Microsemi

A54SX08-2PQG208I - 12K Gate SX FPGA 130 I/O PQFP-208 | Microsemi

MPN: A54SX08-2PQG208I ✓ Active
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3 V to 3.6 V Vdss 208-PQFP (28x28 mm) Package 320 MHz Speed Non-volatile (antifuse, no external configuration device) Memory
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Price updated: 2026-09-03
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Drop-in alternatives for A54SX08-2PQG208I — 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:

A54SX08-2PQG208

✅ Drop-In
Microsemi
📦 208-PQFP (28x28)
SX (Actel antifuse FPGA) · 8000 · 512 · 768 · 130 · 320 MHz · 0.35 um CMOS · 3V ~ 3.6V, 4.75V ~ 5.25V

✓ In Stock

$46.8 / Unit

View Datasheet →

A54SX08-1PQG208I

✅ Drop-In
Microsemi
📦 208-PQFP (28x28)
8000 gates · 512 cells · 768 LABs · 130 · 280 MHz · 0.35 um CMOS · 3V ~ 3.6V · 4.75V ~ 5.25V

✓ In Stock

$32.6 / Unit

View Datasheet →

A54SX08-PQG208I

✅ Drop-In
Microsemi
📦 208-PQFP (28x28)
SX (Actel SX Family) · 8000 · 768 · 130 · 3 V to 3.6 V, 4.75 V to 5.25 V · 280 MHz · 208-BFQFP · 208-PQFP (28x28 mm)

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$25.5 / Unit

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A54SX08-1PQG208

✅ Drop-In
Microsemi
📦 208-PQFP (28x28)
Actel SX (54SX) · 8,000 equivalent gates · 512 cells · 768 LABs / CLBs · 280 MHz · 130 I/O · 3.3 V (3.0 V to 3.6 V) · 5 V (4.75 V to 5.25 V) / 3.3 V

✓ In Stock

Contact for price

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A54SX08A-2PQG208I

✅ Drop-In
📦 208-PQFP (28x28)
SX-A family successor with higher performance and lower power; same 130 I/O 208-BFQFP package and industrial temperature, timing characteristics differ

📋 Reference alternative (not in catalog)

A54SX16-2PQG208I

✅ Drop-In
Microsemi
📦 208-PQFP (28x28)
Actel SX (54SX) · 24000 gates · 1452 · 175 · 3 V to 3.6 V · 4.75 V to 5.25 V · 320 MHz · 0.35 um CMOS

✓ In Stock

$47.95 / Unit

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A54SX08-2PQG208I Maximum Ratings & Electrical Characteristics

System Gates 12000
Logic Cells 512
User I/O 130 pins
Maximum Toggle Frequency 320 MHz
Process Technology 0.35 um CMOS
Supply Voltage (Core) 3 V to 3.6 V
Supply Voltage (I/O) 4.75 V to 5.25 V
Speed Grade -2
Family Actel SX
Package 208-PQFP (28x28 mm)
Terminal Pitch 0.5 mm
Mounting Type Surface Mount
Operating Temperature -40C to +85C (Industrial)
Programming Technology Antifuse (one-time programmable)
Temperature Grade Code I (Industrial)
Configuration Memory Non-volatile (antifuse, no external configuration device)

A54SX08-2PQG208I 208-pqfp (28x28 mm) Pin Configuration Guide

Complete pinout information for A54SX08-2PQG208I (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.

208-pqfp (28x28 mm) package pinout diagram for A54SX08-2PQG208I

No detailed pinout data available for A54SX08-2PQG208I.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for A54SX08-2PQG208I Drain-to-Source Voltage (Vds) Drain Current (Id)

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

A54SX08-2PQG208I is suitable for 6 applications: Industrial Control and Automation, 5V Legacy Bus Bridge Logic, Telecommunications Line-Card Glue Logic, Aerospace and Defense Secure Logic, Medical Instrumentation Control Logic, Test and Measurement Equipment.

🏭

Industrial Control and Automation

The A54SX08-2PQG208I fits industrial control and factory automation designs because it combines an industrial -40C to +85C temperature rating with a 5V-tolerant I/O ring supplied from 4.75V to 5.25V, letting it interface directly with legacy PLC backplanes and TTL sensor buses that modern SRAM FPGAs cannot drive without level shifting. Its 12,000 gates and 512 cells are sufficient for sequencers, counters, and bus-bridge glue logic, and the 320 MHz toggle capability comfortably covers typical industrial clock domains in the 10-50 MHz range. Because the antifuse fabric is non-volatile, the controller is operational the instant power is applied with no configuration device, improving system boot behavior and fault tolerance on machinery that must restart unattended after power dips.

🔧

5V Legacy Bus Bridge Logic

Bridging 5V legacy buses such as VME backplanes, ISA-style instrumentation interfaces, or 5V TTL peripheral ports to modern 3.3V subsystems is a natural fit for the A54SX08-2PQG208I. The device's I/O ring operates from a dedicated 4.75V to 5.25V rail while the core runs at 3.0V to 3.6V, so it absorbs 5V signals natively without external translators - a capability largely absent from current-generation FPGAs. The 130 user I/Os provide ample width for 16- or 32-bit data paths, and the deterministic antifuse routing delays simplify meeting fixed bus setup/hold budgets. Deploying the -2 speed grade keeps propagation margins generous; designers should budget the dual-rail power consumption and provide independent decoupling per the 54SX family datasheet power guidelines.

🌐

Telecommunications Line-Card Glue Logic

Telecom line cards frequently need a dependable FPGA for framing, multiplexing, and control-plane glue logic between physical-layer devices and backplane interfaces. The A54SX08-2PQG208I serves this role with 12,000 gates, 130 user I/Os, and a 320 MHz internal toggle ceiling that covers T1/E1 and STM-class clock domains. The antifuse fabric's fixed routing delays make timing sign-off deterministic, which matters in carrier equipment where redesign cycles are expensive, and the one-time-programmable configuration eliminates bitstream-upset concerns in electrically noisy central offices. With 0.35um CMOS, static power is modest compared with denser SRAM devices. For designs outgrowing 12K gates, the pin-compatible A54SX16-2PQG208I doubles capacity without a PCB respin.

✈️

Aerospace and Defense Secure Logic

Antifuse FPGAs like the A54SX08-2PQG208I are a mainstay in defense electronics because the one-time-programmable fabric cannot be read back, dumped, or remotely reconfigured - a significant advantage for design-ip protection compared with SRAM FPGAs that expose their bitstream. The industrial -40C to +85C grade covers many sheltered avionic and ground-based defense environments, and the non-volatile configuration means the logic is live at power-on with no external configuration PROM to fail or be attacked. At 12,000 gates the device handles secure sequencers, key-storage state machines, and anti-tamper supervisory logic. Microsemi (now Microchip) remains the incumbent supplier for this class of radiation-tolerant-heritage programmable logic, and design tools support remains available through the Libero suite.

💊

Medical Instrumentation Control Logic

Bench-top and portable medical instrumentation - patient monitors, analyzers, and imaging peripherals - benefits from the A54SX08-2PQG208I's deterministic, configuration-free operation. The 12,000-gate capacity implements sensor interface sequencers, front-end timing controllers, and host interface glue logic, while the 130 user I/Os accommodate multi-channel sensor banks. Instant-on antifuse configuration removes boot-latency concerns in devices that must be ready immediately after power-up, and the industrial temperature range accommodates autoclave-adjacent and unconditioned clinical environments. Its 5V I/O rail also eases integration with older analog front-end components still supplied at 5V. Deterministic timing simplifies verification documentation required in regulated device development, reducing the validation burden compared with timing-drift-prone alternatives.

🖥️

Test and Measurement Equipment

Prototype and production test equipment uses the A54SX08-2PQG208I as a configurable timing, triggering, and interface controller. The 320 MHz toggle rate and -2 speed grade support high-resolution edge generation, while the fixed antifuse routing delays give repeatable channel-to-channel skew - essential when measurement repeatability is the product. The 5V-tolerant I/O ring connects directly to legacy instrument buses and DUT interfaces, and the 130 user I/Os provide generous test-point fan-out. Because the configuration is non-volatile and instant-on, test fixtures power up deterministically between DUT cycles. Engineering teams can also exploit the same-package A54SX16-2PQG208I when test sequences grow beyond the 12K-gate budget, preserving the existing fixture PCB.

What are the key specifications of A54SX08-2PQG208I?
The A54SX08-2PQG208I is a Microsemi Actel SX family antifuse FPGA with 12,000 system gates, 512 logic cells, and 130 user I/O pins. It toggles at up to 320 MHz, is built on a 0.35um CMOS process, and operates from a 3.0V-3.6V core rail and 4.75V-5.25V I/O rail. It comes in a 208-pin PQFP (28x28 mm) package and is industrial temperature grade (-40C to +85C). According to the Microchip 54SX family datasheet, the SX sea-of-modules architecture delivers deterministic, high-performance routing.
What is the difference between A54SX08-2PQG208I and A54SX08-1PQG208I?
The only functional difference is the speed grade: the '-2' part (A54SX08-2PQG208I) is the faster bin, while the '-1' part (A54SX08-1PQG208I) has slightly slower internal routing and logic delays. Both share the identical 208-pin PQFP package, 12,000 gates, 512 cells, 130 user I/Os, and industrial temperature range, so they are drop-in replacements for designs with relaxed timing closure. According to the SX family datasheet, speed grade selection should be based on static timing analysis of your specific design.
Where can I buy A54SX08-2PQG208I online?
The A54SX08-2PQG208I is listed at major distributors including DigiKey (order code 150-A54SX08-2PQG208I-ND), Mouser, and on Octopart, which compares bulk discounts from 3 distributors. It is also stocked by independent distributors such as Richard Electronics and IC-Stocks. Because this is a mature Actel SX family device, XAIPART offers quote-based sourcing; request a quote on this page for current pricing and lead time as of 2026-09-03.
What is the price of A54SX08-2PQG208I?
Distributor pricing for the A54SX08-2PQG208I is quote-based because it is a mature, low-volume-demand FPGA; Octopart reports 3 distributors carrying the part but public per-unit pricing is not consistently published. XAIPART does not list fixed quantity-break pricing for this MPN as of 2026-09-03. Use the request-a-quote form on this page to obtain current pricing, and consider the A54SX08-2PQG208 (commercial temperature) variant if it offers better availability for your environment.
What is the best drop-in replacement for A54SX08-2PQG208I?
The best drop-in replacements are same-family, same-package variants: A54SX08-2PQG208 (identical but commercial 0C-70C temperature grade) and A54SX08-1PQG208I (identical industrial part with the slower -1 speed grade). Both use the identical 208-pin PQFP footprint and pinout. According to the SX family datasheet, all A54SX08 PQFP-208 variants are pin-to-pin compatible, so PCB layout reuse is straightforward. Verify timing closure if substituting a slower speed grade.
Is A54SX08-2PQG208I the same as A54SX08-2PQG208?
No, they differ only in operating temperature range. The A54SX08-2PQG208I (with the 'I' suffix) is industrial grade, rated -40C to +85C, while the A54SX08-2PQG208 is commercial grade, rated 0C to +70C. Both have identical 12,000 gates, 512 cells, 130 user I/Os, 320 MHz toggle rate, and the same 208-pin PQFP (28x28 mm) package, making the commercial part a pin-compatible substitute only for designs operating above -40C and below +85C.
Is there a Microchip cross-brand equivalent for the A54SX08-2PQG208I?
There is no cross-brand drop-in equivalent: the A54SX08-2PQG208I is a 208-pin PQFP antifuse FPGA whose exact pinout and 5V-tolerant I/O architecture are unique to the Actel SX family, now owned by Microchip Technology. Microchip brands the same part under its own name and lists it in the Microchip cross-reference search system. Xilinx and Altera SRAM FPGAs with similar gate counts exist, but none are pin-compatible with this package. For supply issues, use same-family Microsemi/Microchip variants.
Can A54SX08A-2PQG208I replace A54SX08-2PQG208I?
The A54SX08A-2PQG208I belongs to the SX-A family, an enhanced successor of the SX family, in the same 208-pin BFQFP package with 130 user I/Os. It offers higher performance and lower power than the original SX, and per DigiKey both are listed as 130 I/O 208-BFQFP devices. However, because SX-A and SX have different internal timing and power characteristics, treat it as a functional substitute requiring re-verification of timing, not a guaranteed pin-to-pin drop-in. Consult both datasheets before substitution.
Where can I download the A54SX08-2PQG208I datasheet PDF?
The A54SX08-2PQG208I is covered by the Microchip '54SX Family FPGAs' datasheet, available as a PDF at ww1.microchip.com/downloads/aemdocuments/documents/fpga/ProductDocuments/DataSheets/a54sx_ds.pdf. Additional datasheet mirrors are hosted at datasheets.com and datasheets.globalspec.com. The datasheet covers the full SX family including the A54SX08, with DC/AC characteristics, package drawings for the 208-pin PQFP, and programming information. Always download from the Microchip official domain for the current revision.
Where can I find the A54SX08-2PQG208I pinout?
The complete 208-pin pinout for the A54SX08-2PQG208I is provided in the package pin description tables of the Microchip 54SX family datasheet PDF, in the section covering the 208-pin PQFP (28x28 mm) package. Because the device's I/O are user-assignable within banks, the pinout table defines power, ground, programming, and dedicated pins, while user signal assignments are made in the Libero/Designer software. XAIPART does not reproduce the full 208-pin table on this page; refer to the linked official datasheet.
Does A54SX08-2PQG208I require an external configuration device?
No. The A54SX08-2PQG208I uses Actel antifuse programming technology, which is one-time-programmable and non-volatile. Unlike SRAM-based FPGAs from Xilinx or Altera, it needs no serial configuration PROM, no bitstream load at power-up, and offers no configuration-readback attack surface. According to the 54SX family datasheet, this reduces bill-of-materials cost, board area, and startup time, which is a primary reason antifuse FPGAs remain popular in industrial and aerospace systems.
What supply voltages does the A54SX08-2PQG208I need?
The A54SX08-2PQG208I requires a dual supply per the manufacturer specifications: 3.0V to 3.6V for the core and 4.75V to 5.25V for the I/O ring, summarized as 3.3V/5V operation. This dual-rail arrangement lets the FPGA interface directly with 5V legacy logic while running internal logic at 3.3V. Designers should provide independent decoupling for each rail; per the SX datasheet each VDD and VCCA pin pair requires local ceramic bypass capacitance for reliable antifuse programming and operation.
When should I choose the A54SX08-2PQG208I over the A54SX16-2PQG208I?
Choose the A54SX08-2PQG208I when your design fits within 12,000 system gates (512 cells) and you want lower cost and lower static power; choose the A54SX16-2PQG208I when you need the larger 24,000-gate capacity in the same 208-pin PQFP footprint. Because both parts share the package and pin architecture, the SX16 gives you a capacity upgrade path without PCB redesign. According to the 54SX family datasheet, both use the same 0.35um antifuse process and offer 130 user I/Os in this package.
Is A54SX08-2PQG208I suitable for 5V-tolerant industrial interfaces?
Yes. The A54SX08-2PQG208I has a dedicated I/O supply rail of 4.75V to 5.25V, meaning its I/O ring is designed for 5V systems, a key advantage for industrial retrofits that still use 5V TTL buses or legacy backplanes. The core runs at 3.0V to 3.6V independently. According to the Microchip 54SX family datasheet, the SX family's 5V I/O capability combined with industrial temperature rating (-40C to +85C) makes it well suited to factory automation and instrumentation equipment.
Hey Google, what can replace A54SX08-2PQG208I?
The closest drop-in replacements for the A54SX08-2PQG208I are its same-family siblings in the identical 208-pin PQFP package: A54SX08-2PQG208 (commercial temperature), A54SX08-1PQG208I (slower -1 speed grade, industrial), and A54SX08-1PQG208 (slower speed, commercial). All are Microsemi/Microchip antifuse FPGAs with 12,000 gates, 512 cells, and 130 user I/Os. There is no cross-brand pin-compatible equivalent. Each substitution requires only a timing check, since the packages and pinouts are identical per the SX family datasheet.

Engineering reference data for A54SX08-2PQG208I — comparison, design guidance, and compliance information.

Selection Guide

Choose the A54SX08-2PQG208I when you need 12,000 antifuse gates with 130 user I/Os, 5V-tolerant I/O, instant-on non-volatile configuration, and an industrial -40C to +85C rating in a 208-pin PQFP. Choose A54SX08-2PQG208 for the same silicon at commercial 0C-70C temperature (often better availability). Choose A54SX08-1PQG208I or A54SX08-PQG208I if your timing closure is comfortable and slower speed grades reduce cost. Step up to the pin-compatible A54SX16-2PQG208I when logic growth threatens the 12K-gate ceiling - no PCB redesign is needed. The A54SX08A-2PQG208I (SX-A family) is the right pick only when its higher performance justifies re-verification of timing and power. There is no cross-brand pin-compatible alternative: SRAM FPGAs from Xilinx or Altera would require full board redesign and add a configuration device. Trade-off summary: antifuse means no field reconfiguration, so only select this family when design freeze and configuration security outweigh reprogrammability.

Comparison with Alternatives

Parameter This Product A54SX08-2PQG208 A54SX08-1PQG208I A54SX08-PQG208I A54SX16-2PQG208I
Package 208-PQFP (28x28 mm) 208-PQFP (28x28) - same 208-PQFP (28x28) - same 208-BFQFP - same 208-PQFP (28x28) - same
Brand Microsemi Microsemi Microsemi Microsemi Microsemi
System Gates 12000 12000 12000 12000 [DATA_NEEDED] (~24000)
Logic Cells 512 512 512 512 [DATA_NEEDED]
User I/O 130 pins 130 pins 130 pins 130 pins 130 pins
Speed Grade -2 -2 -1 (slower) standard (slower) -2
Operating Temperature -40C to +85C (Industrial) 0C to +70C (Commercial) -40C to +85C (Industrial) -40C to +85C (Industrial) -40C to +85C (Industrial)
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 [DATA_NEEDED]
Family SX SX SX SX SX

Key Differentiators

  • Fastest standard speed grade in the 12K-gate SX-208 package (vs A54SX08-1PQG208I)
  • Industrial temperature rating for harsh environments (vs A54SX08-2PQG208)
  • Non-volatile antifuse configuration (vs A54SX16-2PQG208I)
  • 5V-tolerant I/O ring (vs A54SX08A-2PQG208I)

Design Notes

The A54SX08-2PQG208I requires two independent supplies: 3.0V-3.6V for the core and 4.75V-5.25V for the I/O ring. Provide separate regulators or filtered rails with local ceramic decoupling (typically 0.1 uF per supply pin pair plus bulk capacitance) on both domains. Because the I/O rail is 5V, verify your 5V regulator can source the dynamic I/O switching current of your design; 130 I/Os switching simultaneously can draw significant transient current. Estimated: with all 130 outputs toggling at 20 pF loads and 33 MHz, transient current can reach hundreds of milliamps - size bulk capacitance accordingly.

This is a one-time-programmable antifuse device: you cannot reprogram it in-system to fix logic bugs, unlike SRAM FPGAs. Complete thorough simulation and static timing analysis in Microchip Libero/Designer before committing to programming. Also note speed grade matters at purchase time - a '-1' or standard grade part cannot be made to meet '-2' timing. Order the '-2' suffix (as in A54SX08-2PQG208I) when your timing closure is near the limit, and stock spares since a failed programming cycle renders the device unusable.

Use the 208-pin PQFP (28x28 mm) land pattern from the Microchip 54SX family datasheet package section, which specifies 0.5 mm terminal pitch. Keep the 5V I/O domain traces separated from sensitive analog routing, and place decoupling capacitors within 2-3 mm of each supply pin. PQFP leads are delicate: avoid repeated reflow cycles and handle by the body. A thermal pad is not provided, so rely on lead-frame conduction; power dissipation is modest at 0.35um CMOS and rarely requires special thermal management in this gate count class.

Compliance Information

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
Unknown
Halogen Free
Unknown
Conflict Minerals
Unknown

Compliance data was not present in the retrieved distributor listings for this MPN; consult the Microchip product page or contact XAIPART for certificates. Note that the dual 3.3V/5V supply architecture and 0.35um process indicate a legacy device.

Data verified on: 2026-09-03 — data verified and curated by XAIPART's component engineering team

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Related Components & Terms

Microsemi Microchip Technology A54SX08-2PQG208I A54SX08-2PQG208 A54SX08-1PQG208I A54SX08A-2PQG208I A54SX16-2PQG208I Actel SX family SX-A family FPGA Field-Programmable Gate Array antifuse one-time programmable PQFP 208-BFQFP sea-of-modules architecture 0.35um CMOS RoHS industrial temperature grade glue logic industrial automation telecommunications aerospace and defense Libero SoC Design Suite
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