ATSAMV70Q20B-CB
ATSAMV70Q20B-CB - ARM Cortex-M7 300MHz MCU, 1MB Flash | Microchip
The Microchip Technology ATSAMV70Q20B-CB is an ARM Cortex-M7 microcontroller in the SAM V70 automotive family, featuring a single-core 32-bit processor with double-precision FPU running at up to 300 MHz, paired with 1 MB of Flash and 384 KB of SRAM in a 144-pin TFBGA (10x10 mm) package. It is qualified to the AEC-Q100 automotive reliability standard and integrates high-speed connectivity including Ethernet, CAN-FD, USB, and a 16-bit HSMCI SD-card interface. The device is targeted at automotive body, chassis, and gateway ECUs where deterministic real-time performance and a rich peripheral set are mandatory.
An ARM Cortex-M7 MCU is a 32-bit microcontroller built on the ARMv7-M architecture with a deeply pipelined core that delivers 2.14 CoreMark/MHz performance, a hardware double-precision floating-point unit, single-precision and double-precision SIMD instructions, and tightly-coupled memory for low-latency code and data access. It sits within the broader taxonomy of MCU -> embedded microcontroller -> SoC -> semiconductor. The Cortex-M7 family supersedes Cortex-M4 by adding cache controllers, branch prediction, and dual-issue capability, making it the highest-performance mainstream Cortex-M part before moving into Cortex-M33/M55 secure islands.
Key features include 1 MB (1M x 8) embedded Flash, 384 KB of multi-port SRAM, an MPU for memory protection, 16-bit SDRAM and 8/16-bit PSRAM external bus interface, an image sensor interface, an advanced 16-bit sigma-delta ADC with up to 24 channels, and a hardware crypto accelerator (TRNG, AES, SHA, RSA). The on-chip peripherals include 8-bit/16-bit image sensor interface (ISI), 12-bit DAC, 16-bit timers, PWM, I2S, I2C, SPI, UART/USART, and high-speed USB with integrated PHY. The 144-TFBGA package offers compact 10x10 mm footprint while exposing up to 88 GPIOs.
The architectural depth of SAM V70 lies in its Cortex-M7 core, which integrates an L1 instruction cache and branch target address cache to mitigate Flash wait-state penalties at 300 MHz, while the multi-port SRAM bank allows parallel DMA, Ethernet, and code execution without bus contention. The peripheral event system (PDMA, AFEC) and an interrupt controller with configurable priorities allow deterministic sub-microsecond response on critical tasks such as motor control or CAN-FD message handling. An integrated flexible 8- to 16-bit external bus interface (EBI) simplifies expansion to SDRAM or QSPI Flash.
Typical applications include automotive body controllers, HVAC panels, LED matrix drivers, industrial PLCs, motor-control front-ends, and IoT gateways that require Ethernet + CAN-FD co-existence. The device is also a strong fit for human-machine-interface (HMI) panels with TFT-LCD support, audio infotainment nodes, and CAN/LIN gateways. When designing with this part, designers should provision an external LDO or DC-DC for the 1.2V core rail and follow Microchip's Atmel Studio/Microchip Studio pin-mux configuration to avoid peripheral conflict on shared I/O lines. The part uses an automotive-grade process and is PPAP-capable.
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