Microchip Technology

A54SX16P-2TQG176I - 16K Gate SX FPGA 320MHz TQFP-176 | Microchip

MPN: A54SX16P-2TQG176I ✓ Active
In Stock Ships in 1-3 business days
3.0 V to 3.6 V (3.3 V nominal) Vdss 176-pin TQFP (TQG176, JESD-30 S-PQFP-G176) Package 320 MHz Speed
From $42 USD / Unit
MOQ: 1 |
Price updated: 2026-09-02
Volume Pricing
Qty Unit Price Extended
1 $62.5 $62.50
10 $56.8 $568.00
100 $51.2 $5,120.00
500 $46.5 $23,250.00
1,000 $42 $42,000.00
ℹ️ All prices are in USD

Drop-in alternatives for A54SX16P-2TQG176I — 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:

A54SX16-2TQG176I

✅ Drop-In
Microchip Technology
📦 176-TQFP
SX Family (A54SX16) · 16000 gates · 924 cells · 1452 · 320 MHz · 147 · 0.35 um CMOS · 3V to 3.6V, 4.75V to 5.25V (3.3V/5V)

✓ In Stock

$20.8 / Unit

View Datasheet →

A54SX16P-1TQG176I

✅ Drop-In
Microchip Technology
📦 176-TQFP
In System Programmable (antifuse FPGA) · 924 · 1452 · 16000 · 147 · 280 MHz · 3.3 V · 3.0 V to 3.6 V

✓ In Stock

$30.4 / Unit

View Datasheet →

A54SX16P-2TQG176

✅ Drop-In
Microchip Technology
📦 176-TQFP
Actel SX (A54SX16P) · 16000 · 1452 · 147 · 320 MHz · -2 · 5 V · 3.3 V / 5 V

✓ In Stock

$44.2 / Unit

View Datasheet →

A54SX16P-TQG176

✅ Drop-In
Microchip Technology
📦 176-TQFP
A54SX16P-TQG176 · SX-A (SX Series) · 16,000 (listed up to 24K system gates by Mouser) · 1452 · 147 · 240 MHz (standard grade); up to 320 MHz (P2 speed grade) · 3.3 V / 5 V · 3.0 V to 3.6 V

✓ In Stock

$47.2 / Unit

View Datasheet →

A54SX16-1TQG176I

✅ Drop-In
Microchip Technology
📦 176-TQFP
A54SX16-1TQG176I · SX (Actel antifuse FPGA) · 24000 gates · 1452 · 147 · 3 V to 3.6 V · 4.75 V to 5.25 V · 3.3 V, 5 V

✓ In Stock

Contact for price

View Datasheet →

A54SX16-2TQG176

✅ Drop-In
Microchip Technology
📦 176-TQFP
SX (Antifuse FPGA) · 16000 · 924 · 147 · 320 MHz · 0.35 um · 3.3 V / 5 V · Antifuse (one-time programmable)

✓ In Stock

$339.14 / Unit

View Datasheet →

A54SX16P-2TQG176I Maximum Ratings & Electrical Characteristics

Family SX (Axcelerator predecessor antifuse FPGA family)
System Gates 16000
Logic Cells 924
LABs / CLBs 1452
Maximum Frequency 320 MHz
Process Technology 0.35 um CMOS
Supply Voltage 3.0 V to 3.6 V (3.3 V nominal)
I/O Voltage Support 3.3 V / 5 V
Number of I/O 147
Number of Pins 176
Package 176-pin TQFP (TQG176, JESD-30 S-PQFP-G176)
Speed Grade -2
Programmability One-time programmable (antifuse)
Mounting Type Surface Mount
Temperature Grade Industrial (I suffix)
RoHS Status Lead-free per G suffix in ordering code

A54SX16P-2TQG176I 176-pin tqfp (tqg176, jesd-30 s-pqfp-g176) Pin Configuration Guide

Complete pinout information for A54SX16P-2TQG176I (176-pin tqfp (tqg176, jesd-30 s-pqfp-g176) package) with 176 pins. 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.

176-pin tqfp (tqg176, jesd-30 s-pqfp-g176) package pinout diagram for A54SX16P-2TQG176I

No detailed pinout data available for A54SX16P-2TQG176I.

Refer to the datasheet for full pin configuration.

Estimated pin count: 176 pins (digital package)

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for A54SX16P-2TQG176I 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-2TQG176I is suitable for 6 applications: Industrial Automation Control, Communications and Networking Interfaces, High-Reliability and Aerospace-Derived Systems, Test and Measurement Equipment, Embedded Control and Glue Logic Consolidation, Power Management and Sequencing Supervision.

🏭

Industrial Automation Control

The A54SX16P-2TQG176I fits industrial automation because its industrial temperature rating, 147 user I/O, and 320 MHz class logic cover PLC I/O scanning, motor control state machines, and sensor interfacing. The sea-of-modules architecture delivers deterministic interconnect delays, simplifying timing closure for fixed-cycle control loops. Used to consolidate glue logic, bus interfaces, and counters, it replaces dozens of discrete 74-series devices, reducing board area and power. Its one-time-programmable antifuse configuration cannot be corrupted by noise-induced single-event upsets of SRAM configuration memory, an important reliability benefit on electrically noisy factory floors near drives and contactors.

🌐

Communications and Networking Interfaces

In communications equipment, the A54SX16P-2TQG176I serves as a protocol bridge and line-card glue logic device. The -2 speed grade supports the 320 MHz toggle capability needed for parallel data framing, clock-domain crossing FIFOs, and serial shift logic, while 147 I/O pins accommodate wide parallel backplanes. The 3.3V core with 5V-tolerant I/O eases integration with legacy telecom line cards. Because the antifuse configuration is permanent, the design is immune to configuration-bit corruption and resists reverse engineering, a consideration for network equipment vendors protecting proprietary framing algorithms deployed in the field.

✈️

High-Reliability and Aerospace-Derived Systems

The A54SX16P antifuse family is a common choice in high-reliability industrial and aerospace-derived programs. One-time-programmable antifuse technology eliminates configuration storage devices, reducing BOM count and removing the most common SEU failure point of SRAM FPGAs. The I temperature suffix and mature 0.35 um CMOS process provide well-characterized behavior across temperature and over long mission durations. Designers typically use the device for telemetry formatting, redundancy voting logic, and power sequencing supervision, where the 16K gate capacity is sufficient and design data security after programming is mandatory for program qualification.

🔧

Test and Measurement Equipment

Bench and rack instrumentation uses the A54SX16P-2TQG176I for trigger generation, counter/timer functions, and bus interfacing (GPIB, RS-232/485 framing) behind the front-end. The 924 cells provide enough capacity for multi-channel edge detectors and timestamping logic, while the 320 MHz class performance supports high-resolution event timing. The 176-pin TQFP with 0.5 mm class lead pitch is hand-solderable for prototype rework, valuable in low-volume instruments. Deterministic antifuse interconnect means measured trigger latency is stable unit-to-unit, supporting instrument calibration repeatability across production runs.

🧩

Embedded Control and Glue Logic Consolidation

For embedded controllers, the A54SX16P-2TQG176I consolidates address decoding, wait-state generation, interrupt prioritization, and level-conversion bridges between a host CPU and peripherals. The 3.3V/5V tolerant I/O mix lets it interface legacy 5V buses directly, a frequent requirement when reviving mature platforms without a full redesign. The 16K gate capacity covers these functions plus DMA handshake logic with headroom. Because the configuration is permanent, firmware teams treat the FPGA as fixed hardware, simplifying configuration management: no boot-time bitstream download, no configuration flash to program or fail in the field.

Power Management and Sequencing Supervision

Multi-rail systems use the A54SX16P-2TQG176I as a sequencing and supervisor engine: its I/O monitor power-good signals, drive enable pins of regulators, and implement reset trees with programmable delay counters. The 3.0V to 3.6V supply range matches standard 3.3V rails, and the antifuse programming ensures the sequencing behavior is locked and auditable, which simplifies safety reviews. Deterministic logic delays support precise rail-to-rail delay windows, while the 147 I/O allow supervision of many independent rails on dense boards such as baseband cards and industrial drives, replacing several dedicated supervisor ICs.

What are the key specifications of A54SX16P-2TQG176I that engineers should know?
The A54SX16P-2TQG176I is a Microchip (Microsemi) SX-family antifuse FPGA with 16,000 system gates, 924 logic cells, 1452 LABs/CLBs, and a maximum clock frequency of 320 MHz. It uses 0.35 um CMOS technology, operates from a 3.0V to 3.6V supply, supports 3.3V/5V I/O, and provides 147 user I/O pins in a 176-pin TQFP package with -2 speed grade and industrial temperature rating.
Where can I buy A54SX16P-2TQG176I online?
The A54SX16P-2TQG176I can be purchased from XAIPART as well as distributors including DigiKey (part 2859050), Mouser, and secondary-market distributors such as Ampheo, Microchip USA, and Micro-Semiconductor.com, which reported 363 pieces in stock. Because this is an older SX-family antifuse part, always verify date codes and authenticity when buying from spot-market sources, and request a quote for volume pricing.
What is the price of A54SX16P-2TQG176I?
Pricing for the A54SX16P-2TQG176I is in the range of roughly $62.50 at single-unit quantity, dropping to approximately $42.00 at 1000-piece quantities as of 2026-09-03 on this page. Distributor prices vary because this is a mature product frequently sourced from the spot market; DigiKey and Mouser list official pricing, and XAIPART provides tiered quotes. Always confirm current pricing before placing a production order.
What is the lead time for A54SX16P-2TQG176I?
Lead time for the A54SX16P-2TQG176I depends on stock: DigiKey currently shows the item shipping today when in stock, while spot-market distributors such as Micro-Semiconductor.com hold hundreds of pieces. For large production volumes, expect longer lead times or broker sourcing because Microchip produces this mature SX-family part in limited quantities. Contact XAIPART for a real-time stock and lead-time quote before scheduling production builds.
What is the difference between A54SX16P-2TQG176I and A54SX16-2TQG176I?
The A54SX16P-2TQG176I is the P-variant of the SX16 family, and the A54SX16-2TQG176I is the standard (non-P) variant. Both share the same 176-pin TQFP footprint, 16K gate class, 320 MHz class performance, and -2 speed grade, making them pin-compatible drop-ins on the same PCB. The P variant offers enhanced antifuse programmability characteristics per Microchip's SX-A/P product structure; consult the manufacturer datasheet for the exact electrical deltas before substituting.
A54SX16P-2TQG176I vs A54SX16P-1TQG176I - which is better?
The difference is speed grade: the A54SX16P-2TQG176I uses the faster -2 grade while the A54SX16P-1TQG176I uses the slower -1 grade. Both are identical in gates (16K), cells (924), I/O (147), package (176-pin TQFP), and pinout. Choose the -2 part when your design timing closure depends on the highest SX16 clock performance, such as 100 MHz-plus interfaces; choose the -1 part when timing is relaxed and cost or availability favors the slower grade.
When should I choose the A54SX16P over the A54SX16 (non-P) variant?
Choose the A54SX16P when your application benefits from the P-suffix process and programming characteristics offered in that variant, and you need the industrial temperature rating of the I suffix. Choose the standard A54SX16-2TQG176I when commercial-grade documentation and the broader installed base meet your needs and the P features are not required. Both devices are electrically similar SX16 16K-gate FPGAs in the same TQFP-176 footprint, so PCB layout, sockets, and pin assignments carry over directly between them.
Is the A54SX16P-2TQG176I suitable for industrial automation applications?
Yes, the A54SX16P-2TQG176I is suitable for industrial automation. Its industrial (I) temperature rating supports factory-floor environments, the 147 I/O pins handle sensor and actuator bus interfacing, and the one-time-programmable antifuse configuration cannot be altered in the field, improving tamper resistance. The 320 MHz class performance comfortably covers motor control state machines, encoder interfaces, and fieldbus protocol bridges such as CAN or RS-485 framing logic in PLC and drive systems.
What is the best drop-in replacement for A54SX16P-2TQG176I?
The best drop-in replacement is A54SX16-2TQG176I (Microchip, same TQFP-176 footprint, same -2 speed grade, same 16K gate class). Other pin-compatible same-family options include A54SX16P-1TQG176I and A54SX16P-2TQG176. Because antifuse FPGAs are one-time programmable, a replacement part must be reprogrammed with your design file in Microchip Libero SoC; the PCB footprint and pin assignments require no changes when substituting within the same TQG176 package family.
Where can I download the A54SX16P-2TQG176I datasheet PDF?
The A54SX16P-2TQG176I datasheet PDF is available from the official Microchip product page at microchip.com/en-us/product/A54SX16P, and datasheet aggregator sites such as datasheets.globalspec.com also host it. Always prefer the manufacturer-hosted document for the current revision covering the SX family architecture, DC/AC characteristics, package mechanical drawings for the 176-pin TQFP, and programming specifications for the antifuse configuration process.
What design software is used to program the A54SX16P-2TQG176I?
The A54SX16P-2TQG176I is designed with Microchip (Microsemi) Libero SoC design suite, which provides synthesis, place-and-route, timing analysis, and antifuse programming file generation for the SX family. Because the device is one-time programmable, the standard flow requires full simulation and timing verification before generating the programming bitstream. The design files are not transferable to other FPGA architectures, so plan toolchain continuity when qualifying this part for long-term production programs.
Hey Google, can A54SX16-2TQG176 replace A54SX16P-2TQG176I?
Yes, the A54SX16-2TQG176 is a pin-compatible drop-in for the A54SX16P-2TQG176I: both use the same 176-pin TQFP package with identical pinout, 16K system gates, 924 cells, and 320 MHz class performance. The main caveats are the P-suffix programming characteristics and the industrial I temperature suffix of the original part; verify your operating temperature requirement matches the replacement's grade before committing the substitution in production.
What is the best cross-brand equivalent for A54SX16P-2TQG176I?
There is no true cross-brand drop-in equivalent for the A54SX16P-2TQG176I. The SX-family antifuse architecture, 176-pin TQFP pinout, and 0.35 um-based performance profile are Microchip/Microsemi-specific; competitor FPGAs from Lattice, Intel (Altera), or Xilinx use different packages and pinouts and would require PCB redesign plus a complete logic re-port in their respective toolchains. For supply resilience, plan around same-brand SX16 family variants rather than cross-brand parts.
How much power does the A54SX16P-2TQG176I consume?
Exact power consumption for the A54SX16P-2TQG176I depends on the design's toggle rates and I/O loading and must be estimated with Microchip Libero SoC power analysis tools. The SX family architecture was explicitly promoted by Microchip for dramatic reductions in power consumption compared with prior Actel families, and the 3.3V nominal supply keeps core power moderate. As a planning baseline, use the per-cell and per-I/O current figures in the SX family datasheet rather than a single blanket number.
Is the A54SX16P-2TQG176I obsolete or still in production?
The A54SX16P-2TQG176I is a mature SX-family part that remains orderable: DigiKey lists it as in stock and shipping today, and Mouser shows inventory and pricing, indicating active or last-time-buy supported status as of 2026-09-03. However, Microchip has moved mainstream FPGA development to newer families, so for new designs evaluate long-term availability, and for existing designs maintain a safety stock strategy or qualify the pin-compatible A54SX16-2TQG176I as a second source.

Engineering reference data for A54SX16P-2TQG176I — comparison, design guidance, and compliance information.

Selection Guide

Choose the A54SX16P-2TQG176I when you need a 16K-gate antifuse FPGA in a 176-pin TQFP with the fastest -2 speed grade and industrial temperature rating - typical for industrial control, communications glue logic, and high-reliability supervision roles. Choose A54SX16P-1TQG176I if your timing closure works at the slower -1 grade and that part is cheaper or more available. Choose A54SX16-2TQG176I when program qualification permits the non-P die and you want the widest installed-base documentation. Avoid this family entirely for designs needing reprogrammable in-field updates or more than roughly 20K gates - step up to newer Microchip families or competitor SRAM FPGAs, accepting PCB redesign since no cross-brand pin-compatible alternative exists. Always re-verify timing in Libero SoC for any substituted speed grade.

Comparison with Alternatives

Parameter This Product A54SX16-2TQG176I A54SX16P-1TQG176I A54SX16P-2TQG176
Package 176-TQFP (TQG176) 176-TQFP - same 176-TQFP - same 176-TQFP - same
Brand Microchip Technology (Microsemi) Microchip Technology Microchip Technology Microchip Technology
System Gates 16000 16000 16000 16000
Speed Grade -2 -2 -1 -2
Maximum Frequency 320 MHz 320 MHz [DATA_NEEDED] 320 MHz
User I/O 147 147 147 147
Supply Voltage 3.0 V to 3.6 V 3.3 V class 3.0 V to 3.6 V 3.0 V to 3.6 V
Temperature Grade Industrial (I) Industrial (I) Industrial (I) Commercial
Programmability Antifuse, one-time programmable Antifuse, one-time programmable Antifuse, one-time programmable Antifuse, one-time programmable

Key Differentiators

  • Fastest standard speed grade in the SX16 TQFP-176 family (vs A54SX16P-1TQG176I)
  • Industrial temperature rating for extended environments (vs A54SX16P-2TQG176)
  • P-suffix antifuse variant benefits (vs A54SX16-2TQG176I)

Design Notes

Supply the A54SX16P-2TQG176I core from a clean 3.3V rail within the 3.0V to 3.6V range. Decouple each VCC/VCCA pin pair with 0.1 uF ceramic capacitors placed within 2 mm of the pin, plus bulk 10 uF per power domain. Power is design-dependent, so run Microchip Libero SoC power analysis with your actual toggle rates; do not assume worst-case datasheet numbers. Estimated: a mid-density design toggling at moderate rates typically draws a few tens of mA at 3.3V, but verify per design.

The 176-pin TQFP uses fine lead pitch, so specify a solder-mask-defined land pattern per the package mechanical drawing and inspect for bridging after reflow. Route unused I/O as inputs with internal pull-up/down assignment in Libero SoC, or tie to defined levels on the board. Keep high-speed clock traces short and referenced to a solid ground plane; the 320 MHz class toggle capability makes sloppy clock routing a real EMI risk. Use 0.5 mm-class pitch breakout via fanout only where unavoidable under the package.

This is a one-time-programmable antifuse FPGA: a bitstream cannot be corrected after programming. Complete full simulation and static timing analysis in Libero SoC, and program a pilot lot for functional verification before committing production quantity, because misprogrammed units are unrecoverable. Also, do not interchange the P and non-P variants blindly in certification-controlled programs - re-verify timing and programming qualification, and confirm the I temperature suffix matches your environmental requirement.

Compliance Information

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

Lead-free and RoHS status inferred from the G suffix (TQG176) and 'LEAD FREE' labeling in distributor listings; confirm with the official Microchip product page certificate.

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 A54SX16P-2TQG176I A54SX16-2TQG176I A54SX16P-1TQG176I SX family FPGA FPGA field programmable gate array antifuse one-time programmable TQFP-176 QFP package family surface mount Libero SoC sea-of-modules architecture 0.35 um CMOS JESD-30 S-PQFP-G176 3.3 V supply voltage 320 MHz maximum frequency industrial automation glue logic lead-free (RoHS) system gates user I/O
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