A54SX16P-1PQG208I - 24K Gate SX FPGA, 208-PQFP | Microchip
MPN: A54SX16P-1PQG208I β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
Drop-in alternatives for A54SX16P-1PQG208I β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
A54SX16P-1PQG208
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
A54SX16P-PQG208I
β Drop-Inπ Reference alternative (not in catalog)
A54SX16P-PQG208
β Drop-Inπ Reference alternative (not in catalog)
A54SX16P-2PQG208I
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$38.5 / Unit
View Datasheet βA54SX16-1PQG208I
β Drop-Inπ Reference alternative (not in catalog)
A54SX16P-1PQG208I Maximum Ratings & Electrical Characteristics
| Family | SX (54SX) Antifuse FPGA |
| System Gates | 24000 |
| Equivalent Gates | 16000 |
| Number of CLBs | 1452 |
| User I/O | 175 |
| Max Internal Performance | 320 MHz |
| Clock-to-Out (Pin-to-Pin) | 3.7 ns |
| Input Set-Up Time | 0.1 ns |
| Clock Skew | 0.25 ns |
| Supply Voltage | 3.3 V (3.0 V to 3.6 V) |
| I/O Tolerance | 5.0 V tolerant I/O (P version) |
| Speed Grade | -1 |
| Operating Temperature | -40C to +85C (industrial) |
| Programming Technology | Antifuse (one-time programmable) |
| Architecture | Sea-of-modules |
| PCI Support | 66 MHz PCI |
| Package | 208-BFQFP (PQFP-208) |
| Mounting Type | Surface Mount |
A54SX16P-1PQG208I 208-bfqfp (pqfp-208) Pin Configuration Guide
Complete pinout information for A54SX16P-1PQG208I (208-bfqfp (pqfp-208) 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-1PQG208I.
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-1PQG208I is suitable for 6 applications: 66 MHz PCI Bus Interface, Industrial Control and Automation, Aerospace and Defense Trusted Logic, Gate Array and Multi-CPLD Design Migration, Communications Line Cards and Backplane Logic, Test and Measurement Instrumentation.
66 MHz PCI Bus Interface
The SX family explicitly targets 66 MHz PCI, CPLD and FPGA integration as a single-chip solution. The A54SX16P-1PQG208I meets PCI timing with 3.7 ns pin-to-pin clock-to-out, 0.1 ns input setup, and 0.25 ns clock skew, allowing the entire PCI state machine and target/initiator logic to fit in one antifuse device with 100% pin locking. The 5.0V-tolerant I/O of the P version interfaces directly with 5V PCI signaling environments without external level shifting, reducing BOM cost. Because configuration is non-volatile antifuse, the PCI interface is active within microseconds of power-up - a requirement of some PCI specification timeout windows that SRAM FPGAs struggle to meet without a configuration PROM.
Recommended
Industrial Control and Automation
In factory automation, motor control sequencing, and PLC I/O subsystems, the A54SX16P-1PQG208I consolidates dispersed 22V10-class CPLDs and gate arrays into a single 24K-gate device, cutting board area and power consumption. The industrial -40C to +85C rating of the I-suffix part covers unconditioned control cabinets, while 3.3V operation with 5.0V-tolerant I/O bridges mixed 5V sensor/relay logic with modern 3.3V controllers. Antifuse one-time programming eliminates configuration corruption from noisy industrial power events, and 175 user I/O absorbs large parallel signal counts typical of backplane and field-wiring interfaces.
Recommended
Aerospace and Defense Trusted Logic
Actel antifuse FPGAs have a long heritage in defense electronics because the one-time-programmable fabric leaves no configuration bitstream in memory to corrupt under radiation or attack, and the metal-to-metal antifuse interconnect is inherently more SEU-tolerant than SRAM configuration cells. The A54SX16P-1PQG208I implements mission glue logic, bus bridges, and trusted interface functions at up to 320 MHz internal performance. For programs extending beyond the SX family EOL, Microchip's RTAX radiation-t hardened family (e.g., RTAX1000SL, RTAX2000S) continues this architecture lineage with the same design methodology in Libero.
Recommended
Gate Array and Multi-CPLD Design Migration
The SX sea-of-modules architecture was designed to simplify migration of gate-array prototypes and multi-chip CPLD clusters into one programmable device, dramatically reducing design cost, power, and time to market. With 100% resource utilization guaranteed at 100% pin locking, engineers can route late pin changes without re-spinning the board - a key advantage over hard gate arrays that require mask changes. The 16,000 usable gates and 1452 CLBs of the SX16P absorb counters, state machines, address decoders, and bus logic that previously occupied several CPLDs, shrinking inventory and improving reliability through reduced interconnect.
Recommended
Communications Line Cards and Backplane Logic
Telecom and datacom line cards historically used the SX16P for backplane address decoding, framing glue logic, and 5V-tolerant legacy bus interfacing. The 320 MHz internal performance and sub-ns setup times support high-throughput datapaths, while 175 user I/O handles the wide parallel buses of CompactPCI, VME, and proprietary backplanes. Instant-on antifuse configuration ensures the card participates in backplane arbitration immediately at power-up. Mixed 3.3V core / 5V-tolerant I/O removes level-shifter networks between legacy line-card ASICs and newer 3.3V processors.
Recommended
Test and Measurement Instrumentation
Bench instruments and ATE modules use the A54SX16P-1PQG208I for timing generators, trigger logic, and measurement sequencers where the 0.25 ns clock skew and 320 MHz fabric support precise event timing. Antifuse determinism gives repeatable timing behavior unit-to-unit - valuable in calibrated instruments - and the one-time-programmed configuration cannot be altered in the field, protecting instrument firmware integrity. Instant-on operation lets the instrument be measurement-ready within microseconds of power application, and the industrial temperature range supports rack-level thermal environments.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16P-1PQG208I β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16P-1PQG208 | A54SX16P-PQG208I | A54SX16P-PQG208 | A54SX16P-2PQG208I | A54SX16-1PQG208I |
|---|---|---|---|---|---|---|
| Package | 208-BFQFP (PQFP-208) | 208-BFQFP (PQFP-208) - same | 208-BFQFP (PQFP-208) - same | 208-BFQFP (PQFP-208) - same | 208-BFQFP (PQFP-208) - same | 208-BFQFP (PQFP-208) - same |
| Brand | Microchip Technology (Actel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24000 | 24000 | 24000 | 24000 | 24000 | 24000 |
| Speed Grade | -1 | -1 | Standard (baseline) | Standard (baseline) | -2 (faster) | -1 |
| Operating Temperature | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| 5.0V-Tolerant I/O | Yes (P version) | Yes | Yes | Yes | Yes | No (non-P version) |
| User I/O | 175 | 175 | 175 | 175 | 175 | 175 |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
| Lifecycle Status | EOL (PCN EOL0000505) | EOL (PCN EOL0000505) | EOL / last-time-buy | EOL / last-time-buy | EOL / last-time-buy | EOL / last-time-buy |
Key Differentiators
- 5.0V-tolerant I/O on 3.3V core (vs A54SX16-1PQG208I)
- Faster -1 speed grade timing (vs A54SX16P-PQG208I)
- Industrial temperature rating (vs A54SX16P-1PQG208)
- Honest trade-off: OTP antifuse technology (vs A54SX16P-2PQG208I)
Design Notes
The A54SX16P-1PQG208I is one-time programmable antifuse silicon - there is no erase or rework path. Complete full functional simulation, timing closure in Microchip Designer (formerly Actel Designer), and a board-level bring-up plan before submitting the device to programming. Verify your design against the -1 speed grade timing files at worst-case industrial corners (-40C to +85C, 3.0V), not just typical conditions. Last-minute pin changes are survivable thanks to 100% pin locking, but logic changes are not.
The device operates from a single 3.3V rail (3.0V to 3.6V). Decouple each of the VDD/VSS pin pairs on the 208-pin PQFP with 0.1 uF ceramic capacitors placed within 3 mm of the pins, plus bulk 10 uF at the board level. Note that antifuse FPGAs draw a small static programming-related leakage at power-up but no configuration current from an external PROM - total supply budgeting is simpler than SRAM FPGAs. Confirm per-pin current allocation using the SX family datasheet I/O DC characteristics before driving heavy external loads.
The 208-pin PQFP has 0.5 mm pitch gull-wing leads; use the JEDEC-style footprint from the Microchip package outline drawing and a no-clean or water-wash soldering profile compatible with PQFP lead coplanarity. Route 66 MHz PCI traces with controlled impedance (approx. 50-65 ohm single-ended) and length-match within 1.5 ns group delay per the PCI specification. Because the part is EOL, consider laying out a slightly larger footprint that also accepts a daughter-card adapter for a future flash-FPGA migration path.
Estimated: at 24K gates with moderate toggle rates, typical core power for an SX16P is on the order of hundreds of milliwatts; verify against the SX family power calculator using your actual toggle-rate data. The exposed 208-lead PQFP relies on PCB copper for heat spreading - a 2 oz copper ground plane provides adequate theta-JA for industrial ambient up to +85C at expected power levels. No heatsink is normally required; confirm with a thermal simulation for high-utilization, high-frequency designs.
Compliance Information
Compliance data not stated in retrieved distributor listings; historical Actel SX family parts exist in both standard and Pb-free variants. Request material declaration from Microchip before ordering for RoHS lines.
