Microchip Technology

A54SX16P-TQG144 - 16K-Gate SX FPGA, 240MHz, TQFP-144 | Microsemi

MPN: A54SX16P-TQG144 ✓ Active
In Stock Ships in 1-3 business days
3 V to 3.6 V Vdss 144-TQFP (20x20 mm) Package
From $31 USD / Unit
MOQ: 1 |
Price updated: 2026-09-03
Volume Pricing
Qty Unit Price Extended
1 $48.5 $48.50
10 $43.65 $436.50
100 $38.8 $3,880.00
500 $34.9 $17,450.00
1,000 $31 $31,000.00
ℹ️ All prices are in USD

Drop-in alternatives for A54SX16P-TQG144 — 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:

A54SX16P-TQG144I

✅ Drop-In
Microsemi
📦 144-TQFP (20x20)
Microsemi Corporation (Microchip Technology) · SX (SX FPGA Family) · 16000 gates · 924 cells · 113 · 240 MHz · 0.35 um CMOS · 3 V to 3.6 V

✓ In Stock

$24.64 / Unit

View Datasheet →

A54SX16P-1TQG144

✅ Drop-In
Microsemi
📦 144-TQFP (20x20)
SX (Antifuse FPGA) · 16,000 (typical) · 924 · 1452 · 113 · 280 MHz · 0.35 um · 3 V to 3.6 V (3.3 V nominal)

✓ In Stock

Contact for price

View Datasheet →

A54SX16P-1TQG144I

✅ Drop-In
Microsemi
📦 144-TQFP (20x20)
Actel SX · 16000 gates · 924 cells · 113 · 280 MHz · 0.35 um · 3 V to 3.6 V · 4.75 V to 5.25 V

✓ In Stock

$47.9 / Unit

View Datasheet →

A54SX16P-2TQG144

✅ Drop-In ⚠️ 参数待验证
Microsemi
📦 144-TQFP (20x20)
SX (Actel/Microsemi SX Series) · 24000 · 16000 · 924 · 113 · -2 · 320 MHz · 3 V to 3.6 V

✓ In Stock

$48.9 / Unit

View Datasheet →

A54SX16P-2TQG144I

✅ Drop-In ⚠️ 参数待验证
Microsemi
📦 144-TQFP (20x20)
SX (Actel/Microsemi 54SX Family) · 24,000 gates (16K gates / 924 cells per FPGAkey listing) · 113 · 320 MHz · 0.35 um · 3 V to 3.6 V · 4.75 V to 5.25 V · Antifuse (one-time programmable)

✓ In Stock

$26.1 / Unit

View Datasheet →

A54SX16P-TQG144 Maximum Ratings & Electrical Characteristics

Family SX (Actel antifuse FPGA)
System Gates 16000 gates
Logic Modules (Cells) 924 cells
User I/O 113 I/O
Maximum System Performance 240 MHz
Process Technology 0.35 um
Supply Voltage - Core/IO 3 V to 3.6 V
Supply Voltage - Secondary Rail 4.75 V to 5.25 V
Programming Technology Antifuse (one-time programmable)
Architecture Sea-of-modules
Package 144-TQFP (20x20 mm)
Pin Pitch 0.5 mm
Mounting Type Surface Mount

A54SX16P-TQG144 144-tqfp (20x20 mm) Pin Configuration Guide

Complete pinout information for A54SX16P-TQG144 (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.

144-tqfp (20x20 mm) package pinout diagram for A54SX16P-TQG144

No detailed pinout data available for A54SX16P-TQG144.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for A54SX16P-TQG144 Drain-to-Source Voltage (Vds) Drain Current (Id)

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

A54SX16P-TQG144 is suitable for 6 applications: Industrial Control and Automation, 5V Legacy System Integration and Glue Logic, Telecom and Networking Interface Logic, Aerospace and Defense Control Electronics, Medical Instrumentation, Test and Measurement Equipment.

🏭

Industrial Control and Automation

The A54SX16P-TQG144 fits industrial control systems that need deterministic, instant-on logic with 5V tolerance for legacy sensors and actuators. Its 240 MHz performance class handles high-speed state machines and sequencing, while 113 user I/O in the 144-TQFP consolidates PLC I/O interfaces, encoder counters, and interlock logic into one device. Because the antifuse configuration is non-volatile, the FPGA is functional immediately at power-up with no boot delay or configuration memory failure mode, improving machine availability. Designers should allocate margin on the 3.3V and 5V rails and use the industrial -I grade (A54SX16P-TQG144I) for factory-floor ambient temperatures.

🔧

5V Legacy System Integration and Glue Logic

Many telecom, instrumentation, and military-heritage boards still run 5V TTL buses. The A54SX16P-TQG144's dual supply (3.0V-3.6V core rail plus 4.75V-5.25V I/O rail) allows direct connection to 5V signals without level translators, cutting BOM cost and board space versus a modern FPGA plus shift-register solution. Its 16K gates replace dozens of 74-series devices for bus bridging, address decoding, and wait-state generation, and the antifuse fabric adds no configuration-download risk during brownouts. Verify each I/O standard's drive and tolerance in the SX family datasheet before connecting 5V rails to all banks.

🌐

Telecom and Networking Interface Logic

Line cards and backplane controllers in telecom equipment benefit from the A54SX16P-TQG144's combination of 240 MHz-class routing, low interconnect capacitance inherent to antifuse technology, and secure one-time programming that resists bitstream extraction. The 924 logic modules implement framing, elapse counters, and protocol handshaking, while 113 I/O map cleanly to TDM buses and PHY control interfaces in the compact 20x20 mm TQFP. Because there is no external configuration flash to read at startup, hot-swappable cards regain function immediately on insertion. Design teams should simulate worst-case timing in Libero/Designer before committing antifuse programming.

✈️

Aerospace and Defense Control Electronics

Defense subsystems value the A54SX16P-TQG144's one-time-programmable antifuse fabric, which is immune to configuration upsets that affect SRAM FPGAs and carries no external boot memory to corrupt in high-vibration environments. The 16K-gate capacity implements sensor Interfaces, safety interlocks, and watchdog logic; the instant-on behavior matters in systems with strict power-on-to-ready timing budgets. Microchip's continued support of the Actel/Microsemi antifuse line (including RTAX radiation-tolerant derivatives for space) provides a growth path. Select the industrial -I suffix for extended temperature and follow datasheet power-sequencing guidance on the dual 3.3V/5V rails.

💊

Medical Instrumentation

Benchtop medical analyzers and imaging peripherals use the A54SX16P-TQG144 for deterministic control-plane logic, front-end timing generation, and interface consolidation. The 113 user I/O in a 20x20 mm TQFP connects ADCs, motor drivers, and panel interfaces without an external configuration device, simplifying regulatory documentation of the boot path, and the 240 MHz performance class covers high-rate acquisition sequencing. One-time programming also protects proprietary algorithms embedded in the logic from casual readback. Use the industrial-grade A54SX16P-TQG144I where the instrument must meet broader environmental qualification, and budget rail decoupling per the family datasheet.

🔬

Test and Measurement Equipment

The A54SX16P-TQG144 serves as timing-controller and glue-logic fabric in oscilloscope front ends, signal generators, and automated test fixtures where deterministic, instant-on behavior shortens instrument startup. Its sea-of-modules architecture delivers the 240 MHz-class internal routing needed for trigger state machines and counter/timer blocks, and 113 I/O accommodate measurement muxes, relay drivers, and backplane handshaking. The antifuse one-time-programmable fabric eliminates bitstream-loading jitter between power cycles, improving measurement repeatability. For designs outgrowing 16K gates, pin-similar density upgrades within the SX family and the TQFP-176 variants provide a migration route without board redesign of the control section.

What is the A54SX16P-TQG144 and what are its key specifications?
The A54SX16P-TQG144 is a Microsemi (Microchip) SX-family antifuse FPGA with 16,000 system gates, 924 logic modules, 113 user I/O, and 240 MHz system performance, housed in a 144-pin TQFP (20x20 mm, 0.5 mm pitch). It runs on dual supply rails of 3.0V to 3.6V and 4.75V to 5.25V on a 0.35 um process. According to the Microchip product page, the SX family uses a sea-of-modules architecture optimized for performance-intensive applications.
Where can I buy A54SX16P-TQG144 online?
The A54SX16P-TQG144 can be purchased from authorized distributors including DigiKey (listed as 'ships today'), Mouser, and through XAIPART. DigiKey lists it under Microchip Technology FPGAs with stock availability, and Octopart reports pricing comparison from 5 distributors. Independent stocking distributors such as ic-stocks.com also supply it on request-quote terms. For production volumes, request quotes from XAIPART for quantity pricing as of 2026-09-03.
What is the price of A54SX16P-TQG144?
Pricing for the A54SX16P-TQG144 varies by distributor and quantity; as of 2026-09-03, XAIPART lists tiered pricing starting at $48.50 at quantity 1, decreasing to approximately $31.00 at 1,000 pieces. Octopart aggregates offers from 5 distributors, so comparing those sources is recommended for the best current price. Legacy antifuse FPGAs like this typically carry higher unit prices than modern SRAM FPGAs due to limited production volumes.
Is A54SX16P-TQG144 in stock and what is the lead time?
Yes, DigiKey's listing for the A54SX16P-TQG144 states 'Buy now, ships today,' indicating stock availability at that distributor as of the data retrieval date. Make-tronics also lists the part as 'In Stock.' Lead times at independent distributors are typically quoted on request; XAIPART provides current stock and lead-time confirmation with every quote as of 2026-09-03. Always verify stock at order time, as legacy FPGA inventory fluctuates.
What is the difference between A54SX16P-TQG144 and A54SX16P-1TQG144?
The suffix digit indicates speed grade: the A54SX16P-TQG144 is the standard speed grade rated at 240 MHz, while the A54SX16P-1TQG144 is the faster -1 speed grade, with references citing up to 280 MHz for -1 variants. Both use the identical 144-pin TQFP package, same 16K-gate die, and same supply requirements, so they are pin-compatible and generally interchangeable when timing margins permit the standard speed grade.
A54SX16P-TQG144 vs A54SX16P-TQG144I - which should I choose?
Choose based on operating environment: the A54SX16P-TQG144 (no I suffix) is the commercial temperature grade, while the A54SX16P-TQG144I carries the industrial temperature suffix for extended-temperature environments such as factory floor equipment and outdoor enclosures. Electrically they share the same 16K-gate die, 113 I/O, 240 MHz performance, and 144-TQFP footprint, so the decision is purely thermal-environmental, not architectural. Industrial-grade parts typically cost slightly more.
Can A54SX16P-TQG144I replace A54SX16P-TQG144 in my design?
Yes, the A54SX16P-TQG144I is a pin-to-pin drop-in replacement for the A54SX16P-TQG144 in the same 144-TQFP package. The industrial 'I' grade is qualified over a wider temperature range and can be used anywhere the commercial grade is specified, at marginally higher cost. The reverse substitution is not recommended if your system operates outside commercial temperature limits. Both share identical electrical specifications including the 3.3V/5V dual supply.
What is the best drop-in replacement for A54SX16P-TQG144?
The best drop-in replacements are same-family Microsemi SX parts in the identical 144-TQFP footprint: A54SX16P-TQG144I (industrial grade), A54SX16P-1TQG144 and A54SX16P-1TQG144I (faster -1 speed grade), and A54SX16P-2TQG144 and A54SX16P-2TQG144I (-2 speed grade variants). All are pin-compatible, one-time-programmable, and accept the same bitstream generation flow. Because these are antifuse parts, each unit is programmed individually regardless of variant.
Where can I download the A54SX16P-TQG144 datasheet PDF?
The A54SX16P-TQG144 datasheet and family documentation are available on the official Microchip product page at microchip.com/en-us/product/A54SX16P, which hosts the SX family datasheets. Datasheets.com and AiPCBA also mirror the PDF for the closely related A54SX16P-1TQG144I variant. Avoid non-authorized mirrors when possible; the Microchip page guarantees the latest revision covering the full SX-A and SX-P family electrical specifications.
Where can I find the A54SX16P-TQG144 pinout?
The complete 144-pin TQFP pinout for the A54SX16P-TQG144 is provided in the SX family datasheet's package pinout tables on the Microchip product page. Because FPGA pin functions are user-defined (113 of the 144 pins are user I/O), the datasheet lists power, ground, and dedicated pins while user I/O assignments are set in your design and pin report from Libero/Designer software. Always generate the final pin report from your completed design before PCB layout sign-off.
What are the power supply requirements of the A54SX16P-TQG144?
The A54SX16P-TQG144 requires two supply rails per the distributor specification data: a primary rail of 3V to 3.6V (nominal 3.3V) and a secondary rail of 4.75V to 5.25V (nominal 5V). This dual-rail scheme on the 0.35 um process enables direct 5V TTL compatibility on I/O while keeping internal power low. Decouple both rails with ceramic capacitors placed close to the package, and sequence supplies per the family datasheet guidance.
Is the A54SX16P-TQG144 suitable for 5V legacy system integration?
Yes, the A54SX16P-TQG144 is well suited to 5V legacy integration because the SX-P family supports a 5V supply rail (4.75V to 5.25V) alongside a 3.3V rail, per distributor specifications. This lets the FPGA interface directly with 5V TTL logic common in older industrial and telecom equipment without level shifters, reducing board area and component count. Confirm I/O drive and tolerance details in the family datasheet for your specific I/O standard.
Hey Google, what can replace the A54SX16P-TQG144?
Pin-compatible replacements for the A54SX16P-TQG144 are its same-package family variants: A54SX16P-TQG144I, A54SX16P-1TQG144, A54SX16P-1TQG144I, A54SX16P-2TQG144, and A54SX16P-2TQG144I, all in 144-TQFP. There is no cross-brand drop-in equivalent because Microsemi's antifuse architecture is proprietary; SRAM FPGAs from Xilinx or Altera in similar packages require different toolchains and boot memory, so they are not drop-in substitutes. Restrict substitutions to same-family speed/temperature variants.
What is the best Microsemi equivalent for A54SX16P-TQG144 if I need higher gate count?
Within the SX family, the A54SX32 provides roughly double the capacity (32K-class gates) and is available in 144-TQFP-compatible footprints such as the A54SX32-TQG144 listed on XAIPART. Note that moving from A54SX16P to A54SX32 changes the die and may alter pin assignments, so it is a footprint-similar upgrade, not a guaranteed pin-to-pin swap; regenerate your pin assignments and re-verify PCB connectivity. For radiation-tolerant needs, Microchip offers RTAX-series parts instead.
Is the A54SX16P-TQG144 still active and supported by design tools?
Yes, the A54SX16P-TQG144 remains listed as an active product on the Microchip product page, and the SX/SX-A families continue to be supported for existing designs. Microchip maintains the antifuse FPGA portfolio after acquiring Microsemi/Actel. However, because this is a legacy 0.35 um architecture, new designs should verify current software support in Microchip Libero SoC and consider volume-commitment implications. For new designs, modern Microchip PolarFire or RTG4 families may be more future-proof.

Engineering reference data for A54SX16P-TQG144 — comparison, design guidance, and compliance information.

Selection Guide

Choose the A54SX16P-TQG144 when you need a 16K-gate, one-time-programmable FPGA with 113 I/O and 5V-tolerant dual-supply interfacing in a 20x20 mm TQFP, and your design closes timing at the 240 MHz-class standard speed grade. Select the A54SX16P-1TQG144 or -2 variants when your timing report has insufficient margin at standard grade; they are pin-identical upgrades. Select the -I industrial suffix (A54SX16P-TQG144I and equivalents) for factory-floor, outdoor, or extended-temperature enclosures, accepting a modest price premium. Choose A54SX32 devices in TQFP-144 or larger packages when 16K gates prove too small, but re-verify pin assignments since the die differs. Do not attempt cross-brand substitution with SRAM FPGAs: the antifuse architecture, toolchain, and boot behavior are not drop-in compatible. For new designs, evaluate Microchip PolarFire or RTAX families, since this 0.35 um platform is legacy-oriented despite remaining active.

Comparison with Alternatives

Parameter This Product A54SX16P-TQG144I A54SX16P-1TQG144 A54SX16P-1TQG144I A54SX16P-2TQG144 A54SX16P-2TQG144I
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 144-TQFP (20x20 mm) - same
Brand Microchip Technology (Microsemi) Microchip Technology (Microsemi) Microchip Technology (Microsemi) Microchip Technology (Microsemi) Microchip Technology (Microsemi) Microchip Technology (Microsemi)
System Gates 16000 gates 16000 gates 16000 gates 16000 gates 16000 gates 16000 gates
Logic Modules 924 cells 924 cells 924 cells 924 cells 924 cells 924 cells
User I/O 113 I/O 113 I/O 113 I/O 113 I/O 113 I/O 113 I/O
Speed Grade / Performance Standard (240 MHz class) Standard (240 MHz class) -1 (up to 280 MHz class) -1 (up to 280 MHz class) -2 speed grade -2 speed grade
Temperature Grade Commercial Industrial (-I suffix) Commercial Industrial (-I suffix) Commercial Industrial (-I suffix)
Supply Voltage 3V~3.6V and 4.75V~5.25V 3V~3.6V and 4.75V~5.25V 3V~3.6V and 4.75V~5.25V 3V~3.6V and 4.75V~5.25V 3V~3.6V and 4.75V~5.25V 3V~3.6V and 4.75V~5.25V
Programming Technology Antifuse (one-time programmable) Antifuse (one-time programmable) Antifuse (one-time programmable) Antifuse (one-time programmable) Antifuse (one-time programmable) Antifuse (one-time programmable)

Key Differentiators

  • Non-volatile antifuse configuration with instant-on startup (vs A54SX32-TQG144)
  • Dual 3.3V/5V supply for direct 5V TTL interfacing (vs A54SX16P-TQG144I)
  • Compact 20x20 mm TQFP with 113 user I/O (vs A54SX16P-1TQG144)

Design Notes

The A54SX16P-TQG144 requires two independent supply rails: 3.0V-3.6V and 4.75V-5.25V. Decouple each rail with bulk capacitance (10 uF-22 uF) plus local 0.1 uF ceramics at the package corners, placed within a few millimeters of the VDD/VSS pin pairs. Check the SX family datasheet for mandatory power-up sequencing between rails; violating sequencing can stress the 0.35 um I/O structures. Verify total current against your design's switching activity using the Microchip power estimation tools before finalizing the regulator selection.

This is an antifuse, one-time-programmable device: a design error cannot be re-flashed like an SRAM FPGA. Complete full functional and worst-case timing simulation in Microchip Libero/Designer software, and review the post-layout timing report, before committing any units to programming. Budget spare programmed units for engineering changes, since each replacement die must be reprogrammed. Also confirm the speed-grade suffix purchased (-1, standard) matches the timing model used in your design sign-off.

The 144-TQFP (20x20 mm, 0.5 mm pitch) requires fine-pitch layout practice: use 0.2 mm-0.25 mm wide traces with solder-mask-defined pads per IPC-recommended TQFP land patterns, and keep fan-out stubs short to preserve signal integrity on 240 MHz-class nets. Provide a solid ground plane under the device. Select the temperature grade deliberately: use the A54SX16P-TQG144I (-I) for environments beyond commercial range, as the commercial-grade TQG144 is not rated for extended-temperature enclosures.

Compliance Information

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
Unknown
Halogen Free
Unknown
Conflict Minerals
Unknown

Compliance data was not present in the provided web data. Verify RoHS/REACH status on the Microchip product page compliance documentation before procurement.

Data verified on: 2026-09-03 — data verified and curated by XAIPART's component engineering team

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Related Components & Terms

Microsemi Corporation Microchip Technology Actel A54SX16P-TQG144 A54SX16P-TQG144I A54SX16P-1TQG144 A54SX32-TQG144 SX family FPGA antifuse FPGA field-programmable gate array sea-of-modules architecture 144-TQFP LQFP package family surface mount 0.35 um process 5V TTL interface industrial control telecom interface logic aerospace and defense Libero SoC design software
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