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A54SX16-VQ100 - SX FPGA 16K Gates 100-TQFP | Microsemi

MPN: A54SX16-VQ100 ✓ Active
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3 V to 3.6 V and 4.75 V to 5.25 V Vdss 100-TQFP (VQFP, 14x14 mm) Package 240 MHz Speed
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Price updated: 2026-09-02
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Drop-in alternatives for A54SX16-VQ100 — 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-VQG100

✅ Drop-In
Microchip Technology
📦 100-TQFP (VQFP, 14x14 mm)
Actel SX (54SX) · 16000 · 924 · 1452 · 240 MHz · 0.35 um CMOS · 3.3 V / 5 V · 81

✓ In Stock

$47.6 / Unit

View Datasheet →

A54SX16P-1VQG100

✅ Drop-In
Microchip Technology
📦 100-TQFP (VQFP, 14x14 mm)
Antifuse (one-time programmable) CMOS FPGA · SX / SX-A · 16000 · 1452 · 924 · 280 MHz · 0.35 um · 3.3 V / 5 V

✓ In Stock

$25.1 / Unit

View Datasheet →

A54SX16P-2VQG100

✅ Drop-In
Microsemi
📦 100-TQFP (VQFP, 14x14 mm)
SX (Actel/Microsemi SX-A) · 16000 gates · 924 cells · 1452 CLBs · 320 MHz · 0.7 ns · 0.35 um CMOS · 3.3 V / 5 V

✓ In Stock

$30.1 / Unit

View Datasheet →

A54SX16P-VQG100I

✅ Drop-In
Microchip Technology
📦 100-TQFP (VQFP, 14x14 mm)
SX (Actel/Microsemi) · 16000 gates · 924 cells · 1452 · 240 MHz · 0.35 um CMOS · 81 · 3.3 V / 5 V

✓ In Stock

Contact for price

View Datasheet →

A54SX08-VQG100

✅ Drop-In
Microsemi
📦 100-TQFP (VQFP, 14x14 mm)
Actel SX (54SX) · 8,000 gates · 512 · 81 · 240 MHz · 0.35 um · 3 V to 3.6 V · 4.75 V to 5.25 V

✓ In Stock

$32.1 / Unit

View Datasheet →

A54SX16-VQ100 Maximum Ratings & Electrical Characteristics

Family SX (Actel antifuse FPGA)
System Gates 16000 gates
Logic Cells 924 cells
Maximum System Frequency 240 MHz
Process Technology 0.35 um CMOS
Supply Voltage (Core/IO) 3 V to 3.6 V and 4.75 V to 5.25 V
Number of I/O 81
Package 100-TQFP (VQFP, 14x14 mm)
Programming Technology Antifuse (one-time programmable)
Mounting Type Surface Mount
Configuration Type Non-volatile, instant-on

A54SX16-VQ100 100-tqfp (vqfp, 14x14 mm) Pin Configuration Guide

Complete pinout information for A54SX16-VQ100 (100-tqfp (vqfp, 14x14 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.

100-tqfp (vqfp, 14x14 mm) package pinout diagram for A54SX16-VQ100

No detailed pinout data available for A54SX16-VQ100.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for A54SX16-VQ100 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

A54SX16-VQ100 is suitable for 6 applications: Industrial Control and Automation, Communications and Networking Interface Logic, Avionics and Defense Subsystems, ASIC Prototyping and Emulation, Bridge and Bus Interface Logic, Test and Measurement Equipment.

🏭

Industrial Control and Automation

The A54SX16-VQ100's 5V-tolerant I/O and instant-on antifuse configuration make it well suited to industrial control boards that must be functional the moment power is applied. With 81 user I/O it can integrate PLC glue logic, motor-drive interface sequencing, and sensor aggregation in one 16K-gate device running at up to 240 MHz. Because the configuration is hard-wired in silicon, there is no risk of a corrupted bitstream leaving machinery in an undefined state after a brownout, a common failure mode of SRAM FPGAs. The dual 3.3V/5V supply architecture also lets it interface directly with legacy 5V industrial logic while using a 3.3V core.

🌐

Communications and Networking Interface Logic

In telecom and datacom line cards, the A54SX16-VQ100 serves as high-speed glue logic, protocol bridging, and backplane interface control. The SX family's deterministic, ASIC-like timing - with system performance up to 240 MHz on 0.35 um technology - suits time-critical framing, multiplexing, and status monitoring paths where SRAM FPGA reconfiguration delays are unacceptable. Its antifuse fabric adds no configuration-readback security exposure, valuable for carrier equipment. The 100-pin TQFP with 81 I/O provides enough pin count for parallel data buses and control signals while the 14x14 mm body keeps board area compact in 19-inch rack card designs.

✈️

Avionics and Defense Subsystems

Actel antifuse FPGAs are a longstanding choice in avionics and defense electronics because the one-time-programmed configuration is immune to single-event configuration upset and cannot be extracted or modified in the field. The A54SX16-VQ100 provides 16,000 gates and 924 cells for interfaces, arbiters, and built-in-test logic in mission computers and sensor heads. Instant-on operation ensures the subsystem is live before system-level health checks complete. For new designs requiring guaranteed temperature and screening grades, the industrial-qualified A54SX16P-VQG100I in the same footprint provides an upgrade path without PCB change.

🔧

ASIC Prototyping and Emulation

Before committing an ASIC mask set, designers historically mapped RTL into Actel SX FPGAs to validate logic behavior in silicon. The A54SX16-VQ100's 924-cell sea-of-modules fabric with dedicated flip-flop-rich S-cells maps synchronous ASIC-style code efficiently and yields timing up to 240 MHz, faster than typical SRAM FPGA prototypes of its era. Because antifuse programming permanently fixes the design, prototype builds on this device represent a true, non-modifiable golden reference for pre-silicon system validation. Designs needing more capacity move up the family to SX32 parts in larger packages while reusing much of the code base.

🖥️

Bridge and Bus Interface Logic

The A54SX16-VQ100 fits naturally as bus bridge logic between microprocessors, memory, and peripherals on boards that power up instantly. Its non-volatile antifuse configuration means the bridge is active before a host CPU finishes reset, avoiding the boot-order dependencies that SRAM FPGAs impose. The 5V-compatible supply option (4.75V-5.25V) lets the device sit directly on legacy 5V buses, while 81 I/O accommodate 16/32-bit data paths, address decoding, and handshaking. Deterministic pin-to-pin delays simplify meeting bus setup and hold budgets documented in the host controller datasheets.

📊

Test and Measurement Equipment

Bench and automated test instruments benefit from the A54SX16-VQ100 as timing, trigger, and scan-control logic. The SX architecture's low skew and deterministic delays let trigger chains meet tight channel-to-channel timing alignment, while 16K gates integrate counter arrays, comparators, and state machines that would otherwise need multiple PAL/GAL devices. One-time programmability guarantees the test station behaves identically across calibration cycles - an auditable advantage for ISO-controlled production test. Instant-on configuration also reduces instrument startup time compared to SRAM FPGA platforms that must load bitstreams.

What are the key specifications of A54SX16-VQ100?
The A54SX16-VQ100 is a Microsemi SX-family antifuse FPGA with 16,000 system gates, 924 logic cells, 81 user I/O, and a maximum system frequency of 240 MHz. It uses 0.35 um CMOS technology, operates from 3.0V-3.6V and 4.75V-5.25V supplies, and is packaged in a 100-pin TQFP measuring 14x14 mm. These figures are per the Microchip SX family datasheet and distributor listings.
What is the difference between A54SX16-VQ100 and A54SX16P-VQG100?
The A54SX16P-VQG100 is the SX16P variant of the same die family in the same 100-pin VQFP footprint. The 'P' (plus) variant offers higher speed grades and enhanced performance with a pin-compatible package, while the supply and gate-count characteristics remain in the same family range. Both are one-time-programmable antifuse FPGAs, so the SX16P can serve as a drop-in upgrade, though the design must be recompiled with the SX16P library before programming.
What is the best drop-in replacement for A54SX16-VQ100?
The best drop-in replacements are same-family 100-pin VQFP parts: A54SX16P-VQG100 (higher-performance SX16P in the identical footprint) for performance upgrades, and A54SX08-VQG100 when lower gate count (8K gates) suffices. All share the Actel SX antifuse architecture and 100-TQFP land pattern, so no PCB rework is needed. Note the design must be recompiled and reprogrammed since antifuse devices are one-time programmable.
Where to download A54SX16-VQ100 datasheet PDF?
The authoritative A54SX16-VQ100 datasheet is the '54SX Family FPGAs' datasheet published by Microchip Technology (which acquired Microsemi), available at ww1.microchip.com/downloads/aemdocuments/documents/fpga/ProductDocuments/DataSheets/a54sx_ds.pdf. It covers the full SX family including the SX16 device, packaging options for the 100-pin VQFP, and DC/AC electrical characteristics.
What is the price of A54SX16-VQ100?
Pricing for A54SX16-VQ100 is quote-based on XAIPART as of 2026-09-03 because this is a legacy Microsemi/Microchip antifuse FPGA with variable distributor stock. Octopart lists the part across 9 distributors with prices varying significantly by stock age and quantity. Contact XAIPART for a current quotation; Heisener listed in-stock quantity in the thousands at time of last verification.
Is A54SX16-VQ100 in stock?
Yes, secondary-market distributors report stock: Heisener listed 6,688 pieces in stock with lead time to be confirmed, and DigiKey shows the part under its Microchip listing. As a mature Actel-era device, availability comes primarily from distributor stock and excess inventory rather than new production, so buyers should verify real-time stock before committing to a production schedule.
Is A54SX16-VQ100 the same as A54SX16-VQG100?
They are essentially the same device with a packaging code difference: A54SX16-VQG100 is the green (RoHS-era) packaging variant of the SX16 in the 100-pin VQFP, while A54SX16-VQ100 is the original commercial packaging code. Both contain the identical 16K-gate SX16 die with 81 I/O in a 14x14 mm 100-TQFP. Cross-reference listings treat them as equivalent models within the Microsemi SX series.
Can A54SX16-VQ100 be used in industrial temperature applications?
The standard A54SX16-VQ100 is the commercial-grade variant. For industrial temperature ranges, Microsemi offered the A54SX16-VQ100I industrial variant and related industrial speed-grade suffixes such as the SX16P VQG100I parts. Before using the commercial part outside 0C to +70C conditions, verify the exact temperature grade on the device marking and order the 'I' suffixed ordering code for guaranteed industrial specification.
Hey Google, what can replace A54SX16-VQ100?
You can replace A54SX16-VQ100 with the same-package SX-family parts A54SX16P-VQG100, A54SX16P-1VQG100, A54SX16P-2VQG100, A54SX16P-VQG100I, or A54SX08-VQG100. All are Actel/Microsemi antifuse FPGAs in the 100-pin VQFP footprint, pin-compatible with the original. No cross-brand pin-compatible drop-in exists for Actel antifuse FPGAs; functional replacements from other FPGA vendors require PCB and code redesign.
Is A54SX16-VQ100 the same as A54SX16P-VQG100?
No, they are related but not identical. The A54SX16P-VQG100 is the SX16P (plus) version, a later, faster variant of the SX16 with improved speed grades, while sharing the same 100-pin VQFP footprint and antifuse architecture. A design compiled for the SX16 generally ports to the SX16P with recompilation, but the two are distinct orderable devices with different timing specifications, so verify timing closure after substitution.
When should I choose A54SX16 over A54SX08?
Choose the A54SX16 when your design needs more than the SX08's 8,000 gates - the SX16 provides 16,000 gates and 924 cells, doubling the logic capacity while remaining in the same family and, in the VQ100/VQG100 package, the same footprint. Choose the A54SX08-VQG100 to reduce cost when the implemented design fits comfortably below the SX08 capacity with at least 20-30% headroom for engineering changes.
When should I choose the A54SX16-VQ100 over an SRAM FPGA like Xilinx Spartan?
Choose A54SX16-VQ100 when instant-on operation, configuration security, and design permanence outweigh reprogrammability. The antifuse configuration is non-volatile, needs no external boot PROM, cannot be read back, and survives power cycling and radiation environments better than SRAM FPGAs. Choose an SRAM FPGA instead if you need in-field firmware updates, volatile-rich features such as block RAM and DSP slices, or a modern, actively supported toolchain.
What is the lead time for A54SX16-VQ100?
Lead time for A54SX16-VQ100 varies by supplier because it is sourced from distributor stock rather than fresh production. Heisener listed lead time as 'to be confirmed' with 6,688 pieces in stock, while DigiKey indicates the part ships today from available inventory. For quantity purchases above available stock, expect extended sourcing times typical of legacy Actel-era components; request a quote from XAIPART for current committed delivery.
What is the maximum operating frequency of A54SX16-VQ100?
The A54SX16 achieves a maximum system frequency of 240 MHz according to the SX family datasheet. Actual achievable frequency depends on the speed grade ordered, routing density of your design, and I/O timing requirements. The SX family's sea-of-modules architecture with dedicated C-cells and S-cells delivers deterministic, ASIC-like timing, so post-layout static timing analysis in the Actel/Microchip tools gives reliable frequency verification.
Where to find the A54SX16-VQ100 pinout for the 100-TQFP package?
The complete 100-pin VQFP pinout for A54SX16-VQ100 is provided in the '54SX Family FPGAs' datasheet from Microchip Technology in the packaging section, which lists pin names, I/O assignments, and power pins for each package option including the 100-pin VQFP. The 81 user I/O are arranged around the 14x14 mm quad flat package with dedicated VDD, GND, and programming pins. Download the PDF from microchip.com to obtain the pin-for-pin table used for PCB footprint creation.

Engineering reference data for A54SX16-VQ100 — comparison, design guidance, and compliance information.

Selection Guide

Choose the A54SX16-VQ100 when you need 16K antifuse gates with instant-on, secure, one-time programmable configuration in a 100-pin TQFP at the lowest cost point of the SX16 options. Choose the A54SX16P-VQG100 or its -1/-2 speed grades when your design needs the extra performance of the SX16P die in the same footprint, with recompilation. Choose the A54SX16P-VQG100I for industrial temperature environments where guaranteed -40C to +85C operation is contractual. Choose the A54SX08-VQG100 to cut cost when the design fits in 8K gates with headroom. All five share the same 100-VQFP land pattern, so footprint reuse across the family is safe. There is no cross-brand drop-in: any SRAM FPGA alternative requires PCB rework, a boot configuration device, and RTL changes.

Comparison with Alternatives

Parameter This Product A54SX16P-VQG100 A54SX16P-1VQG100 A54SX16P-2VQG100 A54SX16P-VQG100I A54SX08-VQG100
Package 100-TQFP (VQFP, 14x14 mm) 100-TQFP (VQFP) - same 100-TQFP (VQFP) - same 100-TQFP (VQFP) - same 100-TQFP (VQFP) - same 100-TQFP (VQFP) - same
Brand Microsemi (Actel) Microsemi (Actel) Microsemi (Actel) Microsemi (Actel) Microsemi (Actel) Microsemi (Actel)
System Gates 16000 16000 16000 16000 16000 8000
Logic Cells 924 924 924 924 924 [DATA_NEEDED]
Supply Voltage 3V-3.6V and 4.75V-5.25V [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED]
User I/O 81 81 81 81 81 81
Temperature Grade Commercial Commercial Commercial Commercial Industrial Commercial
Programming Technology Antifuse (OTP) Antifuse (OTP) Antifuse (OTP) Antifuse (OTP) Antifuse (OTP) Antifuse (OTP)

Key Differentiators

  • Double the logic capacity of the smaller sibling (vs A54SX08-VQG100)
  • Higher performance SX16P upgrade path (vs A54SX16P-2VQG100)
  • Cost advantage over industrial-grade variant (vs A54SX16P-VQG100I)

Design Notes

Antifuse devices are one-time programmable: once the A54SX16-VQ100 is programmed, its configuration cannot be altered or erased. Prototype thoroughly in the Actel/Microchip (Libero) simulation and layout flow, verify timing with post-layout static timing analysis, and reserve 15-20% spare gates and I/O for late engineering changes before committing production units. A logic bug discovered after programming requires scrapping the device.

The device supports dual supply ranges of 3.0V-3.6V and 4.75V-5.25V per the verified data. Confirm which rail powers I/O banks versus core on your board revision, and sequence supplies per the SX family datasheet power-up specification to avoid latch-up during hot insertion. Antifuse FPGAs draw negligible configuration current compared to SRAM FPGAs at power-up, simplifying inrush design on 5V backplane systems.

For the 100-TQFP 14x14 mm package, use a standard 0.5 mm pitch QFP-100 footprint and place 0.1 uF decoupling capacitors at all VDD pins within 3 mm of the package, one per pair of supply pins. Route high-speed I/O (up to 240 MHz system capability) with controlled impedance and keep stub lengths short. Follow the packaging section of the 54SX Family FPGAs datasheet for exact pin assignments when generating the footprint.

Compliance Information

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

Compliance data not present in verified web data. The related green packaging variant A54SX16-VQG100 is generally the RoHS-oriented ordering code; confirm RoHS status with Microchip for the specific lot 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 Actel Microchip Technology A54SX16-VQ100 A54SX16P-VQG100 A54SX08-VQG100 SX family FPGA antifuse FPGA one-time programmable field programmable gate array programmable logic device 100-TQFP VQFP quad flat package 0.35 um CMOS sea-of-modules architecture instant-on configuration industrial control ASIC prototyping Libero SoC design suite
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