A54SX08-2TQG144 - 8K Gate SX FPGA 144-TQFP | Microsemi
MPN: A54SX08-2TQG144 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.65 | $256.50 |
| 100 | $22.8 | $2,280.00 |
| 500 | $19.95 | $9,975.00 |
| 1,000 | $17.1 | $17,100.00 |
Drop-in alternatives for A54SX08-2TQG144 — 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:
A54SX08-TQG144I
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View Datasheet →A54SX08-1TQG144
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$31 / Unit
View Datasheet →A54SX16P-1TQG144
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View Datasheet →A54SX16P-2TQG144
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$48.9 / Unit
View Datasheet →A54SX16P-2TQG144I
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$26.1 / Unit
View Datasheet →A54SX32-TQG144
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$1387.71 / Unit
View Datasheet →A54SX32-1TQG144
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$48.1 / Unit
View Datasheet →A54SX08-2TQG144 Maximum Ratings & Electrical Characteristics
| Series | SX (A54SX08) |
| System Gates | 8000 (approx. 12000 estimated) |
| Logic Cells | 512 |
| Logic Array Blocks (LABs/CLBs) | 768 |
| User I/O | 113 |
| Maximum Toggle Frequency | 320 MHz |
| Speed Grade | -2 |
| Process Technology | 0.35 um antifuse CMOS |
| Supply Voltage | 3 V to 3.6 V; 4.75 V to 5.25 V |
| I/O Voltage | 3.3 V / 5 V |
| Package | 144-LQFP / TQFP (20x20 mm) |
| Mounting Type | Surface Mount |
| Package Height | 1.4 mm |
| Lead Finish | Matte Tin |
| Programmable Type | One-Time Programmable (antifuse) |
A54SX08-2TQG144 1.4 mm Pin Configuration Guide
Complete pinout information for A54SX08-2TQG144 (1.4 mm 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 A54SX08-2TQG144.
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
A54SX08-2TQG144 is suitable for 6 applications: Industrial Control Glue Logic, Communications Line Card Logic, Aerospace and Defense Board Logic, Bus Interface Bridging, Test and Measurement Fixtures, Legacy System Sustainment and Obsolescence Redesign.
Industrial Control Glue Logic
The A54SX08-2TQG144 consolidates address decoders, bus transceivers, state machines, and interrupt controllers that would otherwise occupy multiple 74-series devices. Its 8K gates and 512 cells absorb typical PLC I/O-module logic, while 113 user I/O with 5V-tolerant 3.3V/5V operation interfaces directly with legacy industrial TTL-level sensors and actuators. Because the antifuse fabric is live at power-up, control outputs are valid within nanoseconds of supply ramp, eliminating the configuration window of SRAM FPGAs that can glitch machinery during brownouts. In a typical build, the SX08 replaces 15-20 SSI/MSI chips, cutting board area and improving mean time between failures.
Recommended
Communications Line Card Logic
In telecom and networking line cards, the A54SX08-2TQG144 handles framing, multiplexing, and backplane interface logic at line rates supported by its 320 MHz toggle capability in the -2 speed grade. The antifuse architecture provides deterministic, fixed routing delays that simplify setup-and-hold timing closure against backplane clock domains - a meaningful advantage over SRAM FPGA routing that varies with each place-and-route run. Matte-tin TQFP leads meet modern assembly requirements, and the 5V-tolerant I/O bank bridges older 5V backplane signaling with 3.3V PHY devices on the same board without level shifters.
Recommended
Aerospace and Defense Board Logic
The Actel/Microsemi antifuse FPGA lineage - which includes the SX family - is widely trusted in defense and aerospace designs because one-time-programmable configuration cannot be flipped by radiation-induced configuration upsets and needs no external configuration PROM that could fail or be corrupted. The A54SX08-2TQG144 implements telemetry encoding, command decoders, and sensor interfaces with live-at-power-up outputs required for fail-safe system behavior. For programs needing upgraded density in the same 144-TQFP land pattern, the SX16P and SX32 family members provide a migration path without PCB respin, protecting qualified-board investments over long program lifetimes.
Recommended
Bus Interface Bridging
The A54SX08-2TQG144 excels as a protocol and bus bridge, translating between legacy 5V TTL buses (VME, ISA, parallel backplanes) and modern 3.3V microcontrollers or PCIe-adjacent logic, exploiting its dual 3.0-3.6V and 4.75-5.25V supply operation. The 113 user I/O provide enough pins to map wide parallel buses on one side while reserving a local register interface on the other. The -2 grade's 320 MHz capability gives generous timing margin for wait-state generation and bus arbitration at classic 8-33 MHz bus clocks, and the antifuse fabric's fixed delays make bus propagation delay calculations predictable for multi-drop timing analysis.
Recommended
Test and Measurement Fixtures
Prototype and production test fixtures use the A54SX08-2TQG144 as a reconfigurable-at-design-time signal routing and stimulus engine. Engineers implement multiplexers, pattern generators, and pass/fail comparators within the 512-cell fabric, and the fixed antifuse routing delivers channel-to-channel skew consistency important for parametric measurements. The 144-TQFP's 0.5 mm lead pitch solders reliably on standard fixture PCBs, and 5V-tolerant I/O connects directly to instrument ECL/TTL threshold boards. Because the design is OTP, released test-station firmware is bit-identical across every unit, supporting ISO-style process repeatability where software-configurable fabrics would need checksum management.
Recommended
Legacy System Sustainment and Obsolescence Redesign
When a discontinued CPLD, PAL, or gate array must be replaced in an installed product, the A54SX08-2TQG144 is a frequent landing target: 8K gates absorb large PAL/GAL aggregates, the 5V-tolerant I/O matches original 1990s-era signaling, and the antifuse fabric is programmed once to replicate the legacy fuse map. The 144-TQFP footprint drops onto commonly available adapter boards for through-hole retrofits. Microchip's continued support of the SX family for the installed base, plus multiple stocking distributors, makes it a safer long-term sustainment choice than gray-market legacy devices, and the SX16P/SX32 same-package siblings provide headroom if the redesign accumulates additional features.
Recommended
Recommended Products Summary
Engineering reference data for A54SX08-2TQG144 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX08-TQG144I | A54SX08-1TQG144 | A54SX16P-2TQG144 | A54SX32-1TQG144 |
|---|---|---|---|---|---|
| Package | 144-TQFP (20x20 mm) | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same |
| Brand | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) |
| System Gates | 8K | 8K | 8K | 16K | 32K |
| Logic Cells | 512 | 512 | 512 | [DATA_NEEDED] | [DATA_NEEDED] |
| Speed Grade / Max Toggle Rate | -2 / 320 MHz | [DATA_NEEDED] | -1 (slower) | -2 | -1 (slower) |
| User I/O | 113 | 113 | 113 | [DATA_NEEDED] | [DATA_NEEDED] |
| Temperature Grade | Commercial | Industrial (-I) | Commercial | Commercial | Commercial |
| Supply Voltage | 3V-3.6V; 4.75V-5.25V | 3V-3.6V; 4.75V-5.25V | 3V-3.6V; 4.75V-5.25V | 3V-3.6V; 4.75V-5.25V | 3V-3.6V; 4.75V-5.25V |
Key Differentiators
- Fastest speed grade in the SX08 TQ144 family (vs A54SX08-1TQG144)
- Live-at-power-up OTP fabric vs SRAM reconfiguration delay (vs A54SX16P-2TQG144)
- Commercial-grade pricing advantage (vs A54SX08-TQG144I)
Design Notes
The A54SX08-2TQG144 uses dual supply domains: 3.0-3.6V for core/3.3V I/O and 4.75-5.25V for the 5V-tolerant I/O bank. Decouple every supply pin pair with 0.1uF ceramic capacitors placed within 5 mm of the pin, plus one bulk 10uF capacitor per rail per corner of the package. Power the 3.3V rail first or ensure simultaneous ramp per the SX family power-up specification to avoid latch-up during sequencing. Antifuse static current is very low compared to SRAM FPGAs, so thermal design is rarely a concern at this gate count.
This device is one-time programmable: once the antifuse fabric is programmed, the design cannot be erased or corrected. Reserve 15-20% of cells and I/O for late ECOs, fully simulate with back-annotated delays, and validate the programming file on an engineering-lot device before committing production units. Also confirm the speed-grade suffix (-1 vs -2) matches your timing constraints - a -1 device will not meet timing closed with -2 models.
The 144-TQFP (20x20 mm) has 0.5 mm lead pitch with a 1.4 mm body height. Use 0.2 mm stencil apertures reduced 10% for the fine-pitch lands to prevent solder bridging, and route breakout traces at 0.125 mm width/spacing with via fan-out on a 0.8 mm grid. Keep clock lines length-matched on outer layers and avoid routing under the package center where the silicon die sits - this area also suits a small ground plane pour for return paths.
Compliance Information
Verified web data indicates a matte tin lead finish for the TQG suffix variant; formal RoHS/REACH certificates were not present in the retrieved data and should be confirmed with the manufacturer certificate of conformance.
