A54SX16-TQ176I

Overview

The A54SX16-TQ176I is a Field Programmable Gate Array from the Actel SX-A family, featuring 24,000 system gates and 1,452 configurable logic blocks. It utilizes 0.22 μm / 0.25 μm CMOS antifuse technology to deliver up to 350 MHz internal performance. The device operates within an industrial temperature range of -40°C to +85°C and supports mixed-voltage I/O standards including 2.5 V, 3.3 V, and 5 V. Packaged in a 176-pin Thin Quad Flat Pack (TQFP), it provides up to 147 user-programmable I/O pins.

Feature Summary

• Supports hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements.
• Features deterministic timing with unique DirectConnect and FastConnect routing resources for predictable signal propagation.
• Includes IEEE 1149.1 Boundary-Scan Testing capabilities for superior diagnostic and verification during manufacturing.
• Provides nonvolatile single-chip security through FuseLock technology to prevent reverse engineering.

Applications

• High-performance digital logic integration requiring deterministic timing
• Industrial control systems operating in extended temperature environments
• PCI-compliant interface designs supporting 66 MHz bus speeds

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature grade. Ensure compatibility with existing design tools such as Actel Designer for programming and configuration. Check for any product discontinuance notifications or lifecycle status updates prior to finalizing procurement plans.

Selection Notes

Select this component when a robust antifuse FPGA solution is required for industrial applications. Consider the 176-pin TQFP package constraints regarding board space and thermal dissipation. Evaluate the available user I/O count against system interface requirements to ensure sufficient pin utilization for the target design complexity.

Part Context

This part belongs to the Actel SX-A family of FPGAs, which are characterized by their metal-to-metal programmable antifuse interconnects. The family offers various gate counts ranging from 12,000 to 108,000 system gates across different device models, providing scalable solutions for diverse logic density needs.

Replacement Considerations

Direct replacements may include other speed grades within the A54SX16A series, such as A54SX16A-1TQ176I or A54SX16A-2TQ176I, provided they are available. Verify that alternative packages like PQFP or FBGA variants maintain physical footprint compatibility if PCB redesign is not permitted.

FAQ

What is the maximum internal clock frequency supported by the A54SX16-TQ176I?

The A54SX16-TQ176I supports internal clock frequencies up to 350 MHz, enabling high-speed execution of complex logic functions.

Does the A54SX16-TQ176I support hot-swapping?

Yes, the device features hot-swap compliant I/Os, allowing it to be plugged into an electrically active system without degrading reliability or causing damage, except for 3.3 V PCI configurations.

How many global clocks are available on the A54SX16-TQ176I?

The A54SX16-TQ176I includes three global clock networks: one hardwired clock (HCLK) and two routed global clocks (CLKA and CLKB).