ATSAME51J18A-AUT-EFP - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip
料号： ATSAME51J18A-AUT-EFP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.32 | $4.32 |
| 10 | $3.95 | $39.50 |
| 100 | $3.42 | $342.00 |
| 500 | $2.88 | $1,440.00 |
| 1,000 | $2.41 | $2,410.00 |
| 3,000 | $1.99 | $5,970.00 |
ATSAME51J18A-AUT-EFP 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O. The ATSAME51J18A-AUT-EFP belongs to the ARM Cortex-M4F family, a 32-bit RISC architecture with DSP extensions and a hardware FPU. Within the broader taxonomy, MCUs sit under microcontrollers -> embedded processors -> semiconductors. The Cortex-M4F target application space includes motor control, industrial sensing, connectivity hubs, and consumer audio.
Key features include 120 MHz CPU with FPU and DSP instructions, 256 KB Dual-Panel Flash with ECC for robust code storage, 128 KB SRAM, and a high-speed USB 2.0 Full-Speed interface plus a CAN-FD controller. The device also integrates multiple SERCOM peripherals (configurable as UART/SPI/I2C), a 12-bit ADC with up to 16 channels, a 12-bit DAC, and an Event System for deterministic inter-peripheral signaling.
The SAM E51 architecture uses a 4-layer AHB matrix for parallel bus access between the CPU, SRAM banks, and peripherals, minimizing contention at high peripheral loads. Hardware accelerators include a Peripheral Touch Controller (PTC) supporting capacitive touch, a Cryptographic Accelerator (TRNG, AES) on equivalent family parts, and an Event System allowing peripherals to trigger each other without CPU intervention - critical for low-latency control loops.
Typical applications include industrial automation controllers, USB-to-CAN bridges, IoT edge nodes, smart sensor hubs, and capacitive touch human-machine interfaces. The wide operating voltage (1.71V-3.6V) and -40C to +85C industrial temperature range suit factory-floor deployments.
When designing with this device, ensure PCB layout keeps the VDDCORE decoupling network within 5 mm of the LDO output pins. Use the SAM E51 family header files and Atmel/Microchip START or MPLAB Harmony code configurator to generate peripheral initialization code, and validate USB 2.0 Full-Speed signal integrity against the USB 2.0 specification compliance checklist.
This page synthesizes distributor pricing, drop-in alternatives from the SAME51/SAMD51 family, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： ATSAME51J18A-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： ATSAME51J18A-AUT-EFP （相同外形与封装尺寸） ——差异在于 ADC, USB, CAN, Operating Temperature, DAC.
快速对比工具——选择替代料号进行并排对比：
ATSAME51J18A-AUT
✅ 直接替换✓ 有现货
$4.65 / 个
查看数据手册 →ATSAME51J18A-AFT
✅ 直接替换✓ 有现货
$5.21 / 个
查看数据手册 →ATSAME51J18A-AU-EFP
✅ 直接替换✓ 有现货
$5.78 / 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 →ATSAME51J18A-AF
✅ 直接替换✓ 有现货
$3.85 / 个
查看数据手册 →ATSAMD51J18A-AUT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.78 / 个
查看数据手册 →ATSAMD51J19A-AUT-EFP
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.45 / 个
查看数据手册 →ATSAME51J18A-AUT-EFP 最大额定值与电气特性
| Core | ARM Cortex-M4F with FPU and DSP |
| Maximum CPU Clock | 120 MHz |
| Flash Memory | 256 KB (Dual Panel with ECC) |
| SRAM | 128 KB |
| 封装 | 64-pin TQFP (10x10 mm) |
| Operating Voltage (VDDIO) | 1.71 V to 3.6 V |
| 工作温度 | -40 C to +85 C |
| USB Interface | USB 2.0 Full-Speed (Host/Device) |
| CAN Interface | CAN-FD controller |
| ADC | 12-bit, up to 16 channels |
| DAC | 12-bit |
| SERCOM | Configurable UART/SPI/I2C |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
ATSAME51J18A-AUT-EFP 引脚配置
| 引脚 1 | PB11 — General purpose I/O / SERCOM |
| 引脚 2 | PB10 — General purpose I/O / SERCOM |
| 引脚 3 | PB09 — General purpose I/O / SERCOM |
| 引脚 4 | PB08 — General purpose I/O / SERCOM |
| 引脚 5 | PA27 — General purpose I/O |
| 引脚 6 | GND — Ground |
| 引脚 7 | VDD — Digital I/O supply voltage |
| 引脚 8 | VDDCORE — Core voltage (decoupled internally) |
| 引脚 9 | PA30 — General purpose I/O / SWD clock |
| 引脚 10 | PA31 — General purpose I/O / SWDIO |
| 引脚 11 | PB22 — General purpose I/O / SERCOM |
| 引脚 12 | PB23 — General purpose I/O / SERCOM |
| 引脚 13 | PA00 — General purpose I/O / ADC AIN0 |
| 引脚 14 | PA01 — General purpose I/O / ADC AIN1 |
| 引脚 15 | PA02 — General purpose I/O / ADC AIN2 |
| 引脚 16 | PA03 — General purpose I/O / ADC AIN3 |
| 引脚 17 | GND — Ground |
| 引脚 18 | VDD — Digital I/O supply voltage |
| 引脚 19 | PB02 — General purpose I/O / SERCOM |
| 引脚 20 | PB03 — General purpose I/O / SERCOM |
| 引脚 21 | PA04 — General purpose I/O / ADC AIN4 |
| 引脚 22 | PA05 — General purpose I/O / ADC AIN5 |
| 引脚 23 | PA06 — General purpose I/O / ADC AIN6 |
| 引脚 24 | PA07 — General purpose I/O / ADC AIN7 |
| 引脚 25 | PA08 — General purpose I/O / USB VBUS |
| 引脚 26 | PA09 — General purpose I/O / USB DM |
| 引脚 27 | PA10 — General purpose I/O / USB DP |
| 引脚 28 | PA11 — General purpose I/O / CAN TX |
| 引脚 29 | PA12 — General purpose I/O / CAN RX |
| 引脚 30 | GND — Ground |
| 引脚 31 | VDD — Digital I/O supply voltage |
| 引脚 32 | PB04 — General purpose I/O / SERCOM |
| 引脚 33 | PB05 — General purpose I/O / SERCOM |
| 引脚 34 | PA13 — General purpose I/O / SERCOM |
| 引脚 35 | PA14 — General purpose I/O / SERCOM |
| 引脚 36 | PA15 — General purpose I/O / SERCOM |
| 引脚 37 | PA16 — General purpose I/O / SERCOM |
| 引脚 38 | PA17 — General purpose I/O / SERCOM |
| 引脚 39 | PA18 — General purpose I/O / SERCOM |
| 引脚 40 | PA19 — General purpose I/O / SERCOM |
| 引脚 41 | GND — Ground |
| 引脚 42 | VDD — Digital I/O supply voltage |
| 引脚 43 | PB06 — General purpose I/O / SERCOM |
| 引脚 44 | PB07 — General purpose I/O / SERCOM |
| 引脚 45 | PB12 — General purpose I/O / SERCOM |
| 引脚 46 | PB13 — General purpose I/O / SERCOM |
| 引脚 47 | PB14 — General purpose I/O / SERCOM |
| 引脚 48 | PB15 — General purpose I/O / SERCOM |
| 引脚 49 | PA20 — General purpose I/O / SERCOM |
| 引脚 50 | PA21 — General purpose I/O / SERCOM |
| 引脚 51 | PA22 — General purpose I/O / DAC |
| 引脚 52 | PA23 — General purpose I/O / DAC |
| 引脚 53 | PA24 — General purpose I/O / USB ID |
| 引脚 54 | PA25 — General purpose I/O / USB SOF |
| 引脚 55 | GND — Ground |
| 引脚 56 | VDD — Digital I/O supply voltage |
| 引脚 57 | PB16 — General purpose I/O / SERCOM |
| 引脚 58 | PB17 — General purpose I/O / SERCOM |
| 引脚 59 | PB18 — General purpose I/O / SERCOM |
| 引脚 60 | PB19 — General purpose I/O / SERCOM |
| 引脚 61 | PB20 — General purpose I/O / SERCOM |
| 引脚 62 | PB21 — General purpose I/O / SERCOM |
| 引脚 63 | NRST — Reset input (active low) |
| 引脚 64 | VDDANA — Analog supply voltage |
典型应用
ATSAME51J18A-AUT-EFP 适用于 7 应用s: Industrial USB-CAN Gateway, Smart Sensor Hub with Touch HMI, Motor Control Drive Board, IoT Edge Node with Secure Connectivity, Audio Processing and Effects Unit, Automotive Body Control Module, Medical Patient Monitoring Peripheral.
Industrial USB-CAN Gateway
The ATSAME51J18A-AUT-EFP is purpose-built for industrial USB-to-CAN gateways that bridge PC-based configuration tools and CAN-FD fieldbus networks. Its integrated USB 2.0 Full-Speed device controller and hardware CAN-FD controller eliminate the need for external bridge chips, reducing both BOM cost and PCB area. The 120 MHz Cortex-M4F with FPU handles CAN-FD protocol overhead and USB enumeration with ample headroom. Engineers typically implement the gateway firmware using Microchip's CAN-FD library and the ASF/MPLAB Harmony USB stack. The -40C to +85C industrial temperature rating supports factory-floor deployments where ambient temperatures fluctuate. The Extended Flash Performance (EFP) variant ensures reliable firmware execution under heavy read cycles during continuous CAN traffic logging.
推荐
Smart Sensor Hub with Touch HMI
The ATSAME51J18A-AUT-EFP's integrated Peripheral Touch Controller (PTC) supports hardware-accelerated capacitive touch sensing for button grids, sliders, and wheels in smart home and appliance HMI panels. The Event System routes touch events to interrupt routines without CPU polling, enabling deterministic response times under 1 ms. The 256 KB Dual-Panel Flash stores both touch firmware and sensor calibration tables with ECC protection against bit errors in noisy motor environments. The Cortex-M4F FPU processes sensor fusion algorithms in real time while the SERCOM peripherals connect to external I2C/SPI sensors. The 64-pin TQFP package provides generous I/O for multi-channel touch and sensor fan-out.
推荐
Motor Control Drive Board
The ATSAME51J18A-AUT-EFP serves as the main controller in BLDC and PMSM motor drive boards for industrial pumps, fans, and small servo systems. The 120 MHz Cortex-M4F with single-precision FPU executes field-oriented control (FOC) loops with PWM update rates above 20 kHz, while the Event System synchronizes ADC sampling to PWM edges for low-latency current measurement. The 12-bit ADC with up to 16 channels reads phase currents and DC bus voltage simultaneously. The Extended Flash Performance variant ensures deterministic code execution under heavy interrupt load. Engineers pair this MCU with external gate drivers like the MCP8026 or Si8271 for the high-voltage power stage.
推荐
IoT Edge Node with Secure Connectivity
The ATSAME51J18A-AUT-EFP's USB and CAN-FD interfaces make it suitable for IoT edge nodes that aggregate sensor data and forward it to cloud platforms via wired backhaul. The hardware Floating Point Unit accelerates edge analytics and anomaly detection, while the 256 KB Flash accommodates TLS/SSL stacks and protocol buffers. The 128 KB SRAM handles multi-stream sensor buffering without external memory. Extended Flash Performance ensures reliable operation during heavy read cycles common in always-on edge deployments. The industrial temperature grade supports outdoor enclosures and harsh industrial environments.
推荐
Audio Processing and Effects Unit
The ATSAME51J18A-AUT-EFP's 120 MHz Cortex-M4F with single-precision FPU and DSP instructions executes audio effects processing such as parametric EQ, reverb, and compression in real time at 48 kHz sample rates. The 12-bit DAC provides line-level audio output for simple effects pedals and processors, while SERCOM peripherals connect to external I2S audio codecs for higher fidelity. The Event System synchronizes DMA audio transfers to sample-clock edges without CPU intervention. The 256 KB Flash stores preset libraries, and 128 KB SRAM buffers multiple audio streams. The industrial temperature grade supports audio equipment installations in demanding venues.
推荐
Automotive Body Control Module
With its CAN-FD controller and -40C to +85C operating temperature range, the ATSAME51J18A-AUT-EFP fits body control modules managing lighting, mirrors, and accessory systems in passenger vehicles. The Extended Flash Performance variant delivers the flash endurance required for constant bus monitoring and diagnostic logging. For automotive-grade variants that meet AEC-Q100 at higher temperatures, the ATSAME51J18A-AFT is the recommended drop-in replacement. The 256 KB Flash stores calibration tables and OBD-II diagnostic routines, while the 12-bit ADC reads sensor inputs. Multiple SERCOM instances interface with LIN transceivers and local sensor clusters.
推荐
Medical Patient Monitoring Peripheral
The ATSAME51J18A-AUT-EFP's processing headroom and rich peripheral set support patient monitoring peripherals such as pulse oximeters, blood pressure monitors, and portable ECG recorders. The 12-bit ADC digitizes analog sensor signals at clinical accuracy levels, while the FPU accelerates DSP-based signal processing for heart rate extraction and arrhythmia detection. The USB 2.0 Full-Speed interface enables battery charging and data sync with host tablets or PCs. Extended Flash Performance ensures reliable firmware operation throughout the product lifetime. The compact 64-pin TQFP package fits space-constrained wearable enclosures.
推荐
推荐产品汇总
工程参考数据： ATSAME51J18A-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 | ATSAME51J18A-AUT | ATSAME51J18A-AFT | ATSAME51J18A-AU-EFP | ATSAME51J19A-AUT-EFP | ATSAMD51J18A-AUT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) |
| Flash Memory | 256 KB | 256 KB | 256 KB | 512 KB | 256 KB | |
| SRAM | 128 KB | 128 KB | 256 KB | 128 KB | ||
| Maximum Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | |
| EFP (Extended Flash Performance) | Yes | No | No | Yes | Yes | |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C (automotive) | -40C to +85C | ||
| Packaging Form | Tape & Reel | Tape & Reel | Tape & Reel | Tray | ||
| RoHS | Compliant | Compliant | Compliant | Compliant |
关键差异点
- Integrated USB 2.0 Full-Speed plus CAN-FD in single MCU （对比 ATSAMD21J18A-AUT)
- Extended Flash Performance (EFP) for higher endurance （对比 ATSAME51J18A-AUT)
- 256 KB Flash with ECC for robust code storage （对比 ATSAME51J18A-AU-EFP)
- Single-precision FPU for floating-point algorithms （对比 PIC32MX series)
设计说明
Estimated: at 120 MHz active CPU load, the ATSAME51J18A-AUT-EFP draws approximately 14-18 mA core current from VDDCORE. Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of each VDDCORE pin, and a bulk 4.7 uF ceramic on VDDANA. The internal LDO requires adequate PCB copper pour for thermal dissipation; a minimum 100 mm2 ground plane under the TQFP thermal pad-adjacent area is recommended for reliable operation above 70C ambient.
Route the USB 2.0 Full-Speed differential pair (USB_DP, USB_DM) with 90-ohm differential impedance and length matching within 2 mm. Place the USB series termination resistors as close as possible to the MCU pins. For CAN-FD, route CAN_TX and CAN_RX with 120-ohm characteristic impedance and place a 120-ohm termination resistor at each end of the bus. Keep analog signals (ADC inputs) routed away from switching power and USB data lines to minimize crosstalk.
Do not exceed the absolute maximum VDD of 3.6 V. The Cortex-M4F core runs at 1.2 V internally, derived from the on-chip voltage regulator - never drive VDDCORE from an external supply. The SAME51 family requires careful PLL configuration; verify the crystal oscillator load capacitance matches the chosen crystal's CL specification, typically 12 pF for common 12 MHz crystals. Reset (NRST) must be pulled high through a 10 kohm resistor for normal operation.
The SERCOM peripherals share I/O pins with general purpose I/O; when assigning peripheral functions, ensure alternate function mappings are configured before peripheral enable to avoid bus contention. For high-speed ADC sampling above 500 kSPS, decouple VDDANA with an additional 10 uF bulk capacitor and use separate analog and digital ground planes connected at a single point. The Event System routes signals between peripherals without CPU intervention and should be configured early to avoid race conditions.
合规信息
Component is RoHS and REACH compliant per Microchip product documentation. Not AEC-Q100 qualified in the -AUT-EFP variant; choose -AFT suffix for AEC-Q100 Grade 1 automotive qualification.
