A54SX16P-1VQG100I - 16K Gate FPGA, 280MHz, VQFP-100 | Microsemi
MPN: A54SX16P-1VQG100I ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1913.74 | $1,913.74 |
| 10 | $1896.34 | $18,963.40 |
| 25 | $1887.64 | $47,191.00 |
| 50 | $1878.94 | $93,947.00 |
| 100 | $1870.24 | $187,024.00 |
Drop-in alternatives for A54SX16P-1VQG100I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX16P-2VQG100I
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View Datasheet →A54SX16P-VQG100
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View Datasheet →A54SX16P-1VQG100
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View Datasheet →A54SX16P-1VQG100I Maximum Ratings & Electrical Characteristics
| Family | Actel SX (A54SX16P) |
| System Gates | 16,000 |
| Logic Cells | 924 |
| Logic Modules (CLBs) | 1452 |
| Maximum Clock Frequency | 280 MHz |
| Process Technology | 0.35 um CMOS (antifuse) |
| I/O Voltage | 3.3 V / 5 V |
| User I/O | 81 |
| Speed Grade | -1 |
| Package | 100-Pin VQFP (TQFP-100), 0.50 mm pitch |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) |
| Programming Type | One-Time Programmable (antifuse) |
| Configuration Retention | Non-volatile, instant-on at power-up |
A54SX16P-1VQG100I 100-pin vqfp (tqfp-100), 0.50 mm pitch Pin Configuration Guide
Complete pinout information for A54SX16P-1VQG100I (100-pin vqfp (tqfp-100), 0.50 mm pitch package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for A54SX16P-1VQG100I.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
A54SX16P-1VQG100I is suitable for 6 applications: Industrial Automation and Motor Control Interfaces, Aerospace and Defense Subsystem Logic, Legacy 5V System Retrofits and Obsolescence Management, Communications and Interface Bridge Logic, Test and Measurement Instrument Logic, Secure Fixed-Function Control in IoT Infrastructure.
Industrial Automation and Motor Control Interfaces
The A54SX16P-1VQG100I fits industrial control boards that need deterministic, glue-free interface logic between processors, encoders, and power stages. Its 280 MHz maximum toggle rate comfortably covers PWM generation, quadrature decoding, and fieldbus handshake logic, while the -40C to +85C industrial rating matches factory-floor ambient requirements. The 5V-tolerant, 3.3V/5V I/O structure connects directly to legacy 24V-conditioned TTL signal chains without level shifters, reducing BOM count. Because the antifuse fabric is non-volatile and instant-on, control logic is active the moment power is applied - valuable in safety-adjacent interlock circuits where SRAM FPGA boot latency is unacceptable. Place-and-route timing is deterministic given the sea-of-modules architecture, easing sign-off of fixed-logic control designs.
Recommended
Aerospace and Defense Subsystem Logic
Antifuse FPGAs are a classic choice in defense electronics because the one-time-programmable fabric inherently resists configuration upsets, unlike SRAM cells that must be scrubbed or triple-mode-redundancy protected. The A54SX16P-1VQG100I's 16,000 gates suit telemetry formatting, bus bridge, and sensor-interface logic in payloads and ground equipment. The industrial -40C to +85C grade covers many bench-based and environmentally controlled defense applications; for full flight temperature requirements, consult Microchip's broader space portfolio such as the RTAX family. Instant-on configuration eliminates the need for configuration PROMs and their associated single-point failure modes. Designers should fix the netlist early since antifuse devices cannot be reprogrammed, making this part ideal for frozen, well-verified logic functions.
Recommended
Legacy 5V System Retrofits and Obsolescence Management
Many industrial and transportation platforms still run 5V TTL backplanes whose original PLDs and ASICs are obsolete. The A54SX16P-1VQG100I's dual 3.3V/5V I/O capability allows direct replacement of dissolved 5V glue logic: address decoders, bus transceivers control, interrupt controllers, and handshaking state machines. With 16,000 gates and 81 I/O, an entire multi-chip TTL cluster can be consolidated into one VQFP-100 package, shrinking board area and power while improving reliability. The one-time-programmable fabric preserves firmware-like IP without external configuration memory - no boot PROM obsolescence risk. For redesign programs, the same die in the 176-pin TQFP (A54SX16P-1TQG176I) provides a forward migration path if I/O needs grow.
Recommended
Communications and Interface Bridge Logic
The A54SX16P-1VQG100I serves as protocol bridge silicon between mismatched interfaces - for example, mapping a parallel microprocessor bus to serial framing logic, or gluing UART, SPI-style, and parallel DMA paths at line rates well within its 280 MHz toggle capability. The sea-of-modules routing yields short, predictable interconnect delays, so fixed-latency bridging is achievable without the timing variance typical of SRAM FPGA segmented routing. 3.3V/5V I/O flexibility lets one device terminate both legacy 5V line cards and modern 3.3V controllers. Because configuration is permanent, deployed bridge logic cannot be corrupted in the field, an advantage for unattended telecom cabinets. Budget timing for the -1 speed grade when framing clocks approach the upper tens of megahertz.
Recommended
Test and Measurement Instrument Logic
Bench and rack instruments use the A54SX16P-1VQG100I for timing generators, event counters, trigger logic, and data-path formatting between ADC front ends and processors. The 280 MHz maximum toggle rate and deterministic antifuse routing support precise, repeatable timing epochs needed in measurement instrumentation. Instant-on configuration means the instrument is measurement-ready immediately at power-up, with no configuration load time added to startup sequences - a user-visible benefit. The industrial temperature rating supports instruments used in unconditioned environments. Designers commonly pair the SX16P with precision ADCs, using the FPGA to generate conversion clocks, decimate streams, and implement handshakes; the fixed netlist also simplifies calibration validation across production units since logic delays do not change between devices.
Recommended
Secure Fixed-Function Control in IoT Infrastructure
In IoT gateways and infrastructure nodes, the A54SX16P-1VQG100I implements tamper-resistant, fixed-function control planes: power sequencing supervision, sensor aggregation, watchdog and fail-safe interlocks. Because the antifuse configuration cannot be read back or modified in the field, the attack surface for logic tampering is fundamentally smaller than reconfigurable FPGA fabrics, supporting security-by-immobilization strategies. 81 user I/O and 3.3V/5V tolerance integrate mixed-voltage sensor clusters, while the 16,000-gate capacity handles aggregation state machines and protocol formatting. Instant-on operation allows the FPGA to supervise the main processor from the first millisecond, closing the boot-window vulnerability common to SRAM FPGA designs. For evolving designs needing updatability, pair the SX16P fixed logic with an MCU-based update path.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16P-1VQG100I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16P-2VQG100I | A54SX16P-2VQG100 | A54SX16P-VQG100I | A54SX16P-VQG100 | A54SX16P-1VQG100 |
|---|---|---|---|---|---|---|
| Package | VQFP-100 | VQFP-100 - same | VQFP-100 - same | VQFP-100 - same | VQFP-100 - same | VQFP-100 - same |
| Brand | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) |
| System Gates | 16,000 | 16,000 | 16,000 | 16,000 | 16,000 | 16,000 |
| Speed Grade | -1 | -2 (faster) | -2 (faster) | Standard (slower than -1) | Standard (slower than -1) | -1 (same) |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C (Industrial) | Commercial | -40C to +85C (Industrial) | Commercial | Commercial |
| User I/O | 81 | 81 | 81 | 81 | 81 | 81 |
| I/O Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| Max Clock Frequency | 280 MHz | 280 MHz (derated for -1 and faster) | 280 MHz (derated for -1 and faster) | [DATA_NEEDED] | [DATA_NEEDED] | 280 MHz |
Key Differentiators
- One-time-programmable antifuse fabric with instant-on boot (vs SRAM FPGAs (Xilinx/Intel/Lattice))
- 5V-tolerant dual 3.3V/5V I/O (vs Modern Microchip PolarFire/PolarFire SoC families)
- Deterministic sea-of-modules routing timing (vs Segmented-routing SRAM FPGA architectures)
- Trade-off: fixed logic, no field updates (vs A54SX16P-2VQG100I)
Design Notes
The A54SX16P-1VQG100I is one-time programmable: a design change requires a physically new device. Complete gate-level simulation and static timing analysis against -1 speed grade models in the Libero flow before programming production units. A recommended practice is to prototype on a larger SX-family package or device, freeze the netlist, then commit the VQG100 OTP parts. Never treat an antifuse FPGA like an SRAM part that can be re-flashed in the field.
Provide clean 3.3V (and 5V where used for I/O) supplies with local 0.1 uF ceramic decoupling at each VCC pin pair plus bulk capacitance near the package. Because antifuse routing is fixed, static and dynamic ICC depend on final utilization - estimate power with the Actel/Microchip power calculator after place-and-route, not from generic family averages. Inputs on unused 5V-domain nets must respect the 5V-tolerant I/O limits given in the 54SX datasheet absolute maximum tables.
The VQFP-100 has a 0.50 mm lead pitch: use a footprint per the 54SX datasheet package drawing with solder-mask-defined pads to aid self-alignment during reflow. Keep high-speed clock routing short and reference a solid ground plane; the sea-of-modules architecture gives deterministic internal delays, but board-level trace delay still dominates external timing margins at high toggle rates. Inspect leads with AOI for bridging given the fine pitch, and follow JEDEC-level MSL handling from the shipping label.
At toggle rates approaching the 280 MHz device capability, treat output edges as transmission-line drivers: series-terminate lines longer than roughly one-fifth of the signal rise time's electrical length, and avoid simultaneously switching all 81 I/O in the same direction without spreading. The 5V-tolerant I/O structure helps legacy interfaces but increases edge rates into old boards - verify overshoot against receiver absolute maximum ratings during system integration.
Compliance Information
Compliance for this mature SX-family ordering code is date-code dependent and not stated in the verified data. Consult Microchip's product page environmental documents for the specific manufacturing lot.
