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Microchip Technology 951200602
- Part No.:
- 951200602
- Manufacturer:
- Microchip Technology
- Category:
- Microcontrollers
- Package:
- 256-QFP
- Datasheet:
-
951200602.pdf
- Description:
- IC MCU 32BIT 128MB FLASH 256QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,381
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Product details
Overview
951200602 from Microchip Technology is a radiation-hardened Arm Cortex-M7 microcontroller operating at 100 MHz, delivering 214 DMIPS and featuring 128 KB Flash with dual-bit ECC, 384 KB TCM SRAM with ECC, and hardened external memory controller supporting up to 2 GB with ECC. It serves as the central processing unit in high-reliability spaceborne systems requiring deterministic real-time control, fault-tolerant communication, and radiation resilience.
For engineers reviewing the 951200602 datasheet, 951200602 pinout, 951200602 application, or 951200602 equivalent, key selection criteria include TID tolerance (15 krad), QML-V qualification status, CQFP256 hermetic ceramic packaging, SpaceWire/MIL-STD-1553B dual-interface support, and deterministic execution via TCM-backed memory architecture.
Technical Context
The 951200602 implements a hardened Arm Cortex-M7 core with L1 instruction and data caches (16 KB each, ECC-protected), integrated ETM for instruction trace, and MPU with 16 configurable memory zones. Its memory subsystem includes three distinct SRAM domains-TCM, system, and multiport-with full ECC coverage and a hardened external memory controller supporting PROM, SRAM, and SDRAM with 8–48-bit data bus widths.
Communication is architected for space-grade redundancy: dual SpaceWire ports with embedded RMAP router, MIL-STD-1553B interface with redundant links, dual CAN FD controllers compliant with ISO 11898-1:2015, and GMAC with AVB/TSN time-stamping and PTP support. All peripherals are hardened against SEU and SEL events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M7 @ 100 MHz, 2.14 DMIPS/MHz, DSP/FPU, MPU (16 zones) |
| Flash Memory | 128 KB embedded with built-in ECC correcting up to two bits per word |
| SRAM | 384 KB TCM + 768 KB multiport SRAM, all with ECC protection |
| Radiation Tolerance | TID = 15 krad(Si); SEL immunity >62 MeV·cm²/mg; LET threshold >20 MeV·cm²/mg for SEU |
| Operating Temp | –55°C to +125°C, qualified per QML-V requirements |
| Package | CQFP256, hermetic ceramic, lead-free, space-grade sealing |
| Interfaces | Dual SpaceWire w/RMAP, MIL-STD-1553B, dual CAN FD, GMAC w/TSN, 10x FLEXCOM (UART/SPI/I²C) |
Pinout & Package
Ceramic Quad Flat Pack (CQFP) with 256 leads, hermetically sealed, lead-free finish, and space-qualified mechanical construction per MIL-STD-883. Pinout validated per Microchip SAMRH71F20C-7GB-SV datasheet DS00003161C and package drawing 00003161C-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDCORE | Core power supply | 3.0–3.6 V input for Cortex-M7 core and cache subsystems |
| VDDIO | I/O power supply | 3.0–3.6 V rail powering all digital I/O banks and peripheral interfaces |
| OSCIN/OSCOUT | Main oscillator input/output | 3–20 MHz crystal or resonator connection with failure detection circuitry |
| SWCLK/SWDIO | JTAG/SWD debug interface | ARM Serial Wire Debug pins for non-intrusive programming and trace |
| SPW0_RX/SPW0_TX | SpaceWire port 0 differential pair | LVDS-compatible SpaceWire link supporting 100–400 Mbps with RMAP protocol stack |
| M1553_D+/M1553_D− | MIL-STD-1553B data differential pair | Redundant bus interface compliant with MIL-STD-1553B, supporting BC/RT/MT modes |
Key Features
| Feature | Design Value |
|---|---|
| Hardened External Memory Controller (HEMC) | Supports PROM, SRAM, and SDRAM with 8–48-bit data bus and built-in ECC for up to 2 GB address space |
| Dual SpaceWire with Embedded Router | Two independent LVDS SpaceWire ports with on-chip RMAP support and routing capability for networked avionics topologies |
| Deterministic Execution Architecture | Tightly-Coupled Memory (TCM) enables zero-wait-state code/data access critical for hard real-time response |
| Radiation-Hardened Peripherals | All communication interfaces-including CAN FD, GMAC, and MIL-STD-1553B-are hardened against SEU and latch-up |
| Multi-PLL Clock System | Separate PLLs for system clock and peripheral clocks enable independent frequency scaling and low-jitter timing domains |
Applications
| Onboard Command & Data Handling (C&DH) | Satellite Attitude Control System (ACS) |
|---|---|
Use Scenario: Central command processor managing telemetry downlink, telecommand uplink, and health monitoring across distributed spacecraft subsystems. IC Role / Device Role / Timing Role: Primary MCU executing flight software with deterministic interrupt latency and ECC-protected memory for fault containment. Use Value: Enables autonomous fault recovery using watchdog timers, PFD, and NMIC while maintaining integrity under 15 krad TID exposure. | Use Scenario: Real-time closed-loop control of reaction wheels and magnetorquers using sensor fusion and PWM-driven motor drivers. IC Role / Device Role / Timing Role: High-precision timing source via RTT and RTC with Gregorian calendar, synchronized to ground UTC via PTP over GMAC. Use Value: Dual 16-bit PWM modules with dead-time generation and fault inputs ensure safe, radiation-resilient motor actuation in extreme thermal environments. |
| Deep-Space Communication Node | Radiation-Monitoring Payload Controller |
Use Scenario: Protocol translation and packet routing between SpaceWire-linked instruments and MIL-STD-1553B legacy subsystems aboard interplanetary probes. IC Role / Device Role / Timing Role: Embedded SpaceWire router with RMAP support and dual-port XDMAC enabling concurrent high-bandwidth data movement. Use Value: Eliminates need for external protocol bridges by integrating SpaceWire, 1553B, and CAN FD in one hardened die with shared memory coherency. | Use Scenario: Acquisition and preprocessing of single-event effect (SEE) data from onboard particle detectors and memory scrubbing logs. IC Role / Device Role / Timing Role: Integrity Check Monitor (SHA) and hardware-assisted memory scrubbing engine performing real-time error detection/correction. Use Value: Full SEU characterization (LET >20 MeV·cm²/mg) and on-the-fly ECC correction allow continuous operation without reset during solar particle events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar radiation-hardened microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAMRH71F20C-7GB-SV | Same core, memory, and peripheral set; QML-V qualified variant with identical CQFP256 package and radiation specs | Approved for U.S. DoD space programs requiring QML-V certification; same functional footprint as 951200602 | Select when formal QML-V documentation and test reports are contractually required |
| 951200601R | ESCC QPL RHA variant; identical radiation performance (15 krad TID, SEL immunity), same CQFP256 package, but ESCC-certified test flow | Targeted at European Space Agency (ESA) missions requiring ESCC 9000 qualification and RHA labeling | Select for ESA-funded missions where ESCC QPL compliance and RHA marking are mandatory |
Compared with 951200602, SAMRH71F20C-7GB-SV provides identical electrical and radiation behavior with formal QML-V certification, while 951200601R offers ESCC-aligned qualification and RHA labeling-both require no PCB redesign but differ in certification scope and regional program acceptance.
Availability
951200602 is available at Aetrix Electronics and suitable for satellite command & data handling, deep-space communication nodes, radiation-monitoring payloads, and attitude control systems requiring stable component supply across extended mission lifetimes.
Supply support for 951200602 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and FPGA solutions for aerospace, automotive, and industrial markets.
The SAMRH71 product line delivers radiation-hardened Arm-based MCUs optimized for deterministic real-time processing, fault-tolerant communication, and long-duration operation in geostationary, lunar, and deep-space environments.
FAQ
What radiation hardness specifications apply to the 951200602?
The 951200602 is characterized for Total Ionizing Dose (TID) tolerance of 15 krad(Si) with Flash memory active, single-event latchup (SEL) immunity exceeding 62 MeV·cm²/mg, and single-event upset (SEU) full characterization with LET threshold >20 MeV·cm²/mg. These values are verified per MIL-STD-883 TM1019.8 and ESCC 22900 standards, and apply to the entire die including core, memory, and peripherals.
Is the 951200602 pin-compatible with other SAMRH71 variants like SAMRH71F20C-7GB-SV?
Yes, the 951200602 shares identical CQFP256 pinout, electrical characteristics, and mechanical footprint with SAMRH71F20C-7GB-SV and 951200601R. All three use the same land pattern, thermal profile, and signal assignment per Microchip package drawing 00003161C-1, enabling direct substitution without PCB modification.
Does the 951200602 support SpaceWire routing functionality?
Yes, the 951200602 integrates an embedded SpaceWire router with RMAP support across its two SpaceWire ports. This allows packet forwarding, address translation, and network topology management without external logic-enabling scalable avionics networks in CubeSat and larger platforms.
What development tools are supported for firmware development on the 951200602?
The 951200602 is fully supported by Microchip's MPLAB Harmony v3 framework, IAR Embedded Workbench for Arm, Arm Keil MDK, and SEGGER Embedded Studio. It also supports FreeRTOS and RTEMS real-time operating systems, with HAL drivers, middleware stacks, and SpaceWire/RMAP protocol examples included in the official SDK.
What is the temperature range and qualification level of the 951200602?
The 951200602 operates across –55°C to +125°C and is qualified to ESCC QPL Level A (RHA) per ESCC 9000 specification. It meets QML-V requirements for U.S. DoD space programs and is rated for long-term deployment in geostationary orbit and deep-space missions without derating.
951200602 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 256-QFP
- Series:
- SAMRH71
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M7
- Core Size:
- 32-Bit
- Speed:
- 100MHz
- Connectivity:
- CANbus, Ethernet, FIFO, I2C, QSPI, SPI, UART/USART
- Peripherals:
- DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 194
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1.125M x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
951200602 FAQ
1.How can I place an order for 951200602 through Aetrix?
Please submit a Request for Quotation (RFQ) for 951200602 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 951200602 reliable?
The price and inventory of 951200602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 951200602 is usually 5 days.
3.What payment methods are accepted for 951200602?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 951200602 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 951200602?
951200602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 951200602 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 951200602?
For technical support, including 951200602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 951200602 requirements.
6.How does Aetrix verify that 951200602 is sourced from the original manufacturer or authorized distributors?
All 951200602 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 951200602 meets industry standards.
7.What is the process for return or replacement of 951200602?
All 951200602 units undergo pre-shipment inspection (PSI). If there is an issue with 951200602, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 951200602 part is unused and in its original packaging.
Return procedure for 951200602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
951200602 Tags
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