A54SX08-FG144I - 8K Gate SX FPGA 144-FBGA | Microchip
MPN: A54SX08-FG144I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $137.23 | $137.23 |
| 10 | $130.37 | $1,303.70 |
| 100 | $123.51 | $12,351.00 |
| 500 | $116.65 | $58,325.00 |
| 1,000 | $109.79 | $109,790.00 |
Drop-in alternatives for A54SX08-FG144I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX08-FGG144I
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View Datasheet →A54SX08-2FGG144I
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View Datasheet →A54SX08-2FGG144
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View Datasheet →A54SX08-FGG144
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$49.75 / Unit
View Datasheet →A54SX08A-FG144I
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX08-FG144I Maximum Ratings & Electrical Characteristics
| Family | Actel SX (54SX) |
| System Gates | 8000 |
| Logic Cells | 512 |
| Maximum System Frequency | 240 MHz |
| Process Technology | 0.35 um CMOS |
| Core Supply Voltage | 3.3 V |
| I/O Voltage Support | 3.3 V / 5 V tolerant |
| Number of User I/O | 111 |
| Package | 144-Ball FBGA (FG144) |
| Programming Technology | Antifuse (one-time programmable, non-volatile) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) |
| Configuration | Live at power-up (no boot device required) |
A54SX08-FG144I 144-ball fbga (fg144) Pin Configuration Guide
Complete pinout information for A54SX08-FG144I (144-ball fbga (fg144) 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-FG144I.
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-FG144I is suitable for 6 applications: Industrial Control and Automation, Avionics and Defense Subsystems, Telecommunications Line Cards, Legacy System Redesign and BOM Rescue, Bus Interface and Bridge Logic, Secure Instant-On Control Logic.
Industrial Control and Automation
The A54SX08-FG144I fits industrial PLC I/O modules, motor-control sequencing, and machine-state logic where deterministic, instant-on operation is mandatory. Its 240 MHz class performance handles fast parallel datapaths, while 111 user I/O at 3.3V with 5V tolerance directly interfaces legacy 24V-logic threshold circuitry through standard level-shifting front ends. Because the antifuse configuration is non-volatile, the FPGA is functional the instant power is applied - no boot delay or configuration corruption risk in noisy factory power environments. The -40C to +85C industrial rating covers unconditioned cabinets. Trade-off: OTP programming means design changes require new silicon, so freeze the design before volume builds.
Recommended
Avionics and Defense Subsystems
Actel antifuse FPGAs are a historic mainstay of defense and avionics electronics, and the A54SX08-FG144I continues that role in legacy platform sustainment. The antifuse fabric contains no configuration memory that can be read back or upset by single-event effects in the same manner as SRAM cells, giving inherent design security and configuration robustness. The 144-ball FBGA supports conformal-coated, vibration-tolerant assembly, and the industrial -40C to +85C rating covers many flight-deck and ground-system environments. Typical uses include MIL-STD-1553-style bus glue logic, discrete-to-digital conversion, and signal-conditioning pipelines. OTP limitation requires strict configuration control of the programming file across the program lifecycle.
Recommended
Telecommunications Line Cards
In telecom backplane and line-card designs, the A54SX08-FG144I implements frame-format glue logic, alarm aggregation, and parallel bus bridging at line rates supported by its 240 MHz-class fabric. The sea-of-modules architecture provides predictable pin-to-pin delays, simplifying timing closure on wide parallel buses across the 111 user I/O. 5V-tolerant inputs ease interfacing with older 5V line-card components while the core runs at 3.3V, reducing power. The 144-FBGA footprint keeps parasitic inductance low for signal integrity on high-speed nets. Designers should budget simultaneous-switching-output analysis on wide buses and use the datasheet IBIS-class models for stub and reflection verification.
Recommended
Legacy System Redesign and BOM Rescue
A primary modern use of the A54SX08-FG144I is life-cycle extension of systems originally designed around the Actel SX family. When the original programmed devices become unavailable, the same SX08 die in FGG144 ordering variants provides a footprint-identical reprogramming path: the archived design database is re-imported into Microchip Libero/Actel Designer, re-implemented for the chosen speed grade, and burned into a fresh antifuse device. This avoids PCB respin entirely. Procurement teams should archive the original fuse files and design source; engineers should confirm programmer compatibility with the FGG suffix. This makes the part a strategic sustainment component rather than a new-design selection.
Recommended
Bus Interface and Bridge Logic
The A54SX08-FG144I is well suited to protocol conversion tasks such as PCI-to-local-bus bridges, dual-port memory arbitration, and wide parallel-bus translators. The 512 C-cell/R-cell fabric accommodates state machines and address decoders, while the registered R-cells support synchronous pipeline stages at the 240 MHz-class internal rates. 5V-tolerant I/O in 3.3V mode lets one device bridge legacy 5V buses to modern 3.3V subsystems without external clamping. Non-volatile antifuse configuration removes the boot-BROM complexity SRAM FPGAs add to bridge circuits. Designers should verify setup/hold budgets against the family timing model and reserve margin for worst-case industrial temperature corners.
Recommended
Secure Instant-On Control Logic
Applications requiring power-up-immediate operation and configuration confidentiality - such as secure authentication front ends, encryption key handling glue logic, and tamper-responsive controllers - benefit from the A54SX08-FG144I's antifuse nature. There is no bitstream in external flash to intercept, no configuration readback port, and no boot interval during which the logic is in a default-vulnerable state. The device begins executing its permanent configuration within microseconds of power ramp, supporting supervisor and safety-interlock functions. The 144-FBGA package's buried-ball connections also complicate casual board probing compared with gull-wing packages, adding a modest physical-security margin.
Recommended
Recommended Products Summary
Engineering reference data for A54SX08-FG144I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX08-FGG144I | A54SX08-2FGG144I | A54SX08-FGG144 | A54SX08A-FG144I | A54SX08-TQG144I |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 144-FBGA (FG144) | 144-FBGA (FGG144) - same footprint | 144-FBGA (FGG144) - same footprint | 144-FBGA (FGG144) - same footprint | 144-LBGA/FBGA - footprint-compatible family | 144-TQFP - NOT footprint compatible |
| System Gates | 8000 | 8000 | 8000 | 8000 | 8000 (SX-A class) | 8000 |
| Logic Cells | 512 | 512 | 512 | 512 | [DATA_NEEDED] | 512 |
| User I/O | 111 | 111 | 111 | 111 | 111 | [DATA_NEEDED] |
| Max Frequency | 240 MHz class | 240 MHz class (standard speed grade) | Higher (speed grade -2) | 240 MHz class (standard speed grade) | Higher (SX-A faster fabric) | 240 MHz class |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Supply Voltage | 3.3 V core / 5 V-tolerant I/O | 3.3 V core / 5 V-tolerant I/O | 3.3 V core / 5 V-tolerant I/O | 3.3 V core / 5 V-tolerant I/O | 3.3 V core / 5 V-tolerant I/O | 3.3 V core / 5 V-tolerant I/O |
| Reference Unit Price (qty 1) | $137.23 (as of 2026-09-03) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Non-volatile antifuse configuration - no boot PROM needed (vs SRAM FPGAs (Xilinx/Intel equivalents))
- 5V-tolerant I/O on a 3.3V core (vs A54SX08A-FG144I (SX-A))
- Footprint-identical sustainment path within the same die family (vs A54SX08-TQG144I)
Design Notes
Antifuse FPGAs are one-time programmable: a design change after programming requires a brand-new physical device. Always complete full functional simulation, static timing analysis at worst-case industrial corners (-40C and +85C), and a programming-file audit before committing devices. Archive the source design, implementation database, and fuse file under configuration control - the fuse file is the only artifact that can reproduce an identical programmed part for sustainment builds.
For the 144-FBGA footprint, define the land pattern per the package drawing in the Microchip 54SX family datasheet and confirm whether your board uses the FG or FGG ball-pad variant before release - the two ordering codes differ in pad geometry. Via-in-pad or dogbone fan-out is typical at the ball pitch; keep breakout trace impedance controlled on high-speed nets. Verify the package outline and ball map against the datasheet revision matching your lot, since legacy package drawings have had multiple revisions.
The SX08 runs a single 3.3V supply for core and I/O in typical configurations, with I/O 5V-tolerant but not 5V-powered. Decouple with a bulk 10 uF capacitor plus 0.1 uF ceramics at each supply ball group. Because antifuse devices draw no configuration current and have no boot surge, inrush is governed only by I/O switching - simplify the power-up supervisor accordingly. Estimated: with 111 I/O switching at moderate rates, dynamic power dominates; use the Actel Designer power estimator with your actual toggle rates rather than worst-case datasheet numbers.
Compliance Information
Compliance data was not present in the provided web data for this legacy part. Verify RoHS/REACH status with Microchip product pages or distributor compliance certificates before export-controlled or EU-bound builds.
