A54SX16-1CQ208M - 24K Gate FPGA, 175 I/O, 208-CQFP | Microsemi
MPN: A54SX16-1CQ208M β Active| Qty | Unit Price | Extended |
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| 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 A54SX16-1CQ208M 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:
A54SX16-CQ208M
β Drop-Inπ Reference alternative (not in catalog)
A54SX16-1CQ208E
β Drop-Inπ Reference alternative (not in catalog)
A54SX16-1CQG208M
β Drop-Inπ Reference alternative (not in catalog)
A54SX16-1CQ208
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
A54SX16-CQ208B
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$83.27 / Unit
View Datasheet βA54SX16-1CQ208M Maximum Ratings & Electrical Characteristics
| Series | SX (Actel SX) |
| System Gates | 24000 gates |
| Logic Cells | 924 cells |
| Logic Modules | 1452 modules |
| User I/O | 175 pins |
| Supply Voltage (Core) | 3 V to 3.6 V |
| Supply Voltage (I/O) | 4.75 V to 5.25 V |
| Maximum System Frequency | 240 MHz |
| Process Technology | 0.35 um CMOS |
| Programming Technology | Antifuse (one-time programmable) |
| Speed Grade | -1 |
| Package / Case | 208-BFCQFP with Tie Bar |
| Supplier Device Package | 208-CQFP (75x75 mm) |
| Mounting Type | Surface Mount |
| Packaging | Bulk |
| Program Memory Type | OTP (non-volatile) |
A54SX16-1CQ208M 208-cqfp (75x75 mm) Pin Configuration Guide
Complete pinout information for A54SX16-1CQ208M (208-cqfp (75x75 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 A54SX16-1CQ208M.
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
A54SX16-1CQ208M is suitable for 6 applications: Military and Aerospace Control Logic, Industrial Automation and Glue Logic, Bus Interface and Protocol Bridging, Legacy System Life Extension, Test and Measurement Instrumentation, Secure and Anti-Tamper Digital Systems.
Military and Aerospace Control Logic
The A54SX16-1CQ208M fits military and aerospace control and sequencer logic because its ceramic 208-BFCQFP package, M-flow screening, and non-volatile antifuse fabric withstand harsh environments without configuration-storage failures. At power-up the programmed function is immediately active - there is no configuration time and no bitstream to corrupt, a critical property for flight and mission systems. The 175 user I/Os at 5.0V (4.75V-5.25V) interface directly to legacy MIL-std style 5V buses and discretes, while the 3.3V core keeps dynamic power low. The 24,000-gate capacity implements state machines, bus control, and interface bridging in a single ceramic device, and antifuse design security prevents readback of the implemented function.
Recommended
Industrial Automation and Glue Logic
In industrial automation, the A54SX16-1CQ208M consolidates address decoders, bus transceivers' control logic, interrupt controllers, and handshaking state machines into one 24,000-gate device. Its 5V-tolerant I/O ring (4.75V-5.25V supply) connects directly to PLC backplanes and legacy 5V TTL equipment without level translation, which modern 3.3V FPGAs cannot do. The 240 MHz fabric ceiling and -1 speed grade provide ample timing margin for microsecond-scale control loops, while the antifuse fabric's deterministic, non-volatile configuration eliminates boot-time delay on production lines. The ceramic CQFP package offers robust solder joints and tie-bar mechanical retention for high-vibration factory environments, supporting long service intervals and low total cost of ownership.
Recommended
Bus Interface and Protocol Bridging
The A54SX16-1CQ208M is well suited to bus bridging duties such as translating between 5V TTL buses and 3.3V subsystem logic, because its dual-rail design (3.0V-3.6V core, 4.75V-5.25V I/O) supports both voltage domains natively. The 175 user I/Os provide enough pins to span address, data, and control fields of 16- and 32-bit legacy buses, while the 1,452 logic modules implement protocol conversion, FIFO control, and parity/ECC checking at wire speed up to 240 MHz. The antifuse fabric gives deterministic, fixed routing after programming, so bus timing analysis remains valid for the life of the program - an advantage over SRAM FPGAs whose timing is also fixed but whose configuration is vulnerable at power-up.
Recommended
Legacy System Life Extension
For programs sustaining legacy platforms, the A54SX16-1CQ208M directly replaces obsolete 5V-era programmable logic - PALs, GALs, and gate arrays - with a single reprogrammable-at-design-time device. Because its I/O operates at 4.75V-5.25V, it slots into existing 5V backplanes with no board redesign of level-shifting stages, and the 208-CQFP footprint matches the mechanical layout of heritage ceramic packaging. Microchip continues to publish the 54SX family datasheet and support Libero design tools, keeping the documentation chain intact for configuration-controlled programs. The antifuse configuration, once programmed, is permanent and secure, simplifying airworthiness and obsolescence-management documentation for life-extension contracts.
Recommended
Test and Measurement Instrumentation
Bench and rack instrumentation benefits from the A54SX16-1CQ208M as counter/timer logic, trigger engines, and measurement sequencer logic. The 240 MHz fabric capability supports fast event counting, while the deterministic antifuse routing guarantees repeatable propagation delay across units - important when instruments must meet calibrated timing specifications over production runs. The 175 I/Os connect front-panel discretes, ADC/DAC control lines, and system buses, mixing 5V and 3.3V signaling thanks to the dual supply architecture (3V-3.6V core, 4.75V-5.25V I/O). Because configuration is non-volatile, instruments power up ready to operate with no load delay, improving time-to-measurement and eliminating configuration storage reliability concerns in long-lifecycle lab equipment.
Recommended
Secure and Anti-Tamper Digital Systems
The A54SX16-1CQ208M suits secure and anti-tamper designs because the antifuse fabric stores configuration physically in programmed interconnects that cannot be read back, unlike SRAM FPGAs whose bitstream is exposed in external flash. For IP protection and function-hiding requirements, the implemented 24,000-gate design leaves no extractable configuration image, and the ceramic package complicates casual die-level probing. Dual-rail operation (3.3V core, 5.0V I/O) allows integration into mixed-voltage secure platforms, and the 175 user I/Os implement cryptographic helper logic, key control state machines, and tamper-response sequencing at up to 240 MHz. Non-volatile power-up behavior also removes the configuration window that attackers could otherwise exploit in SRAM-based systems.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16-1CQ208M β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16-CQ208M | A54SX16-1CQ208E | A54SX16-1CQG208M | A54SX16-1CQ208 | A54SX16-CQ208B |
|---|---|---|---|---|---|---|
| Package | 208-BFCQFP with Tie Bar | 208-BFCQFP with Tie Bar - same | 208-CQFP (75x75) - same | 208-CQFP (75x75) - same (green) | 208-BFCQFP with Tie Bar - same | 208-BFCQFP with Tie Bar - same |
| Brand | Microsemi (Microchip Technology) | Microsemi | Microchip Technology | Microchip Technology | Microsemi | Microsemi |
| System Gates | 24000 | 24000 | 16000 equivalent / 24000 system | 24000 | 24000 | 24000 |
| User I/O | 175 | 175 | 175 | 175 | 175 | 175 |
| Supply Voltage | 3V-3.6V / 4.75V-5.25V | 3V-3.6V / 4.75V-5.25V | 2.97V-3.63V / 4.5V-5.5V | 3V-3.6V / 4.75V-5.25V | 3V-3.6V / 4.75V-5.25V | 3V-3.6V / 4.75V-5.25V |
| Max Frequency | 240 MHz | [DATA_NEEDED] | 240 MHz | 240 MHz | 240 MHz | [DATA_NEEDED] |
| Screening Flow | M (military/industrial) | M flow | E (extended commercial) | M flow, green package | Standard flow | B ordering code |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
| Packaging (Shipping) | Bulk | Bulk | Tray | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Non-volatile antifuse configuration with zero boot time (vs SRAM-based FPGAs (e.g., Xilinx/Altera equivalents))
- Native 5V I/O operation (vs A54SX16A (SX-A family))
- Military-flow ceramic packaging (vs A54SX16-1CQ208E)
- Green plating option available (vs A54SX16-1CQG208M)
Design Notes
The A54SX16-1CQ208M requires two independent supply rails: 3.0V-3.6V for the core and 4.75V-5.25V for the I/O ring. Decouple each rail at every supply pin with 0.1 uF ceramic capacitors, plus bulk 10 uF per rail. Verify rail sequencing against the 54SX family datasheet - the dual-rail architecture of 0.35 um CMOS typically tolerates either order, but confirm the specific requirement before layout freeze. Estimated: antifuse FPGAs draw essentially zero static current (no configuration storage), so core power scales mainly with clock frequency and switching activity.
Antifuse devices are one-time programmable. Unlike SRAM FPGAs, you cannot erase and reprogram the A54SX16-1CQ208M - any design change after programming requires a new device. Complete full simulation, timing closure in the Designer/Libero flow, and hardware trial on a development vehicle before committing production devices. Also confirm the programming-bit file is regenerated for the exact ordering code, since die revisions can alter programming data.
The 208-CQFP (75x75 mm) ceramic package is large and heavy relative to plastic QFPs; use the tie-bar features for mechanical retention and consider corner adhesive or mechanical fastening under vibration per the manufacturer mechanical drawing. Land pattern should follow the datasheet CQFP footprint with adequate via fan-out for 175 signal pins. Keep 5V I/O traces separated from sensitive analog signals since the I/O ring swings full 5V CMOS levels with correspondingly higher edge-driven noise.
With 175 user I/Os switching at 5.0V levels, ground bounce and simultaneous-switching noise can be significant. Maximize the number of ground return pins assigned in your pinout during place-and-route, and stagger switching edges of large output groups where possible. Series terminate long 5V CMOS lines (typically 22-33 ohm estimated starting value) to control reflections on backplane-scale traces, and verify overshoot against datasheet absolute maximum ratings.
Compliance Information
Compliance status not stated in verified web data. The G-suffix variant (A54SX16-1CQG208M) is the green/lead-free option in the same package; confirm RoHS/REACH status per lot with the distributor.
