A54SX08A-1TQG144I - 12K Gate SX-A FPGA, 144-TQFP | Microchip
MPN: A54SX08A-1TQG144I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.8 | $258.00 |
| 100 | $23.1 | $2,310.00 |
| 500 | $21.5 | $10,750.00 |
| 1,000 | $19.9 | $19,900.00 |
Drop-in alternatives for A54SX08A-1TQG144I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet →A54SX08A-1TQG144I Maximum Ratings & Electrical Characteristics
| Family | SX-A |
| System Gates | 12,000 |
| Typical Gates | 8,000 |
| Logic Cells (Modules) | 512 |
| Number of I/O | 113 |
| Logic Array Blocks | 768 |
| Supply Voltage (Core) | 2.5 V (2.25 V to 2.75 V) |
| Max Toggle Frequency | 278 MHz |
| Process Technology | 0.25 um |
| Speed Grade | -1 |
| Programmability Type | Antifuse (one-time programmable) |
| Operating Temperature | -40C to +85C |
| Package | 144-LQFP / TQFP (20x20 mm), 0.5 mm pitch |
| Mounting Type | SMD/SMT |
| Packaging | Tray |
A54SX08A-1TQG144I 144-lqfp / tqfp (20x20 mm), 0.5 mm pitch Pin Configuration Guide
Complete pinout information for A54SX08A-1TQG144I (144-lqfp / tqfp (20x20 mm), 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 A54SX08A-1TQG144I.
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-1TQG144I is suitable for 6 applications: Industrial Automation and Control, Telecommunication Line Cards, Military and Aerospace Legacy Upgrades, Secure Embedded Logic (Anti-Tamper), Glue Logic Consolidation / BOM Reduction, Medical Equipment Control Logic.
Industrial Automation and Control
The A54SX08A-1TQG144I fits industrial controller and I/O-module designs because it consolidates address decoding, state machines, and bus bridging into one 12,000-gate fabric with 113 I/O pins, replacing dozens of 74-series devices. Its industrial rating of -40C to +85C matches factory-floor requirements, and the antifuse fabric draws near-zero static current, reducing cabinet heat and power-supply sizing. In a PLC I/O card, the device typically sits between the field-side isolation and the backplane interface, implementing timestamping, debounce filtering, and communication glue logic at clock rates well within its 278 MHz toggle capability. Because it is one-time programmable and readback-protected, configuration IP cannot be extracted in the field, a plus for OEMs protecting control algorithms. Design it with 2.5V core regulation and standard decoupling; no configuration PROM is needed, which simplifies the PCB and improves startup determinism on power-up.
Recommended
Telecommunication Line Cards
In telecom line cards, the A54SX08A-1TQG144I implements framing, multiplexing glue logic, alarm aggregation, and backplane interfaces. The SX-A family's 278 MHz toggle capability and -1 speed grade cover T1/E1 and legacy SONET-support logic comfortably, while 113 user I/O pins handle wide parallel buses to framers and processors. Antifuse configuration provides deterministic instant-on behavior - important in telecom equipment that must be operational within milliseconds of power-up, with no configuration-load window. The 144-pin TQFP with 0.5 mm pitch supports standard SMT assembly and reflow, and its 20x20 mm footprint fits dense line-card layouts. Because the fabric is non-volatile and immune to configuration upsets (single-event upset immune by construction compared to SRAM FPGAs), it suits carrier-grade uptime targets. Microchip positions SX-A explicitly for integrating multiple functions into a low-cost single-chip solution in communication systems, reducing BOM count and board area.
Recommended
Military and Aerospace Legacy Upgrades
The A54SX08A-1TQG144I is widely used to re-create obsolete ASIC and PLD functions in defense electronics upgrades, where boards must be re-manufactured decades after original production. Antifuse technology is inherently single-event-upset resistant because there is no configuration memory to flip, and the non-volatile fabric requires no boot PROM, both valued in avionics and rugged systems. The industrial -40C to +85C rating covers most qualified platform environments, and Microchip's Actel heritage means long-term product continuity for through-life support. A typical use is reimplementing a PAL/GAL cluster or a discontinued gate array in the 512-cell fabric with 113 I/O, matching 5V-legacy interface expectations where applicable. Designers should run full static timing in Libero/Designer at temperature corners before programming, since the device is one-time programmable and cannot be reworked after antifuse burn.
Recommended
Secure Embedded Logic (Anti-Tamper)
Applications requiring design confidentiality benefit from the A54SX08A-1TQG144I's antifuse architecture: there is no bitstream stored in external memory and no SRAM configuration to read back, making extraction of proprietary logic extremely difficult compared with SRAM FPGAs from Xilinx or Altera. For OEMs embedding encryption keys, license logic, or proprietary control algorithms, this one-time-programmable fabric provides physical security at low cost. The 512 logic modules are sufficient for DES-class datapaths, authentication state machines, and secure boot glue logic, while 113 I/O support wide interfaces to host processors. Startup is immediate on power application - no configuration time means no security window during boot. Combine with supply filtering (2.5V core) and standard ESD protection on exposed I/O. This security posture is a primary reason Microchip markets SX-A as combining performance, security, and low power in a single-chip solution.
Recommended
Glue Logic Consolidation / BOM Reduction
A classic use of the A54SX08A-1TQG144I is replacing mixed 5V/3.3V glue logic - decoders, comparators, wait-state generators, interrupt controllers, and bus transceivers - with a single chip. Microchip explicitly positions SX-A for generating system-wide savings by integrating multiple functions into a low-cost single-chip solution. A design consuming 20-40 SSI/MSI devices typically collapses into one 144-TQFP package, cutting board area, assembly cost, and inventory lines, while improving timing consistency because inter-block delays are on-chip. The 8,000 typical gates and 113 I/O are ample for most processor-support logic around 8/16-bit MCUs and legacy buses. Because the device is one-time programmable, it suits stable, production-mature designs rather than frequently changing prototypes; keep a simulation-verified design archive for respins. Power savings are significant as well, since antifuse fabric has no static configuration current.
Recommended
Medical Equipment Control Logic
Diagnostic and monitoring equipment uses the A54SX08A-1TQG144I for deterministic control sequencing, sensor-interface glue logic, and display/bus interfacing, where the instant-on antifuse fabric and low static power are practical benefits. Deterministic startup matters in medical devices with power-on self-test requirements: there is no FPGA configuration latency, so the logic is functional the moment supplies settle. The 2.5V core keeps power low in always-on monitoring paths, while 113 I/O interfaces comfortably to front-end ADCs, motor drivers, and host interfaces within the 278 MHz toggle capability. The 144-TQFP surface-mount package supports standard reflow assembly used in medical manufacturing. For devices requiring design IP protection (calibration algorithms, treatment-control logic), the readback-resistant one-time-programmable fabric helps manufacturers protect firmware-adjacent hardware logic. Verify I/O standard compatibility and timing at temperature in Libero/Designer before committing devices, since antifuse programming is irreversible.
Recommended
Recommended Products Summary
Engineering reference data for A54SX08A-1TQG144I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX08A-2TQG144I | A54SX08A-1TQG144 | A54SX16A-1TQG144I | A54SX32A-1TQG144I |
|---|---|---|---|---|---|
| Package | 144-TQFP (LQFP) | 144-TQFP - same | 144-TQFP - same | 144-TQFP - same | 144-TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 12,000 | 12,000 | 12,000 | 24,000 | 48,000 |
| Speed Grade | -1 | -2 (faster) | -1 | -1 | -1 |
| Temperature Range | -40C to +85C (industrial) | -40C to +85C | 0C to +70C (commercial) | -40C to +85C | -40C to +85C |
| Core Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
| Relative Unit Cost | Baseline | Higher (faster grade) | [DATA_NEEDED] | Higher (2x gates) | Highest (4x gates) |
Key Differentiators
- Lowest-cost entry to the TQFP-144 SX-A footprint (vs A54SX16A-1TQG144I)
- Industrial temperature qualification (vs A54SX08A-1TQG144)
- Cost-optimized speed grade (vs A54SX08A-2TQG144I)
- Secure non-volatile antifuse fabric (vs SRAM FPGAs (Xilinx/Altera))
Design Notes
The A54SX08A requires a regulated 2.5V core supply (2.25V to 2.75V). Antifuse FPGAs draw very low static current, but dynamic current scales with toggle rate and I/O switching; size the 2.5V regulator for your worst-case utilization, not just the datasheet typical. Decouple with at least 10 uF bulk plus 0.1 uF ceramics at each VCC/VCCA pin pair per SX-A datasheet power guidelines. Because there is no configuration current spike (unlike SRAM FPGAs), inrush is dominated by ordinary decoupling capacitor charging - simplifying soft-start design.
The device is one-time programmable: after antifuse programming, errors cannot be corrected. Complete functional simulation, timing simulation, and static timing analysis at temperature/voltage corners in Microchip Libero SoC (or legacy Actel Designer) before programming production devices. Also confirm the temperature suffix: the 'I' grade is -40C to +85C; using the commercial 'A54SX08A-1TQG144' in an industrial environment violates its 0C to +70C rating and is a common procurement mistake during shortages.
The 144-TQFP has 0.5 mm lead pitch; use footprint land patterns per the manufacturer datasheet package drawing and inspect solder joints with magnification or X-ray on first articles, since TQFP leads are prone to bridging at 0.5 mm pitch. Assign unused I/O as inputs with weak pull-down (or per datasheet recommendation) rather than leaving floating. The device is MSL-rated for reflow - follow the tray moisture-barrier bag labeling for bake requirements before reflow to avoid package delamination.
With 113 user I/O and up to 278 MHz internal toggle rates, manage simultaneous switching output (SSO) noise by distributing switching outputs across available ground pins and limiting the number of simultaneously edge-transitioning outputs in one bank where possible. For interfaces to legacy 3.3V/5V logic, confirm the applicable I/O standard voltage per the SX-A datasheet I/O tables - do not assume all 113 pins tolerate the same input voltage. Series-terminate (22-33 ohm) long single-ended traces to control reflections on backplane-style connections.
Compliance Information
RoHS/REACH/lead-free status not stated in the provided web data - verify on the Microchip product page. The A54SX08A-TQG144A is the automotive-oriented family variant; the standard -1TQG144I is not an AEC-Q100 listed part in the provided data.
