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High-Speed QML Class V-Qualified FPGAs for Space


RTG4™ FPGAs integrate our fourth-generation Flash-based FPGA fabric and high-performance interfaces, such as Serialization/Deserialization (SerDes), on a single chip. They are resistant to radiation-induced configuration upsets in the harshest radiation environments, making them excellent options for use in Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geostationary Equatorial Orbit (GEO), Highly Elliptical Orbit (HEO) and deep-space flight applications. The RTG4 FPGA family offers up to 151,824 registers, which are hardened by design against radiation-induced Single-Event Upsets (SEUs), and up to 24 lanes of 3.125 Gbps SerDes.

RTG4 FPGA

Key Benefits


Radiation Tolerance  

  • Total ionizing dose (TID) > 100 krad
  • Configuration memory upsets immunity to LET > 103 MeV.cm2/mg
  • Single-Event Latch-up (SEL) immunity to LET > 103 MeV.cm2/mg
  • SEU-hardened registers eliminate the need for Triple-Module Redundancy (TMR)
  • SRAM has a built-in Error Detection and Correction (EDAC)
  • Global clocks and resets are hardened against Single-Event Transients (SETs)

Qualification for Space Flight

  • QML Class V qualification has been achieved for CG(G)A/LG(G)A 1657 and CQ(G)FP 352 ceramic packages
  • JEDEC qualification is completed for the FC/FCG 1657 sub-QML Ball Grid Array (BGA) plastic package, which is well suited for small satellite or constellation applications

Flight Heritage

  • The RTG4 FPGA has achieved flight heritage on Mission Extension Vehicles (MEV) 1, 2 and CAS-500
  • The RTG4 FPGA is currently baselined in many US and international programs

Featured Applications and Capabilities


RTG4 FPGAs offer a variety of qualification levels, screening flows and package options, which make them ideal for Class 1 space missions, New Space constellations, medical electronics, nuclear power plant control and many other applications. 

Radiation and Reliability

Radiation-Tolerant FPGAs

Sub-QML FPGAs                

RTG4 FPGA Product Family


Packages


  CG(G)1657/LG(G)1657 FC(G)1657 CQ(G)352
CG1657 (Ceramic Column Grid Array, Six Sigma Columns, Leaded)
CGG1657 (Ceramic Column Grid Array, Six Sigma Columns, Lead-Free)
LG1657 (Ceramic Column Grid Array, Six Sigma Columns, Leaded)
LGG1657 (Ceramic Column Grid Array, Six Sigma Columns, Lead-Free)
QML-V Qualified    
FCG1657 (Ball Grid Array Plastic Package, Lead-Free)
FC1657 (Ball Grid Array Plastic Package, Leaded)
  JEDEC Qualified  
CQ352 (Ceramic Quad Flat Pack, Leaded)
CQG352 (Ceramic Quad Flat Pack, Lead-Free)
    QML-V Qualified
Package Body Size 42.5 mm × 42.5 mm 42.5 mm × 42.5 mm 48 mm × 48 mm

Documentation


Search Documentation
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Document Category Title Date
User Guide
RTG4 FPGA System Controller User Guide
02 Feb 2023
User Guide
RTG4 FPGA Programming User Guide UG0602
12 Jun 2024
User Guide
UG0741: RTG4 FPGA I/O User Guide
08 Feb 2024
User Guide
RTG4 FPGA Fabric User Guide
20 Nov 2023
User Guide
RTG4 FPGA Clocking Resources
09 Feb 2024
User Guide
RTG4 FPGA High-Speed Serial Interfaces User Guide (Earlier UG0567)
07 Jun 2024
User Guide
UG0019: DLA Cross Reference User Guide
11 May 2004
User Guide
RTG4 FPGA DDR Memory Controller User Guide
11 Aug 2023
Application Notes
RTG4 FPGA Temperature Monitor using LM99 Temperature Sensor
23 Aug 2019
Application Notes
AN4947: Building Mi-V Processor Subsystem for RTG4 FPGA Application Note (Earlier AC490)
25 Jul 2024
Application Notes
AN4829: RTG4 Radiation Mitigated Clock and Reset Network Usage (Earlier AC463)
20 Dec 2024
Application Notes
AC474: RTG4 Metastability Characterization Report
18 Jun 2018
Application Notes
Simultaneous Switching Noise and Signal Integrity
23 Jan 2023
Application Notes
AN5558: Thermal Management and Mounting Methods for RTG4™ and RT PolarFire® FPGAs in Space Applications (Earlier AC486)
23 Jan 2025
Application Notes
Migrating RTG4 Designs from Plastic FC/FCG1657 Package to Ceramic CG/LG1657 Package
04 Feb 2022
Application Notes
AC459: LX7730 Interface Reference Design Using RTG4 FPGA Application Note
07 Feb 2022
RTG4 FPGA and LX7720 BLDC and Stepper Motor Demonstration
10 Feb 2022
Application Notes
AN4893: RTG4 CCC Dynamic Configuration Application Note (Earlier AC458)
20 Jul 2023
Application Notes
Addendum: RTG4 FPGAs Board Design and Layout Guidelines
08 Jun 2023
Application Notes
AN4751: Implementing SpaceWire Clock and Data Recovery in RTG4 FPGAs Application Note (Earlier AC444)
14 Feb 2025
Application Notes
AN4946: RTG4 FPGA SerDes EPCS Protocol Design Application Note (Earlier DG0624)
09 May 2023
Application Notes
AN4945: Low Power Design Application Note (Earlier TU0565)
08 Oct 2024
Application Notes
AN4891: Error Detection and Correction on RTG4 LSRAM Memory Application Note (Earlier DG0703)
19 May 2023
Application Notes
AN4948: RTG4 FPGA SerDes XAUI Application Note (Earlier DG0760)
19 May 2023
Application Notes
AN4972: Board Design and Layout Guidelines for RTG4 FPGAs (Earlier AC439)
08 Jun 2023
Application Notes
AN4892: RTG4 SRAM Initialization After Powerup Using μPROM Application Note (AC454)
26 Jun 2023
Application Notes
AN4944: RTG4 FPGA Fabric Application Note (Earlier LG0623)
05 Jul 2023
Application Notes
AN4894: Optimization Techniques to Improve DDR Throughput for RTG4 Devices Application Note (Earlier AC446)
15 Oct 2024
Application Notes
Optimization Techniques For RTG4 FPGA DDR Throughput Application Note
02 Apr 2024
Application Notes
AN4835: LiteFast IP on RTG4 Device Application Note (Earlier DG0729)
22 Aug 2016
Application Notes
AN4752: Interfacing RTG4 FPGA with External DDR3 Memory Application Note (Earlier DG0625)
11 Oct 2022
Application Notes
AN4753: RTG4 DSP FIR Filter Application Note (Earlier DG0630)
07 Oct 2024
Application Notes
RTG4 FPGA SRAM Initialization After Power-up Using µPROM
16 Apr 2024
Application Notes
Inferring RTG4 FPGA RAM Blocks - Synopsys Application Note
01 Aug 2016
Board Design Files
RTG4 MSIOD IO Banks IBIS Model
26 Apr 2015
Board Design Files
RTG4 DDRIO IO Banks IBIS Model
26 Apr 2015
Board Design Files
RTG4 MSIO IBIS Model
21 Apr 2015
RT4G_IBIS_AMI_Package
23 Jan 2023
Miscellaneous
RTG4_Power_Estimator
26 Sep 2022
Supporting Collateral
RTG4 FPGA Power Estimator User Guide
29 Jan 2015
Supporting Collateral
WP0191: Mitigation of Radiation Effects in RTG4 FPGAs White Paper
07 Apr 2015
Supporting Collateral
WP0194: Confidently Deploy RTG4 FPGAs in Space-based Systems - A Reliability Overview
27 May 2015
Board Design Files
RT4G150_ES-CG1657M BSDL
09 Dec 2019
Board Design Files
RT4G150 CG1657 BSDL
23 Sep 2015
Board Design Files
RT4G150L-FCG1657M BSDL
28 Apr 2020
Board Design Files
RT4G150-FCG1657M BSDL
28 Apr 2020
Board Design Files
RT4G150L-CG1657M BSDL
28 Apr 2020
Board Design Files
RT4G150L-CQ352M BSDL
28 Apr 2020
User Guide
RT4G150-CG1657M BSDL
09 Dec 2019
Board Design Files
RT4G150-CQ352M BSDL
28 Apr 2020
Board Design Files
RT4G150-CQ352
12 Mar 2019
Supporting Collateral
RT4G150-CG1657
22 Feb 2018
Prototyping for Space-Flight Designs with RT-PROTO FPGAs
30 Mar 2022
Data Sheets
RTG4™ FPGA Datasheet
29 Feb 2024
Packaging Specifications
RTG4 FPGA Pin Descriptions Datasheet
21 Sep 2023
Data Sheets
RTG4™ FPGA Technical Brief
17 Jan 2024
Application Notes
RTG4 FPGA PCIe Dataplane Demo Using Scatter-Gather DMA Controller Guide
16 Apr 2024
RTG4 PLL Temperature Rise Window Calculator
06 Apr 2022
Application Notes
RTG4 FPGA PCIe Data Plane Using Two Channel Fabric DMA Demo Guide
16 Apr 2024
Application Notes
RTG4 FPGA Power Measurement Tutorial
16 Apr 2024
Errata
RTG4 FPGA Errata
24 Jun 2024
CR0031: RTG4 FPGA PCIe Characterization Report
31 Jan 2022
TR0067: RTG4 FPGA SerDes Interoperability with TI TLK2711 Test Report
31 Jan 2022
CR0028: RTG4 FPGA XAUI Characterization Report
31 Jan 2022
Supporting Collateral
TR0030: RTG4 FPGA CoreJESD204BRX Interoperability Test Report
04 Apr 2017
Packaging Specifications
RTG4 FPGA: CG1657 LG1657 CB1657 Package Pin Assignment Table
25 Apr 2023
Package Drawings
RTG4 - FC1657 Package Pin Assignment Table
22 May 2024
Package Drawings
RTG4 CQ352 Package Pin Assignment Table
22 May 2024
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User Guide
02 Feb 2023
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12 Jun 2024
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User Guide
08 Feb 2024
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User Guide
20 Nov 2023
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09 Feb 2024
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User Guide
07 Jun 2024
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User Guide
11 May 2004
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User Guide
11 Aug 2023
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Application Notes
23 Aug 2019
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Application Notes
25 Jul 2024
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Application Notes
20 Dec 2024
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18 Jun 2018
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23 Jan 2023
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Application Notes
04 Feb 2022
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Application Notes
07 Feb 2022
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10 Feb 2022
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20 Jul 2023
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Application Notes
08 Jun 2023
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14 Feb 2025
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09 May 2023
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08 Oct 2024
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19 May 2023
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08 Jun 2023
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26 Jun 2023
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05 Jul 2023
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15 Oct 2024
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Application Notes
02 Apr 2024
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22 Aug 2016
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11 Oct 2022
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07 Oct 2024
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16 Apr 2024
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Application Notes
01 Aug 2016
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Board Design Files
26 Apr 2015
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Board Design Files
26 Apr 2015
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Board Design Files
21 Apr 2015
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23 Jan 2023
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Miscellaneous
26 Sep 2022
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Supporting Collateral
29 Jan 2015
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Supporting Collateral
07 Apr 2015
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Supporting Collateral
27 May 2015
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Board Design Files
09 Dec 2019
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Board Design Files
23 Sep 2015
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Board Design Files
28 Apr 2020
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Board Design Files
28 Apr 2020
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Board Design Files
28 Apr 2020
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Board Design Files
28 Apr 2020
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User Guide
09 Dec 2019
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Board Design Files
28 Apr 2020
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Board Design Files
12 Mar 2019
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Supporting Collateral
22 Feb 2018
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30 Mar 2022
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Data Sheets
29 Feb 2024
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Packaging Specifications
21 Sep 2023
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Data Sheets
17 Jan 2024
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Application Notes
16 Apr 2024
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06 Apr 2022
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Application Notes
16 Apr 2024
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Application Notes
16 Apr 2024
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Errata
24 Jun 2024
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31 Jan 2022
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31 Jan 2022
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31 Jan 2022
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Supporting Collateral
04 Apr 2017
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Packaging Specifications
25 Apr 2023
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Package Drawings
22 May 2024
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Package Drawings
22 May 2024

Application Notes


Title
Date
RTG4 FPGA Temperature Monitor using LM99 Temperature Sensor 23 Aug 2019 Link
AN4947: Building Mi-V Processor Subsystem for RTG4 FPGA Application Note (Earlier AC490) 25 Jul 2024 Link
AN4829: RTG4 Radiation Mitigated Clock and Reset Network Usage (Earlier AC463) 20 Dec 2024 Link
AC474: RTG4 Metastability Characterization Report 18 Jun 2018
Simultaneous Switching Noise and Signal Integrity 23 Jan 2023
AN5558: Thermal Management and Mounting Methods for RTG4™ and RT PolarFire® FPGAs in Space Applications (Earlier AC486) 23 Jan 2025 Link
Migrating RTG4 Designs from Plastic FC/FCG1657 Package to Ceramic CG/LG1657 Package 04 Feb 2022
AC459: LX7730 Interface Reference Design Using RTG4 FPGA Application Note 07 Feb 2022 Link
RTG4 FPGA and LX7720 BLDC and Stepper Motor Demonstration 10 Feb 2022
AN4893: RTG4 CCC Dynamic Configuration Application Note (Earlier AC458) 20 Jul 2023 Link
Addendum: RTG4 FPGAs Board Design and Layout Guidelines 08 Jun 2023
AN4751: Implementing SpaceWire Clock and Data Recovery in RTG4 FPGAs Application Note (Earlier AC444) 14 Feb 2025 Link
AN4946: RTG4 FPGA SerDes EPCS Protocol Design Application Note (Earlier DG0624) 09 May 2023 Link
AN4945: Low Power Design Application Note (Earlier TU0565) 08 Oct 2024 Link
AN4891: Error Detection and Correction on RTG4 LSRAM Memory Application Note (Earlier DG0703) 19 May 2023 Link
AN4948: RTG4 FPGA SerDes XAUI Application Note (Earlier DG0760) 19 May 2023 Link
AN4972: Board Design and Layout Guidelines for RTG4 FPGAs (Earlier AC439) 08 Jun 2023
AN4892: RTG4 SRAM Initialization After Powerup Using μPROM Application Note (AC454) 26 Jun 2023 Link
AN4944: RTG4 FPGA Fabric Application Note (Earlier LG0623) 05 Jul 2023 Link
AN4894: Optimization Techniques to Improve DDR Throughput for RTG4 Devices Application Note (Earlier AC446) 15 Oct 2024 Link
Optimization Techniques For RTG4 FPGA DDR Throughput Application Note 02 Apr 2024 Link
AN4835: LiteFast IP on RTG4 Device Application Note (Earlier DG0729) 22 Aug 2016 Link
AN4752: Interfacing RTG4 FPGA with External DDR3 Memory Application Note (Earlier DG0625) 11 Oct 2022 Link
AN4753: RTG4 DSP FIR Filter Application Note (Earlier DG0630) 07 Oct 2024 Link
RTG4 FPGA SRAM Initialization After Power-up Using µPROM 16 Apr 2024 Link
Inferring RTG4 FPGA RAM Blocks - Synopsys Application Note 01 Aug 2016 Link

Data Sheets


S-parameters Models


Title
Date
RT4G150-CQ352 12 Mar 2019
RT4G150-CG1657 22 Feb 2018

IBIS Models


Note: 

BSDL Models


Errata


Title
Date
RTG4 FPGA Errata 24 Jun 2024

RTG4 FPGAs integrate our fourth-generation Flash-based FPGA fabric high-performance serialization/deserialization (SerDes) transceivers on a single chip while maintaining resistance to radiation-induced configuration upsets in the harshest radiation environments, such as spaceflight (LEO, MEO, GEO, HEO, and deep space), high-altitude aviation, medical electronics and nuclear power plant control.

Kits and Hardware


RT FPGA Kits


RTG4™ FPGA Development Kits

The RTG4 FPGA Development Kit provides an evaluation and development platform for space applications such as data transmission, serial connectivity, bus interface and high-speed designs using RTG4 radiation-tolerant, high-density and high-performance FPGAs.

Programmers and Adapters


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