Microchip Technology

A54SX16-1VQG100 - 16K Gate FPGA 81 I/O TQFP-100 | Microchip

MPN: A54SX16-1VQG100 ✓ Active
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3 V to 3.6 V (3.3 V nominal) Vdss 100-TQFP (VQFP 14x14 mm, 0.5 mm pitch, JESD-30 S-PQFP-G100) Package 280 MHz Speed
From $31.5 USD / Unit
MOQ: 1 |
Price updated: 2026-09-03
Volume Pricing
Qty Unit Price Extended
1 $42.5 $42.50
10 $39.8 $398.00
100 $36.2 $3,620.00
500 $33.9 $16,950.00
1,000 $31.5 $31,500.00
ℹ️ All prices are in USD

Drop-in alternatives for A54SX16-1VQG100 — 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:

A54SX16-2VQG100

✅ Drop-In
Microsemi
📦 100-TQFP
SX (Actel/Microsemi SX FPGA) · 16000 gates · 924 cells · 1452 · 81 · 320 MHz · -2 · 0.35 um

✓ In Stock

$48.9 / Unit

View Datasheet →

A54SX16-VQG100

✅ Drop-In
Microsemi
📦 100-TQFP
24000 gates · 924 cells (1452 modules) · 81 · 240 MHz · 0.35 um CMOS · 3 V to 3.6 V · 4.75 V to 5.25 V · Antifuse (One-Time Programmable, non-volatile)

✓ In Stock

$55.8 / Unit

View Datasheet →

A54SX16-VQG100I

✅ Drop-In
Microsemi
📦 100-TQFP
Antifuse FPGA (SX family) · 24000 gates · 924 cells · 1452 LABs · 81 · 240 MHz · 0.35 um CMOS · 3 V to 3.6 V

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Contact for price

View Datasheet →

A54SX16P-1VQG100I

✅ Drop-In
Microsemi
📦 100-TQFP
Actel SX (A54SX16P) · 16,000 · 924 · 1452 · 280 MHz · 0.35 um CMOS (antifuse) · 3.3 V / 5 V · 81

✓ In Stock

$1870.24 / Unit

View Datasheet →

A54SX16P-1VQG100

✅ Drop-In
Microchip Technology
📦 100-TQFP
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

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A54SX16P-VQG100I

✅ Drop-In
Microchip Technology
📦 100-TQFP
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 →

A54SX16-1VQG100 Maximum Ratings & Electrical Characteristics

Family Actel SX (antifuse FPGA)
Equivalent Gates 16000
Logic Cells / Modules 924 cells (Jotrin listing)
CLBs 1452
Number of I/O 81
Maximum System Frequency 280 MHz
Core Supply Voltage 3 V to 3.6 V (3.3 V nominal)
I/O Supply Voltage 4.75 V to 5.25 V (5 V nominal)
Process Technology 0.35 um CMOS antifuse
Programming Type One-time programmable (antifuse), non-volatile
Package 100-TQFP (VQFP 14x14 mm, 0.5 mm pitch, JESD-30 S-PQFP-G100)
Mounting Type Surface Mount
Speed Grade -1
Series SX

A54SX16-1VQG100 100-tqfp (vqfp 14x14 mm, 0.5 mm pitch, jesd-30 s-pqfp-g100) Pin Configuration Guide

Complete pinout information for A54SX16-1VQG100 (100-tqfp (vqfp 14x14 mm, 0.5 mm pitch, jesd-30 s-pqfp-g100) 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, 0.5 mm pitch, jesd-30 s-pqfp-g100) package pinout diagram for A54SX16-1VQG100

No detailed pinout data available for A54SX16-1VQG100.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for A54SX16-1VQG100 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

A54SX16-1VQG100 is suitable for 6 applications: Industrial Control and Automation, Aerospace and Defense Logic Replacement, Legacy 5V Bus Interface Bridging, Telecommunications Line Cards, ASIC Prototyping and Glueless Integration, Secure Embedded Control.

🏭

Industrial Control and Automation

The A54SX16-1VQG100 fits industrial controllers because its 16,000 antifuse gates and 81 user I/O integrate counters, sequencers, and bus-interface logic that would otherwise need several 5 V TTL devices. Its sea-of-modules architecture sustains deterministic timing at up to 280 MHz, so state machines behave identically part-to-part without software configuration risk. In a PLC I/O card, the device sits between the backplane and isolation circuitry, with its 4.75 V to 5.25 V I/O rail connecting directly to legacy 5 V signals while the 3.0 V to 3.6 V core keeps dynamic power low. Because the configuration is non-volatile antifuse, the card is functional within microseconds of power-up and cannot be corrupted by noise or radiation-induced configuration upset, a tangible reliability benefit over SRAM FPGAs in electrically harsh factory environments.

✈️

Aerospace and Defense Logic Replacement

Defense and avionics sustaining programs favor the A54SX16-1VQG100 because antifuse configuration cannot be read back, providing inherent design security, and it tolerates power interruptions without losing its function. Replacing obsolete ASIC or SSI/MSI glue logic with one 16,000-gate device reduces board area, component count, and assembly cost while preserving a proven 5 V I/O interface to legacy backplanes. The -1 speed grade timing models in the Microchip 54SX datasheet support formal worst-case timing analysis required by qualification paperwork. Designers should complete full gate-level simulation before programming, since antifuse programming is permanent; a common flow is to validate on an SX-A device first, then commit the production A54SX16-1VQG100. The industrial-temperature A54SX16-VQG100I variant covers extended environmental ranges in the same footprint.

🔧

Legacy 5V Bus Interface Bridging

Many installed systems still run 5 V TTL or 5 V CMOS backplanes, and most modern logic cannot survive 5 V signaling. The A54SX16-1VQG100 solves this directly: its I/O ring is powered from 4.75 V to 5.25 V while the core runs at 3.0 V to 3.6 V, so 81 I/O can drive and receive 5 V-level signals without level translators. Typical roles include VME/ISA-style bus monitoring, address decoding, and handshake generation, where the 280 MHz-class fabric easily exceeds bus timing requirements. Because the part is non-volatile, the bridge is active at power-on before a host completes initialization, which matters for systems that sample bus state during boot. Decouple both rails separately and verify absolute maximum ratings on the 5 V rail during transients per the datasheet.

🌐

Telecommunications Line Cards

Telecom line cards use the A54SX16-1VQG100 for framing, counting, alarm scanning, and control-plane glue logic between physical-layer devices and the card controller. The 16,000-gate capacity accommodates multiple T1/E1-style support functions, and the -1 speed grade's deterministic routing means timing sign-off done once remains valid across production lots. The antifuse fabric draws low static power, which reduces the per-card power budget in high-density shelves, and the non-volatile configuration removes the cost and failure points of boot PROMs, a meaningful MTBF improvement across thousands of cards. Designers typically pair the FPGA with precision converters such as the ADS1220IPWR for supervision channels. For new designs, evaluate the pin-compatible SX16P generation (A54SX16P-1VQG100I) for improved speed and power in the identical footprint.

🖥️

ASIC Prototyping and Glueless Integration

Before committing to an ASIC mask set, engineers use the A54SX16-1VQG100 to validate control logic and datapath blocks in-system at realistic speeds. The 280 MHz-capable sea-of-modules fabric outpaces typical SRAM FPGAs of the same era for simple, regular logic, and the 16,000-gate capacity suits address decoders, FIFO controllers, and protocol state machines. Because the antifuse part is permanently programmed, prototype iterations require new devices; teams commonly debug on pin-compatible SX-A or SX16P devices and reserve programmed A54SX16-1VQG100 parts for customer demonstrations and pilot builds. The 100-pin TQFP with 0.5 mm pitch is hand-solderable for lab bring-up, and 81 I/O give ample probe and expansion access. This makes the device a low-risk stepping stone between simulation and silicon.

🎥

Secure Embedded Control

Applications that must resist cloning benefit from the A54SX16-1VQG100's one-time-programmable antifuse fabric: unlike SRAM FPGAs, there is no bitstream to intercept at boot and no configuration memory to read back, so proprietary algorithms loaded into the 16,000 gates are effectively physically protected. Typical secure-control roles include authentication of sensor modules, license-key logic, and anti-tamper sequencers in commercial and government equipment. The instant-on characteristic means security logic is active within microseconds of power application, closing the boot window that bitstream-loading architectures expose. The industrial-temperature A54SX16-VQG100I in the same 100-TQFP footprint supports harsh deployments. Combine with a secure authentication IC or crypto element on the I/O side for layered protection; XAIPART stocks companion ISOCOM/ISO devices for isolated interfaces.

What are the key specifications of A54SX16-1VQG100 that engineers should know?
The A54SX16-1VQG100 is a Microsemi/Microchip SX-family antifuse FPGA with 16,000 equivalent gates, 81 user I/O, and a maximum system frequency of 280 MHz. It is fabricated in 0.35 um CMOS antifuse technology, runs from a 3.0 V to 3.6 V core supply with 4.75 V to 5.25 V I/O supply, and is packaged in a 100-pin TQFP (14x14 mm, 0.5 mm pitch). It is one-time programmable and non-volatile, so it needs no configuration PROM.
What is the supply voltage of the A54SX16-1VQG100?
The A54SX16-1VQG100 uses dual supply rails: the core operates from 3.0 V to 3.6 V (3.3 V nominal) while the I/O ring operates from 4.75 V to 5.25 V (5 V nominal), per the Microsemi specification page. This dual-voltage scheme lets the device interface directly with legacy 5 V TTL logic while keeping internal power low. Always decouple both rails independently and check your PCB power tree supports both voltages.
What is the difference between A54SX16-1VQG100 and A54SX16-2VQG100?
The difference is the speed grade: the -1 suffix denotes the standard speed grade, while -2 is a faster speed grade with lower routing and logic delays, enabling higher system performance in the same 100-TQFP package. Logic capacity (16,000 gates), I/O count (81), and supply voltages are identical. Choose the -2 grade only if your timing closure at -1 fails; the -1 grade is typically lower cost.
Can A54SX16-VQG100I replace A54SX16-1VQG100?
Yes. The A54SX16-VQG100I is the industrial-temperature variant in the same 100-pin VQFP/TQFP package with the same 16,000-gate capacity and 81 I/O. The 'I' suffix indicates the extended industrial temperature range, which covers the commercial range, so it is a drop-in replacement in the opposite direction is not guaranteed. Verify availability and price, as industrial-graded parts usually carry a cost premium.
Is there a cross-brand equivalent for the A54SX16-1VQG100 from Xilinx or Intel?
No true drop-in cross-brand equivalent exists. The A54SX16-1VQG100 is a one-time-programmable antifuse FPGA, while Xilinx XC4000/Spartan and Intel (Altera) FLEX parts are SRAM-based with completely different pinouts, configuration schemes, and supply requirements. Any cross-brand migration requires PCB rework, pin remapping, and design recompilation. For same-footprint replacements, stay within the Actel SX/SX-A family speed and temperature grades.
When should I choose the A54SX16-1VQG100 over an SRAM FPGA?
Choose the A54SX16-1VQG100 when you need instant-on, non-volatile operation without an external configuration device, high design security (antifuse fabric cannot be read back), direct 5 V TTL I/O compatibility, or low static power. Choose an SRAM FPGA instead when you need in-field reconfigurability, larger gate counts, or embedded memory blocks. For fixed-function 16K-gate logic in defense or industrial hardware, the antifuse SX device is often the safer and simpler choice.
What is the best drop-in replacement for the A54SX16-1VQG100?
The best drop-in replacements are same-family variants in the identical 100-pin VQFP package: A54SX16-2VQG100 (faster -2 speed grade), A54SX16-VQG100 (commercial standard grade), A54SX16-VQG100I (industrial temperature), and A54SX16P-1VQG100I (SX16P generation, higher performance, same footprint). All are pin-to-pin compatible and reprogrammable with the same Libero/Macroflow design flow, so no PCB change is needed.
Where can I buy the A54SX16-1VQG100 and what does it cost?
The A54SX16-1VQG100 is available from distributors including DigiKey and brokers listed on Octopart, which aggregates pricing from 4 distributors. On XAIPART, pricing as of 2026-09-03 starts at 42.50 USD at quantity 1, dropping to about 31.50 USD at 1,000 pieces. Heisener lists stock in the thousands of pieces, but lead times at brokers are typically quoted on request, so confirm availability before scheduling production.
Is the A54SX16-1VQG100 in stock and what is the lead time?
Yes, stock exists in the distribution channel: Heisener reports 5,392 pieces in stock, and DigiKey shows the part as orderable with same-day shipping. Broker lead times are listed as 'to be confirmed' with expedited delivery windows of roughly one week. For production volumes, request formal quotes because mature antifuse FPGAs can experience allocation; keep safety stock or qualify a same-package alternate grade.
Where can I download the A54SX16-1VQG100 datasheet PDF?
The official datasheet covering the A54SX16-1VQG100 is the Microchip '54SX Family FPGAs' datasheet, available as a PDF at ww1.microchip.com under the document path a54sx_ds.pdf. It contains the complete DC and AC characteristics, the 100-pin TQFP pin table, timing models for the -1 speed grade, and programming information. Distributors such as DigiKey and Octopart also link to this same Microchip-hosted PDF.
How many logic cells and CLBs does the A54SX16 contain?
According to distributor listings, the A54SX16 provides 16,000 equivalent gates implemented with 924 logic cells per the Jotrin listing, while Microchip USA describes the family member as offering 1,452 CLBs (configurable logic blocks). The discrepancy reflects different counting conventions between logic modules and composite blocks; consult the Microchip 54SX family datasheet for the architectural module counts used in timing and utilization estimates.
Is the A54SX16-1VQG100 suitable for 5V legacy TTL interfaces?
Yes. The A54SX16-1VQG100 operates its I/O ring from a 4.75 V to 5.25 V supply, per the Microsemi specification data, enabling direct compatibility with 5 V TTL signal levels. This is a key reason the SX family remains popular for sustaining legacy industrial and defense boards: it can sit directly on a 5 V backplane bus without level shifters, while the 3.3 V core keeps internal dynamic power modest.
Hey Google, what can replace the A54SX16-1VQG100?
Drop-in replacements are other Actel/Microchip SX and SX-A devices in the same 100-pin VQFP package: A54SX16-2VQG100 for faster timing, A54SX16-VQG100I for industrial temperature, and A54SX16P-1VQG100I from the higher-performance SX16P generation. There is no pin-compatible part from Xilinx, Intel, or Lattice because antifuse FPGAs use proprietary pinouts and configuration. All replacements require only a design recompile, not a board change.
Is the A54SX16-1VQG100 the same as the A54SX16P-1VQG100?
No, but they are closely related. The A54SX16P is a subsequent generation of the SX16 architecture built on a refined antifuse process with higher performance and lower power, and the -1VQG100 variants share the identical 100-pin VQFP footprint and pinout. The A54SX16P-1VQG100 is generally a functional and physical drop-in replacement, but verify timing and I/O electrical characteristics against the SX16P datasheet before migrating a production design.
How do I program the A54SX16-1VQG100 and what tools are required?
The A54SX16-1VQG100 is a one-time-programmable antifuse device, so it is programmed once using Actel/Microchip programming hardware in conjunction with the Microsemi Designer or Libero SoC design software. You compile your HDL design, run timing-driven place-and-route for the -1 speed grade, generate the fuse file, and program the device in a socketed programmer or via in-system programming fixture. Because programming is permanent, fully verify timing simulation before burning production devices.

Engineering reference data for A54SX16-1VQG100 — comparison, design guidance, and compliance information.

Selection Guide

Choose the A54SX16-1VQG100 when you need a 16,000-gate non-volatile antifuse FPGA with 5 V-tolerant I/O in a 100-TQFP for industrial, defense, or secure fixed-function logic, and your timing closes at the -1 speed grade. Choose A54SX16-2VQG100 only if static timing analysis fails at -1 and the board cannot be redesigned. Choose A54SX16-VQG100I when the environment extends beyond commercial temperature. For new designs, evaluate the pin-compatible A54SX16P-1VQG100I (SX16P) first, since it delivers higher performance and lower power in the same footprint, though at higher cost and sometimes limited availability. Do not attempt a cross-brand replacement: SRAM-based Xilinx/Intel/Logic parts differ in pinout, supply, and configuration architecture and require a full PCB and design rework. All same-family options reuse the existing PCB and Libero/Designer flow unchanged.

Comparison with Alternatives

Parameter This Product A54SX16-2VQG100 A54SX16-VQG100I A54SX16P-1VQG100I A54SX16P-1VQG100
Package 100-TQFP (14x14 mm, 0.5 mm pitch) 100-TQFP - same 100-TQFP - same 100-TQFP - same 100-TQFP - same
Brand Microchip Technology (Microsemi/Actel) Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Equivalent Gates 16000 16000 16000 16000 (SX16P generation) 16000 (SX16P generation)
User I/O 81 81 81 [DATA_NEEDED] [DATA_NEEDED]
Speed Grade -1 -2 (faster) standard -1 (SX16P, higher perf) -1 (SX16P, higher perf)
Supply Voltage 3.0-3.6 V core / 4.75-5.25 V I/O 3.0-3.6 V / 4.75-5.25 V 3.0-3.6 V / 4.75-5.25 V [DATA_NEEDED] [DATA_NEEDED]
Temperature Range [DATA_NEEDED] Commercial Industrial (-40C to +85C typical) Industrial Commercial
Configuration Type Antifuse OTP, non-volatile Antifuse OTP Antifuse OTP Antifuse OTP Antifuse OTP

Key Differentiators

  • Non-volatile antifuse fabric, no boot device (vs A54SX16-2VQG100)
  • Lower cost than faster grade (vs A54SX16-2VQG100)
  • Higher performance successor in same footprint (vs A54SX16P-1VQG100I)

Design Notes

The A54SX16-1VQG100 requires two rails: 3.3 V nominal core (3.0-3.6 V) and 5.0 V nominal I/O (4.75-5.25 V). Power the core from a precision LDO or buck converter and never swap the rails; applying 5 V to the core pins damages the device permanently. Decouple each rail with at least 10 uF bulk plus 0.1 uF ceramic per supply pin group. Because antifuse fabric draws low static current, the core rail is usually the smaller load; verify total dynamic current with Microsemi Designer power estimation before sizing regulators.

Antifuse devices are one-time programmable: a single incorrect fuse file permanently destroys the unit. Always complete post-layout timing simulation and, where possible, validate on an SX-A or SX16P device before programming the production A54SX16-1VQG100. Confirm the speed-grade compiler setting matches -1; compiling for -2 and programming a -1 part produces a design that violates its own timing. Keep revision-controlled fuse files mapped to board serial numbers to avoid mis-programming in production.

The 100-TQFP footprint uses 0.5 mm lead pitch with a 14x14 mm body; specify the land pattern per the JESD-30 S-PQFP-G100 outline and use a no-clean or water-wash solder process with stencil apertures sized to prevent bridging on the fine pitch. Route the unused 81-I/O budget as inputs with board-level pull-downs or configure as defined in your design to avoid floating nodes. Keep 5 V I/O traces separated from sensitive analog routing, and place series termination on long 5 V bus lines to control ringing.

Compliance Information

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

Compliance data not stated in the provided web data; the 'G' suffix in TQG commonly denotes RoHS/green packaging per Microchip conventions, but this must be confirmed on the official Microchip product page.

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

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Related Components & Terms

Microchip Technology Microsemi Corporation Actel A54SX16-1VQG100 A54SX16-2VQG100 A54SX16-VQG100I A54SX16P-1VQG100I SX family FPGA SX-A family antifuse FPGA one-time programmable field-programmable gate array FPGA programmable logic 100-TQFP VQFP QFP package family surface mount 5V TTL I/O sea-of-modules architecture 0.35 um CMOS RoHS JESD-30 S-PQFP-G100 Libero SoC
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