A54SX16-1TQG176 - SX FPGA 24K Gates 147 I/O TQFP-176 | Microchip
MPN: A54SX16-1TQG176 ✓ Active| Qty | Unit Price | Extended |
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Drop-in alternatives for A54SX16-1TQG176 — 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:
A54SX16-2TQG176
✅ Drop-In✓ In Stock
$339.14 / Unit
View Datasheet →A54SX16P-1TQG176
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX16P-TQG176
✅ Drop-In✓ In Stock
$47.2 / Unit
View Datasheet →A54SX16-1TQG176 Maximum Ratings & Electrical Characteristics
| Series | SX |
| Number of System Gates | 24000 |
| Number of I/O | 147 |
| Speed Grade | -1 |
| Supply Voltage (Core) | 3 V to 3.6 V |
| Supply Voltage (I/O) | 4.75 V to 5.25 V |
| Operating Supply Voltage | 3.3 V, 5 V |
| Operating Temperature | 0C to +70C (TA) |
| Package / Case | 176-LQFP |
| Supplier Device Package | 176-TQFP (24x24 mm) |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| Programmability Type | Antifuse (one-time programmable) |
| RoHS Status | ROHS3 Compliant |
| Lead Free | Yes |
| Product Status | Active |
| Manufacturer Lead Time | 10 weeks |
A54SX16-1TQG176 176-tqfp (24x24 mm) Pin Configuration Guide
Complete pinout information for A54SX16-1TQG176 (176-tqfp (24x24 mm) 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 A54SX16-1TQG176.
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
A54SX16-1TQG176 is suitable for 6 applications: Industrial Control Logic Integration, Legacy Design Continuation, Communication Interface Bridging, Configuration-Secure Systems, Test and Measurement Equipment, Single-Chip Function Consolidation.
Industrial Control Logic Integration
The A54SX16-1TQG176 consolidates glue logic, address decoders, state machines, and bus controllers that would otherwise occupy dozens of 74-series devices. Its 24,000 gates and 147 user I/O provide ample capacity for wide parallel control buses, while the 5V-compatible I/O rail (4.75V to 5.25V) lets it drive legacy TTL-level PLC and motor-control signals directly without level shifters. Because the antifuse fabric is one-time programmable, the configured logic is immune to configuration upsets from industrial noise and powers up instantly with the system - no boot delay. The commercial 0C to +70C range suits enclosed factory-floor controllers; for extended-temperature environments verify the appropriate industrial suffix variant.
Recommended
Legacy Design Continuation
For systems originally designed around SX-family or discrete TTL logic, the A54SX16-1TQG176 keeps existing PCB layouts valid: the TQFP-176 footprint and pinout remain unchanged across speed grades, so a -1 to -2 swap requires no board respin. The antifuse architecture reproduces the deterministic timing behavior legacy designs were characterized against, and the 3.3V core / 5V I/O dual-rail scheme matches the power tree of 1990s-era boards. Designers should hold verified programming bitstreams in controlled inventory since each physical part is programmed once. This makes the part a low-risk continuation path for medical, telecom, and test equipment still in production.
Recommended
Communication Interface Bridging
With 147 user I/O and the -1 speed grade, the device implements protocol bridges between parallel backplane interfaces, synchronous serial ports, and processor buses. The sea-of-modules fabric yields predictable interconnect delay, simplifying timing closure for multi-source-synchronous interfaces that modern coarse-grained FPGAs handle less transparently. The 5V I/O rail accepts and drives 5V TTL signals common on legacy telecom line cards, eliminating translator ICs. Because configuration is stored in antifuse silicon, the bridge is active within microseconds of power application - critical in systems where the data path must be up before a host CPU finishes booting.
Recommended
Configuration-Secure Systems
Antifuse FPGAs are inherently resistant to bitstream extraction: there is no external configuration flash to read and no readback path in the silicon, so design IP is physically protected. The A54SX16-1TQG176 suits applications where the logic function itself is proprietary - encryption key handling, licensing logic, or anti-counterfeiting checks at board level. Instant-on behavior removes the configuration window that SRAM FPGAs expose, and the 24K-gate capacity supports moderate security functions while the 3.3V core keeps power low. For defense-adjacent commercial work, note that Microchip's RTAX radiation-tolerant line shares this antifuse heritage.
Recommended
Test and Measurement Equipment
Bench instruments, ATE fixtures, and interface adapters benefit from the device's instant-start deterministic fabric and wide 147-pin I/O field for driving stimulus and capture across many channels simultaneously. The TQFP-176 24x24 mm package reflows on standard SMT lines, and the 5V-tolerant I/O connects directly to older instrument backplanes and TTL-level pod interfaces without translator networks. Because the antifuse configuration cannot be disturbed by electrostatic events or brownouts during testing, fixture logic remains stable across long automated runs. Reserve faster -2 grade parts for fixtures needing sub-10 ns critical paths.
Recommended
Single-Chip Function Consolidation
A core SX family use case is replacing multiple small PLDs, PALs, and SSI/MSI logic packages with one A54SX16-1TQG176, cutting BOM count, board area, and assembly cost. The 24,000-gate capacity absorbs dozens of combinational and sequential functions, and the 0.35 um-class antifuse process keeps static power low versus SRAM fabrics of similar capability. Inventory simplification is significant: one programmed SKU replaces many discrete line items. Because parts are one-time programmable, maintain a programming-house flow with revision-controlled bitstreams. The tray packaging suits both in-house programming and contract assembler feeders.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16-1TQG176 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16-2TQG176 | A54SX16P-1TQG176 | A54SX16P-TQG176 |
|---|---|---|---|---|
| Package | TQFP-176 (24x24 mm) | TQFP-176 - same | 176-LQFP - same | TQFP-176 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24000 | 24000 | 24000 (16K-gate class per family listing) | 24000 (16K-gate class per family listing) |
| User I/O | 147 | 147 | 147 | 147 |
| Speed Grade | -1 | -2 (faster) | -1 (P-variant) | standard (P-variant) |
| Supply Voltage | 3V-3.6V / 4.75V-5.25V | 3V-3.6V / 4.75V-5.25V | [DATA_NEEDED] | [DATA_NEEDED] |
| Operating Temperature | 0C to +70C | 0C to +70C | [DATA_NEEDED] | [DATA_NEEDED] |
| RoHS Status | ROHS3 Compliant | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Lowest-cost speed grade in the SX16 TQFP-176 family (vs A54SX16-2TQG176)
- 5V-tolerant I/O on the standard SX die (vs A54SX16P-1TQG176)
- Configuration security via antifuse storage (vs SRAM-based FPGAs (cross-package, for reference only))
Design Notes
The A54SX16-1TQG176 requires two supply rails: 3.3V nominal core (3V-3.6V) and 5V nominal I/O (4.75V-5.25V). Verify rail sequencing and ramp-rate requirements in the SX family datasheet before finalizing the power tree, and decouple each rail with local ceramic capacitors at the corner power/ground pin pairs. Because antifuse fabric draws very low static current, regulation accuracy - not thermal budget - is the dominant power-design concern on this device.
This is a one-time-programmable antifuse device: a logic bug found after programming cannot be patched, and a programmed device cannot be reused. Establish a revision-controlled bitstream repository, program a verification sample from each programming lot, and hold spare programmed devices in inventory given the 10-week manufacturer lead time. Never mix -1 and -2 speed grade parts in one assembly without re-running timing analysis, since worst-case timing differs between grades.
The 176-TQFP 24x24 mm land pattern follows the standard 0.5 mm-pitch QFP layout; use the CAD model referenced by Microchip USA for exact pad geometry. Keep unused I/O configured per the datasheet recommendation to avoid floating-node noise, route 5V-tolerant I/O banks away from sensitive analog traces, and provide solid ground return paths under high-switching I/O groups. TQFP leads are delicate - specify gentle-form handling at the contract assembler.
Compliance Information
ROHS3 Compliant and lead free per Microchip USA and Kynix distributor listings. REACH, halogen-free, and conflict-minerals status not stated in provided data.
