A54SX16P-1PQG208 - 16K Gate SX FPGA 280MHz | Microchip
MPN: A54SX16P-1PQG208 ✓ Active| Qty | Unit Price | Extended |
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| 500 | $0 | $0.00 |
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Drop-in alternatives for A54SX16P-1PQG208 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX16P-1PQG208I
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View Datasheet →A54SX16P-2PQG208I
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A54SX16P-1PQG208 Maximum Ratings & Electrical Characteristics
| Family | SX (Axcelerator predecessor antifuse FPGA) |
| System Gates | 16000 |
| Logic Cells | 924 |
| Configurable Logic Blocks (CLBs) | 1452 |
| User I/O | 175 |
| Speed Grade | -1 |
| Maximum Clock Frequency | 280 MHz |
| Internal Performance | 320 MHz (family maximum) |
| Clock-to-Out (Pin-to-Pin) | 3.7 ns |
| Input Set-Up | 0.1 ns |
| Clock Skew | 0.25 ns |
| Technology | 0.35 um CMOS |
| Supply Voltage | 3.3 V |
| I/O Voltage | 3.3 V / 5.0 V tolerant |
| Programming Technology | Antifuse (one-time programmable, non-volatile) |
| Package | 208-Pin PQFP (PQG208) |
| Mounting Type | Surface Mount |
A54SX16P-1PQG208 208-pin pqfp (pqg208) Pin Configuration Guide
Complete pinout information for A54SX16P-1PQG208 (208-pin pqfp (pqg208) 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 A54SX16P-1PQG208.
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
A54SX16P-1PQG208 is suitable for 6 applications: PCI Bus Interface and Glue Logic, Industrial Automation and Motor Control, Communications and Networking Infrastructure, Test and Measurement Equipment, Aerospace and Defense Subsystems, Legacy System Life-Cycle Support and BOM Continuity.
PCI Bus Interface and Glue Logic
The SX family was explicitly engineered for 66 MHz PCI integration: the A54SX16P-1PQG208's 3.7 ns clock-to-out, 0.1 ns set-up, and 0.25 ns clock skew meet PCI timing with a single chip, enabling 100% resource utilization with full pin locking. The P-family's 5.0V-tolerant I/O connects directly to legacy 5V PCI signaling at 3.3V supply. Deployed between a host bridge and application ASICs, it consolidates address decode, arbitration, and data-path functions. The antifuse fabric guarantees fixed routing delays, so PCI setup/hold margins do not drift with routing changes - a key advantage over SRAM FPGAs whose timing can shift with each recompilation.
Recommended
Industrial Automation and Motor Control
Factory controllers and drive systems benefit from the A54SX16P's instant power-up behavior: the antifuse configuration is active within microseconds of supply ramp, so safety interlocks and I/O mapping are available immediately without boot latency or configuration device failure modes. The 16,000-gate capacity (1452 CLBs) integrates PWM generators, quadrature encoders, and state machines, while 175 user I/O handles parallel sensor and actuator interfaces. The 0.35 um CMOS process at 3.3V keeps static power low in sealed cabinets. For harsh environments, select the industrial-temperature A54SX16P-1PQG208I variant, which is pin-identical and requires no PCB change.
Recommended
Communications and Networking Infrastructure
Line cards and backplane adapters use the A54SX16P-1PQG208 for framing, deserialization glue, and address translation at up to 280 MHz internal clock rates. The sea-of-modules architecture provides the deterministic routing delays telecom designers need for fixed TDM timing budgets, and full pin locking under 100% utilization lets the PCB be finalized early in the project. 5.0V-tolerant I/O interfaces with older line-card logic families without translators. Because the fabric is one-time-programmable, deployed units cannot be reconfigured in the field - an often-mandated property in carrier equipment security reviews.
Recommended
Test and Measurement Equipment
Bench instruments and automated test fixtures exploit the SX16P's 0.25 ns clock skew and 320 MHz family-level internal performance to build multi-channel timing generators and trigger logic. The antifuse fabric's channel-to-channel timing repeatability matters when 16 measurement channels must switch within sub-nanosecond windows of each other. The 208-pin PQFP provides 175 user I/O for parallel instrument buses, probe multiplexing, and relay control. The -1 speed grade covers the majority of stimulus timing at 66-100 MHz system clocks; specify the -2 grade only where the deepest timing resolution is required, accepting its cost premium.
Recommended
Aerospace and Defense Subsystems
The Microsemi heritage of the SX family makes the A54SX16P-1PQG208 a natural fit for defense electronics requiring configuration immutability: antifuse cells cannot be read back or altered after programming, eliminating bitstream-extraction attack surfaces present in SRAM FPGAs. Power-up-instant operation suits radar trigger chains and missile-interface logic where configuration loading time is unacceptable. The 0.35 um antifuse process also exhibits tolerance characteristics valued in radiation-adjacent programs. Design teams typically pair the FPGA with military-temperature screening; confirm exact qualification flow with Microchip before committing the device to a new program.
Recommended
Legacy System Life-Cycle Support and BOM Continuity
For PCBs designed 10-20 years ago around the 208-pin PQFP SX16P, the A54SX16P-1PQG208 is the direct continuity part: it is the same active Microchip orderable listed today at DigiKey and Mouser. Where exact speed/temperature variants are scarce, the pin-identical A54SX16P-1PQG208I or A54SX16P-2PQG208I keeps the production line running without PCB respin, since the footprint and pinout are unchanged across the PQG208 family. Because antifuse design files are immutable, the original compiled programming data remains valid on any replacement unit - no RTL recovery or recompilation risk is introduced by the swap.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16P-1PQG208 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16P-1PQG208I | A54SX16P-2PQG208I | A54SX16P-PQG208 |
|---|---|---|---|---|
| Package | 208-Pin PQFP (PQG208) | 208-Pin PQFP (PQG208) - same | 208-Pin PQFP (PQG208) - same | 208-Pin PQFP (PQG208) - same |
| Brand | Microchip Technology (Microsemi) | Microchip Technology (Microsemi) | Microchip Technology (Microsemi) | Microchip Technology (Microsemi) |
| System Gates | 16,000 | 16,000 | 16,000 | 16,000 |
| Logic Cells / CLBs | 924 / 1452 | 924 / 1452 | 924 / 1452 | 924 / 1452 |
| User I/O | 175 | 175 | 175 | 175 |
| Speed Grade | -1 | -1 | -2 (faster) | Base |
| Operating Temperature | Commercial [DATA_NEEDED: exact range] | Industrial | Industrial | Commercial |
| Supply / I/O Voltage | 3.3 V / 5.0 V tolerant | 3.3 V / 5.0 V tolerant | 3.3 V / 5.0 V tolerant | 3.3 V / 5.0 V tolerant |
Key Differentiators
- Configuration immutability (vs Modern SRAM FPGAs (e.g., Artix-class))
- Deterministic fixed routing delays (vs A54SX16P-2PQG208I (same die, faster grade))
- 5.0V-tolerant I/O at 3.3V supply (vs A54SX16-1PQG208I (non-P die))
- PCI integration in a single chip (vs Discrete PCI ASSP + glue logic)
Design Notes
The A54SX16P operates from a 3.3V supply with 5.0V-tolerant inputs, per the Microchip SX-P family data. Decouple VCC and VCCA with at least 0.1 uF ceramic capacitors per power pin pair placed within 2 mm of the package, plus bulk 10 uF at the board level. Antifuse FPGAs draw negligible configuration current at power-up, but simultaneous output switching on 175 I/O can cause ground bounce - use generous ground return paths in the PQFP thermal lead frame region and follow the SX family datasheet power guidelines.
The device is one-time-programmable: a single antifuse programming error permanently consumes the part. Complete worst-case timing closure and full functional simulation in the Libero/Designer flow at -1 grade limits before programming any unit. Do not mix dies in production programming sets; the A54SX16P (P-family) and A54SX16 (non-P) share footprints but differ electrically. Also confirm the I/O bank voltage assignments support your 5V-tolerant interface standard before releasing the PCB.
Use the PQG208 mechanical drawing in the official SX family datasheet for land-pattern geometry - 208-pin PQFP parts with 0.5 mm lead pitch require controlled solder-paste stencil apertures to prevent bridging. Pin-1 orientation is marked by the corner dot; maintain a keep-out of at least 2 mm around the package for rework access, since PQFP lead reflow repair is the most common field-failure recovery operation on legacy boards.
With 0.25 ns clock skew, the internal clock distribution supports tightly matched parallel outputs, but board-level signal integrity still dominates: keep 66 MHz PCI or fast parallel bus traces length-matched within 25 mm and reference an unbroken ground plane. Series-terminate 22-33 ohm resistors on outputs driving long lines into 5V-tolerant legacy inputs to control overshoot within the datasheet absolute maximum ratings.
Compliance Information
Compliance status was not stated in the retrieved distributor or manufacturer data; verify on the Microchip product page environmental section before export or RoHS-critical BOM use.
