A54SX16A-1TQG100M - SX-A FPGA 24K Gates 81 I/O | Microchip
MPN: A54SX16A-1TQG100M ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $42.5 | $42.50 |
| 10 | $39.2 | $392.00 |
| 100 | $35.8 | $3,580.00 |
| 500 | $32.4 | $16,200.00 |
| 1,000 | $29.9 | $29,900.00 |
Drop-in alternatives for A54SX16A-1TQG100M — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX16A-TQG100A
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View Datasheet →A54SX16A-1TQG100M Maximum Ratings & Electrical Characteristics
| Family | SX-A |
| System Gates | 24000 |
| Logic Gates | 16000 |
| Number of Cells | 924 |
| Number of I/O | 81 |
| Supply Voltage | 2.5 V |
| Max Toggle Frequency | 263 MHz |
| Internal Access Time | 1.2 ns |
| Speed Grade | -1 |
| Process Technology | 0.25 um |
| Programmable Type | OTP (Antifuse) |
| Package | 100-LQFP (TQFP), 0.5 mm pitch |
| Mounting Type | Surface Mount |
| Packaging | Tray (M suffix) |
| I/O Pitch | 0.5 mm |
A54SX16A-1TQG100M 100-lqfp (tqfp), 0.5 mm pitch Pin Configuration Guide
Complete pinout information for A54SX16A-1TQG100M (100-lqfp (tqfp), 0.5 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 A54SX16A-1TQG100M.
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-1TQG100M is suitable for 6 applications: Industrial Control and Automation, Legacy Telecommunications Line Cards, Test and Measurement Instrumentation, Defense and Aerospace Legacy Upgrades, Single-Chip Logic Integration / Glue Logic, Video and Display Interface Bridging.
Industrial Control and Automation
The A54SX16A-1TQG100M fits industrial control boards because its 24K system gates and 81 user I/O consolidate PLC I/O expansion, sequencer logic, and bus bridging that would otherwise occupy dozens of discrete logic devices. The OTP antifuse fabric powers up instantly with no configuration PROM and no boot delay, a key advantage in machinery that must be operational within milliseconds of power application. Its 2.5 V core draws low static power, simplifying thermal design in sealed industrial enclosures. Place the device between sensor header banks and a microcontroller, using the SX-A to implement handshake, debounce, and protocol glue. Trade-off: OTP means field firmware updates are impossible, so qualify the logic design fully before production release.
Recommended
Legacy Telecommunications Line Cards
Telecom line cards built in the 1990s and 2000s frequently used Actel/Microsemi SX antifuse FPGAs for framing, TDM switching, and backplane interface logic. The A54SX16A-1TQG100M extends service life of these designs: its 263 MHz toggle capability and 1.2 ns internal access comfortably cover E1/T1 and legacy backplane timing, while the 100-pin TQFP footprint matches the common TQ100 sockets used on those boards. Because antifuse programming is permanent and secure, carriers can re-spin line cards without exposing proprietary framing IP. When replacing a failed part, verify the speed-grade suffix matches the original design timing closure. Supply-chain continuity across the SX16A/SX32A TQ100 variants makes this part a natural second-source for maintenance volume.
Recommended
Test and Measurement Instrumentation
Bench instruments and automated test equipment use FPGAs for trigger logic, counter/timer functions, and signal routing matrices. The A54SX16A-1TQG100M's 24K gates implement multi-channel trigger comparators and event counters, while 81 user I/O on the compact TQFP provides dense channel expansion on a small board area. Its deterministic one-time-programmed fabric has no configuration-time jitter at power-up and no risk of configuration corruption during brown-out events - an important reliability consideration for instruments cycling power frequently. Design the timing-critical counter paths to exploit the 1.2 ns internal access, and close timing in Libero for the -1 grade. For higher channel counts, migrate to the pin-compatible A54SX32A-1TQG100 without PCB rework.
Recommended
Defense and Aerospace Legacy Upgrades
Antifuse FPGAs are a mainstay in defense electronics because the one-time-programmed fabric is inherently tolerant of configuration upsets and immune to bitstream extraction - a genuine security feature. The A54SX16A-1TQG100M supports obsolescence-driven redesigns of avionics, radar interface, and munitions logic originally implemented in Actel SX devices or large quantities of military-grade TTL. Its 2.5 V core and low static power suit battery and conduction-cooled platforms, and the 263 MHz toggle figure covers most legacy interface timing. Note that the commercial-grade M-package part must be evaluated against program environmental requirements; qualified-screened variants may be needed for flight programs. Microchip's long SX-A lifecycle support makes it a preferred vehicle for sustainment engineering.
Recommended
Single-Chip Logic Integration / Glue Logic
The original design goal of the SX-A family was replacing multiple TTL, CMOS, and PAL devices with one low-cost FPGA. The A54SX16A-1TQG100M absorbs address decoders, bus transceivers logic, interrupt controllers, and state machines into 24K system gates, cutting BOM count, board area, and assembly cost. With 81 user I/O and a 0.5 mm-pitch 100-pin TQFP, a single 14 mm device can replace 20-40 SSO package parts, dramatically reducing reflow complexity and improving mean time between failures. Because the antifuse fabric is non-volatile, the consolidated design needs no configuration storage and starts instantly. Consolidate the remaining discrete analog functions separately; the 2.5 V digital supply requires a simple dedicated regulator such as an LP5907-2.5.
Recommended
Video and Display Interface Bridging
Legacy flat-panel and CRT display controllers frequently required glue logic for synchronization generation, RGB bus steering, and EDID-style handshaking. The A54SX16A-1TQG100M implements these functions with 24K gates and 81 I/O, and its 263 MHz toggle capability exceeds the pixel-clock requirements of VGA-era and industrial display formats. The deterministic antifuse fabric delivers fixed, repeatable timing - valuable for video synchronization where jitter directly degrades image quality. Implement sync generators and palette logic in the SX-A while a microcontroller handles mode changes over a register interface. Verify the -1 speed grade closes timing for your target pixel clock; if margins are thin, the pin-compatible A54SX32A-2TQG100I offers a faster -2 grade on the identical footprint.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16A-1TQG100M — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16A-TQG100A | A54SX32A-1TQG100 | A54SX32A-2TQG100I | A54SX16A-1TQG144M |
|---|---|---|---|---|---|
| Package | 100-TQFP (LQFP-100) | 100-TQFP (LQFP-100) - same | 100-TQFP (LQFP-100) - same | 100-TQFP (LQFP-100) - same | 144-TQFP - different footprint |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24000 | 24000 | 32000+ | 32000+ | 24000 |
| Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Speed Grade | -1 | standard | -1 | -2 (faster) | -1 |
| Temperature Range | Commercial | [DATA_NEEDED] | Commercial | Industrial (I) | Commercial |
| Programmable Type | OTP antifuse | OTP antifuse | OTP antifuse | OTP antifuse | OTP antifuse |
| Packing | Tray (M) | Tray (A-flow) | [DATA_NEEDED] | [DATA_NEEDED] | Tray (M) |
Key Differentiators
- Lowest-cost capacity point in the pin-compatible TQ100 family (vs A54SX32A-1TQG100)
- Inherent design security and zero boot delay (vs SRAM-based FPGAs (Xilinx/Intel equivalents))
- Faster speed grade availability on the same footprint (vs A54SX32A-2TQG100I)
Design Notes
The A54SX16A-1TQG100M runs from a single 2.5 V supply. Use a dedicated low-noise regulator rather than a shared digital rail; antifuse FPGA timing is directly correlated with core voltage. Decouple every VDD pin pair with 0.1 uF ceramics placed within 2 mm of the pin, plus one 10 uF bulk capacitor per device. Estimated: static current is in the low-mA class for 24K antifuse gates, but confirm against the SX-A datasheet current tables for your toggle rate before sizing the regulator.
Antifuse devices are one-time programmable - a bitstream error means scrapping the physical part. Complete full RTL simulation and static timing closure in Microchip Libero SoC for the -1 speed grade before submitting the design to programming. Do not substitute a different speed-grade suffix at programming time: an A54SX16A-TQG100A programmed with timing margins computed for -1 silicon may fail at temperature. Always verify the exact MPN suffix (package, grade, packing) against your approved vendor list at receiving inspection.
The 100-pin TQFP has 0.5 mm pitch with approximately 0.22 mm lead width; specify a 0.25-0.27 mm stencil aperture for reliable paste release and use a nominal non-soldermask-defined (NSMD) pad per the manufacturer package drawing. TQFP leads are fragile - avoid repeated rework cycles; more than two reflow exposures on the same unit risks lead co-planarity issues. For rework, use a wide-aperture hot-air nozzle and preheat the board to reduce thermal gradient across the 14 mm body.
Compliance Information
Compliance status was not stated in the provided verified web data; consult the Microchip product page environmental data for the A54SX16A-1TQG100M before design-in.
