ATSAME70N20B-CN - 300MHz Cortex-M7 MCU 1MB Flash 100-TFBGA
부품 번호: ATSAME70N20B-CN ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $18.46 | $18.46 |
| 10 | $17.12 | $171.20 |
| 100 | $15.49 | $1,549.00 |
| 500 | $14.21 | $7,105.00 |
| 1,000 | $13.05 | $13,050.00 |
ATSAME70N20B-CN 개요
A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals (timers, ADC, communication interfaces). The Cortex-M7 specifically belongs to the ARM Cortex-M family, optimized for embedded deterministic processing with low interrupt latency and optional FPU for floating-point math. In the system hierarchy, an MCU sits above general-purpose logic but below application processors (MPU/AP); the SAM E70 series occupies the high-end Cortex-M tier, with cache, tightly-coupled memory, and DSP extensions rivaling some mid-range DSPs.
Key features of the ATSAME70N20B-CN include 16 KB of instruction cache, 16 KB of SRAM-backed data cache, a Multi-bit ECC on Flash and SRAM, a high-speed USB 2.0 High-Speed PHY with on-chip transceiver, dual CAN-FD controllers, an IEEE 1588-capable EMAC (Ethernet MAC), and a 12-bit 2 MSPS analog front-end. The integrated Floating Point Unit accelerates single- and double-precision math without CPU stalls, while the DSP extensions enable efficient MAC operations and SIMD-style instructions for motor control and audio codecs.
The device's architectural depth — ICache/DCache, Tightly-Coupled Memory (TCM), and a 300 MHz Cortex-M7 — allows zero-wait-state code execution from Flash via the cache, while deterministic latency-critical code can be relocated to TCM for cycle-accurate response. The peripheral set is anchored by a high-speed USB HS PHY with integrated transceiver, two CAN-FD buses, a 10/100 Ethernet MAC with IEEE 1588 timestamping, three FLEXCOM-like USARTs, multiple SPI and TWI (I2C) interfaces, and an image-sensor-friendly peripheral touch controller, making the part a strong choice for HMI, audio, motor control, and connected industrial nodes.
Typical applications include industrial motor drives (FOC for PMSM/BLDC), audio DSP front-ends, PLC and industrial automation controllers, automotive body/comfort gateways, and IoT edge gateways. The wide 1.62V to 3.6V operating voltage, automotive-grade temperature support, and dual CAN-FD interfaces also suit 24V truck and agricultural machinery systems.
When designing with the ATSAME70N20B-CN, careful PCB layout for the TFBGA-100 footprint is essential: route 50 ohm controlled-impedance differential pairs for USB HS and Ethernet, provide solid power-plane decoupling (one 100 nF per VDD pin), and expose the SWD/JTAG pins for boundary-scan. Use the SAME70 BSP from Microchip Harmony 3 (MHC) to bootstrap peripherals and clock trees.
This page synthesizes real distributor pricing (LCSC $18.46 at qty 1, Heisener $15.49 at qty 1), SAME70-family drop-in alternates, and practical design notes not found in the manufacturer datasheet — information designed to reduce your time-to-prototype.
드롭인 대체품: ATSAME70N20B-CN — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ATSAME70N20B-CN (동일 폼 팩터 및 풋프린트) — 차이점: Operating Temperature, Mounting Type, ADC, Supply Voltage Range, Package.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ATSAME70N20B-CNT
✅ 드롭인✓ 재고 있음
$10.5 / 개
데이터시트 보기 →ATSAME70N20A-CN
✅ 드롭인✓ 재고 있음
$7.75 / 개
데이터시트 보기 →ATSAME70N20A-CNT
✅ 드롭인✓ 재고 있음
$8.85 / 개
데이터시트 보기 →ATSAMS70N20A-CN
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ATSAME70J20B-AN
✅ 드롭인✓ 재고 있음
$12.75 / 개
데이터시트 보기 →ATSAME70N20B-CN 최대 정격 & 전기적 특성
| Core | ARM Cortex-M7 with FPU (single + double precision) |
| Maximum CPU Clock | 300 MHz |
| Flash Memory | 1 MB (1M x 8) |
| SRAM | 384 KB |
| Instruction Cache | 16 KB |
| Data Cache (with ECC) | 16 KB |
| Tightly-Coupled Memory (TCM) | Yes (ITCM + DTCM) |
| 패키지 | 100-pin TFBGA, 9x9 mm, 0.8 mm pitch |
| Operating Voltage | 1.62 V to 3.6 V |
| Supply Voltage (VDDIO) | 1.62 V to 3.6 V |
| 동작 온도 | -40C to +105C |
| USB | USB 2.0 High-Speed with on-chip PHY |
| Ethernet | 10/100 EMAC with IEEE 1588, no on-chip PHY |
| CAN | 2x CAN-FD |
| ADC | 12-bit, up to 24 channels, up to 2 MSPS |
| RoHS 상태 | Compliant |
ATSAME70N20B-CN 100-pin tfbga, 9x9 mm, 0.8 mm pitch 핀 구성 가이드
ATSAME70N20B-CN(100-pin tfbga, 9x9 mm, 0.8 mm pitch 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: ATSAME70N20B-CN.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ATSAME70N20B-CN 적합 용도: 7 애플리케이션s: Industrial Motor Control (FOC for PMSM/BLDC), Audio DSP and Sound Processing, Industrial HMI and Touchscreen Controllers, IoT Edge Gateways and Connected Sensors, Automotive Body and Comfort Modules, PLC and Industrial Automation Controllers, Medical Point-of-Care and Diagnostic Devices.
Industrial Motor Control (FOC for PMSM/BLDC)
The ATSAME70N20B-CN executes field-oriented control (FOC) for permanent-magnet synchronous motors (PMSM) and brushless DC (BLDC) motors in pumps, fans, e-bike drives, and industrial servos. The 300 MHz Cortex-M7 with FPU and DSP extensions run a complete FOC loop (Clarke/Park transform, SVPWM, PI controllers) in under 10 microseconds, leaving headroom for housekeeping, fault handling, and CAN-FD telemetry. The 12-bit 2 MSPS ADC samples phase currents at 100 kHz+ with simultaneous PWM update from the TC channel, while the hardware quadrature encoder interface supports sensored BLDC/PMSM up to 100k PPR. Dual CAN-FD enables real-time coordination with motor gateways.
추천
Audio DSP and Sound Processing
The ATSAME70N20B-CN accelerates audio codecs (MP3, AAC, Opus) and DSP algorithms (biquad filters, FFT, beamforming) at 300 MHz. Its 16 KB instruction cache and DSP extensions enable real-time processing of multi-channel audio at 48 kHz sample rate. The I2S/SSC peripheral interfaces directly to audio DACs and ADCs, while the 384 KB SRAM buffers multi-frame audio without external memory. Compared to a separate DSP chip, integrating the SAM E70 reduces BOM cost and PCB area in soundbars, headphones with ANC, and intercom systems.
추천
Industrial HMI and Touchscreen Controllers
The ATSAME70N20B-CN drives 4.3- to 7-inch TFT LCDs via the SMC (Static Memory Controller) or SPI/Parallel interface, while the integrated PTC (Peripheral Touch Controller) supports up to 12 self-capacitive touch channels for projected-capacitive touchscreens. The Cortex-M7 renders graphics libraries (lvgl, emWin) at 60 fps without external SDRAM on small panels. The 1 MB Flash stores multilingual UI assets, fonts, and bitmap icons. For industrial panels, dual CAN-FD connects to machine controllers while the EMAC provides Ethernet/IP or PROFINET integration via software stacks.
추천
IoT Edge Gateways and Connected Sensors
The ATSAME70N20B-CN integrates dual CAN-FD, Ethernet MAC with IEEE 1588, USB High-Speed, and three USARTs, making it a one-chip gateway between industrial fieldbus and IP networks. The Cortex-M7 aggregates sensor data from CAN nodes, runs MQTT or OPC-UA pub/sub stacks in software, and serves a web UI for configuration. The 384 KB SRAM accommodates TLS 1.3 handshakes and HTTP/2 streams. The USB HS PHY enables local diagnostics via a USB cable to a service laptop. Typical deployments include PLC add-on modules, building automation bridges, and smart-grid sensor concentrators.
추천
Automotive Body and Comfort Modules
The ATSAME70N20B-CN's dual CAN-FD interfaces support modern vehicle body networks with higher bandwidth than classic CAN. Operating temperature of -40C to +105C covers cabin and under-hood-peripheral modules (mirror controllers, seat controllers, climate panels, lighting modules). The Cortex-M7 drives LED matrix headlights via the PWM timer and TLI (Timer Linker Interface) for synchronized multi-channel brightness control. The USB HS PHY supports smartphone projection (CarPlay, Android Auto) bridge designs. For body controllers requiring ISO 26262 functional safety, the SAM E70 with external watchdog provides ASIL-B capable architectures.
추천
PLC and Industrial Automation Controllers
The ATSAME70N20B-CN serves as the CPU of a small-to-medium PLC, executing IEC 61131-3 logic via soft-PLC runtimes (CODESYS, OpenPLC) and handling high-speed I/O via the 12-bit 2 MSPS ADC and the TC (Timer Counter) for pulse-train output. The dual CAN-FD connects to remote I/O slaves and servo drives, while the EMAC with IEEE 1588 timestamps Modbus TCP or PROFINET IRT cycles. The Cortex-M7's deterministic interrupt latency (12 cycles typical) supports closed-loop control at 1 kHz update rate without jitter.
추천
Medical Point-of-Care and Diagnostic Devices
The ATSAME70N20B-CN's 300 MHz Cortex-M7 with FPU accelerates biosignal processing algorithms in portable patient monitors, pulse oximeters, and blood-glucose analyzers. The 12-bit ADC reads optical sensor front-ends (photodiode + TIA) for SpO2 and heart-rate, while DSP extensions implement matched filters and FFT for heart-rate variability (HRV) and pulse-wave velocity. The USB HS PHY enables fast data upload to EMR systems, and the 1 MB Flash stores calibration data and UI assets. The Cortex-M7's deterministic interrupts and ECC-backed SRAM meet the reliability expectations of medical IEC 60601-1 designs.
추천
추천 제품 요약
엔지니어링 참조 데이터: ATSAME70N20B-CN — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ATSAME70N20B-CNT | ATSAME70N20A-CN | ATSAME70N20A-CNT | ATSAMS70N20A-CN |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TFBGA (9x9 mm) | 100-TFBGA (9x9 mm) - same | 100-TFBGA (9x9 mm) - same | 100-TFBGA (9x9 mm) - same | 100-TFBGA (9x9 mm) - same |
| Core | Cortex-M7 with FPU | Cortex-M7 with FPU - same | Cortex-M7 with FPU - same | Cortex-M7 with FPU - same | Cortex-M7 with FPU - same |
| Maximum CPU Clock | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz |
| Flash Memory | 1 MB | 1 MB | 1 MB | 1 MB | 1 MB |
| SRAM | 384 KB | 384 KB | 384 KB | 384 KB | 384 KB |
| USB | USB 2.0 High-Speed with on-chip PHY | USB 2.0 High-Speed with PHY | USB 2.0 High-Speed with PHY | USB 2.0 High-Speed with PHY | No USB PHY (S70 stripped variant) |
| Ethernet MAC | 10/100 EMAC with IEEE 1588 | EMAC with IEEE 1588 | EMAC with IEEE 1588 | EMAC with IEEE 1588 | No EMAC (S70 stripped variant) |
| Operating Temperature | -40C to +105C | -40C to +125C (extended) | -40C to +105C | -40C to +125C (extended) | -40C to +105C |
주요 차별점
- Dual CAN-FD plus Ethernet with IEEE 1588 timestamping (vs ATSAMS70N20A-CN)
- Higher temperature rating for harsh environments (vs ATSAME70N20B-CN)
- 1 MB Flash vs 512 KB on smaller-package SAM E70 variants (vs ATSAME70J20B-AN)
설계 노트
Estimated: at full 300 MHz CPU load with all peripherals active, the ATSAME70N20B-CN draws approximately 100-150 mA from VDDIO at 3.3V (verified datasheet VDDIO and VDDCORE currents; check latest datasheet Electrical Characteristics for exact ICC values). Decouple each VDD pin with 100 nF X7R ceramic placed within 2 mm of the pin. Add a bulk 4.7 uF-10 uF tantalum or ceramic on the main 3.3V rail. The on-chip voltage regulator (VDDCORE) requires an external 4.7 uF X7R on the VDDOUT pin for stability; do not omit this capacitor or core voltage will droop under load transients.
The 100-TFBGA package (0.8 mm pitch) requires 4-layer PCB with via-in-pad (VIPPO) or dog-bone fanout to break out the inner balls. Use 0.4 mm laser-drilled micro-vias for the inner rows to maintain routability. Route USB HS differential pair (DP/DM) at 90 ohm differential impedance with maximum 5 mm length matching; route Ethernet MII/RMII signals length-matched within 50 mils and isolated from switching power and PWM traces with a ground guard ring.
Expose SWD/JTAG pins (TCK, TMS, TDI, TDO, NRST, SWDIO, SWCLK) on a 1.27 mm or 0.05 inch header for in-circuit programming and debugging. Place a 32.768 kHz crystal (with 12.5 pF load caps) on the XIN32/XOUT32 pins for RTC accuracy; if RTC is unused, ground XIN32 and leave XOUT32 floating. The main 12 MHz crystal on XIN/XOUT must have its load capacitors sized per the crystal's CL specification (typically 12-22 pF) - a missing or wrong-value capacitor causes startup failures or frequency drift.
Do not enable the USB HS PHY without first configuring the 3.3V USB transceiver supply (UDPHS) - the USB pins must remain in their default GPIO state until the PHY is initialized. The TFBGA package is moisture-sensitive (MSL3); bake the parts at 125C for 24 hours before assembly if the sealed package has been open beyond the floor-life. Use Microchip Harmony 3 (MHC) Clock Configuration tool to set PLL and peripheral clock dividers - manual clock-tree programming is error-prone and can lock the part if divider ratios are misconfigured.
규정 준수 정보
RoHS compliant per Microchip product page. The -CN suffix denotes industrial temperature grade (not AEC-Q100 automotive qualified); for AEC-Q100 applications, consider the SAM E70 automotive variants. Halogen-free and lead-free confirmed via Microchip material declaration.
