Microchip Technology

A54SX08A-1TQG100 - 12K Gate SX-A FPGA TQFP-100 | Microchip

MPN: A54SX08A-1TQG100 ✓ Active
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2.5 V Vdss 100-pin TQFP (LQFP), 1.4 mm height Package 278 MHz Speed
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Price updated: 2026-09-03
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Qty Unit Price Extended
1 $32.5 $32.50
10 $29.25 $292.50
100 $26 $2,600.00
500 $23.4 $11,700.00
1,000 $21.1 $21,100.00
ℹ️ All prices are in USD

Drop-in alternatives for A54SX08A-1TQG100 — 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:

A54SX08A-TQG100A

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📦 100-TQFP
SX-A · 8K · 512 · 81 · 238 MHz · 0.25 um CMOS · 2.5 V · Antifuse (one-time programmable)

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A54SX08A-FTQ100

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📦 100-TQFP
SX-A · 12000 · 512 · 768 · 81 · 172 MHz · 2.25 V to 5.25 V · 2.5 V

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A54SX32A-1TQG100I

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Microchip Technology
📦 100-TQFP
SX-A · 48000 · 32000 · 1800 · 81 · 278 MHz · -1 · 2.5 V

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$38.5 / Unit

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A54SX32A-2TQG100I

✅ Drop-In
Microchip Technology
📦 100-TQFP
SX-A · 32000 gates · 1800 cells · 81 I/O · 313 MHz · 0.25 um CMOS · 2.5 V (2.25 V to 5.25 V operating range per distributor data) · One-Time Programmable (antifuse)

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$22.8 / Unit

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A54SX32A-TQG100M

✅ Drop-In
Microchip Technology
📦 100-TQFP
SX-A (Actel/Microsemi antifuse FPGA) · 48000 · up to 108000 · 2880 · up to 2012 · 81 · 360 · 2.5 V nominal (2.375 V to 2.625 V)

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$50.87 / Unit

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A54SX32A-TQG100A

✅ Drop-In
Microchip Technology
📦 100-TQFP
SX-A (antifuse FPGA) · 48000 · Up to 108000 · 81 · 2012 · 0.25 um CMOS · Antifuse (one-time programmable) · [DATA_NEEDED: core supply voltage]

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$235 / Unit

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A54SX08A-1TQG100 Maximum Ratings & Electrical Characteristics

Family SX-A (SXA)
System Gates 12000 (approx. 8000 typical gates)
Configurable Logic Blocks (CLBs) 768
Logic Cells 768
Number of Cells 512
Maximum Toggle Frequency 278 MHz
Process Technology 0.25 um CMOS
Supply Voltage 2.5 V
Number of I/O 81
Number of Pins 100
Package 100-pin TQFP (LQFP), 1.4 mm height
Speed Grade -1 (standard)
Programming Technology Antifuse (one-time programmable)
Mounting Type Surface Mount
Lead Free Yes
RoHS Status Compliant

A54SX08A-1TQG100 100-pin tqfp (lqfp), 1.4 mm height Pin Configuration Guide

Complete pinout information for A54SX08A-1TQG100 (100-pin tqfp (lqfp), 1.4 mm height package) with 100 pins. 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.

100-pin tqfp (lqfp), 1.4 mm height package pinout diagram for A54SX08A-1TQG100

No detailed pinout data available for A54SX08A-1TQG100.

Refer to the datasheet for full pin configuration.

Estimated pin count: 100 pins (digital package)

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for A54SX08A-1TQG100 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

A54SX08A-1TQG100 is suitable for 6 applications: Industrial Control and Automation, Consumer Electronics Logic Consolidation, Communications and Networking Interface Bridging, Military and Aerospace High-Security Logic, Test and Measurement Instrumentation, Medical Device Control Logic.

🏭

Industrial Control and Automation

The A54SX08A-1TQG100 fits industrial control boards that need deterministic, glue-free integration of counters, state machines, bus interfaces, and I/O expansion. Its 768 CLBs and 278 MHz toggle rate comfortably handle PLC I/O scanning logic, encoder interfaces, and interlock sequencing, while the antifuse fabric delivers fixed timing with no configuration boot delay - important for fail-safe startup in factory equipment. In a typical design, the 2.5 V FPGA sits behind 3.3 V/5 V-tolerant level-translation on its 81 user I/O, consolidating dozens of 74-series devices into one 100-pin TQFP. The one-time-programmable nature also prevents field tampering of control logic, a benefit for machinery security and process integrity.

📱

Consumer Electronics Logic Consolidation

In consumer products, the A54SX08A-1TQG100 replaces multiple discrete logic ICs with a single low-cost chip, cutting BOM count, board area, and assembly cost. The SX-A family is explicitly positioned by Microchip for low-cost single-chip integration of multiple functions. With 8,000 typical gates and 81 I/O, designs such as remote-control protocols, display timing generators, keypad scanning, and simple bus translation fit comfortably. The 2.5 V supply suits battery-operated and USB-powered devices by reducing dynamic power relative to 5 V logic families, and the lead-free RoHS 100-TQFP supports mass-reflow consumer manufacturing. Because antifuse programming is permanent, manufacturers avoid external configuration memory - one less component on cost-sensitive consumer PCBs.

🌐

Communications and Networking Interface Bridging

The A54SX08A-1TQG100 serves as a protocol bridge and framer glue in legacy communications line cards and networking equipment. Its 278 MHz toggle capability supports counters and pipeline stages for standard-speed serial and parallel interfaces, while deterministic antifuse routing simplifies timing closure without modern STA iteration. Typical usage maps the 81 I/O to PHY control buses, backplane status lines, and LED/maintenance interfaces, consolidating PAL/GAL/74x logic into one TQFP. The zero-configuration boot of antifuse fabric means the bridge is operational the instant power is applied - valuable where a management CPU must enumerate cards immediately. For higher-capacity bridging, the same-footprint A54SX32A devices allow a board-level migration without respinning the PCB.

✈️

Military and Aerospace High-Security Logic

Antifuse FPGAs are a long-standing choice in military and aerospace systems because configuration bits are physically burnt rather than stored in SRAM, eliminating readback attack paths and improving SEU resilience. The A54SX08A-1TQG100's 12,000 gates implement secure boot-sequencers, telemetry encoders, and discrete command logic, while the M-suffix family members (e.g., A54SX32A-TQG100M) extend temperature range for flight environments. The non-volatile single-chip operation removes configuration PROMs, reducing failure points in systems where maintenance access is impossible. Designs typically pair the FPGA with radiation-hardened support logic; the deterministic antifuse timing also eases worst-case timing analysis required by military qualification documentation.

🔧

Test and Measurement Instrumentation

Bench and embedded test instruments use the A54SX08A-1TQG100 for trigger logic, counter/timer front ends, and bus-interface glue. The fine-grained 768-CLB antifuse fabric provides predictable gate delays that matter when building precision time-interval counters, and the 278 MHz toggle ceiling supports event counting in the tens-of-MHz regime with prescaling. Because the device is non-volatile, instruments power up ready to measure with no FPGA-load step, reducing boot time in production-line testers that cycle power thousands of times daily. The 81 user I/O map directly to relay-drive lines, comparator interfaces, and status buses, replacing a dense cluster of TTL devices and improving signal traceability on the PCB.

💊

Medical Device Control Logic

Portable and benchtop medical equipment benefits from the A54SX08A-1TQG100's combination of low power (2.5 V core), deterministic logic, and secure one-time programming. Typical roles include sensor multiplexing control, alarm sequencers, and interface glue between analog front-end ICs and a host microcontroller. Because antifuse configuration cannot be altered after manufacture, device firmware-logic integrity is fixed at production test - a useful property for regulatory documentation of the logic function. The 100-pin TQFP's 1.4 mm profile suits compact handheld enclosures, and the lead-free RoHS construction aligns with medical-device material compliance requirements. Zero boot delay ensures safety interlocks are active at the instant power is applied.

What is the gate count of the A54SX08A-1TQG100?
The A54SX08A-1TQG100 provides 12,000 system gates, of which approximately 8,000 are typical usable gates, organized as 768 configurable logic blocks (768 cells). According to the Microsemi/Microchip SX-A family datasheet and distributor listings, the device is fabricated on a 0.25 um CMOS process and achieves a maximum toggle rate of 278 MHz at the -1 speed grade.
What supply voltage does the A54SX08A-1TQG100 require?
The A54SX08A-1TQG100 operates from a single 2.5 V supply. This low core voltage, combined with the 0.25 um antifuse CMOS process, keeps static and dynamic power consumption low compared with older 5 V and 3.3 V programmable logic families. Designers must ensure I/O signal levels and any upstream devices are compatible with 2.5 V operation per the SX-A datasheet electrical characteristics.
What package and pin count does the A54SX08A-1TQG100 use?
The A54SX08A-1TQG100 is supplied in a 100-pin TQFP (also listed as 100-LQFP, PQFP100 style) with a 1.4 mm package height, providing 81 user I/O. The thin quad flat pack body supports standard surface-mount reflow assembly. The identical TQFP-100 footprint is shared by other TQG100-suffixed members of the SX-A and SX families, which is why several family members serve as package-compatible alternates.
Where can I buy the A54SX08A-1TQG100 online?
The A54SX08A-1TQG100 can be purchased from authorized distributors including DigiKey, Mouser, Microchip USA, Ampheo, and via price-comparison on Octopart, which aggregates five distributors. XAIPART also supports quote-based ordering. Availability changes frequently for this legacy antifuse FPGA family, so confirm live stock and lead time with each distributor before committing to a purchase order.
How much does the A54SX08A-1TQG100 cost?
Pricing for the A54SX08A-1TQG100 varies by distributor and quantity; unit pricing on XAIPART starts at approximately $32.50 for quantity 1, decreasing at the 10/100/500/1000 quantity breaks, as of 2026-09-03. Because this is a legacy Microsemi/Microchip FPGA, distributor stock is limited and small-lot prices from brokers can be significantly higher - always compare authorized-distributor pricing before ordering.
What is the difference between A54SX08A-1TQG100 and A54SX08A-TQG100A?
The core difference is the operating temperature range indicated by the suffix: A54SX08A-TQG100A is the extended/automotive-range variant, while the -1TQG100 part uses the standard commercial speed/temperature bin. Both share the same 12,000-gate array, 768 CLBs, 278 MHz toggle rate, 2.5 V supply, 81 I/O, and identical 100-pin TQFP footprint, so they are package- and pin-compatible per Microchip family documentation.
Is A54SX08A-1TQG100 vs A54SX16A - which is better for industrial control?
For industrial control, choose the A54SX08A-1TQG100 when 8,000 typical gates and 81 I/O are sufficient, since it is the lowest-cost entry point of the SX-A family in the TQFP-100 package. Choose the A54SX16A (e.g., A54SX16A-1TQG100I) when the design needs roughly double the logic capacity in the same 100-pin TQFP footprint; the -I suffix adds the industrial temperature range. Both are pin-compatible, so migration requires only recompiling the design, not a PCB respin.
What is the best drop-in replacement for A54SX08A-1TQG100?
The best drop-in replacement is A54SX08A-TQG100A from the same Microchip SX-A family: identical 12,000-gate array, 768 CLBs, 2.5 V supply, 81 I/O, and the same 100-pin TQFP package with matching pinout. For designs needing more headroom without a PCB change, the A54SX32A TQG100 variants provide a larger array in the same footprint. Because all SX-A devices are one-time programmable antifuse parts, replacement requires re-running the design through Microchip Designer software for the new device.
Can A54SX32A-1TQG100I replace A54SX08A-1TQG100?
Yes, for most applications the A54SX32A-1TQG100I is a package-compatible substitute: it uses the same 100-pin TQFP footprint and pinout convention within the SX-A family while offering a larger logic array (32K system gates) and industrial temperature range. It is not functionally identical - the larger array has different internal resources, so the design must be recompiled and timing re-verified. If the A54SX08A resources suffice, stay with an A54SX08A variant to minimize risk and cost.
Where can I download the A54SX08A-1TQG100 datasheet PDF?
The A54SX08A-1TQG100 datasheet PDF (SX-A family datasheet, approximately 108 pages) is available from the official Microchip Technology product page at microchip.com/en-us/product/A54SX08A and from datasheet aggregators such as AiPCBA and EEWorld. Always prefer the Microchip official page to ensure you have the latest revision covering SX-A AC and DC electrical characteristics, pinout tables, and programming details.
Where can I find the A54SX08A-1TQG100 pinout?
The complete 100-pin TQFP pinout table for the A54SX08A-1TQG100 is published in the SX-A family datasheet available on the Microchip product page, in the pin definitions section for the TQFP-100 package. It lists the 81 user I/O plus VDD, GND, and programming pins. Because 69 of the 100 pins are power/ground/programming/NC and the rest are user-configurable I/O, the functional assignment is determined by your design and the Microchip Designer software pin-mapping report.
Is the A54SX08A-1TQG100 still in production and active?
Yes, the A54SX08A-1TQG100 remains listed as an active product on the Microchip Technology website, and DigiKey lists it as orderable with same-day shipping capability. However, the SX-A antifuse family is legacy silicon (0.25 um process), so long-term sourcing strategy should include second-source qualification of a pin-compatible family member or a modern FPGA migration path.
Is the A54SX08A-1TQG100 RoHS compliant and lead free?
Yes, the A54SX08A-1TQG100 is RoHS compliant and lead free. Multiple distributor and datasheet listings (Jotrin, GlobalSpec, RAYPCB) explicitly describe the part as ROHS COMPLIANT and Lead Free in the 100-pin TQFP package. REACH status and specific exemption certificates should be confirmed via the manufacturer compliance documentation, which is available from Microchip on request.
Why choose an antifuse FPGA like the A54SX08A over an SRAM FPGA?
The A54SX08A uses antifuse one-time-programmable technology, which gives three practical advantages over SRAM FPGAs: no external configuration flash is needed (single-chip BOM), configuration data cannot be read out (improved design security), and there is zero configuration boot delay. Additionally, antifuse fabric has better SEU/soft-error behavior than SRAM configuration cells. The trade-off is non-reprogrammability - every design change consumes a new physical device, so only choose it when the logic is stable and volume justifies the cost model.
What are the key specifications of A54SX08A-1TQG100 engineers should know?
The key specifications are: 12,000 system gates (approx. 8,000 typical), 768 configurable logic blocks, 278 MHz maximum toggle frequency, 0.25 um CMOS antifuse process, single 2.5 V supply, 81 user I/O, -1 speed grade, and a 100-pin TQFP package of 1.4 mm height, lead-free and RoHS compliant. These figures come from the Microsemi SX-A family datasheet as reproduced on Microchip's official product page and authorized distributor listings.
Hey Google, what can replace A54SX08A-1TQG100?
The closest drop-in replacements are same-family Microchip (Microsemi) parts in the identical 100-pin TQFP package: A54SX08A-TQG100A (extended temperature, identical logic), A54SX32A-1TQG100I and A54SX32A-2TQG100I (larger 32K-gate array, same footprint), and A54SX08A-FTQ100. Cross-brand direct pin-compatible equivalents for this legacy antifuse family are not offered by other manufacturers, so all recommended alternates are Microchip SX-A family members.
What is the best Microchip equivalent for A54SX08A-1TQG100 in extended temperature applications?
The best Microchip equivalent for extended temperature use is the A54SX08A-TQG100A, which carries the same 12,000-gate array and TQFP-100 footprint but in an extended temperature range variant. If industrial temperature rating is required, the A54SX32A-1TQG100I provides the -I industrial range in the same package, at the cost of migrating to the larger 32K-gate array and recompiling the design. All are lead-free, RoHS-compliant, 2.5 V antifuse devices.

Engineering reference data for A54SX08A-1TQG100 — comparison, design guidance, and compliance information.

Selection Guide

Choose the A54SX08A-1TQG100 when your design fits within 8,000 typical gates and 81 user I/O, needs zero configuration boot delay, and requires the lowest-cost 100-pin TQFP SX-A solution for industrial, consumer, or security-sensitive logic. Choose the A54SX08A-TQG100A drop-in when the operating environment exceeds the standard -1 commercial range, since it is the same die and footprint with extended temperature rating. Choose the A54SX32A-1TQG100I or A54SX32A-2TQG100I when logic growth is anticipated: they triple capacity in the identical TQFP-100 footprint, at the cost of a design recompile and higher unit price; the -2 grade adds speed for timing-critical paths. Choose the A54SX32A-TQG100M for military temperature requirements. All alternates are one-time programmable antifuse devices, so none suit applications needing field updates - for those, plan a migration to a flash-based FPGA family and accept the PCB respin. Honest trade-off summary: within SX-A you trade reprogrammability for security, non-volatility, and BOM simplicity.

Comparison with Alternatives

Parameter This Product A54SX08A-TQG100A A54SX08A-FTQ100 A54SX32A-1TQG100I A54SX32A-2TQG100I A54SX32A-TQG100M
Package 100-TQFP 100-TQFP - same 100-TQFP - same 100-TQFP - same 100-TQFP - same 100-TQFP - same
Brand Microchip Technology (Microsemi) Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
System Gates 12000 (approx. 8000 typical) 12000 12000 32000 32000 32000
CLBs / Cells 768 CLBs 768 768 [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED]
Supply Voltage 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V
User I/O 81 81 81 81 81 81
Speed / Temperature Grade -1 (standard) Extended (A suffix) F grade -1, industrial (I) -2, industrial (I) Military (M)
Max Toggle Frequency 278 MHz 278 MHz [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED]
Programming Technology Antifuse OTP Antifuse OTP Antifuse OTP Antifuse OTP Antifuse OTP Antifuse OTP
RoHS / Lead Free Compliant / Yes Compliant / Yes [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED]

Key Differentiators

  • Lowest-cost entry point of the SX-A family in TQFP-100 (vs A54SX32A-1TQG100I)
  • Non-volatile antifuse fabric with zero boot delay (vs SRAM-based FPGAs (cross-family))
  • Extended-temperature pin-compatible upgrade available (vs A54SX08A-TQG100A)
  • Trade-off: no field reprogrammability (vs A54SX32A-2TQG100I)

Design Notes

Design a clean 2.5 V rail for the A54SX08A-1TQG100 core supply. Decouple with at least 0.1 uF ceramic capacitors at each VDD pin pair plus bulk 10 uF near the device. Although antifuse FPGAs draw modest static current, dynamic current scales with toggle rate - a design toggling at the 278 MHz family ceiling needs tighter rail decoupling than a slow state machine. Per estimated analysis, a 768-CLB design toggling heavily may draw tens of milliamps; size the regulator with margin and verify with Microchip Designer power estimation tools.

The A54SX08A is one-time programmable (antifuse): an incorrect or changed bitstream permanently consumes a device. Complete the full simulation flow and timing verification in Microchip Designer/Libero before any programming run, and order pilot quantities accordingly. Also verify the exact speed/temperature suffix (-1 standard here vs A/M/I variants) on purchase orders - mixing grades is a common sourcing error in the SX-A family because MPN strings differ by only a few characters.

The 100-pin TQFP (0.5 mm lead pitch, 1.4 mm height) requires accurate land pattern per the manufacturer package drawing; avoid hand routing under the package center. Provide grounded thermal relief around the die area, keep the 81 user I/O stub lengths short for the fastest switchers, and reserve test pads for programming access because antifuse programming requires direct pin access per the SX-A programming specification. Series terminate long I/O lines to control reflections at edge rates typical of the 0.25 um process.

I/O banks on the SX-A family are powered from the same 2.5 V supply domain as the core, so input signals from 3.3 V devices must be verified against the SX-A datasheet absolute maximum and VIH specifications, using level shifters or series resistors where required. For buses exceeding roughly 10 cm of trace, add 22-33 ohm series termination at the driver; this is a board-level estimate based on typical 0.25 um CMOS edge rates and should be confirmed with IBIS-style simulation where available.

Compliance Information

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

Distributor and datasheet listings (Jotrin, GlobalSpec) explicitly describe the A54SX08A-1TQG100 as ROHS COMPLIANT and Lead Free. REACH, halogen-free, and conflict-minerals status were not stated in the provided data.

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

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Related Components & Terms

Microchip Technology Microsemi A54SX08A-1TQG100 A54SX08A-TQG100A A54SX32A-1TQG100I SX-A family FPGA field-programmable gate array antifuse one-time programmable configurable logic block (CLB) TQFP-100 LQFP 0.25 um CMOS RoHS lead free 2.5 V supply 278 MHz toggle rate 81 user I/O Libero / Microchip Designer industrial control military aerospace logic SEU immunity
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