A54SX16-1TQG176I

The A54SX16-1TQG176I is a nonvolatile SX-family FPGA from Microchip Technology offered in a 176-pin LQFP package. It delivers approximately 24,000 system gates and 1,452 logic elements with 147 user I/O pins, making it suitable for mixed‑voltage interfacing and embedded logic integration.

Designed for industrial environments, this device supports wide supply voltages (3 V to 5.5 V), operates from –40 °C to +85 °C, and provides features such as deterministic timing, in-system diagnostics, and secure programming to address applications requiring reliable, configurable logic and robust I/O flexibility.

Key Features

• Core Performance  Up to 250 MHz system performance and up to 350 MHz internal performance as specified for the SX-A family devices.
• Logic Capacity  Approximately 24,000 system gates and 1,452 logic elements for mid-density logic integration.
• I/O and Voltage Flexibility  147 user I/Os with configurable support for 3.3 V / 5 V PCI, 5 V TTL, 3.3 V LVTTL, and 2.5 V LVCMOS2. Supports mixed-voltage operation (2.5 V, 3.3 V, 5 V) with 5 V input tolerance and 5 V drive strength.
• Nonvolatile, Single‑Chip Configuration  Nonvolatile single-chip architecture eliminates the need for external configuration memory and simplifies power-up sequencing.
• System Reliability & Test  Hot-swap compliant I/Os, power-up/power-down friendly behavior, and boundary-scan testing in compliance with IEEE 1149.1 (JTAG).
• Security & Diagnostics  Actel Secure Programming technology with FuseLock for protection against reverse engineering, plus in-system diagnostic and verification capability using Silicon Explorer II.
• Package & Environmental  176-LQFP surface-mount package (supplier package: 176-TQFP 24×24). Industrial temperature grade with an operating range of –40 °C to +85 °C and RoHS compliance.

Typical Applications

• PCI and Legacy Bus Interfaces  Configurable I/O and 3.3 V/5 V PCI support enable use in bridging and interface logic for PCI-compliant systems.
• Industrial Control and Automation  Deterministic, user-controllable timing and industrial temperature rating suit control logic, motion control, and deterministic I/O processing.
• Secure Embedded Systems  Nonvolatile configuration and FuseLock secure programming help protect intellectual property in deployed systems.
• Board-level Diagnostics and Test  Boundary-scan (IEEE 1149.1) and in-system diagnostic capabilities support manufacturing test and field verification workflows.

Unique Advantages

• Highly flexible I/O  147 user I/Os with mixed-voltage support and 5 V tolerance reduce level-shifting needs and simplify board-level integration.
• Nonvolatile single-chip solution  Eliminates external configuration memory, reducing BOM and simplifying system initialization.
• Industrial-rated operation  Specified operation from –40 °C to +85 °C suits deployments in industrial environments.
• Security built in  FuseLock programming provides a hardware-level option to protect design confidentiality and deter reverse engineering.
• Testability and diagnostics  JTAG boundary-scan and Silicon Explorer II diagnostic support streamline development, testing, and in-field verification.
• Compact surface-mount package  176-LQFP (surface mount) enables compact board designs while providing a substantial I/O count for interface-dense applications.

Why Choose A54SX16-1TQG176I?

The A54SX16-1TQG176I combines mid-range logic capacity with extensive I/O flexibility and nonvolatile configuration in a single 176-pin LQFP package. Its SX-family performance characteristics—deterministic timing, hot-swap compliant I/Os, and secure programming—address the needs of industrial and embedded applications that require reliable, configurable logic and robust system-level features.

With industrial temperature grading, wide supply voltage support (3 V to 5.5 V), and built-in diagnostics and testability, this device suits engineers building mixed-voltage interfaces, PCI-compatible logic, and secure embedded subsystems that demand predictable timing and production-ready test capabilities.

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