A54SX16A-TQG100I - 24K Gate Antifuse FPGA, 81 I/O | Microchip
MPN: A54SX16A-TQG100I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $48.5 | $48.50 |
| 10 | $44.2 | $442.00 |
| 100 | $39.8 | $3,980.00 |
| 500 | $36.1 | $18,050.00 |
| 1,000 | $32.9 | $32,900.00 |
Drop-in alternatives for A54SX16A-TQG100I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX16A-1TQG100I
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View Datasheet →A54SX32A-1TQG100I
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View Datasheet →A54SX16A-TQG100I Maximum Ratings & Electrical Characteristics
| Family | SX-A (antifuse FPGA) |
| System Gates | 24000 |
| Available System Gates (family max) | up to 108000 |
| User I/O | 81 |
| Dedicated Flip-Flops (family max) | up to 2012 |
| Process Technology | 0.25 um CMOS |
| Programmability | One-time programmable (antifuse), non-volatile |
| Package | 100-TQFP (TQG100) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial, I suffix) |
| RoHS Status | RoHS Compliant |
| Lead Free Status | Lead Free |
| Architecture | Sea-of-modules |
| Configuration Storage | No external configuration device required |
| Category | FPGA - Field Programmable Gate Array |
A54SX16A-TQG100I 100-tqfp (tqg100) Pin Configuration Guide
Complete pinout information for A54SX16A-TQG100I (100-tqfp (tqg100) 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-TQG100I.
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-TQG100I is suitable for 6 applications: Industrial Control and Automation, Aerospace and Defense Control Logic, Communications Interface Bridging, Secure Boot and Anti-Tamper Systems, Legacy Design Continuity and Obsolescence Mitigation, Portable and Low-Power Instrumentation.
Industrial Control and Automation
The A54SX16A-TQG100I integrates glue logic, bus interfaces, and state machines into one 24K-gate antifuse device, reducing BOM count and board area in PLC I/O cards, motor control boards, and sensor hubs. Its 81 user I/O handle parallel bus and discrete signal interfacing, while the industrial -40C to +85C rating matches factory-floor environments. Because the antifuse configuration is non-volatile, the board powers into a known-good logic state instantly with no configuration controller. Designers place it between a microprocessor and field-side circuitry, trading SRAM-FPGA reconfigurability for the deterministic, tamper-resistant behavior required in unattended automation equipment.
Recommended
Aerospace and Defense Control Logic
Antifuse SX-A FPGAs are a long-standing choice in aerospace and defense subsystems because the programmed interconnect cannot be read back, eliminating bitstream-interception risk, and there is no configuration flash to fail under vibration or radiation stress. The A54SX16A-TQG100I provides 24,000 system gates and 2,012 dedicated flip-flops (family max) for telemetry formatting, command decoding, and sequencer logic. The industrial TQG100I grade suits development and less-critical programs, while military-screened M-suffix SX-A variants cover qualified builds. The instant-on, single-chip nature also simplifies power-up sequencing in launch vehicles and satellites where every boot cycle must be deterministic.
Recommended
Communications Interface Bridging
With 81 user I/O and a fine-grained sea-of-modules fabric, the A54SX16A-TQG100I implements protocol bridges, serial-to-parallel converters, address decoders, and backplane glue logic in telecom and datacom line cards. The 0.25 um CMOS process and antifuse interconnect deliver low static power, valuable in rack equipment with high channel density. Its non-volatile configuration means a line card is active immediately on slot insertion, simplifying hot-swap behavior without a configuration manager. Timing in the SX-A family is predictable thanks to dedicated routing, easing integration of fixed-throughput interface paths where SRAM FPGA reconfiguration or boot delay is unacceptable.
Recommended
Secure Boot and Anti-Tamper Systems
The one-time-programmable antifuse architecture of the A54SX16A-TQG100I makes it inherently suitable for secure-boot controllers, key-management glue logic, and anti-tamper front ends. Unlike SRAM FPGAs, there is no external bitstream to intercept, clone, or corrupt, and readback of the programmed design is not supported. Designs typically use the 24K system gates for authentication state machines, fuse-check sequencing, and lockout logic ahead of the main processor. For defense programs the device complements military-graded SX-A family members; the industrial TQG100I supports prototyping and non-qualified builds with identical footprint migration.
Recommended
Legacy Design Continuity and Obsolescence Mitigation
Many long-lifecycle industrial, medical, and defense platforms were designed around Actel SX and SX-A devices. The A54SX16A-TQG100I, still active with Microchip factory stock (1,010 units at MicrochipDirect as of early 2026) and broad distributor availability, serves as the continuity part for these programs. Same-family, same-footprint variants such as the TQG100A, 1TQG100I, and 2TQG100I provide second-source purchasing options within one die family, and the A54SX32A TQG100 class allows density migration without PCB rework. Procurement teams use this page's cross-reference table to de-risk single-source BOM lines for decade-long product support commitments.
Recommended
Portable and Low-Power Instrumentation
Battery-powered and handheld instruments benefit from the SX-A family's low static power and zero configuration energy: the antifuse FPGA consumes no boot current and needs no configuration flash, reducing both peak and average power. The A54SX16A-TQG100I implements sensor-interface sequencers, display drivers, and control glue in 24,000 gates with up to 81 I/O in a compact 100-pin TQFP (approximate 14x14 mm body class). The instant-on property lets the instrument become functional the moment power is applied, important for test probes and field meters. Designers pair it with a low-power MCU, reserving the FPGA fabric for parallel, timing-critical tasks.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16A-TQG100I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16A-1TQG100I | A54SX16A-TQG100A | A54SX32A-1TQG100I |
|---|---|---|---|---|
| Package | 100-TQFP (TQG100) | 100-TQFP (TQG100) - same | 100-TQFP (TQG100) - same | 100-TQFP (TQG100) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24000 | 24000 | 24000 | 36000 (SX32A die) |
| User I/O | 81 | 81 | 81 | [DATA_NEEDED] |
| Temperature Grade | Industrial (-40C to +85C, I suffix) | Industrial (I) | Automotive (A) | Industrial (I) |
| Speed Grade | Standard | Speed grade 1 | Standard | Speed grade 1 |
| Technology | Antifuse OTP, 0.25 um CMOS | Antifuse OTP, 0.25 um CMOS | Antifuse OTP, 0.25 um CMOS | Antifuse OTP, 0.25 um CMOS |
| Configuration Device Required | No | No | No | No |
Key Differentiators
- True non-volatile, instant-on operation (vs SRAM FPGAs (e.g., Lattice XP2-class devices))
- Design-readback security (vs A54SX16A-TQG100A)
- Footprint-compatible density migration (vs A54SX32A-1TQG100I)
Design Notes
The A54SX16A is one-time programmable. Unlike SRAM FPGAs, a programming error or late design change permanently consumes the device, so complete functional simulation, timing closure, and (ideally) a programmed-sample system validation before committing production quantities. Order a small engineering lot for validation builds, and keep the exact speed-grade suffix consistent between validation and production - timing reports from a grade-2 device do not guarantee closure on a standard-grade part.
Antifuse FPGAs have very low static current because there is no configuration RAM to hold, but dynamic power still scales with switching activity and I/O count. Budget I/O termination power separately: with up to 81 user I/O driving parallel buses, resistively terminated lines can dominate the power budget. Decouple VCC and VCCI banks with 0.1 uF ceramics per pin group plus bulk capacitance, and verify the supply sequencing of mixed-voltage I/O banks against the SX-A family datasheet electrical tables.
The 100-TQFP leadframe has 0.5 mm pitch leads - use a proven TQFP-100 land pattern with solder-mask-defined pads and inspect with AOI or X-ray for bridging on reflow. Keep unused user I/O configured per the Libero software recommendations (inputs with pull-down or grounded outputs) to avoid floating-node contention. Route clocks on short, direct traces; the SX-A routing fabric provides dedicated low-skew clock resources that should be matched with clean board-level clock entry.
Compliance Information
RoHS Compliant and Lead Free per A54SX16A-TQG100 datasheet specification summary (digichip) and distributor listings. Automotive-qualified builds exist in the family via A-suffix parts. REACH and halogen-free status not stated in provided data.
