable Gate Array Part Context

The A1020B-PLG44C belongs to the Microsemi ACT™ 1 family, which was designed as a high-capacity alternative to complex PALs and GALs. This series utilizes CMOS SRAM-based technology, offering non-volatile configuration when paired with external memory. The ACT™ 1 devices were widely used in telecommunications and industrial control applications prior to the dominance of modern high-density FPGAs.

Field Programmable Gate Array Replacement Considerations

Direct pin-to-pin replacements may not exist due to the obsolescence of the ACT™ 1 family. Potential substitutes include other Microsemi SmartFusion or IGLOO series devices, though these require significant schematic and layout redesigns. Cross-reference tools should be used to identify functionally equivalent parts with similar gate counts and I/O configurations.