A54SX08-2FG144 - 8K-Gate SX FPGA 320MHz 144-FBGA | Microchip
MPN: A54SX08-2FG144 ✓ Active| Qty | Unit Price | Extended |
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Drop-in alternatives for A54SX08-2FG144 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX08-2FG144I
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$30.5 / Unit
View Datasheet →A54SX08-2FGG144
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$38.5 / Unit
View Datasheet →A54SX08-2FGG144I
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View Datasheet →A54SX08-FG144
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$109.78 / Unit
View Datasheet →A54SX08-FG144I
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$109.79 / Unit
View Datasheet →A54SX08-PFGG144
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A54SX08-2FG144 Maximum Ratings & Electrical Characteristics
| Family | Actel SX-A (SX) |
| Equivalent System Gates | 8000 |
| System Gates (max) | 12000 |
| Configurable Logic Blocks (CLBs) | 768 |
| Logic Cells | 512 |
| User I/O | 111 |
| Maximum Frequency | 320 MHz |
| Minimum Pin-to-Pin Propagation Delay | 0.4 ns (FastConnect) |
| Process Technology | 0.35 um CMOS |
| Supply Voltage | 3.3 V / 5 V |
| Programming Technology | Antifuse (one-time programmable) |
| Speed Grade | -2 |
| Package | 144-ball FBGA, 12 x 12 mm, 1.00 mm pitch |
| Mounting Type | Surface Mount |
A54SX08-2FG144 144-ball fbga, 12 x 12 mm, 1.00 mm pitch Pin Configuration Guide
Complete pinout information for A54SX08-2FG144 (144-ball fbga, 12 x 12 mm, 1.00 mm pitch 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 A54SX08-2FG144.
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
A54SX08-2FG144 is suitable for 6 applications: Glue Logic Consolidation, Industrial Control and Automation, Communications Line Cards, Aerospace and Defense Legacy Subsystems, Test and Measurement Instrumentation, Medical Device Interface Electronics.
Glue Logic Consolidation
The A54SX08-2FG144 replaces dozens of 74-series SSI/MSI devices in board-level interconnect, decoding, and bus-matching roles. Its 8,000 equivalent gates and 768 CLBs absorb address decoders, bus transceivers, and state elements into one 12 x 12 mm FBGA, cutting BOM count and assembly cost, while the 0.4 ns FastConnect pin-to-pin delay preserves the timing margins that discrete TTL paths previously provided. Because the antifuse fabric is nonvolatile and instant-on, the consolidated logic works from the first clock cycle with no configuration loader, matching the behavior of the discrete parts it replaces. At 3.3V or 5V I/O operation, it interfaces directly with legacy 5V buses, a capability modern SRAM FPGAs often lack.
Recommended
Industrial Control and Automation
In PLC I/O modules, motor-control sequencing, and machine-state supervision, the A54SX08-2FG144 implements deterministic control state machines at up to 320 MHz internal toggle rates, far beyond MCU software loops. The antifuse configuration cannot be corrupted by brownouts or EMI events on the factory floor - a frequent failure mode for SRAM FPGAs that lose or corrupt configuration data. With 111 user I/Os in a 1.00 mm-pitch 144-FBGA, designers can terminate encoders, limit switches, and fieldbus transceivers directly. For harsh-temperature cabinets, the A54SX08-2FG144I industrial-grade variant is a pin-identical substitution; both parts are designed with the Libero flow and verified via timing simulation before OTP programming.
Recommended
Communications Line Cards
Telecom and datacom line cards of the SX-A era used SX FPGAs for framing, multiplexing, and backplane interface logic. The A54SX08-2FG144's 0.4 ns FastConnect paths and segmented/high-drive routing support the tight skew and setup budgets of backplane interfaces, while the 3.3V/5V dual supply bridges mixed-voltage backplanes. Its instant-on behavior means links retrain as soon as power is applied, without a configuration download window that could trigger watchdog faults in central-office equipment. The 111 user I/Os accommodate T1/E1 framers, SerDes glue, and LED/relay drive logic on one die. For designs needing more capacity in the same footprint strategy, the A54SX16 series offers a path within the same architecture and toolchain.
Recommended
Aerospace and Defense Legacy Subsystems
Antifuse FPGAs hold a privileged position in defense electronics because their configuration is physically blown, immune to single-event configuration upsets and impossible to dump or corrupt in the field. The A54SX08-2FG144 has served in radar interface boards, avionics glue logic, and secure controller paths where predictable, immutable behavior is mandated. Its 320 MHz -2 speed grade covers counter, encoder, and interface timing needs, and the absence of a configuration PROM removes an entire failure class and supply-chain dependency. Note that this commercial part is not radiation-characterized; new rad-tolerant designs should use the Microchip RTAX family (e.g., RTAX2000S), while this device suits ground, sheltered, and legacy-refresh programs.
Recommended
Test and Measurement Instrumentation
Bench instruments and ATE fixtures use the A54SX08-2FG144 for timing generators, counter chains, and trigger logic. The deterministic pin-to-pin delays of the SX architecture (0.4 ns FastConnect, well-characterized -2 speed-grade timing models) let instrument designers close picosecond-class skew budgets that software-configured SRAM fabrics with variable routing delay complicate. Because antifuse parts are programmed once and never reloaded, measurement repeatability is identical across every unit shipped - an auditable advantage for calibration procedures. The 3.3V/5V I/O flexibility interfaces directly with legacy TTL-level instrumentation buses, and the 144-FBGA footprint keeps signal escape simple on 4-layer test boards.
Recommended
Medical Device Interface Electronics
Diagnostic and monitoring equipment benefits from the A54SX08-2FG144's fixed, verified logic: once the design is signed off and programmed, its behavior is locked for the device's service life, simplifying regulatory validation of digital interface blocks for sensors, front-end ADCs, and user-interface buttons. Instant-on antifuse configuration ensures the instrument is operational the moment power is applied - relevant for patient-connected equipment with strict power-up behavior requirements. The 111 user I/Os in a compact 12 x 12 mm FBGA support dense multi-channel front ends, and low configuration-related failure modes support long service intervals. Designers should select the industrial-temperature A54SX08-2FG144I variant for equipment requiring wider environmental qualification.
Recommended
Recommended Products Summary
Engineering reference data for A54SX08-2FG144 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX08-2FG144I | A54SX08-2FGG144 | A54SX08-FG144 | A54SX08-PFGG144 |
|---|---|---|---|---|---|
| Package | 144-FBGA (12 x 12 mm) | 144-FBGA - same | 144-FBGA - same | 144-FBGA - same | 144-PBGA - same terminal count |
| Brand | Microchip Technology (Actel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Equivalent Gates | 8000 | 8000 | 8000 | 8000 | 8000 |
| CLBs / Cells | 768 / 512 | 768 / 512 | 768 / 512 | 768 / 512 | 768 / 512 |
| Max Frequency | 320 MHz | 320 MHz | 320 MHz | [DATA_NEEDED] | 240 MHz |
| User I/O | 111 | 111 | 111 | 111 | 113 in / 113 out (per Microchip USA) |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| Temperature Grade | Commercial | Industrial | Commercial | Commercial | Commercial |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
Key Differentiators
- Fastest speed grade in the 8K-gate SX-A line (vs A54SX08-PFGG144)
- Industrial-temperature drop-in available (vs A54SX08-2FG144I)
- Antifuse immutability and instant-on (vs SRAM FPGAs of similar capacity)
- Dual 3.3V/5V I/O operation (vs A54SX08-FG144 (-1 grade))
Design Notes
The A54SX08-2FG144 is one-time programmable. Unlike SRAM FPGAs, there is no rework after programming: a design change means scrapping the device. Complete timing closure, functional simulation, and boundary-scan verification in Libero before releasing devices to the programming house. Keep at least one spare programmed device per board revision, and lock the RTL/design archive since recompilation for a new build must reproduce identical timing at the -2 speed grade.
The 144-ball FBGA uses a 1.00 mm pitch on a 12 x 12 mm body. Fan out with via-in-pad or dog-bone escape on 0.8 mm BGA rules; a 4-layer stack with dedicated ground plane is recommended for the 3.3V/5V dual-supply design. Verify the footprint against the FG144 ballout column of the 54SX family datasheet - pin assignments differ across the family's QFP and BGA options, and a footprint copied from a TQ144 QFP layout will not fit.
Decouple both VCC rails (3.3V core/I-O and 5V I-O where used) with at least 0.1 uF ceramic per supply pin pair plus 10 uF bulk near the device. Because FastConnect paths switch with 0.4 ns edges, simultaneous switching noise on 111 I/Os can be significant; assign ground balls generously in the I/O planner and avoid returning high-drive outputs through a shared narrow ground path.
When migrating between same-family 144-FBGA variants (-2 vs -1 speed grades, commercial vs industrial suffixes), the ballout is unchanged, so layout reuse is straightforward - but re-run timing at the substituted speed grade. The -1 speed grade parts are roughly 25% slower (240 MHz class vs 320 MHz), which can break paths that closed with margin only at -2.
Compliance Information
Compliance status not stated in the retrieved distributor data for this legacy Actel/Microchip SX-A part. Verify RoHS/REACH status on the official Microchip product page before procurement.
