A54SX16P-2TQG176I

The A54SX16P-2TQG176I is a nonvolatile SX-A family FPGA in a 176-pin LQFP-class package. It provides 24,000 system gates and approximately 1,452 logic elements for implementing custom digital logic, with up to 147 user I/O pins for board-level interfacing.

Designed for mixed-voltage systems, the device supports 2.5 V, 3.3 V and 5 V operation with 5 V input tolerance and drive capability. Combined with industrial temperature operation and single-chip nonvolatile configuration, it targets embedded and industrial applications that require deterministic timing and flexible I/O.

Key Features

• Core Capacity  24,000 system gates and roughly 1,452 logic elements (combinatorial cells and registers) for mid-density logic integration.
• Performance  SX-A family performance characteristics include up to 250 MHz system performance and up to 350 MHz internal performance.
• I/O Flexibility  Up to 147 user-programmable I/Os with configurable I/O support for 5 V TTL, 3.3 V LVTTL, and 2.5 V LVCMOS2; I/Os are hot-swap compliant and include configurable weak pull-up/pull-down on power-up.
• Nonvolatile Single-Chip Configuration  Nonvolatile, single-chip architecture eliminates the need for external configuration memory and supports secure programming options.
• Mixed-Voltage and 5 V Tolerance  Supports mixed-voltage operation across 2.5 V, 3.3 V and 5 V domains with 5 V input tolerance and 5 V drive strength where supported.
• Package and Mounting  Surface-mount package case: 176-LQFP; supplier device package listed as 176-TQFP (24×24), suitable for compact PCB layouts.
• Power Supply and Thermal  Wide supply range: 3 V to 5.5 V; industrial temperature grade with operating range −40°C to +85°C.
• System and Testability  Boundary-scan testing (IEEE 1149.1/JTAG) and in-system diagnostic capabilities are part of the SX-A feature set.
• Security  Actel Secure Programming Technology with FuseLock™ to protect configuration and prevent reverse engineering.
• Memory  No on-chip RAM bits are included; logic resources are optimized for flip-flop and combinatorial implementations.

Typical Applications

• Industrial Control  Implements deterministic control logic and interface bridging in motor control, PLCs, and factory automation, benefiting from industrial temperature rating and mixed-voltage I/O support.
• Embedded Systems  Provides mid-density programmable logic for custom peripheral interfaces, glue logic, and protocol adaptation in compact embedded platforms.
• Legacy and Mixed-Voltage Interface  Serves as a voltage-domain translator and protocol adapter where 5 V tolerance and multiple I/O voltage standards are required.
• PCI and Bus Logic  Suitable for implementing bus interfacing and control logic in designs that require PCI-compliant signaling (66 MHz PCI support in the SX-A family).

Unique Advantages

• Nonvolatile, Single-Chip Solution:  Eliminates external configuration memory and simplifies board-level BOM and boot sequencing.
• Mixed-Voltage I/O with 5 V Tolerance:  Eases integration with legacy 5 V systems while supporting modern 2.5 V/3.3 V domains.
• Secure Programming:  FuseLock™-based security protects IP and prevents reverse engineering of the programmed design.
• Deterministic Timing:  User-controllable timing characteristics provide predictable behavior for time-critical control and interface logic.
• Industrial Ruggedness:  Rated for −40°C to +85°C operation, making it suitable for a wide range of industrial environments.
• Compact Package Options:  176-pin LQFP/TQFP packaging provides a balance of I/O density and PCB footprint for space-constrained designs.

Why Choose A54SX16P-2TQG176I?

The A54SX16P-2TQG176I delivers a balanced mid-density FPGA solution with 24,000 system gates and about 1,452 logic elements, built on the SX-A family architecture. Its nonvolatile single-chip configuration, secure programming, and deterministic timing make it a practical choice for embedded and industrial designs that require reliable boot behavior and IP protection.

With broad I/O flexibility, 5 V tolerance, and industrial temperature rating, this device suits mixed-voltage systems, protocol conversion, and interface logic where predictable performance and long-term robustness are required. The package options and power supply range provide straightforward integration into existing PCB designs while reducing external components.

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