A54SX16-2VQ100 - 24K Gate SX FPGA, 81 I/O, TQFP-100 | Microsemi
MPN: A54SX16-2VQ100 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $42.5 | $42.50 |
| 10 | $39.8 | $398.00 |
| 100 | $35.9 | $3,590.00 |
| 500 | $32.4 | $16,200.00 |
| 1,000 | $29.75 | $29,750.00 |
Drop-in alternatives for A54SX16-2VQ100 — 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-2VQ100
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX16-2VQG100
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX16-2VQG100I
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX16P-2VQG100I
✅ Drop-In✓ In Stock
$44 / Unit
View Datasheet →A54SX16P-2VQG100
✅ Drop-In✓ In Stock
$30.1 / Unit
View Datasheet →A54SX16P-1VQG100
✅ Drop-In✓ In Stock
$25.1 / Unit
View Datasheet →A54SX16P-VQG100M
✅ Drop-In✓ In Stock
$42 / Unit
View Datasheet →A54SX16-2VQ100 Maximum Ratings & Electrical Characteristics
| Manufacturer | Microsemi (Microchip Technology) |
| Family | SX (54SX) Antifuse FPGA |
| System Gates | 24000 (16K system gates, 924 cells) |
| User I/O | 81 |
| Speed Grade | -2 (up to 320 MHz toggle) |
| Supply Voltage (Core) | 3 V to 3.6 V |
| Supply Voltage (I/O) | 4.75 V to 5.25 V |
| Operating Temperature | 0C to +70C (TA) |
| Package / Case | 100-TQFP (VQFP-100, 14x14 mm) |
| Supplier Device Package | 100-VQFP (14x14) |
| Mounting Type | Surface Mount |
| Process Technology | 0.35 um CMOS antifuse |
| Programming Technology | Antifuse (one-time programmable, nonvolatile) |
| Packaging | Tray |
| RoHS Status | Non-compliant |
| Product Status | Obsolete |
| Series | SX |
A54SX16-2VQ100 100-vqfp (14x14) Pin Configuration Guide
Complete pinout information for A54SX16-2VQ100 (100-vqfp (14x14) 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 A54SX16-2VQ100.
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
A54SX16-2VQ100 is suitable for 6 applications: Glue Logic Integration and ASIC Prototyping, Industrial Control and Automation, Telecommunications Line Cards, Legacy Avionics and Defense Sustainment, Test and Measurement Instrumentation, RoHS Remediation of Existing SX-Based Boards.
Glue Logic Integration and ASIC Prototyping
The A54SX16-2VQ100 consolidates address decoders, bus transceivers, state machines, and interface adapters that would otherwise occupy dozens of 74-series devices. Its 24,000 antifuse gates and 81 user I/O provide enough capacity to absorb surrounding SSI/MSI glue logic in a single 14x14 mm TQFP, cutting board area and assembly cost. The 5V-tolerant I/O ring interfaces directly with legacy TTL buses, while the 3.3V core keeps static power low. Because the antifuse fabric is programmed once and never loses configuration, a prototype compiled in the same flow as production silicon behaves identically at power-up, making the SX family a low-risk ASIC prototyping vehicle.
Recommended
Industrial Control and Automation
In PLC I/O cards, motor-control interface panels, and sensor aggregation boards, the A54SX16-2VQ100 provides deterministic, instantly-available logic with no configuration boot delay - critical for systems that must be active within microseconds of power application. The 81 user I/O handle parallel encoder inputs, limit switches, and relay drive interfaces at 5V logic levels, while the -2 speed grade's 320 MHz toggle capability far exceeds industrial timing needs, giving generous timing margin over the 0C to +70C range. The permanent antifuse configuration also eliminates configuration-corruption field failures caused by radiation or power glitching, a common reliability concern with SRAM FPGAs on electrically noisy factory floors.
Recommended
Telecommunications Line Cards
Telecom line-card support logic - framing interface glue, backplane handshaking, and LED/alarm control - benefits from the A54SX16-2VQ100's combination of fast deterministic interconnect and 5V-tolerant I/O that talks directly to legacy backplane signalling. The sea-of-modules architecture delivers predictable pin-to-pin delays, simplifying timing closure across the 81 user I/O. Low static power from the antifuse fabric reduces card-level thermal budget pressure in high-density shelves. For sustainment of NEBS-era equipment still specifying the original SX family, the 100-TQFP VQ100 package fits the existing footprint, and recompiled green variants (VQG100) drop onto the same land pattern when RoHS rework is required.
Recommended
Legacy Avionics and Defense Sustainment
Although the commercial A54SX16-2VQ100 is rated 0C to +70C, the SX antifuse architecture persists in defense and avionics sustainment programs because its configuration cannot be upset by radiation-induced bit flips - there are no configuration bits to corrupt. Design security is inherent: the programmed netlist cannot be read back, protecting proprietary algorithms in deployed hardware. For extended-temperature programs, the A54SX16-2VQG100I provides -40C to +85C operation in the identical 100-TQFP footprint, requiring only recompilation. Lifetime-buy strategies typically pair the commercial part with its industrial I-grade sibling to cover all deployed environmental envelopes from one design database.
Recommended
Test and Measurement Instrumentation
Bench instruments, interface adapters, and production test fixtures use the A54SX16-2VQ100 as a fast, reprogrammable-at-design-time (one-time programmable per unit) controller of timing generators, comparators, and pattern muxes. The -2 speed grade supports toggle rates up to 320 MHz, adequate for high-speed clock division and edge-aligned pattern generation, while deterministic antifuse interconnect guarantees repeatable skew performance unit-to-unit - important for calibrated measurements. Dual 3.3V/5V rails let the FPGA bridge between a 5V TTL test fixture world and a 3.3V digital control section without level shifters across its 81 I/O.
Recommended
RoHS Remediation of Existing SX-Based Boards
Boards designed around the original tin-lead A54SX16-2VQ100 face component obsolescence under RoHS directives. Because the Pb-free (A54SX16P-2VQ100) and green (A54SX16-2VQG100) variants share the exact same die, pinout, and 100-TQFP footprint, remediation requires no PCB respin: swap the MPN, recompile the same design source, program the new antifuse device, and the board is RoHS-compliant. The only verification needed is solder-profile compatibility with the lead-free finish and a timing recheck if stepping from -2 to -1 speed grade. This makes the SX family one of the cleanest FPGA migration cases available for legacy-product compliance programs.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16-2VQ100 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16P-2VQ100 | A54SX16-2VQG100 | A54SX16-2VQG100I | A54SX16P-1VQG100 |
|---|---|---|---|---|---|
| Package | 100-TQFP (VQ100, 14x14 mm) | 100-TQFP - same | 100-TQFP - same | 100-TQFP - same | 100-TQFP - same |
| Brand | Microsemi (Microchip Technology) | Microchip Technology | Microsemi | Microsemi | Microchip Technology |
| System Gates | 24000 | 24000 | 24000 | 24000 | 24000 |
| User I/O | 81 | 81 | 81 | 81 | 81 |
| Speed Grade | -2 (up to 320 MHz) | -2 | -2 | -2 | -1 (slower) |
| Supply Voltage | 3V-3.6V core, 4.75V-5.25V I/O | 3V-3.6V, 4.75V-5.25V | 3V-3.6V, 4.75V-5.25V | 3V-3.6V, 4.75V-5.25V | 3V-3.6V, 4.75V-5.25V |
| Operating Temperature | 0C to +70C | 0C to +70C | 0C to +70C | -40C to +85C | [DATA_NEEDED] |
| RoHS / Lead Finish | Non-compliant (tin-lead) | Pb-free | Green / RoHS | Green / RoHS | Pb-free green |
| Lifecycle Status | Obsolete | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Instant-on nonvolatile configuration (vs A54SX16P-2VQ100 (and any SRAM FPGA))
- 5V-tolerant dual-rail I/O (vs A54SX16P-1VQG100)
- Inherent design security (vs A54SX16-2VQG100)
- Trade-off: commercial temperature only (vs A54SX16-2VQG100I)
Design Notes
Provide separate decoupling for the two supply rails: 0.1 uF ceramic per 3-4 VCC/VD pins plus at least 10 uF bulk on both the 3.3V core rail and the 5V I/O rail. Because this is an antifuse device, static current is very low, but dynamic I/O switching current on the 5V ring with 81 outputs can be significant - estimate ring current from your I/O macro count and load capacitance before sizing the 5V regulator. Estimated: 40 simultaneously switching outputs at 20 pF load, 10 MHz average toggle, draws roughly 40 x 20pF x 5V x 10MHz = 40 mA of dynamic current on VCI.
Antifuse devices are one-time programmable: a design error discovered after programming scraps the device. Always complete full simulation and static timing analysis at the -2 speed grade in Microsemi Designer before programming. Never substitute a -1 speed grade part without re-running timing closure, as -1 delays are slower and a -2-closed design can fail at -1. Also note the 0C to +70C commercial range - deploying this exact MPN in an unheated outdoor enclosure violates the datasheet limits; select the VQG100I industrial variant instead.
The 100-TQFP uses a 0.5 mm lead pitch; specify a solder-mask-defined land pattern per the Microchip/Microsemi package drawing and allow 1-2 extra mils of stencil reduction to prevent bridging. Use the exposed pin-1 dot for orientation and keep high-speed clock traces short with series termination near the driver. If migrating to the Pb-free A54SX16P-2VQ100 for RoHS, the land pattern is unchanged - only the assembly solder profile (SAC305, peak ~245-250C) needs updating.
The 5V I/O ring can source substantial edge rates; for long backplane or cable runs, enable the slew-limited output option in the I/O macro attributes, or add 22-33 ohm series resistors on outputs driving unterminated lines. Ground bounce across 81 outputs is best controlled by assigning switching banks evenly across the four sides of the TQFP and preserving the datasheet's dedicated ground pin frame - do not reassign power/ground pins in the constraint file.
Compliance Information
RoHS non-compliant per Microchip USA product data (tin-lead lead finish). Pb-free green variants (VQG100 / PQG suffixes) exist in the same family for compliant builds.
