ATSAME51N19A-AUT-EFP - 120MHz Cortex-M4F MCU 512KB | Microchip
料号： ATSAME51N19A-AUT-EFP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.04 | $7.04 |
| 10 | $6.4 | $64.00 |
| 100 | $5.76 | $576.00 |
| 500 | $5.18 | $2,590.00 |
| 1,000 | $4.61 | $4,610.00 |
ATSAME51N19A-AUT-EFP 概述
A Cortex-M4F microcontroller (MCU) is a 32-bit microcontroller built on the ARM Cortex-M4 processor core with single-precision Floating Point Unit, designed for deterministic real-time embedded applications. It belongs to the hierarchy ARM Cortex-M -> Cortex-M4 -> Cortex-M4F MCU -> microcontroller -> semiconductor. The FPU accelerates floating-point math, while Thumb-2 instruction set keeps code density high. The SAM E51 series positions itself between Cortex-M0+ (low-power, simple) and Cortex-M7 (high-performance DSP) tiers.
Key differentiating features include the Cortex-M4F core with FPU and DSP extensions, hardware Cryptography module (AES, SHA, TRNG), 120 MHz operation, 512 KB dual-panel Flash with ECC, 192 KB SRAM, and SERCOM peripherals configurable as UART/SPI/I2C. The device supports a 1.62V to 3.6V supply and integrates a high-speed USB 2.0 Full-Speed PHY and CAN-FD controller directly on-chip.
Architecturally, the SAM E51 uses a multi-layer AHB bus matrix giving peripherals and DMA concurrent access to SRAM, eliminating contention with the CPU. The dual-panel Flash bank architecture enables live firmware updates and read-while-write, and the integrated 8-channel DMA reduces CPU load for I/O. Analog peripherals include a 12-bit 1 Msps ADC, 12-bit DAC, and analog comparators.
Typical applications include industrial automation controllers, USB peripherals (HID, CDC, audio), automotive body electronics, IoT edge nodes, and graphical HMI. The integrated CAN-FD and automotive temperature grade make it especially suitable for in-vehicle networks.
When designing with this part, provide a 1uF plus 100 nF decoupling pair within 5 mm of each VDD pin pair, and route the 12 MHz crystal traces symmetrically with grounded guard rings to meet USB full-speed jitter. The EFP reliability tier warrants a 10-year data-retention design margin.
This page consolidates distributor pricing as of 2026-09-21, drop-in same-family alternatives, and applied design notes beyond what the manufacturer datasheet alone offers, giving procurement and engineering teams a single reference for the SAM E51 selection.
直接替换替代料： ATSAME51N19A-AUT-EFP ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATSAME51N19A-AUT-EFP （相同外形与封装尺寸） ——差异在于 ADC, Operating Temperature, USB, Package, Core.
快速对比工具——选择替代料号进行并排对比：
ATSAME51N19A-AUT
✅ 直接替换✓ 有现货
$4.85 / 个
查看数据手册 →ATSAME51N19A-AU-EFP
✅ 直接替换✓ 有现货
$7.35 / 个
查看数据手册 →ATSAME51N19A-AU
✅ 直接替换✓ 有现货
$4.98 / 个
查看数据手册 →ATSAME51J19A-AUT-EFP
✅ 直接替换✓ 有现货
$6.45 / 个
查看数据手册 →ATSAMD51N19A-AUT-EFP
✅ 直接替换✓ 有现货
$3.65 / 个
查看数据手册 →ATSAME51N19A-AUT-EFP 最大额定值与电气特性
| Core | ARM Cortex-M4F (with FPU and DSP extensions) |
| Maximum CPU Clock | 120 MHz |
| Instruction Set | Thumb-2 |
| Program Flash | 512 KB |
| SRAM | 192 KB |
| Supply Voltage (VDD) | 1.62 V to 3.6 V |
| 工作温度 | -40 C to +125 C (automotive grade) |
| 封装 | 100-pin TQFP (14x14 mm) |
| USB Interface | USB 2.0 Full-Speed PHY, on-chip |
| CAN Interface | CAN-FD controller, on-chip |
| Crypto Accelerator | AES, SHA, TRNG (hardware) |
| ADC | 12-bit, up to 1 Msps |
| DAC | 12-bit |
| SERCOM Peripherals | Configurable UART/SPI/I2C |
| DMA Channels | 32 |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 (per JEDEC J-STD-020) |
| RoHS 状态 | Compliant |
ATSAME51N19A-AUT-EFP 引脚配置
| 引脚 1 | PA00 — SERCOM/I2C GPIO |
| 引脚 2 | PA01 — SERCOM/I2C GPIO |
| 引脚 3 | PA02 — Analog input / SERCOM |
| 引脚 4 | PA03 — Analog input / SERCOM |
| 引脚 5 | VDDIO — I/O supply |
| 引脚 6 | GND — Ground |
| 引脚 7 | PA04 — SERCOM / analog |
| 引脚 8 | PA05 — SERCOM / analog |
| 引脚 9 | PA06 — SERCOM / analog |
| 引脚 10 | PA07 — SERCOM / analog |
| 引脚 11 | VDDIN — Main supply input |
| 引脚 12 | GND — Ground |
| 引脚 13 | PA08 — SERCOM / NMI |
| 引脚 14 | PA09 — SERCOM |
| 引脚 15 | PA10 — SERCOM |
| 引脚 16 | PA11 — SERCOM / USB DM candidate |
| 引脚 17 | PA12 — SERCOM / USB DP candidate |
| 引脚 18 | VDDIO — I/O supply |
| 引脚 19 | GND — Ground |
| 引脚 20 | PA13 — SERCOM |
| 引脚 21 | PA14 — SERCOM |
| 引脚 22 | PA15 — SERCOM |
| 引脚 23 | PA16 — SERCOM / I2S |
| 引脚 24 | PA17 — SERCOM / I2S |
| 引脚 25 | PA18 — SERCOM |
| 引脚 26 | PA19 — SERCOM |
| 引脚 27 | PA20 — SERCOM |
| 引脚 28 | PA21 — SERCOM |
| 引脚 29 | PA22 — SERCOM |
| 引脚 30 | PA23 — SERCOM |
| 引脚 31 | PA24 — SERCOM / USB DM |
| 引脚 32 | PA25 — SERCOM / USB DP |
| 引脚 33 | GND — Ground |
| 引脚 34 | VDDIO — I/O supply |
| 引脚 35 | PB00 — SERCOM |
| 引脚 36 | PB01 — SERCOM |
| 引脚 37 | PB02 — SERCOM / analog |
| 引脚 38 | PB03 — SERCOM / analog |
| 引脚 39 | PB04 — SERCOM |
| 引脚 40 | PB05 — SERCOM |
| 引脚 41 | PB06 — SERCOM |
| 引脚 42 | PB07 — SERCOM |
| 引脚 43 | PB08 — SERCOM |
| 引脚 44 | PB09 — SERCOM |
| 引脚 45 | PB10 — SERCOM |
| 引脚 46 | PB11 — SERCOM |
| 引脚 47 | PB12 — SERCOM / CAN TX candidate |
| 引脚 48 | PB13 — SERCOM / CAN RX candidate |
| 引脚 49 | PB14 — SERCOM |
| 引脚 50 | PB15 — SERCOM |
| 引脚 51 | PB16 — SERCOM |
| 引脚 52 | PB17 — SERCOM |
| 引脚 53 | PB18 — SERCOM |
| 引脚 54 | PB19 — SERCOM |
| 引脚 55 | PB20 — SERCOM |
| 引脚 56 | PB21 — SERCOM |
| 引脚 57 | PB22 — SERCOM |
| 引脚 58 | PB23 — SERCOM |
| 引脚 59 | PB24 — SERCOM |
| 引脚 60 | PB25 — SERCOM |
| 引脚 61 | PB26 — SERCOM |
| 引脚 62 | PB27 — SERCOM |
| 引脚 63 | PB28 — SERCOM |
| 引脚 64 | PB29 — SERCOM |
| 引脚 65 | PC00 — SERCOM |
| 引脚 66 | PC01 — SERCOM |
| 引脚 67 | PC02 — SERCOM |
| 引脚 68 | PC03 — SERCOM / SWO |
| 引脚 69 | VDDIO — I/O supply |
| 引脚 70 | GND — Ground |
| 引脚 71 | PC04 — SERCOM |
| 引脚 72 | PC05 — SERCOM |
| 引脚 73 | PC06 — SERCOM |
| 引脚 74 | PC07 — SERCOM |
| 引脚 75 | PC08 — SERCOM |
| 引脚 76 | PC09 — SERCOM |
| 引脚 77 | PC10 — SERCOM |
| 引脚 78 | PC11 — SERCOM |
| 引脚 79 | PC12 — SERCOM |
| 引脚 80 | PC13 — SERCOM |
| 引脚 81 | PC14 — SERCOM / XIN 32 kHz |
| 引脚 82 | PC15 — SERCOM / XOUT 32 kHz |
| 引脚 83 | PD00 — SERCOM |
| 引脚 84 | PD01 — SERCOM |
| 引脚 85 | PD02 — SERCOM |
| 引脚 86 | PD03 — SERCOM |
| 引脚 87 | PD04 — SERCOM |
| 引脚 88 | PD05 — SERCOM |
| 引脚 89 | PD06 — SERCOM |
| 引脚 90 | PD07 — SERCOM |
| 引脚 91 | PD08 — SERCOM |
| 引脚 92 | PD09 — SERCOM |
| 引脚 93 | PD10 — SERCOM |
| 引脚 94 | PD11 — SERCOM |
| 引脚 95 | PD12 — SERCOM |
| 引脚 96 | PD13 — SERCOM |
| 引脚 97 | XIN — 12 MHz crystal input |
| 引脚 98 | XOUT — 12 MHz crystal output |
| 引脚 99 | VDDIN — Main supply input |
| 引脚 100 | GND — Ground |
典型应用
ATSAME51N19A-AUT-EFP 适用于 6 应用s: Industrial USB-CAN Gateway, Automotive Body Control Module, USB Human Interface Device (HID) Controller, Industrial IoT Edge Sensor Node, Building Automation Controller, Portable Data Acquisition System.
Industrial USB-CAN Gateway
The ATSAME51N19A-AUT-EFP is well-suited for industrial USB-to-CAN-FD gateways bridging a host PC USB port to a CAN-FD vehicle or factory bus. The integrated USB 2.0 Full-Speed PHY eliminates an external chip, and the on-chip CAN-FD controller supports bit rates up to 5 Mbps per ISO 11898-1:2015. At 120 MHz the Cortex-M4F easily runs a full CAN-FD stack plus USB CDC class driver in under 200 KB Flash, leaving 300 KB free for application protocol translation. The automotive -40 C to +125 C grade tolerates cabinet temperatures near drives or motors.
推荐
Automotive Body Control Module
Body controllers for window lifts, mirror adjust, and lighting benefit from the ATSAME51N19A-AUT-EFP's automotive temperature range and CAN-FD integration. The Cortex-M4F FPU runs model-based body controller algorithms at low CPU load, and the 192 KB SRAM supports multiple LIN/CAN message buffers without dropping frames. The EFP Extended Flash endurance tier tolerates frequent OTA update cycles over a 10-year vehicle service life. Hardware AES and SHA accelerators secure diagnostic UDS sessions on CAN-FD.
推荐
USB Human Interface Device (HID) Controller
The integrated USB 2.0 Full-Speed PHY makes the ATSAME51N19A-AUT-EFP a single-chip solution for USB keyboards, custom input devices, and HID-class peripherals. The 32-channel DMA offloads USB endpoint servicing, allowing the 120 MHz Cortex-M4F to focus on scanning matrices and processing inputs. The 512 KB Flash accommodates USB stacks plus vendor-specific report descriptors, and the 12-bit ADC reads analog joysticks or sliders without an external MUX.
推荐
Industrial IoT Edge Sensor Node
Edge sensor nodes aggregate analog inputs from thermocouples, pressure transducers, and 4-20 mA loops and forward them over CAN-FD or USB to a gateway. The ATSAME51N19A-AUT-EFP's 12-bit 1 Msps ADC samples up to 16 channels with DMA-driven burst captures, and the Cortex-M4F DSP extensions compute RMS, FFT, and digital filters in real time. The hardware AES/SHA accelerators protect TLS-style authentication on the CAN-FD payload without burdening the CPU.
推荐
Building Automation Controller
Building automation controllers for HVAC, lighting, and access control benefit from the ATSAME51N19A-AUT-EFP's mix of USB (for commissioning laptops), CAN-FD (for backbone), and SERCOM (UART/SPI/I2C for sensors and actuators). The 192 KB SRAM holds real-time scheduling tables and BACnet/Modbus frame buffers, while the 32-channel DMA accelerates sensor polling. The -40 C to +125 C range handles rooftop equipment enclosures without derating.
推荐
Portable Data Acquisition System
Portable USB-powered data loggers use the ATSAME51N19A-AUT-EFP as the single-chip ADC + USB interface. The integrated 12-bit ADC at up to 1 Msps captures multi-channel waveforms, DMA streams them to SRAM, and the Full-Speed USB pushes them to a host PC. The 1.62 V to 3.6 V supply range supports direct Li-ion operation, and the Cortex-M4F FPU applies digital filters in firmware. The EFP endurance tier protects long-duration logging across 10-year deployments.
推荐
推荐产品汇总
工程参考数据： ATSAME51N19A-AUT-EFP ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATSAME51N19A-AUT | ATSAME51N19A-AU-EFP | ATSAME51N19A-AU | ATSAME51J19A-AUT-EFP | ATSAMD51N19A-AUT-EFP |
|---|---|---|---|---|---|---|
| Package | TQFP-100 (14x14 mm) | TQFP-100 (14x14 mm) - same | TQFP-100 (14x14 mm) - same | TQFP-100 (14x14 mm) - same | TQFP-100 (14x14 mm) - same | TQFP-100 (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz |
| Flash | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 192 KB | 192 KB | 192 KB | 192 KB | 192 KB | 192 KB |
| Temperature Grade | -40C to +125C (automotive) | -40C to +125C (automotive) | -40C to +85C (commercial) | -40C to +85C (commercial) | -40C to +125C (automotive) | -40C to +125C (automotive) |
| Flash Endurance Grade | Extended Flash Performance (EFP) | Standard | Extended Flash Performance | Standard | Extended Flash Performance | Extended Flash Performance |
| CAN-FD | Yes (1 channel) | Yes (1 channel) | Yes (1 channel) | Yes (1 channel) | Yes (1 channel) | No |
| USB Full-Speed PHY | Yes (on-chip) | Yes (on-chip) | Yes (on-chip) | Yes (on-chip) | Yes (on-chip) | Yes (on-chip) |
关键差异点
- Integrated CAN-FD controller （对比 ATSAMD51N19A-AUT-EFP)
- Extended Flash Performance (EFP) endurance grade （对比 ATSAME51N19A-AUT)
- Automotive -40 C to +125 C temperature grade （对比 ATSAME51N19A-AU-EFP)
设计说明
Provide a 1 uF X7R bulk plus 100 nF NP0/C0G high-frequency decoupling capacitor within 5 mm of each VDDIN and VDDIO pin pair. Estimated: at 120 MHz CPU clock and 3.3 V supply, the SAME51 typically draws 20-30 mA active plus peripheral transients, so the 1 uF bulk covers mid-frequency load steps while the 100 nF suppresses the clock-harmonic spurs. Star-route VDDIO from a ferrite bead if analog and digital segments coexist.
Do not confuse the -EFP (Extended Flash Performance) suffix with the -EF (Extended Filter) audio suffix. The -EFP variant is specifically for higher Flash endurance and retention, targeting OTA firmware update use cases. Also note that the -AUT suffix designates -40 C to +125 C automotive grade, while -AU is -40 C to +85 C commercial. Mixing these up can cause firmware boot failures at temperature extremes or shortened Flash lifetime.
Route the 12 MHz crystal traces (XIN/XOUT) symmetrically with matching length and grounded guard rings, and place load capacitors within 2 mm of the crystal pins. Keep the USB DP/DM traces as a 90 ohm differential pair, length-matched within 150 mils, and avoid routing near switching signals. The CAN-FD TX/RX traces should also be length-matched to maintain bit timing symmetry per ISO 11898-1:2015.
Estimated: USB Full-Speed signal integrity at 12 Mbps requires the DP/DM trace impedance to be 90 ohms differential with 45 ohms single-ended to ground. Use a 4-layer stackup with continuous ground plane beneath the USB traces, and place the 15 kohm pull-down on DM and 1.5 kohm pull-up on DP (per USB 2.0 spec) close to the connector side. Avoid vias on DP/DM if at all possible.
合规信息
RoHS compliant per Microchip product page. The -AUT suffix denotes automotive temperature grade -40 C to +125 C; -EFP suffix denotes Extended Flash Performance endurance/retention. AEC-Q100 qualification status should be confirmed via Microchip factory datasheet for the specific ATSAME51N19A-AUT-EFP suffix.
