A3P400-1FG256

Field Programmable Gate Array Overview

The A3P400-1FG256 is a ProASIC3 Flash Field Programmable Gate Array manufactured by Microchip Technology. It features 400,000 system gates and supports up to 178 user I/Os within a 256-pin FBGA package. The device operates on a core voltage ranging from 1.425 V to 1.575 V and supports mixed-voltage I/O standards including 1.5 V, 1.8 V, 2.5 V, and 3.3 V. It offers a maximum operating frequency of 310 MHz and includes embedded SRAM for configuration storage. The component is designed for surface-mount installation and functions across an industrial temperature range.

Field Programmable Gate Array Feature Summary

• Flash-based non-volatile architecture enabling instant-on functionality without external configuration memory.
• Supports mixed-voltage I/O banks allowing operation with multiple logic levels simultaneously.
• Includes configurable clocking blocks with integrated phase-shift and multiply/divide capabilities.
• Provides IEEE 1149.1 JTAG boundary scan support for manufacturing test and debugging.

Field Programmable Gate Array Applications

• Industrial control systems requiring deterministic boot-up sequences.
• Telecommunications infrastructure utilizing LVDS signaling for high-speed data transmission.
• Automotive electronics needing robust flash-based programmability.
• Test and measurement equipment requiring flexible digital logic reconfiguration.

Field Programmable Gate Array Procurement Notes

Verify the specific suffix designation against official Microchip documentation, as variations such as -1 or -2 indicate different speed grades. Confirm RoHS compliance status directly with the manufacturer, as historical batches may differ. Ensure the ordering quantity aligns with standard factory packaging requirements to avoid handling fees. Request current production lifecycle status to confirm availability for long-term deployment.

Field Programmable Gate Array Selection Notes

Select this model when instant-on capability is critical to eliminate external configuration EEPROMs. Compare gate density and I/O count against higher-tier ProASIC3 variants if additional logic resources are required. Verify that the 256-pin FBGA footprint matches the target PCB layout constraints. Ensure the design accommodates the specific power supply sequencing required for the 1.5 V core and selected I/O voltages.

Field Programmable Gate Array Part Context

This component belongs to the Microchip ProASIC3 family, which bridges the gap between ASICs and traditional FPGAs by offering flash-based non-volatility. The A3P400 variant provides mid-range capacity suitable for complex digital logic applications. It serves as a pin-compatible alternative to previous Actel FPGA generations, maintaining software compatibility while enhancing performance and reducing power consumption.

Field Programmable Gate Array Replacement Considerations

Direct pin-compatible substitutes within the same package include other members of the A3P300, A3P600, or M1A3P400 series, provided logic resource requirements are met. Cross-family replacements from Actel or Lattice may require significant schematic and layout modifications due to architectural differences.