A54SX32-CQ208M - 48K-Gate SX FPGA, 174 I/O | Microchip Technology
MPN: A54SX32-CQ208M ✓ Active| Qty | Unit Price | Extended |
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| 500 | $0 | $0.00 |
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Drop-in alternatives for A54SX32-CQ208M — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX32-CQ208
✅ Drop-In✓ In Stock
$1545.45 / Unit
View Datasheet →A54SX32-1CQ208
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Contact for price
View Datasheet →A54SX32-1CQ208M
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$55.75 / Unit
View Datasheet →A54SX32-2CQ208
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
A54SX32-2CQ208M
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
A54SX32-CQ208M Maximum Ratings & Electrical Characteristics
| Family | SX (Actel antifuse FPGA) |
| System Gates | 48000 gates |
| Logic Modules / Cells | 2880 |
| User I/O | 174 |
| Core Supply Voltage | 3 V to 3.6 V |
| I/O Supply Voltage | 4.75 V to 5.25 V |
| Operating Temperature | -55C to +125C (TC) |
| Package | 208-BFCQFP with Tie Bar (CQFP-208) |
| Mounting Type | Surface Mount |
| Program Type | One-Time Programmable (antifuse) |
| Packaging | Bulk |
| RoHS Status | Non-compliant |
| Manufacturer Lead Time | 44 weeks |
| Product Status | Active |
| Architecture | Sea-of-modules |
A54SX32-CQ208M 208-bfcqfp with tie bar (cqfp-208) Pin Configuration Guide
Complete pinout information for A54SX32-CQ208M (208-bfcqfp with tie bar (cqfp-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 A54SX32-CQ208M.
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
A54SX32-CQ208M is suitable for 6 applications: Military Embedded Control, Industrial Bus Bridging and Glue Logic, High-Reliability Communications Equipment, Test and Measurement Instrumentation, Avionics and Aerospace Subsystems, Secure / Tamper-Resistant Logic.
Military Embedded Control
The A54SX32-CQ208M fits military embedded control applications because its -55C to +125C military rating and hermetic ceramic CQFP-208 package survive thermal cycling, humidity, and vibration far beyond commercial plastic parts. Its 48,000 antifuse gates integrate address decoding, bus control, and state machines that previously consumed dozens of discrete devices. Because antifuse configuration is one-time-programmable and non-volatile, the design powers up instantly with no configuration PROM and resists bitstream corruption - a key reliability attribute for defense platforms. Typical use places the FPGA between a processor bus and peripheral cards, using the 174 user I/O and 5V-compatible I/O ring to interface directly with legacy military TTL logic families.
Recommended
Industrial Bus Bridging and Glue Logic
In industrial automation systems, the A54SX32-CQ208M serves as single-chip glue logic and bus bridge between 5V legacy equipment and modern 3.3V controllers. The dual-supply architecture - 3V to 3.6V core with 4.75V to 5.25V I/O - lets the internal 48K-gate fabric run cool while driving 5V CMOS/TTL signal levels directly, eliminating level-shifter ICs. With 174 programmable I/O, one device can consolidate backplane arbitration, interrupt controllers, and address decoding, cutting board area and assembly cost. The non-volatile antifuse configuration means no boot-time configuration delay, so the FPGA is active within nanoseconds of power application - important for equipment requiring deterministic startup in factory settings.
Recommended
High-Reliability Communications Equipment
Telecom and datacom backplane controllers benefit from the A54SX32-CQ208M's predictable timing and configuration security. The sea-of-modules architecture gives deterministic, low-skew routing across the 2,880 logic modules, supporting synchronizer and framing functions at generation-class internal speeds. The 174 user I/O accommodate wide parallel data paths to line-card ASICs, and the antifuse fabric cannot be reprogrammed in-system, providing tamper resistance for network infrastructure handling sensitive data. In 5V backplane environments, the 4.75V to 5.25V I/O supply drives industry-standard signaling without external translators, while the 3.3V core limits dynamic power during continuous operation.
Recommended
Test and Measurement Instrumentation
Bench and automated test instruments use the A54SX32-CQ208M as a timing-controller and pattern-generator fabric. The fine-grained SX logic modules implement counter chains, trigger state machines, and handshaking logic with consistent module-to-module delays, simplifying timing closure for measurement-critical paths. The military temperature rating (-55C to +125C) and ceramic package also suit instruments used in environmental chambers where commercial parts drift out of specification. Designers typically dedicate part of the 174 I/O to 5V-level trigger and status lines compatible with legacy GPIB-era hardware, while the non-volatile antifuse configuration ensures the instrument is functional immediately at power-on without a configuration controller.
Recommended
Avionics and Aerospace Subsystems
For non-rad-hard avionics subsystems - actuator interface boards, sensor aggregation, and ARINC-style bus adapters - the A54SX32-CQ208M offers a proven antifuse fabric whose configuration is immune to power-supply sequencing errors and configuration-memory upset. Its hermetic 208-pin ceramic CQFP with tie bar provides the mechanical robustness and solderability demanded by aerospace assembly flows, and the -55C to +125C rating covers unpressurized equipment bays. The 48K-gate capacity implements protocol engines and redundancy-management logic, while one-time programming satisfies design-assurance requirements for configuration integrity over the aircraft life cycle. Where radiation tolerance is mandatory, Microchip's RTAX family is the designated successor path.
Recommended
Secure / Tamper-Resistant Logic
Applications requiring configuration confidentiality - anti-cloning, key-storage interfaces, and secure boot helpers - leverage the inherent security of antifuse technology. Unlike SRAM FPGAs, whose bitstream is stored in an external PROM and read at every power-up, the A54SX32-CQ208M's configuration is permanently written into on-chip antifuse elements and cannot be read back or intercepted during startup. The 48K gates implement authention state machines, bus encryption hooks, or board-identity logic, and the 174 I/O interface at 5V to legacy secure hardware. For programs that cannot accept external configuration memory as an attack surface, this OTP architecture remains a differentiating advantage over reprogrammable alternatives.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-CQ208M — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-CQ208 | A54SX32-1CQ208 | A54SX32-1CQ208M | A54SX32-2CQ208M |
|---|---|---|---|---|---|
| Package | 208-BFCQFP with Tie Bar (CQFP-208) | 208-BFCQFP with Tie Bar - same | 208-BFCQFP with Tie Bar - same | 208-BFCQFP with Tie Bar - same | 208-BFCQFP with Tie Bar - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 48000 gates | 48000 gates | 48000 gates | 48000 gates | 48000 gates |
| User I/O | 174 | 174 | 174 | 174 | 174 |
| Operating Temperature | -55C to +125C (TC) | [DATA_NEEDED] | [DATA_NEEDED] | -55C to +125C (M grade) | -55C to +125C (M grade) |
| Speed Grade | Standard | Standard | -1 (faster) | -1 (faster) | -2 (fastest) |
| Supply Voltage | 3V~3.6V core / 4.75V~5.25V I/O | 3V~3.6V / 4.75V~5.25V | 3V~3.6V / 4.75V~5.25V | 3V~3.6V / 4.75V~5.25V | 3V~3.6V / 4.75V~5.25V |
| RoHS Status | Non-compliant | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Military temperature range in hermetic ceramic package (vs A54SX32-PQ208)
- Lowest-cost same-footprint alternative for commercial builds (vs A54SX32-CQ208)
- Faster timing headroom without redesign (vs A54SX32-1CQ208M)
Design Notes
The A54SX32-CQ208M requires two supply rails: 3V to 3.6V for the core and 4.75V to 5.25V for the I/O ring. Decouple each rail with bulk capacitance plus 0.1uF ceramics at multiple package corners, following the power-supply recommendations in the Microchip 54SX family datasheet. Estimated: at a typical 50-100 mA core current and full I/O switching, total dissipation is modest, but I/O power scales with the number of simultaneously switching 5V outputs - compute Ci*V^2*f per pin in high-toggle designs to verify the thermal budget.
The ceramic CQFP-208 with tie bar requires careful land-pattern design: the tie bars are mechanical/ground tabs and should be soldered to board ground pads per the package drawing in the 54SX datasheet. Use ~0.5 mm pitch footprint geometry per JEDEC-style CQFP conventions, keep trace stubs short on the 174 user I/O to preserve signal integrity at speed, and provide generous via fan-out under the package for power distribution. Verify reflow/wave profiles are compatible with ceramic-body packages, which are less tolerant of steep thermal gradients than plastic QFPs.
Three pitfalls recur with this device: (1) it is one-time-programmable - the antifuse fabric cannot be reworked, so exhaust simulation and timing verification in Libero before programming every unit; (2) the RoHS non-compliant status blocks use in EU-market products - qualify a plastic SX family member if compliance is required; (3) the 44-week factory lead time means last-time-buy planning must start well before end-of-life announcements. Also confirm pin assignment legality per I/O bank in the datasheet pin tables before locking the PCB layout, since some I/O combinations are excluded.
Compliance Information
RoHS non-compliant per Microchip USA distributor listing. Series: SX. No AEC-Q100 data found in provided sources.
