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Equivalent & Substitute Parts Reference: SAMRH71F20C-00-SV
Part Overview
The SAMRH71F20C-00-SV by Microchip Technology is a 32-bit ARM® Cortex®-M7 microcontroller within the Embedded category. It features a program memory of 128KB FLASH and supports a range of peripherals and connectivity options, making it suitable for advanced embedded applications. This part is supplied as a wafer die and is rated for operation in extended temperature environments. The part status is listed as "Obsolete," indicating that it is no longer recommended for new designs or ongoing production. Therefore, identifying suitable substitute parts is required to maintain functionality and supply continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Technology |
| Core Processor | ARM® Cortex®-M7 |
| Core Size | 32-Bit |
| Speed | 100MHz |
| Program Memory Size | 128KB (128K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 1.125M x 8 |
| Connectivity | CANbus, Ethernet, FIFO, I2C, QSPI, SPI, UART/USART |
| Peripherals | DMA, LCD, POR, PWM, WDT |
| Number of I/O | 194 |
| Voltage - Supply (Vcc/Vdd) | 3V ~ 3.6V |
| Oscillator Type | External, Internal |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
| Supplier Device Package | Wafer |
| Package / Case | Die |
Substitute Part Grouping Explanation
Substitute parts are identified on the basis of matching all critical electrical and mechanical parameters. These strictly include core processor architecture and size, speed, memory specifications (both program and RAM), supported peripherals and connectivity features, I/O count, supply voltage, oscillator configuration, operating temperature range, mounting type, and package style. Only those parts meeting all these criteria are eligible for substitution.
Parameter Comparison
| Parameter | Main Part: SAMRH71F20C-00-SV | MFR Recommended Substitute: SAMRH71F20E-00-SV |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Core Processor | ARM® Cortex®-M7 | ARM® Cortex®-M7 |
| Core Size | 32-Bit | 32-Bit |
| Speed | 100MHz | 100MHz |
| Program Memory Size | 128KB (128K x 8) | 128KB (128K x 8) |
| Program Memory Type | FLASH | FLASH |
| RAM Size | 1.125M x 8 | 1.125M x 8 |
| Connectivity | CANbus, Ethernet, FIFO, I2C, QSPI, SPI, UART/USART | CANbus, Ethernet, FIFO, I2C, QSPI, SPI, UART/USART |
| Peripherals | DMA, LCD, POR, PWM, WDT | DMA, LCD, POR, PWM, WDT |
| Number of I/O | 194 | 194 |
| Voltage - Supply (Vcc/Vdd) | 3V ~ 3.6V | 3V ~ 3.6V |
| Oscillator Type | External, Internal | External, Internal |
| Operating Temperature | -55°C ~ 125°C (TA) | -55°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Supplier Device Package | Wafer | Wafer |
| Package / Case | Die | Die |
| Series | SAMRH71 | SAMRH71 |
| Part Status / Product Status | Obsolete | Active |
Engineering Selection Recommendations
The SAMRH71F20C-00-SV is listed as obsolete. The MFR recommended manufacturer part number, SAMRH71F20E-00-SV, is identified as active and matches all key parameters, including those pertaining to electrical, mechanical, and environmental characteristics. Both parts share identical specifications, package format, and functionality. No differences are present in compliance or form factor that affect direct substitution. SAMRH71F20E-00-SV also holds a REACH unaffected status as indicated.
Frequently Asked Questions (FAQ)
Q1: What are the principal criteria for substituting microcontrollers in the SAMRH71 series?
A1: Substitution requires exact matching of processor architecture, speed, memory sizes, I/O count, supply voltage, package style, peripherals, and operational temperature range.
Q2: Is SAMRH71F20E-00-SV a form-fit-function substitute for SAMRH71F20C-00-SV?
A2: Yes. Based strictly on the provided parameters, both parts are mechanically and electrically identical, including package and mounting type.
Q3: Are there any differences in environmental qualifications or supply voltage between these models?
A3: No. Both operate at 3V ~ 3.6V supply voltage and are rated for operating temperatures from -55°C to 125°C (TA).
Q4: Does the substitute part require changes in PCB layout or firmware?
A4: No changes are required, as mechanical and functional parameters, including package/case and number of I/Os, remain unchanged.
Q5: What is the significance of the part status difference?
A5: SAMRH71F20C-00-SV is obsolete, making the active SAMRH71F20E-00-SV the correct replacement for continued production or long-term support.
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