A54SX08-1TQG176 - 8K Gate Antifuse FPGA 176-TQFP | Microsemi
MPN: A54SX08-1TQG176 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.65 | $256.50 |
| 100 | $22.8 | $2,280.00 |
| 500 | $19.95 | $9,975.00 |
| 1,000 | $17.1 | $17,100.00 |
Drop-in alternatives for A54SX08-1TQG176 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX08-1TQG176I
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$39.3 / Unit
View Datasheet →A54SX08-TQG176
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$33.5 / Unit
View Datasheet →A54SX08-TQG176I
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$59.75 / Unit
View Datasheet →A54SX16-1TQG176
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View Datasheet →A54SX32-1TQG176
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$43.6 / Unit
View Datasheet →A54SX32-2TQG176
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View Datasheet →A54SX08-1TQG176 Maximum Ratings & Electrical Characteristics
| Family | SX (Actel/Microsemi antifuse FPGA) |
| System Gates | 12,000 |
| Typical Gates | 8,000 |
| Logic Cells | 512 |
| Logic Array Blocks (LABs) | 768 |
| User I/O | 128 |
| Maximum Toggle Rate | 280 MHz |
| Speed Grade | -1 |
| Process Technology | 0.35 um CMOS |
| Programming Technology | Antifuse (one-time programmable, non-volatile) |
| Supply Voltage (core/I/O) | 3 V ~ 3.6 V, 4.75 V ~ 5.25 V |
| Package | 176-TQFP (24x24 mm) / 176-LQFP |
| Mounting Type | Surface Mount |
| Number of Pins | 176 |
A54SX08-1TQG176 176-tqfp (24x24 mm) / 176-lqfp Pin Configuration Guide
Complete pinout information for A54SX08-1TQG176 (176-tqfp (24x24 mm) / 176-lqfp 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.
No detailed pinout data available for A54SX08-1TQG176.
Refer to the datasheet for full pin configuration.
Estimated pin count: 176 pins (digital package)
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
A54SX08-1TQG176 is suitable for 6 applications: Industrial Control and Automation, Aerospace and Defense Legacy Sustainment, Telecommunications Line-Card Glue Logic, Embedded System Bus Interfacing, Security and Surveillance Equipment, Test and Measurement Instrumentation.
Industrial Control and Automation
The A54SX08-1TQG176 fits industrial control boards that must bridge legacy 5 V TTL signal domains with 3.3 V logic, thanks to its dual supply support of 3.0-3.6 V and 4.75-5.25 V across 128 user I/O. Typical roles include PLC I/O sequencing, encoder interpolation, relay control state machines, and bus bridging at up to 280 MHz toggle rate. Its antifuse configuration is non-volatile and instant-on, so the FPGA is functional within microseconds of power application with no boot device - important in machinery where reset behavior must be deterministic. In a typical implementation, the SX08 sits between field connectors and a microcontroller, handling level translation, glitch filtering, and timing-critical handshake logic, while 0.35 um antifuse technology provides long-term configuration retention in electrically noisy factory environments.
Recommended
Aerospace and Defense Legacy Sustainment
The A54SX08-1TQG176 is widely used to sustain legacy aerospace and defense boards originally designed around the Actel SX family. Antifuse FPGAs are valued in these programs because their one-time-programmed configuration cannot be read back or disturbed by radiation-induced configuration upsets, and because the permanent interconnect adds design obsolescence resistance. The SX08's 8K gate / 12,000 system gate capacity accommodates address decoding, bus interface, telemetry formatting, and watchdog logic typical of heritage line-replaceable units. With the 0.35 um process and 280 MHz capability, timing margins are generous for these workloads. Sustainment engineers can drop the commercial 176-TQFP part or the A54SX08-1TQG176I industrial variant onto the existing footprint, preserving the qualified PCB and the original Designer/Libero design database for future respins.
Recommended
Telecommunications Line-Card Glue Logic
In telecom line cards, the A54SX08-1TQG176 consolidates the address decoding, interrupt control, backplane interface adaptation, and JTAG boundary support traditionally spread across many PAL/GAL devices. Its 128 user I/O and 768 LABs give enough routing freedom to replace multiple discrete logic packages, reducing board area and BOM count, while 280 MHz toggle capability comfortably covers backplane clock domains in the tens of MHz. The dual 3.3 V / 5 V supply operation is a direct advantage here: many legacy backplanes run 5 V signaling, while newer companion chipsets run 3.3 V, and one SX08 can interface both domains. Because antifuse configuration is non-volatile, line cards power up ready to accept traffic with no configuration controller, improving card hot-swap and reset behavior in racks.
Recommended
Embedded System Bus Interfacing
For embedded systems needing custom bus interfaces - proprietary parallel buses, memory-mapped expansion, or processor local bus adaptation - the A54SX08-1TQG176 provides a one-chip solution with 512 logic cells and 128 flexible I/O. Designers implement bus state machines, wait-state generators, byte-lane control, and address latching entirely in the antifuse fabric, with deterministic timing at -1 speed grade up to 280 MHz toggle. The instant-on, non-volatile configuration means the interface is live before the host processor completes reset, simplifying boot ordering and early fault signaling. Its 24x24 mm 176-TQFP package with 0.65 mm pin pitch is hand-solderable and reworkable for prototype and low-volume builds, and its dual 3.3 V / 5 V rails let it attach directly to 5 V microprocessor buses without external level shifters.
Recommended
Security and Surveillance Equipment
Surveillance and access-control hardware uses the A54SX08-1TQG176 for camera interface timing, sensor synchronization, tamper-detection logic, and relay/lock control. The antifuse fabric's permanent configuration supports security-sensitive deployments: the programmed design cannot be read back or modified in the field, protecting proprietary algorithms embedded in the logic. With 128 user I/O, one device can consolidate multiple sensor polling channels and actuator drivers, and the 280 MHz toggle capability handles video sync generation at standard frame rates. Its 5 V-compatible I/O eases integration with legacy alarm loops and optocoupled inputs common in installed security infrastructure. The commercial 176-TQFP part suits indoor equipment, while the A54SX08-1TQG176I industrial variant covers outdoor enclosures exposed to wider temperature extremes.
Recommended
Test and Measurement Instrumentation
Bench instruments, fixture controllers, and production test systems use the A54SX08-1TQG176 as a deterministic timing and control element: stimulus sequencers, handshaking arbiters, fixture ID decoding, and pass/fail datapath glue. The antifuse architecture gives jitter-free, configuration-independent timing because routing is hard-programmed at manufacture - no configuration-load variability between power cycles, which simplifies calibration across instrument fleets. Its 8K gate capacity and 280 MHz toggle rate cover timing generators for MHz-range test clocks, while 128 user I/O with 3.3 V / 5 V dual-supply operation connects to both modern 3.3 V digitizer electronics and 5 V legacy relay drivers. The 176-TQFP 24x24 mm footprint fits dense instrument mainboards, and the same footprint supports density migration to A54SX16 or A54SX32 variants if the test sequencer grows.
Recommended
Recommended Products Summary
Engineering reference data for A54SX08-1TQG176 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX08-1TQG176I | A54SX08-TQG176 | A54SX16-1TQG176 | A54SX32-1TQG176 |
|---|---|---|---|---|---|
| Package | 176-TQFP (24x24 mm) | 176-TQFP (24x24 mm) - same | 176-TQFP (24x24 mm) - same | 176-TQFP (24x24 mm) - same | 176-TQFP (24x24 mm) - same |
| Brand | Microsemi | Microsemi | Microsemi | Microsemi | Microsemi |
| Typical Gates | 8K (12,000 system gates) | 8K (12,000 system gates) | 8K (12,000 system gates) | [DATA_NEEDED] | [DATA_NEEDED] |
| Logic Cells | 512 | 512 | 512 | [DATA_NEEDED] | [DATA_NEEDED] |
| User I/O | 128 | 128 | 128 | 128 | 128 |
| Supply Voltage | 3 V ~ 3.6 V, 4.75 V ~ 5.25 V | 3 V ~ 3.6 V, 4.75 V ~ 5.25 V | 3 V ~ 3.6 V, 4.75 V ~ 5.25 V | 3 V ~ 3.6 V, 4.75 V ~ 5.25 V | 3 V ~ 3.6 V, 4.75 V ~ 5.25 V |
| Speed Grade | -1 | -1 | -1 | -1 | -1 |
| Temperature Grade | Commercial | Industrial | Commercial | Commercial | Commercial |
| Programming Technology | Antifuse (OTP, non-volatile) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
Key Differentiators
- Instant-on non-volatile configuration (vs A54SX16-1TQG176)
- Higher capacity in identical footprint (vs A54SX32-1TQG176)
- Extended temperature option available (vs A54SX08-1TQG176I)
Design Notes
The A54SX08-1TQG176 requires two supply rails: 3.3 V nominal (3.0-3.6 V) and 5 V nominal (4.75-5.25 V). Verify actual rail sequencing requirements against the SX family datasheet before applying power, and decouple each rail with a combination of bulk capacitance (10-47 uF) plus 0.1 uF ceramic capacitors placed at each supply pin pair. Estimated: with 128 I/O switching simultaneously at modest loads, I/O transient current can exceed 1 A peaks, so a low-impedance ground plane under the 24x24 mm TQFP is essential to limit ground bounce on 5 V I/O banks.
Antifuse devices are one-time programmable: never program the A54SX08-1TQG176 before timing analysis and functional simulation are complete, since a design bug consumes the physical device. Reserve your test-point and debug strategy up front, because in-system reprogramming is impossible - debugging typically requires programming multiple parts across iterations. Budget spare unprogrammed devices in your prototype BOM (recommend at least 3-5x the assembly quantity). Also confirm the ACT/Libero design database targets the exact A54SX08 die and 176-TQFP package before generating the programming fuse map.
The 176-TQFP (24x24 mm) uses a 0.65 mm pin pitch, which supports standard surface-mount assembly but is near the limit for hand soldering - use flux and drag-soldering technique or a stencil for prototype builds. Allocate a keep-out ring around the package for lead forming tolerance, and fan out I/O on both inner layers where possible to relieve routing congestion from 128 user I/O. Place 0.1 uF decoupling capacitors within 3 mm of supply pins. Per the SX family datasheet mechanical drawing, verify land pattern dimensions against your fabricator's capability before release.
With 5 V-tolerant I/O banks, maintain controlled edge rates on external buses: series-terminate (22-33 ohm) long lines driving heavy loads to reduce ringing, since 0.35 um output drivers are relatively fast relative to legacy TTL loads. Estimated: for traces longer than about 10 cm at 280 MHz internal toggle rates, treat traces as transmission lines and check flight time in timing closure. Keep 5 V and 3.3 V I/O banks grouped by bank assignment so ground return paths stay localized under each bank.
Compliance Information
The G suffix in TQG176 conventionally denotes green/RoHS plating in Microsemi nomenclature, but explicit compliance statements were not present in the verified data; confirm with manufacturer documentation.
