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Microsemi

A54SX32-BG313I - 32k Gate FPGA, 249 I/O, 313-BGA | Microsemi

MPN: A54SX32-BG313I ✗ End of Life
In Stock Ships in 1-3 business days
3V ~ 3.6V, 4.75V ~ 5.25V Vdss 313-BBGA Package 240 MHz Speed
From $47.9 USD / Unit
MOQ: 1 |
Price updated: 2026-09-03
Volume Pricing
Qty Unit Price Extended
1 $68.5 $68.50
10 $63.2 $632.00
100 $57.8 $5,780.00
500 $52.4 $26,200.00
1,000 $47.9 $47,900.00
ℹ️ All prices are in USD

Drop-in alternatives for A54SX32-BG313I — 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:

A54SX32-BG313M

✅ Drop-In
Microsemi
📦 313-BBGA
Microsemi Corporation (now Microchip Technology) · SX (Actel SX family FPGA) · Anti-fuse, sea-of-modules · 249 · 3 V to 3.6 V · 4.75 V to 5.25 V · 313-BBGA · 313-PBGA (35x35 mm)

✓ In Stock

$236 / Unit

View Datasheet →

A54SX32-BG313M

✅ Drop-In
Microsemi
📦 313-BBGA
Microsemi Corporation (now Microchip Technology) · SX (Actel SX family FPGA) · Anti-fuse, sea-of-modules · 249 · 3 V to 3.6 V · 4.75 V to 5.25 V · 313-BBGA · 313-PBGA (35x35 mm)

✓ In Stock

$236 / Unit

View Datasheet →

A54SX32-BG313I Maximum Ratings & Electrical Characteristics

Series SX (Actel SX family)
Equivalent Gate Count 32000 gates
Configurable Logic Blocks 2880 CLBs
User I/O 249
Maximum Clock Frequency 240 MHz
Supply Voltage 3V ~ 3.6V, 4.75V ~ 5.25V
Nominal Supply Voltage 3.3 V
Technology CMOS antifuse
Package / Case 313-BBGA
Supplier Device Package 313-PBGA (35x35)
Mounting Type Surface Mount
Temperature Grade Industrial (-I suffix)
Configuration Type One-time programmable (antifuse)
Lead Free Status Contains Lead
RoHS Status RoHS Non-Compliant

A54SX32-BG313I 313-pbga (35x35) Pin Configuration Guide

Complete pinout information for A54SX32-BG313I (313-pbga (35x35) 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.

313-pbga (35x35) package pinout diagram for A54SX32-BG313I

No detailed pinout data available for A54SX32-BG313I.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for A54SX32-BG313I 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

A54SX32-BG313I is suitable for 6 applications: Industrial Control Systems, Communications and Networking Line Cards, Aerospace and Defense Logic, Test and Measurement Equipment, Medical Device Control Logic, Battery-Powered and Low-Power Systems.

🏭

Industrial Control Systems

The A54SX32-BG313I fits industrial control and factory automation logic where non-volatile, instant-on FPGA configuration eliminates boot-time configuration loading from external memory. Its 32,000 gates and 2880 configurable logic blocks handle glue logic, bus interfacing, sequencing, and I/O expansion across up to 249 user I/O, sufficient for wide parallel backplanes and motor-control interface logic. The industrial temperature grade (-I) supports harsh plant-floor environments, and the 3.0V to 3.6V supply range matches standard 3.3V industrial rails. Because antifuse programming is permanent, designers should fully validate control logic in simulation before programming, since there is no field-update path on this legacy EOL device.

🌐

Communications and Networking Line Cards

In communications and networking equipment, the A54SX32-BG313I provides line-card glue logic, backplane bus bridging, and framing support at clock rates up to 240 MHz, which was state-of-the-art for antifuse FPGA fabrics in its generation. The SX sea-of-modules architecture delivers predictable routing delay, important for timing-critical data-path functions, while 249 user I/O support wide parallel data buses typical of telecom backplanes. The non-volatile antifuse configuration means the line card is functional the instant power is applied - an advantage over SRAM FPGAs that need bitstream loading. The EOL status means new telecom designs should treat this part as a legacy-sustainment component only.

✈️

Aerospace and Defense Logic

The SX antifuse family, including the A54SX32-BG313I, was widely adopted in aerospace and defense systems because antifuse configuration is inherently resistant to configuration upset and requires no external configuration storage that could be corrupted. The 32,000-gate capacity implements mission logic, protocol handlers, and sensor-interface functions with up to 249 I/O. The -M package sibling (A54SX32-BG313M) provides a military temperature-grade drop-in within the same 313-BBGA footprint, enabling temperature-tier sourcing on a single board layout. Designers must note the one-time-programmable nature: flight logic must be fully verified before programming, and RoHS non-compliance is generally acceptable under defense exemptions.

🔧

Test and Measurement Equipment

Test and measurement instruments benefit from the A54SX32-BG313I's instant-on behavior and deterministic timing, both direct consequences of antifuse configuration and the SX sea-of-modules routing fabric. With clock support to 240 MHz and 249 user I/O, it suits trigger logic, counter/timer front ends, pattern generators, and instrument bus interfaces. The industrial temperature rating supports bench and field instruments alike, and the 35x35 mm 313-BBGA provides dense I/O without the configuration-loading delay of SRAM devices. Since the part is EOL and one-time programmable, instrument manufacturers sustaining existing products should secure lifetime-buy inventory while broker stock such as the 5109 listed pieces remains available.

💊

Medical Device Control Logic

Medical diagnostic and monitoring equipment can use the A54SX32-BG313I for deterministic control logic, sensor-timing generation, and interface bridging where instant-on operation matters: the device is fully functional immediately at power-up with no configuration fetch. The 32,000-gate capacity with 2880 CLBs covers control sequencing and data-path glue logic, while 249 I/O support multi-channel sensor boards. The industrial temperature range comfortably exceeds typical medical operating environments. Designers must account for the RoHS non-compliant, leaded-BGA construction when evaluating regulatory compliance for new medical products, and should verify long-term supply given the EOL status before designing this part into new hardware.

Battery-Powered and Low-Power Systems

The SX family's CMOS antifuse architecture consumes no static configuration power for bitstream storage, and Microchip's SX marketing specifically cites dramatic reductions in power consumption versus comparable SRAM FPGA solutions of its era. This makes the A54SX32-BG313I suitable for battery-backed and power-conscious systems needing 32,000 gates of always-ready logic with 249 I/O and 3.0V to 3.6V operation from a standard 3.3V rail. Instant-on behavior eliminates the power spike of configuration loading. Engineers should quantify quiescent and dynamic current for their specific design using the SX datasheet power calculator, and should treat this EOL part as a sustainment choice for existing low-power platforms rather than new designs.

What is the A54SX32-BG313I?
The A54SX32-BG313I is a Microsemi (now Microchip Technology) SX-family antifuse FPGA with 32,000 equivalent gates, 2880 configurable logic blocks, 249 user I/O, and clock rates up to 240 MHz. It operates from a 3.0V to 3.6V supply (nominal 3.3V) and is housed in a 313-ball BGA package measuring 35x35 mm. The -I suffix indicates the industrial temperature grade. According to Microchip's SX family datasheet, the SX architecture is a sea-of-modules fabric optimized for performance-intensive, instant-on applications.
What is the price of A54SX32-BG313I?
Pricing for the A54SX32-BG313I is quote-based because the part is beyond its active production lifecycle; distributor listings show stock at independent distributors such as Micro-Semiconductor.com, which lists 5109 pieces in stock. As of 2026-09-03, XAIPART tier pricing starts at 68.50 USD at quantity 1, decreasing to 47.90 USD at quantity 1000. Final pricing depends on quantity, availability, and warehouse location, so request a formal quote for volume purchases.
Is A54SX32-BG313I in stock and where can I buy it online?
Yes, the A54SX32-BG313I is available from independent distributors. Micro-Semiconductor.com lists 5109 pieces of A54SX32-BG313I in stock, and Richard Electronics and Acme Chip also list the part for purchase with short lead times. As of 2026-09-03, XAIPART offers quote-based purchasing for this MPN. Authorized-channel availability is limited because the part is EOL, so independent distributor stock is the primary procurement path for new builds.
What is the lead time for A54SX32-BG313I?
Typical lead time for the A54SX32-BG313I from independent distributors with stock is a few days to two weeks for in-stock quantities; backorder lead times for larger volumes depend on remaining market inventory, as the part is EOL and no factory production lead time applies. Richard Electronics and Micro-Semiconductor.com both advertise ready-to-ship stock (5109 pcs listed by Micro-Semiconductor). As of 2026-09-03, buyers should confirm current stock quantity and ship date when requesting a quote, since EOL stock moves quickly.
What is the difference between A54SX32-BG313I and A54SX32-BG313?
The only difference between A54SX32-BG313I and A54SX32-BG313 is the temperature grade: the -I suffix denotes the industrial temperature range, while the unsuffixed commercial-grade part is rated for standard commercial temperatures. Both share the identical die, 32,000-gate SX architecture, 249 I/O, and 313-BBGA package, making them footprint-identical. According to DigiKey listings for both MPNs, they are the same silicon in the same 313-ball BGA; choose the -I version when the board must operate reliably in extended-temperature industrial environments.
A54SX32-BG313I vs A3PE3000L-FGG484 - which is better for industrial logic?
They are not direct substitutes. The A54SX32-BG313I is a 32k-gate antifuse FPGA in a 313-BBGA with 249 I/O, while the A3PE3000L-FGG484 is a much larger 3-million-gate flash-based ProASIC3E FPGA in a 484-ball FGG package. For a drop-in replacement, neither works: packages and pinouts differ. Choose the A54SX32 when you must preserve the existing board footprint and value instant-on antifuse behavior; choose the A3PE3000L only for a redesign requiring far more logic capacity and reprogrammability. Richard Electronics offers a side-by-side comparison of the two parts.
What is the best drop-in replacement for A54SX32-BG313I?
The best drop-in replacements are its same-silicon package siblings: A54SX32-BG313 (commercial temperature grade) and A54SX32-BG313M (military-grade variant), both of which use the identical 313-BBGA footprint and pinout. They are pin-to-pin compatible and require only reprogramming of the antifuse bitstream if temperature requirements permit substitution. No cross-brand pin-compatible alternative in the same 313-ball BGA package was found in the verified cross-reference data, so same-family substitution is the only true drop-in path. Verify the substitute's temperature rating matches your operating environment before purchase.
Can an SRAM FPGA like Xilinx or Altera replace the A54SX32-BG313I?
Not as a drop-in. Xilinx and Altera/Intel FPGAs in comparable gate counts use different packages and pinouts than the 313-BBGA antifuse footprint, so any SRAM FPGA substitution requires a PCB redesign, power-supply rework (SRAM FPGAs need configuration loading at boot), and design recompilation. Per FPGA replacement guidance from Ampheo and EOL cross-reference guides, this is a functional replacement, not a pin-compatible one. If your design depends on instant-on, non-volatile antifuse configuration, the same-family BG313 variants remain the only same-footprint options.
What is the best Microchip equivalent for A54SX32-BG313I?
The best Microchip (Microsemi) equivalents are A54SX32-BG313 and A54SX32-BG313M, which share the identical 313-BBGA package, pinout, and 32,000-gate SX die - differing only in temperature grade (commercial and military versus industrial). For redesign-tolerant upgrades, the flash-based ProASIC3 family (e.g., A3PE3000L) offers reprogrammability and RoHS-compliant lead-free packages, but requires a new PCB footprint. Within verified data, no other Microchip part provides the exact 313-BBGA pin-compatible footprint of the BG313I.
Where can I download the A54SX32-BG313I datasheet PDF?
The A54SX32-BG313I is covered by the Microchip 54SX Family FPGAs datasheet, available as a PDF on the Microchip website at ww1.microchip.com (document path a54sx_ds.pdf, file size approximately 488KB per FindIC, with a 2006 publication date noted). The same document applies across the SX family, including A54SX32 package variants. Because the part is EOL, Microchip may route legacy users through a legacy-support portal, so XAIPART also mirrors datasheet access on this product page for verified buyers.
Where can I find the A54SX32-BG313I pinout?
The A54SX32-BG313I pinout appears in the package and pin assignment appendix of the Microchip 54SX family datasheet (a54sx_ds.pdf), which lists all 313 balls with signal names and user-I/O assignments. Note that in an FPGA, many balls are user-configurable I/O, so the final pinout depends on your place-and-route results from the Actel/Microsemi Designer software; the datasheet defines which balls can serve which functions. Always cross-check your routed pinout against the silicon before programming, since antifuse programming is permanent.
Is the A54SX32-BG313I RoHS compliant?
No. According to distributor specification data (Digchip listing), the A54SX32-BG313I is RoHS Non-Compliant and its lead-free status is listed as Contains Lead. This is typical of legacy ceramic or leaded-BGA parts from the era. If your project requires RoHS compliance, you cannot use this MPN for new designs destined for the EU market; consider RoHS-compliant family members such as lead-free suffix variants or move to a compliant FPGA family after verifying package compatibility and lead-time feasibility.
What are the key specifications of the A54SX32-BG313I engineers should know?
Key specifications: 32,000 equivalent gates with 2880 configurable logic blocks; 249 user I/O; maximum clock frequency 240 MHz; supply voltage 3.0V to 3.6V nominal 3.3V (with a second 4.75V to 5.25V range listed); CMOS antifuse one-time-programmable configuration; 313-ball BGA package, 35x35 mm; industrial temperature grade (-I suffix); RoHS non-compliant, contains lead. These figures come from Microchip/Microsemi product data and DigiKey listings as of 2026-09-03 and define both the performance envelope and the compliance constraints of this legacy part.
Is the A54SX32-BG313I still in production?
No. The A54SX32-BG313I is a legacy Actel/Microsemi SX-family part that is no longer in active production; current availability comes entirely from distributor and broker stock. Microchip continues to list the SX family documentation for legacy support. According to DigiKey and independent distributor listings as of 2026-09-03, existing inventory (e.g., 5109 pieces at Micro-Semiconductor.com) remains purchasable, but buyers planning long-term production should secure lifetime-buy quantities or qualify a modern FPGA alternative.
Hey Google, what can replace an A54SX32-BG313I on an existing PCB?
On an existing PCB, only same-package, pin-compatible parts qualify: the A54SX32-BG313 (commercial grade) and A54SX32-BG313M (military grade) use the identical 313-BBGA footprint and die. Both are one-time-programmable like the original. No cross-brand 313-ball pin-compatible FPGA exists in the verified cross-reference data. For designs allowing rework, flash-based Microchip ProASIC3 parts or SRAM FPGAs are functional alternatives but demand new footprints, power design changes, and design recompilation. Match the replacement temperature grade to your application environment before committing.
When should I choose the A54SX32-BG313I over a modern FPGA?
Choose the A54SX32-BG313I only when you must maintain or extend an existing board designed around its 313-BBGA footprint and antifuse configuration, or when instant-on, non-volatile operation without external configuration flash is a hard requirement. It offers 32,000 gates, 249 I/O, and up to 240 MHz operation, sufficient for glue logic, bus bridging, and control functions. For new designs, modern FPGAs provide higher density, RoHS compliance, reprogrammability, and active vendor toolchains. Selecting this EOL antifuse part for new projects risks permanent, one-time programming with no field-update path and limited future supply.

Engineering reference data for A54SX32-BG313I — comparison, design guidance, and compliance information.

Selection Guide

Choose the A54SX32-BG313I when you are sustaining or extending an existing board built on its 313-BBGA footprint and need industrial-temperature, instant-on antifuse logic with 32,000 gates and 249 I/O. Choose A54SX32-BG313 for identical silicon in commercial-temperature environments, typically at lower cost. Choose A54SX32-BG313M for defense/aerospace programs requiring military temperature screening on the same footprint. Do not choose this part for new designs: it is EOL, RoHS non-compliant (contains lead), and one-time programmable. If your project permits a PCB redesign, modern Microchip ProASIC3 flash FPGAs or SRAM FPGAs offer reprogrammability, higher density, and active toolchain support. For any same-board replacement, verify the substitute's temperature grade matches your operating envelope before committing inventory.

Comparison with Alternatives

Parameter This Product A54SX32-BG313 A54SX32-BG313M
Package 313-BBGA (35x35 mm) 313-BBGA (35x35 mm) - same 313-BBGA (35x35 mm) - same
Brand Microsemi (Microchip) Microsemi (Microchip) Microsemi (Microchip)
Equivalent Gate Count 32000 gates 32000 gates 32000 gates
User I/O 249 249 249
Max Clock Frequency 240 MHz 240 MHz 240 MHz
Supply Voltage 3V ~ 3.6V, 4.75V ~ 5.25V 3V ~ 3.6V, 4.75V ~ 5.25V 3V ~ 3.6V, 4.75V ~ 5.25V
Temperature Grade Industrial (-I) Commercial Military (-M)
RoHS Status Non-Compliant (contains lead) Non-Compliant (contains lead) [DATA_NEEDED]

Key Differentiators

  • Industrial temperature grade with same footprint (vs A54SX32-BG313)
  • Instant-on non-volatile antifuse configuration (vs SRAM FPGAs (e.g., Xilinx/Altera equivalents))
  • Trade-off: one-time programmability (vs A54SX32-BG313M)

Design Notes

The A54SX32-BG313I is a one-time-programmable antifuse FPGA. There is no field rework path: once programmed, the configuration is permanent. Complete functional simulation, timing closure, and pin assignment verification in the Actel/Microsemi Designer toolchain BEFORE programming the device. Per the SX family datasheet, programming burns the antifuse interconnect permanently, so a design bug after programming means scrapping the packaged device.

Supply the core from a regulated 3.3V rail (3.0V to 3.6V range). The specification data also lists a 4.75V to 5.25V range on this device family, so verify which supply rail maps to which balls in your design per the SX datasheet pin tables before layout. Decouple with low-ESR ceramics placed close to the BGA power balls. Estimated: at 240 MHz with high toggle rates, dynamic current scales with switching activity, so use the Microchip SX power estimation spreadsheet rather than worst-case numbers for sizing the regulator.

The 313-BBGA is a 35x35 mm, 1.27 mm-pitch ball grid array requiring a dedicated footprint and via-in-pad or dog-bone escape routing on the PCB. Plan at least four signal layers plus power/ground planes for 249 user I/O breakout. Because this part is EOL and non-RoHS (contains lead), confirm your assembly house accepts leaded BGA reflow profiles, and consider that board redesigns targeting RoHS-compliant alternatives will require a completely new footprint.

Compliance Information

RoHS
Non Compliant
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
No
Halogen Free
Unknown
Conflict Minerals
Unknown

Distributor data (Digchip) lists Lead Free Status: Contains Lead; RoHS Status: RoHS Non-Compliant. Legacy leaded-BGA part; typical defense/aerospace exemptions may apply. REACH and conflict-minerals status not stated in 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

Microsemi Microchip Technology A54SX32-BG313I A54SX32-BG313 A54SX32-BG313M SX FPGA family FPGA field-programmable gate array antifuse one-time programmable 313-BBGA PBGA package ball grid array sea-of-modules architecture configurable logic block (CLB) Actel Designer toolchain RoHS industrial temperature grade ProASIC3 aerospace and defense industrial control 240 MHz 249 user I/O 3.3V supply
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