A1020B-2PL68I

Field Programmable Gate Array Overview

The A1020B-2PL68I is an ACT™ 1 series Field Programmable Gate Array (FPGA) manufactured by Microsemi Corporation. It features 547 Configurable Logic Blocks (CLBs) and approximately 2000 system gates. The device supports up to 57 user-programmable I/O pins and operates on a single 5V supply voltage within the 4.5V to 5.5V range. It is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package with J-leads, designed for surface-mount installation. The component is rated for industrial temperature operation from -40°C to +85°C.

Field Programmable Gate Array Feature Summary

• Provides high-density programmable logic using Flash-based non-volatile technology for instant-on functionality without external configuration memory.
• Supports mixed-voltage I/O operations, allowing compatibility with both 3.3V and 5.5V signaling standards while maintaining a 5V core.
• Integrates fast wide-decode circuitry to accelerate address decoding and control signal generation within complex digital designs.

Field Programmable Gate Array Applications

• Replacement of legacy GALs and PLDs in industrial control systems requiring non-volatile reprogrammability.
• Implementation of glue logic and protocol conversion interfaces in embedded communication hardware.
• Custom state machine and finite state machine implementations in automotive electronic control units.

Field Programmable Gate Array Procurement Notes

This specific part number has been officially discontinued by the manufacturer as per Product Change Notification records dated June 21, 2013. Verification of availability should focus on surplus distributors or authorized stockists holding legacy inventory. Buyers must confirm the physical condition and authenticity of components sourced from secondary markets due to the end-of-life status.

Field Programmable Gate Array Selection Notes

Engineers selecting this component should verify that the 68-pin PLCC footprint matches the existing PCB layout, as alternative packages like QFP or LCC require schematic and layout modifications. The fixed 5V core voltage limits direct integration with low-voltage 1.8V or 3.3V logic domains without level shifting. Designers should also account for the limited I/O count compared to modern FPGA families when estimating resource utilization.

Field Programmable Gate Array Part Context

The A1020B-2PL68I belongs to the ACT™ 1 family, which utilizes antifuse or Flash-based technology distinct from SRAM-based FPGAs. This family was widely adopted for its robustness against radiation and single-event upsets, making it suitable for military and aerospace applications. The '2' suffix typically denotes a specific speed grade within the product line, ensuring timing compliance for higher-frequency synchronous designs.

Field Programmable Gate Array Replacement Considerations

Direct pin-to-pin replacements are not available in current production lines. Equivalent functionality may be achieved through Microsemi's IGLOO or ProASIC3L families, though these require adapter boards or redesign. Legacy equivalents from other vendors such as Lattice Semiconductor's ispMACH 4000ZE series may offer similar gate counts but differ in packaging and programming methodologies.