A54SX16A-2TQG100 - 24K Gate SX-A FPGA 81 I/O TQFP-100 | Microchip
MPN: A54SX16A-2TQG100 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $165.2 | $165.20 |
| 10 | $156.5 | $1,565.00 |
| 90 | $148.8 | $13,392.00 |
| 500 | $141.4 | $70,700.00 |
| 1,000 | $134 | $134,000.00 |
Drop-in alternatives for A54SX16A-2TQG100 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX16A-2TQG100A
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A54SX16A-TQG100A
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View Datasheet →A54SX16A-1TQG100M
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$29.9 / Unit
View Datasheet →A54SX32A-2TQG100I
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$22.8 / Unit
View Datasheet →A54SX32A-2TQG100
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$187.85 / Unit
View Datasheet →A54SX32A-TQG100A
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$235 / Unit
View Datasheet →A54SX32A-1TQG100M
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$47.95 / Unit
View Datasheet →A54SX16A-2TQG100 Maximum Ratings & Electrical Characteristics
| Family | SX-A (Actel/Microchip antifuse FPGA) |
| System Gates | 24000 |
| Logic Cells / Modules | 1452 |
| User I/O | 81 |
| Speed Grade | -2 |
| Toggle Rate | 294 MHz |
| Core Supply Voltage | 2.25 V to 2.75 V (nominal 2.5 V) |
| Programming Technology | Antifuse (one-time programmable) |
| Process Technology | CMOS |
| Operating Temperature | 0 C to +70 C (commercial) |
| Package | TQFP-100 (PQFP100), 1.4 mm height, 0.5 mm pitch |
| Mounting Type | Surface Mount (SMD/SMT) |
| Configuration Memory | Non-volatile (antifuse, retains programming) |
| RoHS Status | Compliant |
| Number of CLBs | 1452 |
A54SX16A-2TQG100 tqfp-100 (pqfp100), 1.4 mm height, 0.5 mm pitch Pin Configuration Guide
Complete pinout information for A54SX16A-2TQG100 (tqfp-100 (pqfp100), 1.4 mm height, 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-2TQG100.
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-2TQG100 is suitable for 6 applications: Industrial Control Glue Logic, Legacy System Re-Engineering and Obsolescence Mitigation, Communications Bridging and Protocol Conversion, Design-Secure Control Logic, Aerospace and Defense Program Sustainment, Test and Measurement Instrumentation Logic.
Industrial Control Glue Logic
The A54SX16A-2TQG100 fits industrial control boards that need to consolidate address decoding, bus interfacing, handshaking, and control state machines into one device. Its 24,000 system gates and 1452 logic modules provide enough capacity to replace dozens of 74-series TTL devices, while the 81 user I/O covers parallel buses, chip selects, and status lines. The -2 speed grade's ~294 MHz toggle capability easily meets microprocessor bus timing, and the 2.5 V CMOS core keeps static power low in always-on controllers. Because the antifuse fabric programs permanently, the configured logic is immune to configuration upset at power-up, an advantage over SRAM FPGAs in systems without configuration flash. Designs should stay within the 0 C to +70 C commercial rating or move to an industrial-suffix variant.
Recommended
Legacy System Re-Engineering and Obsolescence Mitigation
The A54SX16A-2TQG100 is widely used to re-implement discontinued CPLD, PAL, and ASIC logic in long-life industrial, telecom, and defense equipment. The SX-A antifuse architecture replicates legacy asynchronous and synchronous behavior without requiring external configuration devices, since the pattern is burned permanently into the interconnect. With 24K system gates, 1452 modules, and 81 I/O in a 100-pin TQFP, a single part replaces multi-chip glue-logic clusters, simplifying BOM and PCB respin. The -2 speed grade preserves timing margins for older bus standards such as ISA-class, VME companion logic, and processor support functions. Designers must recompile legacy HDL or netlists in the Libero/Designer flow and perform timing closure before programming, since antifuse parts cannot be reworked in-system.
Recommended
Communications Bridging and Protocol Conversion
In networking line cards and backplane interfaces, the A54SX16A-2TQG100 serves as a protocol bridge, translating between processor buses and serial or parallel communication interfaces. Its ~294 MHz toggle rate at the -2 speed grade supports high-clock-rate serializers, deserializers, and framing state machines at moderate data rates, while 1452 modules provide the registers and counters such designs need. The 81 user I/O allow simultaneous connection of two or more bus domains. The antifuse configuration cannot be read back, giving a degree of intellectual-property protection valued in communication equipment. Engineers should budget the 2.5 V core and verify I/O standard compatibility with 3.3 V peripherals per the SX-A datasheet electrical tables.
Recommended
Design-Secure Control Logic
The A54SX16A-2TQG100 suits applications where the configured logic must be protected from cloning. Unlike SRAM FPGAs whose bitstream is stored in external flash and loaded at power-up, the SX-A antifuse fabric is programmed once at the factory or programming station and reveals no readable configuration image afterward. This makes the 24K-gate device appropriate for proprietary control algorithms, secure key handling logic, and anti-tamper companion functions. The 1452 modules and 81 I/O cover moderate-complexity secure state machines, and the permanent programming also eliminates configuration-time vulnerability windows. Trade-offs are the one-time-programmable nature, which rules out field updates, and the need to manage physical device programming logistics per production build.
Recommended
Aerospace and Defense Program Sustainment
SX-A antifuse FPGAs have a long heritage in aerospace and defense ground and flight equipment, and the A54SX16A-2TQG100 continues to sustain such programs. Its resistance to configuration corruption, radiation-tolerant family lineage, and permanently programmed fabric make it a preferred retrofit target when legacy Actel devices must be replaced. The 24K system gates map to the moderate gate counts typical of telemetry framing, motion control, and interface adapter designs, with 1452 modules and 81 I/O providing register-heavy logic capacity. Program managers value the availability of multiple speed grades and the A-revision (A54SX16A-2TQG100A) as form-fit-function continuity. Note the commercial temperature rating; select I-suffix or higher-grade family members for extended environments.
Recommended
Test and Measurement Instrumentation Logic
Bench instruments and automated test fixtures use the A54SX16A-2TQG100 for timing generation, trigger logic, counter arrays, and bus arbitration between the measurement front end and a host processor. The -2 speed grade's ~294 MHz toggle rate supports precise event timing at counter resolutions useful for instrumentation, while the 1452 modules implement wide comparators, FIFO control, and sequencer state machines. With 81 user I/O, one device interfaces to front-panel logic, ADC control buses, and a backplane simultaneously. The 2.5 V core keeps supply design simple with local regulators, and RoHS-compliant TQFP-100 packaging integrates into standard SMT production. Because configuration is permanent, instrument firmware logic changes require a new programmed device per revision.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16A-2TQG100 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16A-2TQG100A | A54SX16A-TQG100A | A54SX16A-1TQG100M | A54SX32A-2TQG100I |
|---|---|---|---|---|---|
| Package | TQFP-100 | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24000 | 24000 | 24000 | 24000 | 32000 (higher density) |
| Logic Cells / Modules | 1452 | 1452 | 1452 | 1452 | [DATA_NEEDED] |
| Speed Grade | -2 | -2 | Standard (A-class, slower) | -1 | -2 |
| User I/O | 81 | 81 | 81 | 81 | [DATA_NEEDED] |
| Operating Temperature | 0 C to +70 C (commercial) | Commercial | A-class grade | M grade | Industrial (-40 C to +85 C) |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
| Lead Time | 12 weeks (Mouser, as of 2026-09-03); DigiKey in stock | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Fastest commercial speed grade in the same package (vs A54SX16A-TQG100A)
- Lower cost than higher-density siblings (vs A54SX32A-2TQG100I)
- Configuration security from antifuse fabric (vs A54SX16A-2TQG100A)
Design Notes
The SX-A core operates from a 2.25 V to 2.75 V supply (nominal 2.5 V). Provide a clean local LDO or buck regulator with at least 10 uF bulk and 0.1 uF per supply pin decoupling. Antifuse FPGAs draw near-zero static current in the unprogrammed state but dynamic power scales with clock frequency and toggle activity, so size the regulator for worst-case switching rather than leakage. Confirm exact per-rail current figures in the SX-A family datasheet power tables before finalizing the power budget.
This device is one-time programmable. Never commit an unverified design file to a production device: complete RTL simulation, place-and-route timing analysis, and preferably validate on a prototype density first. Once antifuse elements are burned, the part cannot be erased or reworked. Also verify the correct speed-grade timing library (-2) is selected in the Designer/Libero flow; compiling with a faster library mask on a slower suffix part will produce non-functional silicon.
The TQFP-100 has a 0.5 mm lead pitch; use a standard TQFP-100 land pattern per the manufacturer package drawing with solder-mask defined or non-solder-mask defined pads per your assembly house capability. Avoid running signals under the package center without ground stitching, and keep clock inputs routed short with series termination if trace lengths exceed a few centimeters. Assign unused I/O as grounded outputs or inputs with pull definitions per the SX-A user guide to avoid floating nodes.
JTAG/programming pin access should be brought to test points or a header even if not used in-system, because factory programming and any failure analysis require access. Keep the 2.5 V plane solid under the device to minimize I/O return-path loops, and separate noisy switching-regulator nodes from clock and JTAG routing. Estimated: at ~294 MHz toggle regions keep clock traces under 50 mm to limit ringing without termination.
Compliance Information
Listings describe the part as ROHS COMPLIANT in lead-free TQFP-100 packaging. REACH, halogen-free, and conflict-minerals statuses not stated in provided data.
