A54SX08-PQG208 - 8K-Gate SX FPGA, 208-Pin PQFP | Microsemi
MPN: A54SX08-PQG208 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $42.5 | $42.50 |
| 10 | $39.1 | $391.00 |
| 100 | $35.8 | $3,580.00 |
| 500 | $32.4 | $16,200.00 |
| 1,000 | $29.75 | $29,750.00 |
Drop-in alternatives for A54SX08-PQG208 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX08-PQG208I
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$25.5 / Unit
View Datasheet →A54SX08-2PQG208I
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View Datasheet →A54SX08-1PQG208I
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$32.6 / Unit
View Datasheet →A54SX08-1PQG208
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View Datasheet →A54SX08-2PQG208
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$46.8 / Unit
View Datasheet →A54SX08-P1PQG208
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX08-P1PQG208I
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX08-PQG208 Maximum Ratings & Electrical Characteristics
| Family | Actel SX (54SX) |
| Equivalent Gates | 8000 |
| Logic Modules / Cells | 512 |
| User I/O | 130 |
| Max System Clock Frequency | 240 MHz (up to 280 MHz per speed-grade variant) |
| Supply Voltage (VCC) | 3.0 V to 3.6 V |
| Supply Voltage (VCCI) | 4.75 V to 5.25 V |
| Process Technology | 0.35 um CMOS |
| Programming Technology | Antifuse (one-time programmable) |
| Package / Case | 208-BFQFP |
| Supplier Device Package | 208-PQFP (28x28 mm) |
| Terminal Pitch | 0.5 mm |
| Mounting Type | Surface Mount |
| Configuration | Non-volatile, no configuration PROM required |
| Number of Logic Blocks (LABs/CLBs) | 768 (per Microchip USA listing) |
A54SX08-PQG208 208-pqfp (28x28 mm) Pin Configuration Guide
Complete pinout information for A54SX08-PQG208 (208-pqfp (28x28 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-PQG208.
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-PQG208 is suitable for 6 applications: Glue Logic Consolidation, Industrial Control and Automation, Bus Bridging and Interface Conversion, Aerospace and Defense Subsystems, Test and Measurement Equipment, Legacy System Sustainment and Repair.
Glue Logic Consolidation
The A54SX08-PQG208 excels at replacing dozens of 74-series discrete logic devices with a single 8,000-gate antifuse FPGA. Its 130 user I/Os operating from a 4.75-5.25 V I/O rail interface directly with legacy 5 V TTL and CMOS signals, while the 3.0-3.6 V core keeps static power low. Because Actel antifuse programming is non-volatile, the consolidated logic is active immediately at power-up with no configuration loader, boot PROM, or microcontroller supervision. Deterministic pin-to-pin delays of the SX sea-of-modules architecture simplify fixing setup/hold margins when merging decoders, bus transceivers, counters, and state machines into one 208-PQFP package, cutting board area and BOM line items substantially.
Recommended
Industrial Control and Automation
In factory automation, motor-sequencing panels, and PLC I/O subsystems, the A54SX08-PQG208 provides deterministic, instantly-ready control logic. The industrial temperature options (A54SX08-PQG208I, A54SX08-2PQG208I) cover extended ambient ranges common on plant floors, while the 5 V I/O rail (4.75-5.25 V) connects natively to industrial sensors, optocouplers, and legacy actuators without level shifters. Its antifuse configuration cannot be corrupted by brown-outs or EMI events that would upset SRAM FPGAs, improving uptime. Designers typically implement PWM generators, quadrature-decoder counters, and interlock state machines in the 512 logic modules, exploiting system clock capability up to roughly 240 MHz for precise timing edges.
Recommended
Bus Bridging and Interface Conversion
The A54SX08-PQG208 suits bus-bridging designs that translate between legacy 5 V buses and 3.3 V subsystems, leveraging its dual-rail architecture: a 3.0-3.6 V core and a separate 4.75-5.25 V I/O supply. Typical bridges include PCI-style local bus arbiters, ISA/VME interface adapters, memory-bus multiplexers, and parallel-to-serial converters. With 130 user I/Os spread across the 208-PQFP (28x28 mm, 0.5 mm pitch), wide 16- and 32-bit buses terminate with adequate pin spacing for wave-solder and inspection processes. The antifuse fabric's short, predictable routing delays keep bus turnaround and address decode timing stable across process corners, simplifying timing analysis versus SRAM FPGAs.
Recommended
Aerospace and Defense Subsystems
Actel SX antifuse FPGAs have a long heritage in defense electronics, and the A54SX08-PQG208 fits ground-based and sheltered avionic subsystems such as test-set controllers, telemetry formatters, and payload interface logic. The key advantage is configuration immunity: antifuse interconnects cannot be flipped by single-event effects the way SRAM cells can, and no configuration bitstream is exposed in external memory for interception. For programs requiring radiation-tolerant qualification, migrate to the RTAX family within the same Microchip design flow. Designers value the instant-on behavior for power-critical platforms and the one-time-programmable fabric for tamper resistance in deployed field equipment.
Recommended
Test and Measurement Equipment
Bench instruments, PXI modules, and automatic test equipment use the A54SX08-PQG208 for timing generators, trigger matrices, and register-file based sequencing. System operation near 240 MHz (280 MHz on the P1 speed grade) supports sub-10 ns event resolution, while deterministic antifuse routing ensures channel-to-channel skew stays repeatable - critical for correlated multi-channel measurements. The 130 I/Os accommodate backplane connectors, front-end multiplexers, and status buses; the 5 V tolerant I/O rail interfaces with older instrumentation logic families. Because the device is active at power application, self-test routines execute before an OS or soft-configuration chain loads, shortening instrument boot time measurably.
Recommended
Legacy System Sustainment and Repair
Maintainers of legacy avionics, telecom switches, and industrial systems frequently need exact-form-fit-function replacements for populated boards, and the A54SX08-PQG208 addresses this directly: it remains orderable while many contemporary SRAM FPGAs have gone end-of-life. Its 208-PQFP footprint allows drop-in repair of existing PCBs, and because antifuse programming is permanent, replacement units can be factory-programmed with archived design files and shipped as fully qualified spares with no firmware-loading step on site. Keeping the same speed grade or selecting a faster grade (P1/-2) guarantees timing compatibility with original board timing budgets and certification data.
Recommended
Recommended Products Summary
Engineering reference data for A54SX08-PQG208 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX08-PQG208I | A54SX08-2PQG208I | A54SX08-1PQG208I | A54SX08-1PQG208 | A54SX08-P1PQG208 |
|---|---|---|---|---|---|---|
| Package | 208-BFQFP / 208-PQFP (28x28 mm) | 208-PQFP (28x28 mm) - same | 208-PQFP (28x28 mm) - same | 208-PQFP (28x28 mm) - same | 208-PQFP (28x28 mm) - same | 208-PQFP (28x28 mm) - same |
| Brand | Microsemi (Microchip Technology) | Microsemi | Microsemi | Microsemi | Microsemi | Microchip Technology |
| Equivalent Gates | 8000 | 8000 | 8000 | 8000 | 8000 | 8000 |
| User I/O | 130 | 130 | 130 | 130 | 130 | 130 |
| Max Clock Frequency | ~240 MHz | ~240 MHz | higher (speed grade -2) [DATA_NEEDED] | lower (speed grade -1) [DATA_NEEDED] | lower (speed grade -1) [DATA_NEEDED] | 280 MHz |
| Supply Voltage | 3.0-3.6 V core, 4.75-5.25 V I/O | 3.0-3.6 V / 4.75-5.25 V | 3.0-3.6 V / 4.75-5.25 V | 3.0-3.6 V / 4.75-5.25 V | 3.0-3.6 V / 4.75-5.25 V | 3.0-3.6 V / 4.75-5.25 V |
| Temperature Grade | Commercial | Industrial | Industrial | Industrial | Commercial | Commercial |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
Key Differentiators
- Non-volatile antifuse configuration (vs SRAM-based FPGAs (e.g., Xilinx Spartan family))
- Native 5 V I/O interface (vs A54SX16-2VQG100 and most modern FPGAs)
- Cost-optimal entry point in the SX family (vs A54SX16-PQG208)
- Deterministic timing vs in-system reconfigurability (vs A54SX08-P1PQG208 (faster speed grade))
Design Notes
Design the power tree around the dual-rail requirement: 3.0-3.6 V for the core (VCC) and 4.75-5.25 V for the I/O ring (VCCI). Place bulk 10-22 uF plus 0.1 uF ceramic decoupling at each supply group, with one 0.1 uF per pair of power pins on the 208-PQFP. Because antifuse FPGAs draw no configuration current, inrush is dominated by I/O switching; still verify per-rail current against the datasheet ICC figures for your utilization. Estimated: with 50% of 130 I/Os toggling 5 V loads at 10 MHz, I/O-rail current can reach hundreds of milliamps - size the 5 V regulator accordingly.
Antifuse devices are one-time programmable: an erroneous or incomplete programming cycle permanently consumes the device. Always reserve spare engineering parts, use a validated programming file with correct device/speed-grade selection (programming a -1 file into a P1 part works, but not the reverse), and lock the designer project revision to the programmed fuse file. Also confirm I/O standards are set for the 5 V VCCI ring - driving 3.3 V-only external devices from the 5 V rail risks overvoltage damage on external ICs.
The 208-PQFP has a 0.5 mm terminal pitch: specify a 0.25 mm-wide stencil aperture reduced by 10-15% to prevent solder bridging, and use fiducials on two diagonal corners for placement accuracy. Route the 5 V I/O ring away from sensitive analog traces, and keep clock inputs short and referenced to a solid ground plane. For rework, PQFP lead pitch of 0.5 mm makes hot-air removal feasible but drag-soldering risky - use a properly profiled reflow or a qualified contract rework station.
Compliance Information
Compliance data not present in retrieved web data; this is a legacy 0.35 um Microsemi/Microchip part - verify RoHS/lead-free status with Microchip before procurement.
