A54SX16A-1TQG144M - 16K Gate 2.5V FPGA 144-TQFP | Microchip
MPN: A54SX16A-1TQG144M ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $68.5 | $68.50 |
| 10 | $62.1 | $621.00 |
| 100 | $55.8 | $5,580.00 |
| 500 | $50.3 | $25,150.00 |
| 1,000 | $45.6 | $45,600.00 |
Drop-in alternatives for A54SX16A-1TQG144M — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet →A54SX16A-1TQG144M Maximum Ratings & Electrical Characteristics
| Family | SX-A (antifuse FPGA) |
| System Gates | 24,000 |
| Raw Gates | 16,000 |
| Logic Modules (Cells) | 924 |
| User I/O | 111 |
| Maximum Toggle Frequency | 263 MHz |
| Process Technology | 0.25 um |
| Core Supply Voltage | 2.5 V |
| Speed Grade | -1 (standard) |
| Programmability Type | One-time programmable (antifuse), non-volatile |
| Package | 144-TQFP (LQFP) surface mount |
| Mounting Type | Surface Mount |
| Packaging | Tray |
A54SX16A-1TQG144M 144-tqfp (lqfp) surface mount Pin Configuration Guide
Complete pinout information for A54SX16A-1TQG144M (144-tqfp (lqfp) surface mount 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 A54SX16A-1TQG144M.
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
A54SX16A-1TQG144M is suitable for 6 applications: Industrial Control and Automation, Aerospace and Defense Logic, Communications and Networking Line Cards, Medical Instrumentation, Legacy ASIC and Discrete Logic Replacement, Test and Measurement Equipment.
Industrial Control and Automation
The A54SX16A-1TQG144M fits industrial control and automation systems where deterministic, non-volatile logic replaces multiple discrete devices. Its 24,000 system gates and 924 logic modules consolidate PLC I/O decoding, motor-control state machines, and bus-interface glue logic into a single 2.5 V, 0.25 um chip rated to toggle at 263 MHz, comfortably covering typical industrial clock domains of 25-100 MHz. Because antifuse configuration is non-volatile, the FPGA is operational the instant power arrives, with no boot PROM and no configuration glitch window, an important reliability attribute on factory floors with frequent power cycling. The 111 user I/O in the 144-TQFP package interface with 3.3 V and 2.5 V sensors, encoders, and fieldbus transceivers. Designers should reserve spare I/O and logic margin, since the one-time-programmable fabric cannot be updated in the field after programming.
Recommended
Aerospace and Defense Logic
The SX-A antifuse architecture inherits from Actel's defense-heritage programmable logic lines and is well suited to aerospace and defense subsystems that cannot tolerate configuration memory upset. Unlike SRAM FPGAs that reload bitstreams from external PROMs and can lose configuration under radiation, the A54SX16A-1TQG144M stores its netlist physically in antifuse switches, making it immune to configuration corruption and unreadable to attackers, protecting proprietary IP. The 16K raw gates handle telemetry formatting, MIL-STD bus glue logic, and frame synchronization, with the -1 speed grade and 263 MHz toggle limit bounding achievable throughput for these workloads. The 144-TQFP surface-mount package simplifies conformal-coated assembly. Trade-off: one-time programmability means every design change requires new silicon, so programs should adopt rigorous simulation and hardware-accelerated verification before committing flight units.
Recommended
Communications and Networking Line Cards
In communications and networking equipment, the A54SX16A-1TQG144M serves as address decoding, backplane interfacing, and glue logic between MACs, PHYs, and processors on line cards. Its 263 MHz maximum toggle rate supports fast parallel interfaces, while antifuse routing delivers ASIC-like, repeatable timing after place-and-route, which simplifies meeting backplane setup-and-hold budgets across production units, something SRAM FPGA routing variability can complicate. The 111 user I/O at 2.5 V/3.3 V levels connect to standard 32-bit buses and status vectors, and non-volatile instant-on operation means the card is addressable immediately at power-up, no configuration controller required. The 24,000 system-gate capacity covers typical bridge and sequencer functions. Designers should budget power decoupling for switching transients and verify I/O banking rules in the SX-A datasheet before assigning mixed-voltage pins.
Recommended
Medical Instrumentation
Medical diagnostic and monitoring instruments benefit from the A54SX16A-1TQG144M's deterministic logic and configuration security. The 924 logic modules implement sensor front-end sequencers, filter control, and display interface glue logic, while the 111 user I/O connect ADCs, patient-isolation barriers, and user-interface subsystems at 3.3 V and 2.5 V levels. Antifuse configuration cannot be read back or altered, supporting design IP protection and reducing the attack surface in connected medical devices, and instant-on operation ensures the instrument is ready the moment power is applied, which matters for portable and battery-backed equipment. The 263 MHz toggle capability easily covers medical data-path clocks of 10-50 MHz. Because the device is one-time programmable, regulatory re-verification cost favors locking the design early; allocate 20-30 percent logic and I/O headroom for post-trial updates before committing programmed units.
Recommended
Legacy ASIC and Discrete Logic Replacement
A primary SX-A use case marketed by Microchip is system-level cost reduction: integrating multiple discrete logic devices, gate arrays, or obsolete ASICs into a single low-cost FPGA. The A54SX16A-1TQG144M's 24,000 system gates absorb dozens of 74-series functions, PAL/GAL replacements, and small ASIC glue blocks, cutting board area, BOM count, and assembly cost. Antifuse technology preserves the ASIC-like behavior of the replaced logic, including fixed timing after routing and instant-on operation with no configuration delay, so the replacement behaves like the original hard-wired logic on the production line. The 144-TQFP footprint with 111 I/O covers most legacy 100-to-120-pin designs. Engineering caution: translation requires HDL capture, full simulation against original test vectors, and static timing analysis, since one-time programming leaves no field-update path once units are programmed.
Recommended
Test and Measurement Equipment
Bench instruments, automated test equipment, and data-acquisition systems use the A54SX16A-1TQG144M as timing controllers, trigger logic, and bus interfaces. Deterministic antifuse routing means trigger-path delays are stable unit-to-unit and across temperature drift, improving measurement repeatability versus SRAM FPGA routing whose delay varies with configuration reload. The 263 MHz toggle ceiling and 924 modules cover counter-timer, pattern-generator, and handshake-sequencing functions typical of ATE, while 111 user I/O drive relay matrices, ADC control buses, and status indicators at 2.5 V and 3.3 V levels. Instant-on non-volatile configuration lets instruments pass self-test immediately at power-up. Budget one-time-programmability into calibration workflows: firmware-defined features should live in an MCU companion, reserving the FPGA for fixed, verified logic that does not change between calibration cycles.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16A-1TQG144M — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-1TQG144M | A54SX32-TQ144M | A54SX32-2TQG144I | A54SX32-TQG144I | A54SX32-TQG144M |
|---|---|---|---|---|---|---|
| Package | 144-TQFP | 144-TQFP - same | 144-TQFP - same | 144-TQFP - same | 144-TQFP - same | 144-TQFP - same |
| Brand | Microchip Technology (Microsemi/Actel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24,000 | Higher density SX family (~2x) | Higher density SX family (~2x) | Higher density SX family (~2x) | Higher density SX family (~2x) | Higher density SX family (~2x) |
| Family / Process | SX-A, 0.25 um | SX family, earlier process | SX family, earlier process | SX family, earlier process | SX family, earlier process | SX family, earlier process |
| Core Supply Voltage | 2.5 V | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Speed Grade | -1 (standard) | -1 | standard | -2 (faster) | [DATA_NEEDED] | [DATA_NEEDED] |
| Temperature Grade | Commercial (-M) | Commercial (-M) | Commercial (-M) | Industrial (-I) | Industrial (-I) | Commercial (-M) |
| Programmability | Antifuse, one-time programmable | Antifuse, OTP | Antifuse, OTP | Antifuse, OTP | Antifuse, OTP | Antifuse, OTP |
Key Differentiators
- Latest-generation 0.25 um, 2.5 V process with 263 MHz toggle rate (vs A54SX32-TQ144M)
- Higher density option in identical footprint when 16K gates run out (vs A54SX32-1TQG144M)
- Faster and industrial-temperature upgrade path (vs A54SX32-2TQG144I)
Design Notes
The A54SX16A-1TQG144M runs its core from 2.5 V. Provide a dedicated LDO or DC-DC rail with local decoupling (10 uF bulk plus 0.1 uF ceramic per supply pin group). Antifuse FPGAs draw low static current, but switching transients on clocked logic cause di/dt spikes; a solid ground plane and short decoupling loops reduce supply bounce that would otherwise erode timing margin. Verify actual core and I/O current after place-and-route using the Microchip Designer power estimation report rather than relying on generic family estimates.
This is a one-time-programmable antifuse device: once programmed, the netlist is permanent and cannot be read back or updated. Complete HDL simulation, static timing analysis at worst-case corners, and hardware prototyping on a socketed or equivalent SRAM-based platform before programming production devices. Reserve 20-30 percent spare logic and I/O for late corrections, and retain the programming file and placed/routed database under revision control. Attempting to recover an unmodifiable programmed unit is the most common and costly mistake on this family.
The 144-TQFP has 0.5 mm lead pitch: specify a solder-mask-defined or non-solder-mask-defined pad per IPC-compatible land patterns and use a 1:1 stencil with reduced aperture (about 90 percent) to prevent bridging on the fine-pitch perimeter. Assign unused I/O per the SX-A datasheet recommendations (typically tri-stated with weak pull-up or ground-referenced per bank rules) and connect all VDD/GND pins, since missing a supply pin on a 144-lead package is a frequent assembly inspection miss. Add fiducials near the package for optical placement.
With 111 user I/O at 3.3 V/2.5 V levels, group fast-switching outputs (parallel buses, clock distribution) onto banks sharing a close ground return, and series-terminate long lines (22-33 ohm) to control overshoot, since the -1 grade supports edge rates fast enough to ring on traces longer than about 10 cm. Keep dedicated clock inputs routed as controlled-impedance lines away from switching I/O, and consult the SX-A datasheet AC timing tables when constraining interfaces above roughly 50 MHz, as the 263 MHz toggle figure is a fabric maximum, not a guaranteed per-pin I/O rate.
Compliance Information
Distributor listings (PCB Electronics) reference a LEAD FREE variant designation for A54SX16A-1TQG144M, but formal RoHS/REACH declarations were not present in the verified data. Obtain the Microchip certificate of conformance for definitive compliance status.
