A54SX16A-1TQG100 - 16K Gate SX-A FPGA, 100-TQFP | Microchip
MPN: A54SX16A-1TQG100 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $135.2 | $135.20 |
| 10 | $132.4 | $1,324.00 |
| 90 | $128.8 | $11,592.00 |
| 500 | $122.15 | $61,075.00 |
| 1,000 | $116.9 | $116,900.00 |
Drop-in alternatives for A54SX16A-1TQG100 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
A54SX16A-1TQG100I
✅ Drop-In✓ In Stock
$17.1 / Unit
View Datasheet →A54SX16A-2TQG100
✅ Drop-In✓ In Stock
$134 / Unit
View Datasheet →A54SX16A-TQG100A
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →A54SX16A-TQG100
✅ Drop-In✓ In Stock
$20.8 / Unit
View Datasheet →A54SX16A-1TQG100M
✅ Drop-In✓ In Stock
$29.9 / Unit
View Datasheet →A54SX16A-1TQG100 Maximum Ratings & Electrical Characteristics
| Family | SX-A (Antifuse FPGA) |
| System Gates | 24,000 |
| Typical Gates | 16,000 |
| Logic Cells | 924 |
| Configurable Logic Blocks (CLBs) | 1452 |
| Maximum Toggle Frequency | 263 MHz |
| Speed Grade | -1 |
| Process Technology | 0.25 um CMOS |
| Core Supply Voltage | 2.5 V (2.25 V to 2.75 V) |
| Number of I/O | 81 |
| Programmability Type | Antifuse (One-Time Programmable) |
| Package | 100-pin TQFP (TQG100) |
| Operating Temperature | 0C to +70C (commercial) |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| RoHS Status | Compliant |
A54SX16A-1TQG100 100-pin tqfp (tqg100) Pin Configuration Guide
Complete pinout information for A54SX16A-1TQG100 (100-pin 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-1TQG100.
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-1TQG100 is suitable for 6 applications: Industrial Control and Automation Glue Logic, Communications and Networking Interface Bridging, Defense and Aerospace Legacy Board Upgrades, ASIC Prototyping and Low-Volume Emulation, Test and Measurement Equipment Logic, Secure Embedded Controllers and Copy Protection.
Industrial Control and Automation Glue Logic
The A54SX16A-1TQG100 fits industrial control backplanes where multiple discrete logic functions must be consolidated into one certified, fixed-function device. Its 16,000 typical gates and 81 user I/Os are sufficient for bus arbitration, I/O mapping, interlock logic, and encoder-interface state machines, while the 263 MHz capability far exceeds the tens of MHz typically needed on PLC and motor-control boards. Because the antifuse configuration is one-time programmable, the logic cannot be altered in the field, supporting audit and safety-integrity requirements. Place the device between a microcontroller and legacy 5V/3.3V peripheral buses with appropriate level translation, and budget I/O switching current per the SX-A datasheet DC characteristics. For factory-floor enclosures below 0C or above 70C, specify the identical industrial-temperature A54SX16A-1TQG100I instead.
Recommended
Communications and Networking Interface Bridging
In networking line cards and communication adapters, the A54SX16A-1TQG100 serves as a protocol bridge, bus-width converter, or framing logic between PHY devices and system controllers. The 263 MHz maximum toggle frequency of the -1 speed grade comfortably covers 100 Mbps-class and mid-rate serial framing tasks, and the 81 user I/Os provide parallel data paths to multiple PHYs or backplane connectors. The antifuse architecture delivers deterministic, instant-on behavior at power-up with no configuration-load delay, which matters for equipment that must be link-ready within milliseconds. Designers should register all high-speed inputs and use the family's fast local routing, then verify timing at worst-case temperature in Libero. Where firmware-defined behavior is needed, pair the FPGA with a companion microcontroller for management functions.
Recommended
Defense and Aerospace Legacy Board Upgrades
The A54SX16A-1TQG100 is widely used to replace obsolete ASICs, PLDs, and multiple TTL/CMOS devices on defense and aerospace upgrade boards. The 0.25 um antifuse CMOS process offers low static power, no configuration-storage device to fail or be read out, and inherent resistance to configuration readback attacks, a long-standing reason Actel/Microsemi parts were chosen for military programs. With 24,000 system gates and 1,452 CLBs, it absorbs address decoders, bus interfaces, and sequencers from through-hole-era designs onto one 100-pin TQFP. For programs requiring extended screening, the identical-die A54SX16A-1TQG100M military-flow variant drops onto the same footprint. Designers should simulate exhaustively before programming since antifuse parts cannot be reworked, and should derate timing across full military temperature ranges using datasheet curves.
Recommended
ASIC Prototyping and Low-Volume Emulation
For teams validating small gate-array or structured-ASIC designs before tape-out, the A54SX16A-1TQG100 offers a low-cost, secure prototyping vehicle: 16,000 typical gates map small RTL blocks, and its one-time-programmable nature mirrors the non-reconfigurable character of a masked ASIC, catching configuration assumptions early. The 100-pin TQFP with 81 I/Os suits breadboard-friendly test boards, and the 263 MHz speed grade supports functional, if not full-speed, verification for many control-dominated blocks. Note that antifuse devices cannot be reprogrammed between iterations, so budget one device per design revision and rely on RTL simulation before commit. For iterative debugging, prototype in an SRAM FPGA first, then transfer the frozen netlist to the SX-A device for secure pilot builds and early customer samples.
Recommended
Test and Measurement Equipment Logic
Bench instruments and automated test fixtures benefit from the A54SX16A-1TQG100's combination of deterministic turn-on, fixed timing, and 81 flexible I/Os for driving fixture relays, comparators, and interface buffers. The 263 MHz toggle capability covers timing generators for moderate-rate test sequencers, and instant-on antifuse configuration removes configuration latency between test cycles, improving throughput on high-volume production fixtures. Because instrument environments are typically 0C to 50C, the commercial temperature rating is sufficient. Designers should keep clock distribution short and register all outputs that drive cables to control edge rates and EMI, and should allocate spare I/O for fixture self-test logic. For instruments needing more logic, the pin-different A54SX32A family scales capacity within the same toolchain and design library.
Recommended
Secure Embedded Controllers and Copy Protection
Products vulnerable to cloning, such as licensed peripherals, proprietary sensors, and secured access equipment, use the A54SX16A-1TQG100 to host authentication logic and proprietary algorithms. Antifuse configuration physically forms connection points during programming and cannot be electrically read back, so competitors cannot extract the design image, unlike SRAM FPGAs whose bitstreams reside in external flash. The 16K-gate capacity implements challenge-response engines, key storage logic, and lockout state machines alongside system glue logic in one 2.5V, low-static-power device. Combine the FPGA's fixed logic with a host microcontroller that holds secret material, keeping secrets out of the FPGA entirely, and treat the OTP nature as an asset: one validated, unmodifiable security configuration per product revision. This layering materially raises the cost of reverse engineering.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16A-1TQG100 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16A-1TQG100I | A54SX16A-2TQG100 | A54SX16A-TQG100A |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (TQG100) | 100-pin TQFP (TQG100) - same | 100-pin TQFP (TQG100) - same | 100-pin TQFP (TQG100) - same |
| Typical Gates | 16,000 (24K system) | 16,000 (24K system) | 16,000 (24K system) | 16,000 (24K system) |
| Logic Cells / CLBs | 924 cells / 1452 CLBs | 924 cells / 1452 CLBs | 924 cells / 1452 CLBs | 924 cells / 1452 CLBs |
| Maximum Toggle Frequency | 263 MHz | 263 MHz | Faster than 263 MHz (-2 grade) | 278 MHz |
| User I/O | 81 | 81 | 81 | 81 |
| Operating Temperature | 0C to +70C (commercial) | -40C to +85C (industrial) | [DATA_NEEDED] | [DATA_NEEDED] |
| Core Supply Voltage | 2.5 V (2.25-2.75 V) | 2.5 V (2.25-2.75 V) | 2.5 V (2.25-2.75 V) | 2.5 V (2.25-2.75 V) |
| Packaging | Tray | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Commercial price/availability advantage over industrial variant (vs A54SX16A-1TQG100I)
- Lower timing margin risk vs base and A grades trade-off (vs A54SX16A-2TQG100)
- Verified 278 MHz headroom alternative exists (vs A54SX16A-TQG100A)
- OTP security and instant-on vs SRAM FPGAs (vs SRAM-based FPGA competitors (no verified cross-brand drop-in))
Design Notes
The A54SX16A-1TQG100 runs from a 2.5V core supply (2.25V to 2.75V tolerance). Use a regulated LDO or buck output with +/-5% accuracy and place at least 0.1 uF ceramic decoupling per supply pin pair plus bulk capacitance near the TQFP. Because antifuse FPGAs draw power statically and dynamically depending on clock activity, estimate consumption with Microchip/Microsemi power tools using your post-place-and-route netlist rather than relying on generic estimates, and verify rail sequencing requirements against the SX-A family datasheet before finalizing the power tree.
This is a one-time-programmable antifuse device: it cannot be erased or reprogrammed. Complete RTL simulation, timing closure at worst-case corner, and design review before committing a device. Budget one unit per design revision during bring-up, since a fix requires a fresh part. Also, speed grades (-1, -2, A) are factory-set; do not assume a -1 part will meet -2 timing. Finally, the commercial part is rated 0C to +70C only - using it below 0C in outdoor or cold-storage equipment violates the rating; substitute A54SX16A-1TQG100I.
The 100-pin TQFP (0.5 mm pitch, 1.4 mm height) requires fine-pitch land pattern per IPC-7351 family guidance; verify the exact courtyard from the SX-A package drawing in the datasheet. Keep the 81 user I/O routed with controlled length for parallel buses, and add series termination (22-33 ohm) on outputs driving cables or long traces to limit edge rates and EMI. Reserve a few spare I/O routed to test points for debug, and provide programming/test pin access per the family documentation since antifuse programming occurs at board level or before assembly per your flow.
For the 263 MHz-class internal clocks, bring clocks in on dedicated clock pins and use the SX-A global routing resources rather than general fabric routing to minimize skew. Externally, keep 3.3V or 5V legacy bus interfaces within the datasheet I/O voltage limits; if interfacing 5V TTL, verify the SX-A I/O tolerance in the family datasheet before direct connection or add level translation. Simultaneous switching output (SSO) noise grows with the number of outputs toggling together - distribute ground return pins and limit bus slew via output registers and termination.
Compliance Information
FindIC listing explicitly states ROHS COMPLIANT for TQFP-100. Other compliance attributes not stated in the verified data.
