ATSAMV71N20B-CBT - 300MHz Cortex-M7 MCU 1MB Flash | Microchip
MPN: ATSAMV71N20B-CBT β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.64 | $14.64 |
| 10 | $13.9 | $139.00 |
| 100 | $12.75 | $1,275.00 |
| 500 | $11.6 | $5,800.00 |
| 1,000 | $10.45 | $10,450.00 |
Drop-in alternatives for ATSAMV71N20B-CBT 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:
ATSAMV71Q20B-CBT
β Drop-Inπ Reference alternative (not in catalog)
ATSAMV71Q19B-CBT
β Drop-Inπ Reference alternative (not in catalog)
ATSAMV71N19B-CBT
β Drop-Inπ Reference alternative (not in catalog)
ATSAME70N19B-CBT
β Drop-Inπ Reference alternative (not in catalog)
ATSAMV70N19B-CBT
β Drop-Inπ Reference alternative (not in catalog)
ATSAMV71N20B-CBT Maximum Ratings & Electrical Characteristics
| Core Processor | ARM Cortex-M7 with Double Precision FPU |
| Core Size | 32-bit single-core |
| Maximum Clock Frequency | 300 MHz |
| Flash Memory | 1 MB (1M x 8) |
| SRAM | 384 KB |
| Supply Voltage | 3 V to 3.6 V |
| I/O Count | 75 |
| Package | 100-TFBGA (9x9 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] |
| Automotive Qualification | AEC-Q100 |
| Manufacturing Standard | ISO-TS-16949 |
| Ethernet | 10/100 MAC with AVB support |
| CAN | Dual CAN interfaces |
| USB | High-Speed Device/Host |
| Programmability | MPLAB X IDE, MPLAB XC32 compiler |
| Series | SAM V71 ATSAMV71N |
| RoHS Status | ROHS compliant |
| Performance | 5.04 CoreMark/MHz |
ATSAMV71N20B-CBT 100-tfbga (9x9 mm) Pin Configuration Guide
Complete pinout information for ATSAMV71N20B-CBT (100-tfbga (9x9 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 ATSAMV71N20B-CBT.
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
ATSAMV71N20B-CBT is suitable for 6 applications: Automotive Gateway and Body Control, Industrial Motor Control, Ethernet AVB Audio Networking, Embedded Graphics HMI, Industrial Automation and Robotics, Data Logging and Telematics.
Automotive Gateway and Body Control
The ATSAMV71N20B-CBT fits automotive gateway nodes because it combines AEC-Q100 qualification, ISO-TS-16949 manufacturing, dual CAN interfaces, and a 300MHz Cortex-M7 core capable of routing high message rates. In a gateway, the MCU bridges CAN segments to Ethernet backbones using its 10/100 MAC, while the 1MB Flash stores protocol stacks and OTA updaters. Place the device on a 3V-3.6V rail with proper TVS protection on CAN lines for transients.
Recommended
Industrial Motor Control
For motor control, the 300MHz Cortex-M7 with double-precision FPU executes field-oriented control loops with ample margin, and its dual 2Msps ADCs sample phase currents with tight timing. The ATSAMV71N20B-CBT's TCM memory provides deterministic access for control code, while 1MB Flash holds complex state machines and diagnostics. Pair with gate drivers and isolate the control domain; the 5.04 CoreMark/MHz rating ensures headroom for predictive maintenance analytics on the same chip.
Recommended
Ethernet AVB Audio Networking
The SAM V71's hardware Ethernet MAC with AVB support and I2S peripherals make the ATSAMV71N20B-CBT a single-chip AVB endpoint for automotive and pro-audio networks. Time-sensitive networking streams are handled by MAC hardware offload, while the 300MHz core runs the AVDECC stack and DSP effects with the double-precision FPU. The 1MB Flash accommodates full AVB protocol stacks, reducing external memory needs and board cost versus two-chip solutions.
Recommended
Embedded Graphics HMI
The ATSAMV71N20B-CBT drives graphical HMIs using its parallel capture/peripheral DMA and SDRAM interface, with the 300MHz Cortex-M7 rendering UI layers in software. 384KB SRAM supports frame buffers for small displays, while 1MB Flash stores image assets and fonts. The device suits automotive cluster add-ons and industrial panels; use external SDRAM over the SDIO/SMC bus for larger resolutions, and leverage MPLAB Harmony graphics libraries for rapid development.
Recommended
Industrial Automation and Robotics
In automation nodes, the ATSAMV71N20B-CBT handles multi-protocol communication (dual CAN, multiple USART/SPI, Ethernet) concurrently thanks to extensive peripheral DMA channels. Its 5.04 CoreMark/MHz throughput supports real-time kinematics for small robots, while AEC-Q100 construction gives industrial-grade robustness. The 3V-3.6V supply integrates easily with standard industrial rails via a buck regulator, and MPLAB X IDE with XC32 accelerates firmware development and debugging.
Recommended
Data Logging and Telematics
The ATSAMV71N20B-CBT supports telematics and data-logging designs through its SDIO/SDMMC interface for high-speed card storage, dual CAN for vehicle bus capture, and Ethernet for backhaul. The 300MHz core with FPU compresses and timestamps sensor streams in real time, and 1MB Flash retains firmware plus configuration stores. Wide -40C to +125C automotive qualification ensures reliability in under-dash and engine-bay adjacent installations with appropriate thermal design.
Recommended
Recommended Products Summary
Engineering reference data for ATSAMV71N20B-CBT β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAMV71Q20B-CBT | ATSAMV71N19B-CBT | ATSAME70N19B-CBT |
|---|---|---|---|---|
| Package | 100-TFBGA (9x9) | 100-TFBGA (9x9) - same | 100-TFBGA (9x9) - same | 100-TFBGA (9x9) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Max Clock | Cortex-M7, 300 MHz | Cortex-M7, 300 MHz | Cortex-M7, 300 MHz | Cortex-M7, 300 MHz |
| Flash Memory | 1 MB | 2 MB | 512 KB | 512 KB |
| SRAM | 384 KB | 384 KB | 256 KB | 256 KB |
| Automotive Qualification | AEC-Q100, ISO-TS-16949 | AEC-Q100 | AEC-Q100 | Not automotive grade |
| Ethernet AVB | Yes | Yes | Yes | Yes |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| Approx. Unit Price | $14.64 (as of 2026-08-29) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- 1MB Flash in compact 9x9 BGA (vs ATSAMV71N19B-CBT)
- Cost-efficient entry point vs 2MB variant (vs ATSAMV71Q20B-CBT)
- Automotive AEC-Q100 qualification (vs ATSAME70N19B-CBT)
Design Notes
The ATSAMV71N20B-CBT requires a regulated 3V to 3.6V supply with separate decoupling on VDDIO, VDDCORE, and VDDUSB domains. Place 100nF ceramic capacitors at each supply ball plus bulk 10uF per domain. Use a buck regulator such as the TPS62130 for 5V-to-3.3V conversion; ensure the regulator can supply core current spikes during Flash programming at 300MHz operation.
The 100-TFBGA (9x9) 0.8mm-pitch BGA requires via-in-pad or dog-bone escape routing. Plan a minimum 4-layer stack with a solid ground plane on layer 2 for signal integrity of the 300MHz core and Ethernet RMII lines. Keep Ethernet magnetics and CAN transceivers close to their respective balls; length-match RMII clock/data traces within the PHY vendor spec.
Do not assume the SAME70 and SAMV71 are fully interchangeable in software - peripheral register maps and header files differ slightly despite near-identical architecture. Verify Flash wait-state configuration at 300MHz, and confirm the exact memory density variant (N19B/N20B/Q20B) in linker scripts before code migration between family members.
At full 300MHz operation, the Cortex-M7 dissipates modest heat, but BGA packages rely on board-level thermal paths. Add thermal vias under the package center connecting to ground planes to reduce junction-to-ambient resistance, particularly in enclosed automotive modules above 85C ambient.
Compliance Information
RoHS compliant per LCSC listing. AEC-Q100 qualified and manufactured to ISO-TS-16949 per Microchip SAM V71 product page.
