A54SX72A-1CQ208B - 108K-Gate Antifuse FPGA 208-CQFP | Microchip
MPN: A54SX72A-1CQ208B ✓ Active| Qty | Unit Price | Extended |
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Drop-in alternatives for A54SX72A-1CQ208B — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX72A-CQ208B
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View Datasheet →A54SX72A-1CQ208M
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View Datasheet →A54SX72A-CQ208M
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View Datasheet →A54SX72A-CQ208
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View Datasheet →A54SX72A-2CQ208
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
A54SX72A-1CQ208B Maximum Ratings & Electrical Characteristics
| Family | SX-A (Antifuse FPGA) |
| System Gates | 108000 gates |
| Logic Blocks (LABs/CLBs) | 6036 |
| User I/O | 171 |
| I/O Voltage Range | 2.25 V to 5.25 V |
| Speed Grade | -1 (fastest SX72A bin) |
| Maximum Toggle Rate (family) | up to 217 MHz |
| Global/Quadrant Clocks | CLKA, CLKB, QCLK quadrant clock networks |
| Process Technology | 0.22 um / 0.25 um CMOS antifuse |
| Program Type | One-Time Programmable (antifuse) |
| Operating Temperature | -55C to +125C (military B grade) |
| Package | 208-BFCQFP with tie bar (ceramic, 75x75 mm) |
| Mounting Type | Surface Mount |
| Package Hermeticity | Hermetic ceramic |
| Design Security | Configuration not readable (antifuse OTP) |
A54SX72A-1CQ208B hermetic ceramic Pin Configuration Guide
Complete pinout information for A54SX72A-1CQ208B (hermetic ceramic 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 A54SX72A-1CQ208B.
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
A54SX72A-1CQ208B is suitable for 6 applications: Avionics Bus Interface and Glue Logic, Satellite Payload Control Logic, Secure Single-Chip ASIC Prototyping, Military Ground Systems and Rugged Industrial Control, Test and Measurement Instrument Backplane Logic, Telecommunications Line-Card Control.
Avionics Bus Interface and Glue Logic
The A54SX72A-1CQ208B fits avionics glue logic because its 171 I/O pins accept 2.25V to 5.25V, interfacing directly with 5V-tolerant legacy avionics signals such as MIL-STD-1553 and ARINC companion logic without level shifters. The military B-grade -55C to +125C rating and hermetic 208-pin ceramic CQFP with tie bar match certified aircraft hardware flows. In the circuit it replaces dozens of discrete SSI/MSI devices, integrating address decode, bus buffering, and control-state machines in one 108K-gate antifuse chip. Because the fabric is one-time programmable and loads no configuration at power-up, it is operational the moment avionics power rails settle, and its configuration cannot be read back, an asset in security-conscious airframe programs. Source: Microchip SX-A datasheet.
Recommended
Satellite Payload Control Logic
For satellite payload control, the antifuse fabric of the A54SX72A-1CQ208B provides configuration immunity: there is no SRAM configuration memory to upset, and the programmed netlist is physically permanent, which suits long-duration orbital missions. The hermetic ceramic CQFP-208 protects the die against outgassing and moisture ingress concerns in vacuum, and B-grade screening supports qualification test flows. The 6036 LABs implement telemetry formatting, telecommand decoders, and payload sequencers, while CLKA/CLKB and quadrant clock networks distribute timing across the chip with low skew. At 0.22um CMOS antifuse technology the static power is low, helpful for power-limited spacecraft. For programs needing rad-hard qualification, Microchip's RT54SX72S shares this architecture as the rad-tolerant derivative, though it is not pin-identical to this terrestrial part.
Recommended
Secure Single-Chip ASIC Prototyping
The A54SX72A-1CQ208B serves ASIC prototyping and low-volume ASIC replacement because its 108,000 system gates and 6036 LABs absorb moderate RTL designs, while antifuse one-time programming means the final netlist is as immutable as a mask-programmed part. Unlike SRAM FPGAs, there is no bitstream to extract, so the design cannot be cloned by reading configuration - Microchip markets SX-A explicitly for design security. Prototype in the same ceramic CQFP-208 package used in production hardware, avoiding board respins between prototype and delivery. The 2.25V to 5.25V multi-voltage I/O eases integration with mixed-legacy test benches. Plan timing against the -1 speed grade models in Libero and reserve quadrant clocks for high-fanout control signals, since antifuse routing is less flexible than SRAM fabrics when pins are locked early.
Recommended
Military Ground Systems and Rugged Industrial Control
Ground-based military equipment benefits from the A54SX72A-1CQ208B's -55C to +125C B-grade rating and hermetic package, which tolerate thermal cycling, humidity, and contaminated environments that defeat plastic-packaged FPGAs. The instant-on antifuse configuration eliminates boot sequence dependencies in weapon-system power-up logic, and the 108K-gate capacity integrates controller interfaces, interlock logic, and test controllers on one chip. Its 171 I/O connect directly to 5V TTL backplanes common in legacy military platforms. System integrators use the quadrant clock (QCLK) resources for synchronized sampling across data-acquisition cards. Compared with a plastic A54SX72A-1FG484I, the CQFP-208 trades I/O count and cost for environmental robustness and screening traceability, the correct choice when reliability documentation outweighs density.
Recommended
Test and Measurement Instrument Backplane Logic
In test and measurement systems, the A54SX72A-1CQ208B implements backplane arbitration, trigger distribution, and instrument bus bridges. Family toggle rates up to 217 MHz and low-capacitance antifuse interconnect support deterministic timing across trigger trees, while CLKA/CLKB global and quadrant QCLK networks keep clock skew low between measurement channels. The multi-voltage I/O range (2.25V to 5.25V) lets one FPGA interface both modern 3.3V modules and 5V TTL instrumentation. One-time programming ensures the instrument's logic configuration is fixed and identical across a production run, simplifying calibration documentation. Because the device configures at power-up with zero load delay, instruments are ready the instant mains is applied - an advantage over SRAM FPGAs that spend tens of milliseconds loading bitstreams from external flash.
Recommended
Telecommunications Line-Card Control
Telecom line cards and legacy transmission equipment use the A54SX72A-1CQ208B for framing logic, alarm aggregation, and backplane handshaking. The 2.25V to 5.25V I/O range matches both 5V TTL backplanes and 3.3V/2.5V line-card silicon, letting one 108K-gate device consolidate interface logic that previously spanned multiple PLDs. The -1 speed grade provides timing headroom for backplane clock domains at family rates up to 217 MHz, and quadrant clocks isolate per-card timing regions to reduce routing congestion. Instant-on antifuse configuration removes link-recovery delay caused by FPGA configuration load, improving carrier-grade availability targets. Where hermeticity is unnecessary, the plastic A54SX72A-1PQ208I or 2PQG208I packages lower cost while keeping the same SX72A die and Libero design flow, easing migration between product tiers.
Recommended
Recommended Products Summary
Engineering reference data for A54SX72A-1CQ208B — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX72A-CQ208B | A54SX72A-1CQ208M | A54SX72A-CQ208M | A54SX72A-2CQ208 |
|---|---|---|---|---|---|
| Package | 208-CQFP ceramic, 75x75 mm, tie bar (B grade) | 208-CQFP ceramic - same | 208-CQFP ceramic - same | 208-CQFP ceramic - same | 208-CQFP ceramic - same |
| Brand | Microchip Technology (Actel/Microsemi legacy) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108000 | 108000 | 108000 | 108000 | 108000 |
| User I/O | 171 | 171 | 171 | 171 | 171 |
| Speed Grade | -1 (fastest SX72A bin) | Standard | -1 (same) | Standard | -2 (slower) |
| Screening / Temperature | B grade, -55C to +125C | B grade, -55C to +125C | M grade, -55C to +125C | M grade, -55C to +125C | Standard screening |
| I/O Voltage Range | 2.25 V to 5.25 V | 2.25 V to 5.25 V | 2.25 V to 5.25 V | 2.25 V to 5.25 V | 2.25 V to 5.25 V |
| Drop-in Replacement (no PCB change) | Reference device | Yes - per FindIC cross-reference | Yes - identical pinout/screening superset | Yes - identical pinout | Yes - verify timing margin |
Key Differentiators
- Fastest speed bin of the 72K-gate SX-A die in hermetic CQFP (vs A54SX72A-CQ208B)
- Configuration-readback security with instant-on startup (vs SRAM FPGAs (e.g. Xilinx/Intel))
- Upgradeable to deeper military screening without redesign (vs A54SX72A-1CQ208M)
- 5V-tolerant multi-voltage I/O (vs A54SX72A-1FG484I)
Design Notes
Antifuse devices are one-time programmable: a logic bug after programming means scrapping the device and the assembly cost of the ceramic CQFP. Complete gate-level simulation and static timing closure in Libero with the -1 speed grade models before committing production units. Prototype on the standard speed grade (A54SX72A-CQ208B) where possible and reserve -1 parts for timing-critical builds; this is a common cost-reduction pattern on military programs.
Use the CLKA, CLKB, and quadrant clock (QCLK) resources for high-fanout clock and control signals rather than general routing, as recommended in Microchip's 'Using A54SX72A and RT54SX72S Quadrant Clocks' application note. Lock I/O assignments early but leave routing slack: antifuse segmentation is less flexible than SRAM fabrics, and over-constraining pins can cause unroutable fits. Place 0.1uF ceramic decoupling capacitors at the CQFP power pins, one per supply pair.
Estimated: at 0.22um CMOS antifuse technology, static power is dominated by I/O pull-ups on the 2.25V-5.25V banks; unused outputs should be configured as inputs with defined levels to minimize dissipation. Compute worst-case ICC from the SX-A datasheet ICC tables at -55C and +125C corners for your design's toggle activity before setting the power budget - do not rely on typical activity assumptions for qualification reports.
Compliance Information
Military ceramic CQFP package; lead finish and RoHS/REACH status not stated in provided data. Verify with Microchip product compliance documentation - hermetic mil-grade packages often have exemptions.
