A54SX16P-1TQG144

Overview

The A54SX16P-1TQG144 is a Field Programmable Gate Array from the Actel SX-A family, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 24,000 system gates and contains 1,452 configurable logic blocks (CLBs). The device supports up to 350 MHz internal performance with a typical system frequency of 250 MHz. It features 113 user-programmable I/Os and up to 2,012 dedicated flip-flops. Packaged in a 144-pin Thin Quad Flat Pack (TQFP), it operates within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent low-impedance connections.
• Supports mixed-voltage operation including 2.5 V, 3.3 V, and 5 V I/O standards with 5 V input tolerance and drive strength.
• Hot-swap compliant I/Os allowing power-up/down without voltage sequencing requirements or damage to the host system.
• Includes deterministic timing architecture with DirectConnect and FastConnect routing resources for predictable signal propagation.

Applications

• 66 MHz PCI compliant designs
• High-performance state machines and fast counters
• Data path logic requiring deterministic timing

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type, speed grade, and temperature range. Confirm RoHS compliance status and lead-free packaging details directly with the supplier or authorized distributor prior to purchase.

Selection Notes

Select this component for applications requiring nonvolatile configuration without external memory. Ensure the design utilizes the available global clock networks (HCLK, CLKA, CLKB) and considers the 100% pin-locking capability for PCB development. Verify that the 113 available I/Os meet the interface requirements.

Part Context

This part belongs to the Actel SX-A FPGA family, which offers high-density logic in a cost-effective single-chip format. The SX-A series is characterized by its antifuse technology, providing robust security against reverse engineering and eliminating the need for configuration bitstreams at power-up.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's obsolescence notices or cross-reference guides for legacy replacements if this specific speed grade or package is discontinued.

FAQ

How does the SX-A architecture ensure security against reverse engineering?

Reverse engineering is difficult because programmed and unprogrammed antifuses are hard to distinguish. Additionally, FuseLock™ technology prevents unauthorized reading of the device contents and includes hidden security fuses that protect against invasive attacks.

What are the hot-swap capabilities of the A54SX16P-1TQG144?

The I/Os are configured to be hot-swappable (except for 3.3 V PCI). During power-up or down, all I/Os tristate, and supply voltages do not require sequencing. The device outputs remain high impedance until normal operating conditions are reached.

What routing resources are available for fast interconnection?

The device features DirectConnect for horizontal routing within SuperClusters with less than 0.1 ns delay, and FastConnect for routing between any two modules within a SuperCluster with a maximum delay of 0.3 ns.