A54SX32A-2PQG208I - 48K Gate FPGA, 208-PQFP | Microchip
MPN: A54SX32A-2PQG208I ✓ Active| 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 | $47.95 | $47,950.00 |
A54SX32A-2PQG208I Overview
An antifuse FPGA is a type of field-programmable gate array whose programmable interconnects are permanently formed at programming time by dielectric breakdown. Unlike SRAM-based FPGAs (Xilinx Virtex, Intel/Altera Cyclone), antifuse programming is one-time and non-volatile, giving the device instant-on behavior, no configuration memory to upset, and strong resistance to readout - which is why the SX-A family is widely used in secure, low-power, and cost-sensitive applications.
Key features include 48K system gates on a 0.25 um CMOS process, a -2 speed grade supporting internal clock rates up to 313 MHz, a wide supply window listed as 2.25 V to 5.25 V for I/O operation (2.5 V core), and industrial temperature range compliance. The 174 available user I/Os and 208-pin PQFP footprint support mid-density glue logic, bus bridging, and control-plane integration on a single chip, replacing multiple discrete logic devices and reducing board cost.
Architecturally, the SX-A uses a sea-of-modules structure with fast, predictable routing, enabling timing-driven designs without the configuration-loading overhead of SRAM FPGAs. Low standby power and permanent antifuse interconnect make the A54SX32A suitable for systems where configuration data security and instant power-up are priorities.
Typical applications include industrial automation controllers, communication line cards, military and avionics subsystems, test and measurement instrumentation, and legacy system sustainment where the 208-PQFP footprint must be retained. The device integrates address decoders, state machines, bus interfaces, and control sequencing previously split across many 7400-series devices.
A key design consideration is that antifuse FPGAs are one-time programmable: the design must be fully verified in simulation (using Libero SoC or Actel legacy toolchains) before programming, and design changes require a new device.
This page synthesizes distributor pricing, drop-in alternatives, package information, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for A54SX32A-2PQG208I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with A54SX32A-2PQG208I (same form factor and footprint) — differing in Package, System Gates, Operating Temperature, Process Technology, Core Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
A54SX32A-PQG208I
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX32A-1PQG208I
✅ Drop-In✓ In Stock
$44.75 / Unit
View Datasheet →A54SX32A-PQG208M
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →A54SX32A-PQG208A
✅ Drop-In✓ In Stock
$47.8 / Unit
View Datasheet →A54SX32A-2PQG208
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX32-2PQG208I
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →A54SX32A-2PQG208I Maximum Ratings & Electrical Characteristics
| Family | SX-A (antifuse FPGA) |
| System Gates | 48000 gates |
| Logic Blocks (CLBs) | 2880 |
| Maximum System Frequency | 313 MHz |
| User I/O | 174 |
| Speed Grade | -2 |
| Supply Voltage | 2.25 V to 5.25 V |
| Core Technology | 0.25 um CMOS, antifuse |
| Operating Temperature | -40C to +85C (TA) |
| Package | 208-BFQFP (208-PQFP, 28x28 mm) |
| Mounting Type | Surface Mount |
| Programmability | One-Time Programmable (antifuse) |
| Packaging | Tray |
| Manufacturer Lead Time | 12 weeks |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
A54SX32A-2PQG208I 208-bfqfp (208-pqfp, 28x28 mm) Pin Configuration Guide
Pin configuration for A54SX32A-2PQG208I (208-bfqfp (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 A54SX32A-2PQG208I.
Refer to the datasheet for full pin configuration.
Typical Applications
A54SX32A-2PQG208I is suitable for 6 applications: Industrial Automation Controllers, Defense and Avionics Subsystems, Communications Line Cards, Test and Measurement Instrumentation, Legacy System Sustainment, Secure Control and Encryption Key Handling Logic.
Industrial Automation Controllers
The A54SX32A-2PQG208I fits industrial controller designs that need deterministic glue logic, bus bridging, and state-machine control with instant-on behavior. Its 48,000 gates and 2,880 CLBs integrate address decoding, I/O expansion, and sequencing logic that would otherwise consume dozens of discrete CMOS devices, cutting BOM count and board area. The -40C to +85C industrial temperature rating and ROHS3 compliance suit factory-floor equipment. Because the antifuse fabric is non-volatile, the controller is fully operational within microseconds of power application - no configuration load time, which matters in machinery with strict start-up sequencing. Place the 208-PQFP with standard surface-mount assembly; no firmware flash is needed, reducing failure modes in electrically noisy plant environments.
Recommended
Defense and Avionics Subsystems
Antifuse FPGAs like the A54SX32A-2PQG208I are a mainstay in defense and avionics hardware because the programmed interconnect cannot be read back or disturbed by single-event effects on configuration memory. The 48K-gate fabric handles protocol bridging, bus arbitration, and control sequencing on line-replaceable units, while the wide -40C to +85C temperature range covers most conduction-cooled environments. The permanent programming also eliminates configuration-storage devices, improving reliability prediction (MTBF) figures. Design teams typically lock the fuse file under configuration control and verify the design exhaustively in Libero SoC before programming. Note the 12-week manufacturer lead time when scheduling platform maintenance builds, and consider the M-screened A54SX32A-PQG208M variant where additional screening is specified.
Recommended
Communications Line Cards
In telecom and datacom line cards, the A54SX32A-2PQG208I provides 174 user I/Os for backplane interfacing, framing logic, and crossbar-style glue functions at up to 313 MHz internal rates on the -2 speed grade. The sea-of-modules routing architecture gives predictable timing, important when interfacing to fixed-latency SONET/Ethernet framer devices. Antifuse instant-on operation lets the card enumerate before host software queries it, simplifying hot-swap and reset sequencing. Low standby power reduces shelf power draw in redundant-card configurations. When populating a line card today, verify stock first, since the 12-week factory lead time can hold up a card build; the pin-compatible A54SX32A-PQG208I can cover designs with relaxed timing.
Recommended
Test and Measurement Instrumentation
Bench and automated test instruments use the A54SX32A-2PQG208I for trigger logic, counter/timer front ends, and instrument bus interfaces. The -2 speed grade supports internal clocking to 313 MHz, adequate for high-resolution event counting and timing-skew measurements, while 174 I/Os fan out to relay banks, ADCs, and display controllers. Because the design is permanently programmed, measurement repeatability is guaranteed across power cycles - there is no bitstream version ambiguity between instruments on a production line. The device integrates cleanly with Microcontroller or CPU-based control loops over parallel buses. Designers should budget simulation time before programming since antifuse devices cannot be reworked; keep a spare programmed device per instrument revision as sustainment insurance.
Recommended
Legacy System Sustainment
A primary modern use of the A54SX32A-2PQG208I is sustainment of legacy designs originally built around Actel SX/SX-A devices. Because Microchip continues active production (status Active, 12-week lead time as of 2026-09-03), boards using the 208-PQFP footprint can be kept in build without redesign. The pin-compatible family spanning commercial (A54SX32A-2PQG208), industrial (this part, -I suffix), and M-screened grades lets buyers match the original procurement specification exactly. For obsolete SX-family boards, the A54SX32-2PQG208I cross-reference can sometimes be bridged within the same 208-pin PQFP footprint, though gate count and timing differ and re-verification is required. Keep fuse files archived for reprogramming continuity.
Recommended
Secure Control and Encryption Key Handling Logic
The A54SX32A-2PQG208I suits secure control logic where the design must not be extractable: antifuse configuration leaves no readable bitstream, and no external configuration flash exists to clone or corrupt. Typical roles include key-management state machines, tamper-response sequencing, and board authentication glue between a secure MCU and backplane electronics. The 48K gates accommodate AES-round datapaths at modest throughput or more extensive non-cryptographic security logic. Industrial temperature range and ROHS3 compliance support commercial security appliances. Designers should note that the wide 2.25 V to 5.25 V supply listing applies to the device's I/O operating envelope; consult the Microchip SX-A datasheet for core supply details, and apply the usual controlled-firmware practices to the fuse file itself.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32A-2PQG208I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32A-PQG208I | A54SX32A-1PQG208I | A54SX32A-PQG208M | A54SX32A-PQG208A | A54SX32A-2PQG208 |
|---|---|---|---|---|---|---|
| Package | 208-BFQFP (PQFP, 28x28 mm) | 208-BFQFP - same | 208-BFQFP - same | 208-BFQFP - same | 208-BFQFP - same | 208-BFQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 48000 | 48000 | 48000 | 48000 | 48000 | 48000 |
| Logic Blocks (CLBs) | 2880 | 2880 | 2880 | 2880 | 2880 | 2880 |
| Maximum Frequency | 313 MHz | 278 MHz | 278 MHz | 278 MHz | 278 MHz | 313 MHz |
| User I/O | 174 | 174 | 174 | 174 | 174 | 174 |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | M-screened variant | A-screened variant | 0C to +70C (commercial) |
Key Differentiators
- Fastest -2 speed grade in the 208-PQFP 32K-gate family (vs A54SX32A-PQG208I)
- Industrial temperature rating (vs A54SX32A-2PQG208)
- Non-volatile antifuse fabric with no configuration device (vs A54SX32-2PQG208I (legacy SX))
Design Notes
The A54SX32A-2PQG208I is one-time programmable (antifuse). Complete full functional simulation, timing closure, and design review in Libero SoC before programming; a design change after fuse blowing requires a new physical device. Archive the fuse file under configuration control so replacement units can be programmed identically, which is essential for multi-year production and repair spares in industrial and defense builds.
The listed supply window spans 2.25 V to 5.25 V, reflecting the SX-A I/O operating envelope across VCCI options; the internal core operates at its nominal family supply per the Microchip SX-A datasheet. Decouple all VCC/VCCI pins individually with 0.1 uF ceramics close to each pin pair on the 208-PQFP, plus bulk 10 uF per supply rail. Since antifuse FPGAs are non-volatile, there is no configuration power surge at startup - but I/O switching currents on 174 outputs still require a solid ground return.
The 208-pin PQFP has a 0.5 mm lead pitch, requiring solder-paste printing inspection and careful reflow profiling to avoid bridging on fine-pitch leads. Maintain at least 3-4 mil annular clearance on fanout vias and follow the standard PQFP land pattern from IPC-compliant footprint calculators. Corner leads should include dummy copper thieving for paste uniformity. The 28x28 mm body needs no heatsink but keep thermal relief under the package center for hot-spot dissipation on high-toggling designs.
With 174 user I/Os and up to 313 MHz internal clocking, group high-fanout clock nets onto dedicated clock-capable pins listed in the SX-A datasheet pin tables. Keep stub lengths short on the 0.5 mm-pitch PQFP escape routing, and series-terminate heavily loaded output buses (33-50 ohm) to control ringing at the receiver. Refer to Microchip SX-A family application notes for I/O banking and VCCI assignment rules before finalizing the stackup.
Compliance Information
ROHS3 Compliant per Microchip USA distributor data. Lead-free implied by ROHS3 status. REACH, halogen-free, and conflict-minerals status not stated in provided data.
