A54SX32-2TQG144 - 32K Gate FPGA, 113 I/O, TQFP-144 | Microchip
MPN: A54SX32-2TQG144 ✗ End of Life| 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 A54SX32-2TQG144 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX32-2TQG144I
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$45.6 / Unit
View Datasheet →A54SX32-TQG144
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$1387.71 / Unit
View Datasheet →A54SX32-TQG144I
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$32.3 / Unit
View Datasheet →A54SX32-1TQG144
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View Datasheet →A54SX32-1TQG144I
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View Datasheet →A54SX32-TQG144M
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View Datasheet →A54SX32-2TQG144 Maximum Ratings & Electrical Characteristics
| Family | SX (Actel SX-A/SX antifuse FPGA) |
| System Gates | 32000 gates |
| Logic Cells (Modules) | 2880 |
| Speed Grade | -2 |
| Number of I/O | 113 |
| Operating Supply Voltage | 3.3 V, 5 V |
| Technology | 0.35 um CMOS, antifuse OTP |
| Package / Case | TQFP-144 |
| Mounting Style | SMD/SMT |
| Minimum Operating Temperature | 0 C |
| Maximum Operating Temperature | +70 C |
| Packaging | Tray |
| Product Series | SX |
| Programmability | One-Time Programmable (antifuse) |
| Configuration Storage | Non-volatile (no external configuration ROM required) |
A54SX32-2TQG144 tqfp-144 Pin Configuration Guide
Complete pinout information for A54SX32-2TQG144 (tqfp-144 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 A54SX32-2TQG144.
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
A54SX32-2TQG144 is suitable for 6 applications: Legacy Industrial Control and Automation, 5V to 3.3V Bridge and Glue Logic, Communications and Networking Legacy Equipment, Test and Measurement Instrumentation, Medical Device Sustaining Engineering, Aerospace-Adjacent and High-Reliability Ground Systems.
Legacy Industrial Control and Automation
The A54SX32-2TQG144 fits industrial control and factory automation equipment that was designed around the Actel SX family and remains in production. Its 32,000 gates and 2,880 logic modules integrate PLC glue logic, encoder interfaces, state machines, and fieldbus control functions in one device, while 113 user I/O at 5V-tolerant, 3.3V/5V levels connects directly to legacy 5V TTL sensors and actuators without level-shifting. Because the antifuse fabric is non-volatile, machinery powers up into a known-good configuration instantly, with no configuration PROM to fail and no boot latency. For sustaining these installed-base systems, the TQFP-144 industrial variants (A54SX32-2TQG144I) extend operation beyond the commercial 0C to +70C window, and the deterministic antifuse routing keeps timing closure simple when re-qualifying an existing design.
Recommended
5V to 3.3V Bridge and Glue Logic
The A54SX32-2TQG144 is well suited to bridging legacy 5V buses with 3.3V subsystems because the 0.35 um SX family supports both 3.3V and 5V supplies, with 113 I/O buffers compatible with both voltage domains. Typical roles include bus width conversion, address decoding, wait-state generation, and protocol translation between microprocessors, memories, and peripherals. With 32,000 system gates, the device absorbs dozens of 74xx-class discrete glue chips, cutting board area, assembly cost, and standby power. The antifuse OTP nature means the bridge configuration is fixed and tamper-resistant at power-up, an advantage in equipment where a misconfigured SRAM FPGA could disrupt boot. Where PCB real estate is unchanged but a faster fabric is desired for the same footprint, the SX-A generation A54SX32A-2TQG144 offers a 0.25 um, higher-speed migration path.
Recommended
Communications and Networking Legacy Equipment
Telecom, datacom, and networking platforms designed in the late 1990s and 2000s frequently used Actel SX FPGAs for line-card control, backplane arbitration, and framing logic. The A54SX32-2TQG144 serves these roles with 2880 configurable modules and the -2 speed grade supporting demanding synchronous designs, while the sea-of-modules architecture delivers predictable interconnect delays that ease static timing sign-off on long backplane interfaces. Non-volatile antifuse configuration is valuable in carrier equipment that must be operational within milliseconds of power application and must present no configuration-readback surface. For sustaining these platforms, drop-in TQFP-144 siblings such as A54SX32-2TQG144I and A54SX32-TQG144 preserve the PCB footprint, and sourcing through excess-inventory channels (Microchip USA, Octopart-listed brokers) keeps legacy line cards repairable.
Recommended
Test and Measurement Instrumentation
Bench instruments, data acquisition systems, and automated test equipment benefit from the A54SX32-2TQG144's combination of 32K gates, 113 flexible I/O, and instant-on non-volatile configuration. The device implements trigger logic, timing controllers, counter/timer blocks, and bus interfaces (GPIB-class parallel buses, serial framing) with deterministic timing, since antifuse routing is fixed after place-and-route. Dual 3.3V/5V supply support lets the FPGA sit between legacy analog front-end circuitry running at 5V and modern 3.3V digital processors without external translators. Because instrumentation designs are typically frozen after release, one-time programmability is an acceptable trade-off for the security and simplicity benefits. Commercial 0C to +70C operation covers bench and lab environments, with tray packaging suited to low-volume service and repair builds.
Recommended
Medical Device Sustaining Engineering
Diagnostic, laboratory, and monitoring equipment designed with Actel SX FPGAs can be sustained with the A54SX32-2TQG144. Its 2,880 logic cells handle sensor front-end control, acquisition sequencing, and interface glue to processors, while 5V-tolerant I/O eases integration with older analog boards. The antifuse architecture contributes to design longevity: the configuration is permanent, cannot be corrupted by single-event configuration upsets common to SRAM fabrics, and requires no configuration memory that could age out of production. For regulatory re-qualification, staying with the identical die and TQFP-144 footprint minimizes re-validation scope; where wider temperature margins are needed, the A54SX32-2TQG144I industrial variant is pin-to-pin compatible. Design teams should verify continued availability through quote-based excess-inventory channels and hold safety stock given the part's end-of-life status.
Recommended
Aerospace-Adjacent and High-Reliability Ground Systems
While flight programs migrated to Microchip's RTAX radiation-tolerant families, ground support equipment, test sets, and high-reliability industrial systems derived from aerospace designs continue to use Actel SX antifuse FPGAs such as the A54SX32-2TQG144. The antifuse fabric is inherently immune to configuration readback and configuration-memory upset, and it powers up instantly with no configuration controller, simplifying reliability analysis versus SRAM FPGAs. The 32K-gate capacity accommodates interface, telemetry, and control functions, and dual 3.3V/5V operation supports heritage backplane signaling. Designers migrating toward rad-tolerant parts can treat the RTAX family (for example RTAX1000SL devices) as functional successors, though these require PCB redesign rather than drop-in substitution. For pure sustaining use, TQFP-144 same-footprint variants preserve existing layouts and qualification evidence.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-2TQG144 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-2TQG144I | A54SX32-TQG144 | A54SX32-TQG144I | A54SX32A-2TQG144 |
|---|---|---|---|---|---|
| Package | TQFP-144 | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 32000 | 32000 | 32000 | 32000 | 32000 (48000 gates reported by FindIC) |
| Logic Cells | 2880 | 2880 | 2880 (1800 cells per FindIC) | 2880 | 2880 |
| Speed Grade | -2 | -2 | standard | standard | -2 (0.25 um SX-A, ~313 MHz class) |
| User I/O | 113 | 113 | 113 | 113 | 113 |
| Operating Temperature | 0 C to +70 C | Industrial (wider than commercial) | 0 C to +70 C | Industrial (wider than commercial) | [DATA_NEEDED] |
| Supply Voltage | 3.3 V, 5 V | 3.3 V, 5 V | 3.3 V, 5 V | 3.3 V, 5 V | 2.5 V core (SX-A generation) |
| Technology / Programmability | 0.35 um CMOS antifuse OTP | 0.35 um CMOS antifuse OTP | 0.35 um CMOS antifuse OTP | 0.35 um CMOS antifuse OTP | 0.25 um CMOS antifuse OTP, RoHS compliant |
Key Differentiators
- Fastest commercial-temperature TQFP-144 variant in the SX32 family (vs A54SX32-TQG144)
- Same-footprint upgrade path to the SX-A generation (vs A54SX32A-2TQG144)
- Industrial temperature option without PCB change (vs A54SX32-2TQG144I)
- Instant-on, configuration-free operation (vs SRAM FPGAs (functional class))
Design Notes
The A54SX32-2TQG144 supports both 3.3V and 5V operation per the distributor specification tables. When using the dual-supply capability, follow the 54SX family datasheet power-up recommendations: ensure VCC and VCCI pins are properly decoupled with local 0.1 uF ceramics per supply pin group and bulk capacitance per board. Because the antifuse fabric is static, current consumption is dominated by I/O switching rather than configuration; size the supply for worst-case simultaneous switching output (SSO) current across the 113 user I/O. Verify per-pin supply assignments against the manufacturer datasheet before layout.
This is a one-time-programmable antifuse FPGA: the design must pass timing simulation and functional verification BEFORE programming, since a programmed device cannot be erased or reworked. Budget for programming yield in production quantities and maintain archived programming files and the Actel/Microchip Designer project for every released firmware revision. Also note the part is end-of-life; confirm date codes, handling (MSL), and test requirements with your broker (e.g., Microchip USA) before ordering, and consider a last-time-buy of the industrial variant A54SX32-2TQG144I for extended-temperature builds.
The 144-pin TQFP (0.5 mm lead pitch class) requires careful SMT process control: use a standard TQFP-144 footprint per IPC-compatible land patterns, and verify paste stencil aperture design to avoid bridging on fine-pitch leads. The TQFP lead frame is body-conductive to the die; observe ESD handling per manufacturer guidance during programming and assembly. Signal integrity on the 113 I/O is manageable at SX-class speeds, but maintain short, direct routing for global clock inputs and use series termination on high-fanout outputs to limit ringing with 5V swing buffers.
With 3.3V/5V output buffers driving up to 113 loads, plan ground return paths carefully: allocate adequate VSS/GND pins per I/O bank as defined in the datasheet pin tables, and avoid switching more outputs on one bank simultaneously than the board's power distribution supports. For long backplane or cable runs, add series resistors (typically estimated 22-33 ohm as a starting value; simulate for your topology) on outputs to control overshoot. Deterministic antifuse routing means internal timing will not drift between builds once the design is frozen, simplifying long-term signal-integrity and timing re-qualification.
Compliance Information
The original SX A54SX32 is a legacy Actel part; RoHS/lead-free status varies by suffix (the SX-A A54SX32A-2TQG144 is described as RoHS compliant by FindIC, but no RoHS statement was found in the provided data for this exact MPN). Verify compliance certificates with the distributor.
