A54SX08-TQG144I - SX FPGA 12K Gates 144-TQFP | Microsemi
MPN: A54SX08-TQG144I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
Drop-in alternatives for A54SX08-TQG144I — 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-TQG144
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX08-1TQG144I
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX32-TQG144I
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$32.3 / Unit
View Datasheet →A54SX32-2TQG144I
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$45.6 / Unit
View Datasheet →A54SX08-TQG144I Maximum Ratings & Electrical Characteristics
| Family | Actel SX (54SX) |
| Number of Gates | 12000 |
| Number of LABs/CLBs | 768 |
| Number of Logic Cells | 512 |
| Number of I/O | 113 |
| Max System Frequency | 240 MHz |
| Process Technology | 0.35 um |
| Supply Voltage (Core) | 3 V to 3.6 V |
| Supply Voltage (I/O) | 4.75 V to 5.25 V |
| Logic Technology | Antifuse (one-time programmable) |
| Package / Case | 144-LQFP (144-TQFP, 20x20 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (TA), industrial grade |
| Packaging | Tray |
| Base Product Number | A54SX08 |
| Speed Grade Suffix | Standard (no dash-number speed grade) |
| Programming Type | In-system antifuse programming |
A54SX08-TQG144I 144-lqfp (144-tqfp, 20x20 mm) Pin Configuration Guide
Complete pinout information for A54SX08-TQG144I (144-lqfp (144-tqfp, 20x20 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 A54SX08-TQG144I.
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-TQG144I is suitable for 6 applications: Industrial Control and Automation, Aerospace and Defense Subsystems, Telecommunications Line Cards, Processor/Peripheral Bridge and Glue Logic, Test and Measurement Instrumentation, Legacy System Sustainment and Obsolescence Redesign.
Industrial Control and Automation
The A54SX08-TQG144I fits industrial controllers because its 113 user I/O, 5V-tolerant I/O supply (4.75V-5.25V), and -40C to +85C industrial rating match the electrical and environmental reality of factory-floor equipment. In a PLC I/O card it implements state machines, encoder decoding, and bus glue logic between a microprocessor and field-side drivers. The antifuse fabric powers up instantly with no configuration device, an important reliability benefit for equipment that must be operational at power-on. Place the device on the standard 144-TQFP footprint with 0.1 uF decoupling per supply pin pair; the 3.3V core keeps dynamic power moderate even with many I/O toggling at industrial clock rates of 20-40 MHz.
Recommended
Aerospace and Defense Subsystems
The A54SX08-TQG144I suits aerospace and defense subsystems because the Actel antifuse architecture is inherently resistant to configuration upsets: there is no SRAM configuration cell to flip under radiation, and the programmed bitstream cannot be read back, providing design security. Its instant-on behavior eliminates boot-time configuration windows in systems with strict time-to-operate requirements. In satellite and avionics heritage designs, the 12,000-gate SX08 integrates telemetry formatting, bus interfaces, and voting logic that previously required multiple PAL/GAL devices. Verify the specific screening level (standard industrial -40C to +85C versus military variants) for your program; the TQG144I ordering code is the industrial grade, and higher-reliability flow variants are ordered under different suffixes.
Recommended
Telecommunications Line Cards
Telecom line cards benefit from the A54SX08-TQG144I's combination of 113 I/O, 240 MHz-class fabric performance, and 5V I/O compatibility with legacy backplane signaling. The SX family's sea-of-modules architecture provides deterministic, ASIC-like routing delays, which simplifies timing closure for framing, error detection, and backplane handshake logic that must meet fixed slot-timing budgets. Because the device is one-time programmable, deployed line cards cannot be corrupted by configuration errors in the field, reducing service dispatches. Use the 3.3V core supply from the card's main rail through local ferrite-bead filtering, and assign I/O banks to respect the 5V (4.75V-5.25V) VCCI domain for the legacy backplane side of the interface.
Recommended
Processor/Peripheral Bridge and Glue Logic
As a bridge between processors and peripherals, the A54SX08-TQG144I consolidates address decoding, wait-state generation, interrupt aggregation, and bus-width conversion that would otherwise occupy several discrete logic devices. With 12,000 gates and 768 LABs, a typical design integrates a 16-bit or 32-bit local-bus decoder plus UART handshake and general-purpose chip selects with substantial margin. The dual-supply architecture is the decisive advantage here: the core runs at 3.3V (3V-3.6V) while I/O operate at 5V (4.75V-5.25V), letting the FPGA sit directly between a modern 3.3V processor and legacy 5V peripherals without level shifters. The antifuse fabric's fixed routing delays make bus timing analysis deterministic rather than dependent on software routing.
Recommended
Test and Measurement Instrumentation
Bench and rack instrumentation uses the A54SX08-TQG144I for timing generators, trigger logic, and counter/timer functions where deterministic propagation delay matters. The SX family's 240 MHz-class fabric supports sub-10 ns timing resolution in dedicated counter chains, and the 113 I/O accommodate multi-channel trigger and sense lines on a single 144-TQFP device. The industrial -40C to +85C rating permits use in instruments deployed in unconditioned environments, while the antifuse one-time programming guarantees the instrument's calibration-related logic cannot drift or be reconfigured accidentally. Implement clock-conditioning and synchronizer stages with registered I/O, and budget for the 0.35 um process technology's static timing in high-frequency paths using Microchip's Designer timing reports.
Recommended
Legacy System Sustainment and Obsolescence Redesign
Sustainment engineers use the A54SX08-TQG144I to keep legacy platforms alive: its direct 5V I/O interface, one-time-programmable security, and long Microchip lifecycle commitment make it a natural replacement for exhausted PAL/GAL/EPLD and 5V ASIC sockets. A single SX08 integrates dozens of 22V10-class devices, shrinking board area and eliminating multi-source risk on discontinued glue logic. The 144-TQFP footprint is straightforward for new PCB spins, and pin-compatible same-package alternatives (A54SX32-TQG144I for more capacity, A54SX08-1TQG144I for faster speed grades) provide second sources within the same footprint, de-risking future supply. Because programming is permanent, retain the programming file under configuration management alongside the design archive.
Recommended
Recommended Products Summary
Engineering reference data for A54SX08-TQG144I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX08-TQG144 | A54SX08-1TQG144I | A54SX32-TQG144I | A54SX32-2TQG144I |
|---|---|---|---|---|---|
| Brand | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) |
| Package | 144-TQFP (20x20 mm) | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same |
| Number of Gates | 12000 | 12000 | 12000 | 36000 (SX32, higher density) | 36000 (SX32, higher density) |
| Number of I/O | 113 | 113 | 113 | [DATA_NEEDED] | [DATA_NEEDED] |
| Operating Temperature | -40C to +85C (industrial) | 0C to +70C (commercial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Speed Grade | Standard | Standard | -1 (faster) | Standard | -2 (fastest in family) |
| Supply Voltage | 3V-3.6V core, 4.75V-5.25V I/O | 3V-3.6V core, 4.75V-5.25V I/O | 3V-3.6V core, 4.75V-5.25V I/O | 3V-3.6V core, 4.75V-5.25V I/O | 3V-3.6V core, 4.75V-5.25V I/O |
| Logic Technology | Antifuse (one-time programmable) | Antifuse (one-time programmable) | Antifuse (one-time programmable) | Antifuse (one-time programmable) | Antifuse (one-time programmable) |
| Price (Qty 1) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Industrial temperature grade for harsh environments (vs A54SX08-TQG144)
- Lower cost at equal logic capacity (vs A54SX08-1TQG144I)
- Sufficient density at lowest family cost point (vs A54SX32-TQG144I)
Design Notes
The A54SX08-TQG144I requires two supply domains: 3V-3.6V for the core and 4.75V-5.25V for I/O. Decouple each domain with at least 0.1 uF ceramic per supply pin pair plus 10 uF bulk per rail, placed within a few millimeters of the package. Because the antifuse fabric is nonvolatile, inrush is governed only by decoupling capacitance - there is no configuration-current spike as on SRAM FPGAs, simplifying the power-supply design. Estimated: with 113 I/O toggling, dynamic current is dominated by I/O load capacitance and switching frequency; budget per the 54SX datasheet power estimator rather than assuming SRAM-FPGA-level currents.
The single most costly mistake with this device is treating it as reprogrammable: the antifuse fabric is one-time programmable, so a mis-programmed device must be scrapped. Complete full functional simulation and timing-verified gate-level signoff in Actel Designer/Libero before programming, and lock pin assignments early because the 144-TQFP footprint cannot absorb late changes. Also confirm the temperature suffix on purchase orders: A54SX08-TQG144I (-40C to +85C industrial) versus A54SX08-TQG144 (0C to +70C commercial) are not interchangeable in environmentally stressed designs.
For the 144-TQFP (20x20 mm, 0.5 mm pitch) footprint, follow the land-pattern dimensions in the Microchip 54SX datasheet mechanical drawing and use a solder-mask-defined pad geometry to improve self-alignment during reflow. Keep the 5V I/O domain traces away from sensitive 3.3V core/analog traces, and provide a solid ground plane to return the relatively high transient currents of 5V logic edges. Allow thermal relief per JEDEC TQFP practice; the 20x20 mm body at 12k-gate density dissipates modest power, so no heatsink is required under normal conditions.
Compliance Information
Verified web data does not state RoHS/REACH status for this exact ordering code; legacy Actel parts exist in both SnPb and Pb-free suffixes. Request a material declaration from Microchip or the distributor before compliance-dependent production use.
