A54SX08A-1TQG100I - 12K-Gate SX-A FPGA 81 I/O TQFP-100 | Microchip
MPN: A54SX08A-1TQG100I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.9 | $259.00 |
| 100 | $23.2 | $2,320.00 |
| 500 | $20.8 | $10,400.00 |
| 1,000 | $18.6 | $18,600.00 |
Drop-in alternatives for A54SX08A-1TQG100I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX08A-2TQG100I
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View Datasheet →A54SX08A-1TQG100
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$21.1 / Unit
View Datasheet →A54SX08A-TQG100A
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$19.75 / Unit
View Datasheet →EX256-TQG100
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX08A-1TQG100I Maximum Ratings & Electrical Characteristics
| Family | SX-A (antifuse FPGA) |
| System Gates | 12000 |
| Typical Gates | 8000 |
| Logic Modules (Cells) | 768 |
| User I/O | 81 |
| Speed Grade | -1 |
| Maximum Toggle Rate | 278 MHz |
| Core Supply Voltage | 2.5 V |
| Process Technology | 0.25 um CMOS |
| Programming Technology | Antifuse (one-time programmable) |
| Package | TQFP-100 (TQG100) |
| Mounting Type | Surface Mount |
| Temperature Grade | Industrial (I suffix) |
| RoHS Status | Compliant |
| Lead Free | Yes |
A54SX08A-1TQG100I tqfp-100 (tqg100) Pin Configuration Guide
Complete pinout information for A54SX08A-1TQG100I (tqfp-100 (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 A54SX08A-1TQG100I.
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
A54SX08A-1TQG100I is suitable for 6 applications: Industrial Control and Automation, Telecommunications Line-Card Glue Logic, Aerospace and Defense Subsystems, Processor Bus Bridging and Legacy Interface Conversion, Test and Measurement Instrument Logic, Security-Critical Control Logic.
Industrial Control and Automation
Factory automation systems need deterministic, instant-on control logic that tolerates wide ambient temperatures, and the A54SX08A-1TQG100I fits this role with its industrial temperature rating, 81 user I/Os, and 278 MHz-class -1 speed fabric. The antifuse configuration powers up functional within microseconds, so a PLC line card based on this device needs no configuration loader and cannot be knocked offline by a corrupted configuration memory - a real reliability benefit on machinery that cycles power daily. Typical circuits bridge sensor buses to a main CPU: the FPGA maps discrete I/O, generates PWM channels, and implements handshake state machines across its 768 logic modules. Because the fabric is OTP, designers verify logic thoroughly in simulation before programming, then gain a tamper-resistant control implementation immune to bitstream extraction. Place it between a 2.5V core regulator and field-side buffering, with I/O standards matched to adjacent 5V-tolerant or 3.3V logic per the SX-A datasheet.
Recommended
Telecommunications Line-Card Glue Logic
Telecom line cards historically combined a CPU, framing devices, and assorted PALs; the A54SX08A-1TQG100I consolidates that glue into one 12,000-gate antifuse chip, which is exactly the single-chip integration value proposition Microchip cites for the SX-A family. Its 81 user I/Os handle address/data multiplexing, interrupt collection, and board-level bus translation, while the 278 MHz toggle capability comfortably covers SONET/SDH-overhead auxiliary logic and backplane handshakes at common line-card clock rates. Deterministic antifuse routing means timing closures documented at design time remain valid in production - important for cards that stay in the field for 15+ years. Instant-on behavior matters in hot-swap and reset-sequencing schemes where an SRAM FPGA still loading its configuration stream would miss early events. Designers typically decouple the 2.5V core locally and keep I/O bank rails matched to the surrounding 3.3V PHY devices, reusing the TQFP-100 footprint across speed-grade variants.
Recommended
Aerospace and Defense Subsystems
Antifuse FPGAs are a mainstay in defense electronics because the configuration cannot be read back, dumped, or flipped by single-event effects in the way SRAM configuration cells can, and the A54SX08A-1TQG100I inherits these properties. Its instant-on operation suits power-critical avionics modules where logic must be alive before a processor completes boot, and the industrial -I rating plus screening options support ruggedized ground and airborne environments. In practice the device implements bus interface adapters (MIL-STD-1553 companion logic, ARINC handshakes),安全 interlocks, and telemetry encoders across its 768 modules, with 81 I/Os driving legacy 5V or 3.3V board logic. Because OTP programming forbids field patches, programs undergo formal verification and controlled programming-lot traceability. The TQFP-100 package also simplifies rework and inspection compared with ball-grid alternatives, and drop-in speed/temperature siblings within the same footprint allow supply-chain dual sourcing without board respin.
Recommended
Processor Bus Bridging and Legacy Interface Conversion
When a design must marry a modern processor to legacy peripherals - 8-bit or 16-bit buses, proprietary backplanes, or discontinued ASSP bridges - the A54SX08A-1TQG100I provides 12,000 system gates and 81 I/Os, ample for bus width adaptation, wait-state generation, byte-lane swapping, and interrupt aggregation. The -1 speed grade's 278 MHz-class toggle rate easily covers microprocessor bus clocks up to tens of MHz, with large timing margin, and deterministic antifuse delays make calculated setup/hold margins trustworthy for the life of the board. Unlike a microcontroller-based bridge, the FPGA adds no firmware to maintain and boots before the CPU, so early bus activity is never missed. The 2.5V core with banked I/O rails lets one chip straddle 3.3V host logic and 5V legacy devices where I/O standards permit, per SX-A datasheet ratings. Prototypes validate the interface on real hardware before OTP programming locks the logic.
Recommended
Test and Measurement Instrument Logic
Bench instruments and rack modules use the A54SX08A-1TQG100I as timing, trigger, and housekeeping logic: generating trigger state machines, gating counters, distributing sample clocks, and sequencing measurement channels. The -1 grade's 278 MHz-class performance supports fast trigger paths, while 81 I/Os expose front-panel controls, relay drivers, and inter-module handshakes directly. Antifuse determinism benefits instruments because propagation delays measured on one unit match production units, keeping calibration valid across the fleet - a subtle but real advantage over process-sensitive fabrics. Instant-on behavior ensures the instrument is ready the moment power is applied, with no configuration latency that would delay time-critical capture after a trigger-arm command. Engineers allocate the 768 modules across trigger logic and housekeeping blocks, verify timing in Libero, and rely on the industrial -I rating for lab environments that exceed commercial limits. The TQFP-100 footprint also allows hand rework during instrument prototyping.
Recommended
Security-Critical Control Logic
Systems where firmware extraction is a threat - payment terminals, access-control boards, cryptographic equipment support logic - benefit from the A54SX08A-1TQG100I's antifuse fabric: there is no configuration bitstream stored externally and no readback path, so the implemented state machines and key-handling logic are materially harder to reverse than in SRAM FPGAs. Microchip markets SX-A specifically on this combination of performance, security, and low power. The device's 768 modules and 81 I/Os implement door-control sequencers, tamper-response logic, sensor voting, and fail-safe interlocks, while instant-on operation guarantees protection is active before any processor boots - closing the power-up attack window entirely. Low static power suits battery-backed enclosures. The design trade-off is OTP rigidity: security logic must be exhaustively verified and frozen before programming, and updates require physical rework. Using the same TQFP-100 footprint across SX-A grades simplifies future respins that resize logic capacity without changing the security architecture.
Recommended
Recommended Products Summary
Engineering reference data for A54SX08A-1TQG100I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX08A-2TQG100I | A54SX08A-1TQG100 | A54SX08A-TQG100A | EX256-TQG100 |
|---|---|---|---|---|---|
| Package | TQFP-100 (TQG100) | TQFP-100 (TQG100) - same | TQFP-100 (TQG100) - same | TQFP-100 (TQG100) - same | TQFP-100 - same footprint class, verify pinout |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology (eX family) |
| System Gates | 12000 | 12000 | 12000 | 12000 | 8000 |
| Logic Modules | 768 | 768 | 768 | 768 | 512 |
| User I/O | 81 | 81 | 81 | 81 | [DATA_NEEDED] |
| Speed Grade / Toggle Rate | -1 / 278 MHz class | -2 (faster than -1) | -1 / 278 MHz class | [DATA_NEEDED] | 250 MHz class |
| Temperature Grade | Industrial (-I) | Industrial (-I) | Commercial | [DATA_NEEDED] | [DATA_NEEDED] |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Flash-based (reprogrammable) |
Key Differentiators
- Antifuse security and instant-on operation (vs EX256-TQG100)
- Higher logic capacity in the same footprint class (vs EX256-TQG100)
- Speed-grade flexibility without respin (vs A54SX08A-1TQG100)
- Industrial temperature rating as standard (vs A54SX08A-1TQG100)
Design Notes
Power the A54SX08A-1TQG100I from a clean 2.5V core rail with local decoupling: a bulk capacitor (10uF-class) at the regulator plus 0.1uF ceramics at each VCC pin of the TQFP-100. Antifuse FPGAs draw no configuration current at power-up, so supply sequencing requirements are minimal compared with SRAM FPGAs - an advantage in mixed-rail systems. Compute core current from your design's utilization using the Libero power analysis tools rather than worst-case family tables; small glue-logic designs typically draw far below the device maximum. Keep I/O bank rails matched to the signaling standards selected in the design.
The most common pitfall with this device is treating it like a reprogrammable FPGA: the antifuse fabric is one-time programmable, so a logic bug found after production programming means scrapping the chip, not reflashing it. Exhaustively simulate all functional blocks, run static timing analysis at the -1 grade in Libero, and validate on prototype hardware before releasing programming files to the production programmer. Also confirm the correct speed grade, temperature grade, and package (TQG100, -1, -I) at project creation in Libero, since a wrong selection invalidates timing reports.
For the 100-pin TQFP (0.5 mm lead pitch), use a standard J-lead land pattern from IPC-7351-class calculations and align the pin-1 silkscreen dot with the package pin-1 indicator to prevent 180-degree rotation errors - a frequent assembly defect on TQFPs. Reserve the 81 user I/Os with margin: route at least a few spare pins to test points for debug. Keep unused I/O configured per the SX-A datasheet recommendations to avoid floating inputs, and provide testability via boundary scan where the family supports it for production inspection.
Compliance Information
Mouser Europe and Jotrin listings identify the part as Lead Free and ROHS COMPLIANT. REACH, halogen-free, and conflict-minerals status not stated in provided data.
