Microchip Technology

RTAX2000S-1CQ256PROTO - 2M-Gate Rad-Tolerant FPGA Proto | Microchip

MPN: RTAX2000S-1CQ256PROTO ✓ Active
In Stock Ships in 1-3 business days
[DATA_NEEDED: core and I/O supply voltage] Vdss CQ256 ceramic quad package, 256 pins Package up to 540 kbits with optional EDAC Memory
From $1595 USD / Unit
MOQ: 1 |
Price updated: 2026-09-02
Volume Pricing
Qty Unit Price Extended
1 $1995 $1,995.00
2 $1895 $3,790.00
5 $1795 $8,975.00
10 $1695 $16,950.00
25 $1595 $39,875.00
ℹ️ All prices are in USD

Drop-in alternatives for RTAX2000S-1CQ256PROTO — 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:

RTAX2000SL-1CQ256PROTO

✅ Drop-In
Microchip Technology
📦 CQ256
2,000,000 · 21,504 · RTAX-S/SL Radiation-Tolerant FPGA · Axcelerator commercial architecture · Antifuse (One-Time Programmable) · 1 · CQ256 (256-pin ceramic quad flat package) · PROTO (prototype / engineering)

✓ In Stock

Contact for price

View Datasheet →

RTAX2000SL-1CQ256V

✅ Drop-In
Microchip Technology
📦 CQ256
2,000,000 (approx.) · 32,256 · 21,504 · 649 MHz · CMOS, antifuse (one-time programmable) · RTAX-S/SL Radiation-Tolerant FPGA · -1 · 256-pin Ceramic CQFP (CQ256)

✓ In Stock

Contact for price

View Datasheet →

RTAX2000S-1CQ256PROTO Maximum Ratings & Electrical Characteristics

Logic Blocks (CLBs) 21504
Equivalent System Gates 2000000
Additional ASIC Gates 250000
Embedded Memory up to 540 kbits with optional EDAC
Technology Antifuse (nonvolatile, OTP), CMOS
SEU Rate less than 1E-10 errors per bit-day (family spec)
Total Ionizing Dose (Functional) 300 krad
Total Ionizing Dose (Parametric) 200 krad
Package CQ256 ceramic quad package, 256 pins
Mounting Type Surface Mount
Logic Family CMOS
Maximum User I/Os (family) up to 684 (density dependent)
Architecture Base Axcelerator compatible fabric
Configuration Live at power-up, no external boot device
Product Grade PROTO - engineering prototyping unit

RTAX2000S-1CQ256PROTO cq256 ceramic quad package, 256 pins Pin Configuration Guide

Complete pinout information for RTAX2000S-1CQ256PROTO (cq256 ceramic quad package, 256 pins 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.

cq256 ceramic quad package, 256 pins package pinout diagram for RTAX2000S-1CQ256PROTO

No detailed pinout data available for RTAX2000S-1CQ256PROTO.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for RTAX2000S-1CQ256PROTO Drain-to-Source Voltage (Vds) Drain Current (Id)

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

RTAX2000S-1CQ256PROTO is suitable for 6 applications: Satellite Payload Data Processing, Spacecraft Attitude Control and Avionics, Deep-Space Mission Electronics, Defense and High-Reliability Ground Systems, FPGA Design Verification and Emulation, Telemetry, Tracking and Command (TT&C) Units.

🛰️

Satellite Payload Data Processing

The RTAX2000S-1CQ256PROTO is used during the development of satellite payload processing boards, where its 2,000,000 equivalent gates and 21,504 CLBs provide enough capacity for image preprocessing, packet formatting, and high-rate data pipelines. The antifuse fabric is live at power-up, eliminating configuration-boot vulnerabilities on orbit. In the prototyping phase, engineers validate RTL, pin assignments, and I/O timing on the CQ256 footprint before programming flight antifuse devices, de-risking the transition to screened RTAX2000S/SL V-suffix parts and avoiding costly scrappage of one-time-programmable flight units.

✈️

Spacecraft Attitude Control and Avionics

Attitude determination and control electronics require deterministic, SEU-tolerant logic. The RTAX2000S fabric features SEU-hardened registers, reducing the triple-module redundancy overhead needed in SRAM FPGAs, with family SEU rates below 1E-10 errors per bit-day. The RTAX2000S-1CQ256PROTO lets control-loop designers validate star-tracker and gyro interfaces against real CQ256 I/O electrical behavior. Its 540 kbits of embedded SRAM with optional EDAC buffers sensor data, and segmentable clock resources support redundant timing domains common in fault-tolerant avionics architectures.

🔬

Deep-Space Mission Electronics

For missions beyond low Earth orbit, cumulative ionizing dose is severe; the RTAX2000S family is specified at 300 krad functional and 200 krad parametric total dose, per the Microchip RTAX-S/SL datasheet. During instrument development, the RTAX2000S-1CQ256PROTO allows teams to run radiation-test campaigns and design freeze validation on representative hardware. The nonvolatile antifuse technology stores configuration in the interconnect itself, immune to configuration-memory upsets - a structural advantage over SRAM FPGAs in deep-space environments where reconfiguration opportunities are limited.

🏭

Defense and High-Reliability Ground Systems

High-reliability defense electronics, missile guidance consoles, and ground stations reuse RTAX2000S designs where configuration integrity and power-up immediacy matter. The RTAX2000S-1CQ256PROTO supports laboratory validation on the same CQ256 footprint used in production boards. Because the fabric is library-compatible with commercial Axcelerator devices, teams can port proven commercial IP, but application note AC170 warns internal timing differs significantly - making PROTO-unit timing verification essential. The 250,000 additional ASIC gates accommodate custom hard-block equivalent functions in the design.

🖥️

FPGA Design Verification and Emulation

Verification teams pair the RTAX2000S-1CQ256PROTO with the Aldec ACT-H3Ki-CQ256 adaptor, which mounts in the RTAX footprint and uses flash-based ProASIC3E technology for unlimited reprogramming. The workflow iterates RTL on the flash adaptor, then programs the PROTO antifuse device to validate one-time-programmable behavior, package parasitics, and final timing. This two-stage approach, documented in the Microchip-Aldec prototyping collaboration, dramatically reduces risk before committing flight parts, since each antifuse device supports exactly one programming cycle.

🌐

Telemetry, Tracking and Command (TT&C) Units

TT&C subsystems demand always-on logic that is functional the instant spacecraft power arrives; the RTAX2000S antifuse fabric is live at power-up with no external configuration device, a direct system-level benefit for command receivers that must respond during launch and early orbit. The RTAX2000S-1CQ256PROTO enables board bring-up of these units with representative silicon. With up to 684 user I/Os available at family level and the CQ256 footprint offering a balanced I/O count, the device interfaces decoders, UARTs, and CCSDS framing logic on a single chip.

What is the RTAX2000S-1CQ256PROTO?
The RTAX2000S-1CQ256PROTO is a prototyping device for the Microchip Technology (formerly Microsemi/Actel) RTAX2000S radiation-tolerant FPGA. It provides 21,504 CLBs and 2,000,000 equivalent system gates plus 250,000 ASIC gates in a 256-pin CQ256 ceramic package. Per Microchip, PROTO units let engineers validate RTAX-S designs before programming one-time-programmable antifuse flight devices.
What are the key specifications of RTAX2000S-1CQ256PROTO that engineers should know?
Key specifications: 21,504 configurable logic blocks, 2,000,000 equivalent system gates, 250,000 additional ASIC gates, antifuse CMOS technology that is live at power-up, up to 540 kbits embedded SRAM with optional EDAC, and family radiation tolerance of 300 krad functional / 200 krad parametric total dose with SEU below 1E-10 errors per bit-day. According to the Microchip RTAX-S/SL datasheet (ds2169), the RTAX2000S belongs to a family offering up to 684 user I/Os.
Where can I buy RTAX2000S-1CQ256PROTO online?
The RTAX2000S-1CQ256PROTO is available through specialty distributors such as Microchip USA (microchipusa.com) and Jotrin Electronics, which list the part under the Microchip Technology FPGA category. Because PROTO and space-grade parts are low-volume items, general distributors like DigiKey often do not stock them; expect quote-based ordering and lead times measured in weeks. XAIPART also supports quote requests for this MPN as of 2026-09-02.
What is the price of RTAX2000S-1CQ256PROTO?
Pricing for RTAX2000S-1CQ256PROTO is quote-based at most distributors because it is a prototyping-grade aerospace component; typical single-unit pricing is in the low-thousands of USD range. Published distributor listings on Microchip USA and Jotrin do not display fixed unit prices, so request a formal quote. XAIPART lists indicative tier pricing as of 2026-09-02; verify current pricing before purchase since aerospace FPGA pricing changes with allocation.
What is the lead time for RTAX2000S-1CQ256PROTO?
Lead time for RTAX2000S-1CQ256PROTO is not published in distributor listings and is typically quote-dependent. Radiation-tolerant FPGA PROTO units are built in low volume, and industry lead times commonly range from several weeks to several months depending on stock. Confirm availability with Microchip USA, Jotrin, or XAIPART before scheduling your design validation milestone, and consider ordering flight-suffix devices in parallel given long aerospace build cycles.
What is the difference between RTAX2000S and RTAX2000SL?
The RTAX2000S and RTAX2000SL share the same logic fabric, 21,504 CLBs, 2,000,000 system gates, and CQ256 package option. According to the Microchip RTAX-S/SL datasheet (ds2169), the SL variant offers lower static power consumption in the same footprint, making it pin-compatible and largely drop-in replaceable. Flight-suffix options (V, B, E) differ in screening level. For new low-power designs, RTAX2000SL is generally preferred; the S variant remains valid where power budget is less constrained.
Can RTAX2000SL-1CQ256PROTO replace RTAX2000S-1CQ256PROTO?
Yes, in most prototyping workflows the RTAX2000SL-1CQ256PROTO can replace the RTAX2000S-1CQ256PROTO because both use the same CQ256 ceramic package footprint and identical logic density (21,504 CLBs, 2M gates). The SL variant has lower static power, per the Microchip RTAX-S/SL family datasheet. Verify timing and static power figures in your Libero SoC design, and confirm that your test procedures accept the SL static current signatures before substitution.
RTAX2000S-1CQ256PROTO vs RTAX2000SL-1CQ256V - which should I choose?
Choose the RTAX2000S-1CQ256PROTO for early design validation where a reprogrammable or prototyping workflow is acceptable, and choose the RTAX2000SL-1CQ256V for flight qualification and actual space-flight hardware. Both share the CQ256 footprint and 2M-gate density. The V-suffix device carries space-grade screening, while PROTO units are engineering parts. Using PROTO first reduces the risk of scrapping expensive antifuse flight devices during board bring-up, which is the intended workflow per Microchip application note AC170.
When should I choose RTAX2000S-1CQ256PROTO over an Aldec prototyping adaptor?
Choose the RTAX2000S-1CQ256PROTO when you need to exercise the actual antifuse device on your production-like board, including real I/O electrical characteristics and package-level effects. Choose the Aldec ACT-H3Ki-CQ256 flash-based ProASIC3E adaptor when you need unlimited reprogramming during iterative RTL debugging, since the antifuse PROTO device is still one-time programmable. Many teams use the Aldec adaptor for algorithm iteration, then the PROTO unit for final pre-flight validation, per the Microchip-Aldec prototyping collaboration documentation.
What is the best drop-in replacement for RTAX2000S-1CQ256PROTO?
The best drop-in replacement is the RTAX2000SL-1CQ256PROTO, which matches the CQ256 package footprint and identical 21,504-CLB / 2M-gate density while adding the SL low-power benefit. For flight hardware in the same footprint, the RTAX2000SL-1CQ256V is the screened equivalent. No cross-brand equivalents exist because RTAX-S antifuse radiation-tolerant FPGAs have no competing pin-compatible substitute; alternatives require PCB redesign.
Is there a cross-brand equivalent for RTAX2000S-1CQ256PROTO?
No cross-brand drop-in equivalent exists for the RTAX2000S-1CQ256PROTO. Microchip's RTAX-S/SL antifuse radiation-tolerant FPGAs occupy a unique niche: competing rad-hard programmable devices from other vendors use different fabrics, packages, and pinouts, so any substitution requires board redesign and requalification. The only same-footprint options are Microchip's own RTAX2000S/SL family variants, such as RTAX2000SL-1CQ256PROTO and RTAX2000SL-1CQ256V.
Where can I download the RTAX2000S datasheet PDF?
Download the RTAX-S/SL and RTAX-DSP Radiation-Tolerant FPGAs datasheet (document ds2169) directly from Microchip at ww1.microchip.com under the FPGA product documents folder; the verified link is https://ww1.microchip.com/downloads/aemdocuments/documents/fpga/ProductDocuments/DataSheets/rtaxs_ds2169_v18.pdf. This document covers the full family including the RTAX2000S, package options such as CQ256, ordering information, and radiation performance data. Application note AC170 for RTAX-S prototyping is available separately on the same Microchip document server.
Where can I find the RTAX2000S-1CQ256PROTO pinout?
The RTAX2000S-1CQ256PROTO pinout is provided in the RTAX-S/SL family datasheet (ds2169) package section for the CQ256 ceramic quad package, with pin tables mapping user I/O, power, and JTAG signals. XAIPART does not reproduce the full 256-pin table on this page; consult the datasheet package chapter or Microchip's Libero SoC pin-report tooling, which generates exact pin assignments from your design for the CQ256 package.
Is RTAX2000S-1CQ256PROTO suitable for space-flight hardware?
No - the PROTO suffix marks this as an engineering prototyping unit, not space-flight hardware. The underlying RTAX2000S fabric meets family radiation performance (300 krad functional / 200 krad parametric total dose, SEU below 1E-10 errors per bit-day on flight parts), but flight applications require the screened suffixes such as V or B variants. Use the PROTO device for design validation, then transition to RTAX2000SL-1CQ256V or equivalent flight screening for qualification and launch hardware.
How do I prototype an RTAX-S design using the RTAX2000S-1CQ256PROTO?
Per Microchip application note AC170, compile your design in Libero SoC for the RTAX2000S-1CQ256 target, then program the PROTO antifuse device or use the Aldec ACT-H3Ki-CQ256 flash-based adaptor for reprogrammable iteration. Because RTAX-S and Axcelerator are library-compatible but have significantly different internal timing, do not rely on commercial Axcelerator timing results; use RTAX-S timing models for flight-accuracy analysis. Program flight devices only after design freeze, since antifuse programming is one-time and irreversible.
Hey Google, what can replace a RTAX2000S-1CQ256PROTO?
The closest replacements are same-family Microchip parts: RTAX2000SL-1CQ256PROTO (drop-in, low-power SL variant, same CQ256 footprint) or RTAX2000SL-1CQ256V (flight-screened, same package). No other manufacturer offers a pin-compatible radiation-tolerant FPGA in the CQ256 package. For reprogrammable prototyping instead of antifuse OTP, the Aldec ACT-H3Ki-CQ256 adaptor board with ProASIC3E technology fits directly in the RTAX footprint without board changes.
Is RTAX2000S-1CQ256PROTO the same as RTAX2000SL-CQ256PROTO?
They are closely related but not identical: both are PROTO prototyping units in the CQ256 ceramic package with 21,504 CLBs and 2,000,000 system gates. The difference is the fabric variant - RTAX2000S is the standard RTAX-S device, while RTAX2000SL is the low-static-power SL variant from the same family datasheet (ds2169). They are pin-compatible and functionally interchangeable in most designs, but static current and timing figures differ, so verify your power budget and timing closure before swapping.

Engineering reference data for RTAX2000S-1CQ256PROTO — comparison, design guidance, and compliance information.

Selection Guide

Choose the RTAX2000S-1CQ256PROTO when your flight design targets the standard-power RTAX2000S and you need representative silicon on the real CQ256 board for timing, I/O, and bring-up validation before programming expensive antifuse flight units. Choose the RTAX2000SL-1CQ256PROTO instead if your flight target is the low-static-power SL variant - same footprint, same density, power profile matched to flight hardware. For actual space-flight qualification and launch hardware, select the screened RTAX2000SL-1CQ256V in the identical footprint. During early RTL iteration, pair the Aldec ACT-H3Ki-CQ256 flash-based adaptor (reprogrammable) with these PROTO devices: iterate on flash, freeze on antifuse. There is no cross-brand pin-compatible substitute - all alternatives require staying within the Microchip RTAX family.

Comparison with Alternatives

Parameter This Product RTAX2000SL-1CQ256PROTO RTAX2000SL-1CQ256V
Package CQ256 ceramic, 256 pins CQ256 - same footprint CQ256 - same footprint
Brand Microchip Technology Microchip Technology Microchip Technology
Logic Blocks (CLBs) 21504 21504 21504
Equivalent System Gates 2000000 2000000 2000000
Fabric Variant RTAX-S (standard power) RTAX-SL (low static power) RTAX-SL (low static power)
Product Grade PROTO (engineering prototyping) PROTO (engineering prototyping) V (flight-screened)
Technology Antifuse OTP, CMOS, live at power-up Antifuse OTP, CMOS, live at power-up Antifuse OTP, CMOS, live at power-up
Typical Use Design validation before flight programming Low-power design validation before flight programming Space-flight qualification and launch hardware

Key Differentiators

  • PROTO workflow de-risks OTP flight devices (vs RTAX2000SL-1CQ256V)
  • Same fabric and density as flight silicon (vs RTAX2000SL-1CQ256PROTO)
  • Live-at-power-up antifuse configuration (vs SRAM-based prototyping fabrics (ProASIC3E adaptor))

Design Notes

PROTO devices are engineering parts, not flight hardware. Program an antifuse RTAX device only after design freeze: antifuse technology is one-time programmable and a single mistake scraps the unit. Follow Microchip application note AC170 - although RTAX-S is library-compatible with Axcelerator, internal timing differs significantly, so never sign off timing using commercial Axcelerator models. Use RTAX-S timing models in Libero SoC and validate on the PROTO device before programming V-suffix flight parts.

If your spacecraft power budget is tight, evaluate the RTAX2000SL variant: the SL fabric provides the same 21,504-CLB density and CQ256 footprint with lower static power consumption, per the RTAX-S/SL family datasheet. Because S and SL are pin-compatible, you can prototype on either PROTO device and migrate to the SL flight part without PCB changes; update static-current analysis and thermal figures in your power budget when switching families.

Design the CQ256 land pattern once and reuse it across the RTAX2000S/SL PROTO and flight-suffix variants to preserve second-source flexibility within the family. Decouple all VCCA, VCCI, and VJTAG supplies with low-ESR ceramics placed close to the package; follow the RTAX-S/SL datasheet power-supply section for recommended capacitor values. Consider footprint compatibility with the Aldec ACT-H3Ki-CQ256 reprogrammable adaptor during layout so the flash-based prototyping path remains available.

Compliance Information

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
Unknown
Halogen Free
Unknown
Conflict Minerals
Unknown

Compliance data for this aerospace prototyping device was not stated in the provided web data; hermetic ceramic CQ packaging typically follows MIL-style screening rather than commercial RoHS documentation. Verify with Microchip.

Data verified on: 2026-09-02 — data verified and curated by XAIPART's component engineering team

Related Searches

RTAX2000S-1CQ256PROTO RTAX2000S-1CQ256PROTO datasheet Microchip RTAX2000S PROTO FPGA RTAX2000S-1CQ256PROTO price buy RTAX2000S vs RTAX2000SL difference RTAX2000SL-1CQ256PROTO drop-in replacement radiation tolerant FPGA 2 million gates CQ256 RTAX-S prototyping Aldec ACT-H3Ki-CQ256 where to buy RTAX2000S PROTO FPGA RTAX2000S-1CQ256PROTO lead time stock RTAX2000S pinout CQ256 package antifuse FPGA live at power-up satellite design

Related Components & Terms

Microchip Technology Microsemi Actel Corporation RTAX2000S-1CQ256PROTO RTAX2000SL-1CQ256PROTO RTAX2000SL-1CQ256V RTAX-S/SL radiation-tolerant FPGA field-programmable gate array antifuse technology SEU (single-event upset) total ionizing dose (TID) CQ256 ceramic package Axcelerator family Libero SoC Aldec ACT-H3Ki-CQ256 ProASIC3E application note AC170 EDAC triple-module redundancy (TMR) satellite payload processing space-flight avionics ds2169 datasheet
Quick Quote RFQ
Fill in complete details — our sales team will respond within 24 hours
Part Number Manufacturer Package QTY Target Price Extended
Total: $0.00 USD
Quote submitted!

We will respond to your email within 24 hours

1
RFQ Submitted
2
Quote Received
3
Order Placed
4
Payment
5
Shipped
6
Delivered
View RFQ Details