ATSAME54P20A-AU-EFP - 120MHz Cortex-M4F MCU, 1MB Flash, TQFP-128
MPN: ATSAME54P20A-AU-EFP ✓ Hoạt độngATSAME54P20A-AU-EFP Tóm tắt
An ARM Cortex-M4F MCU is a microcontroller that combines the Cortex-M4 DSP-enhanced core with an IEEE 754 single-precision floating-point unit, providing hardware-accelerated math and DSP in addition to deterministic interrupt handling for real-time embedded systems. The SAM E54 sits above general-purpose Cortex-M0+ MCUs in performance and below Cortex-M7 parts, targeting industrial control, IoT gateways, HMI, and audio/voice front-end designs where deterministic latency and DSP throughput matter.
Key features include the Cortex-M4F core with FPU and DSP extensions running at up to 120 MHz, 1 MB of dual-panel Flash with ECC for high-availability firmware, 256 KB SRAM with ECC, a high-speed USB 2.0 Full-Speed device/host/On-The-Go interface, 10/100 Mbps Ethernet MAC with IEEE 1588 support, CAN-FD controllers, SD/MMC host interface, and multiple SERCOM (SERial COMmunication) channels that can be configured as UART, SPI, I2C, or LIN. The part additionally provides a 12-bit ADC up to 1 Msps, DAC, analog comparators, and cryptographic accelerators for AES/SHA.
The architecture uses a multi-layer AHB bus matrix connecting the CPU, SRAM, Flash, peripheral bridges, and DMAC, allowing the Cortex-M4F core to fetch from Flash with zero-wait-state performance under typical conditions and to sustain high-throughput peripheral transfers concurrently with CPU execution. The dual-panel Flash layout enables read-while-write, useful for in-field firmware updates without halting execution.
Typical applications include industrial PLCs and motor controllers, building automation gateways, HMI touch panels, USB peripherals with Ethernet bridging, audio processing front-ends that benefit from the FPU, CAN-FD automotive body and chassis ECUs, and secure connected IoT nodes using the integrated crypto accelerators and TRNG.
Designers should provide adequate bypass on VDDIO and VDDANA domains per the SAM E54 datasheet recommendation (typically 100 nF plus bulk capacitors), ensure the 32.768 kHz crystal load capacitance matches the chosen crystal, and reserve the SWD pins (SWDIO/SWCLK) for in-system programming. The Ethernet PHY, USB, and CAN-FD interfaces each require external transceiver ICs.
This page synthesises distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho ATSAME54P20A-AU-EFP — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATSAME54P20A-AU-EFP (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, DAC, SRAM, Ethernet.
ATSAME54P20A-AFT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATSAME54P19A-AU-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME54N20A-AU-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME54N19A-AU-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51P20A-AUT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME54P20A-AU-EFP Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M4F with FPU and DSP extensions |
| Maximum CPU Clock | 120 MHz |
| Program Memory (Flash) | 1 MB (1M x 8) with ECC, dual-panel |
| SRAM | 256 KB with ECC |
| Hộp | 128-TQFP (14x14 mm) |
| Số chân | 128 |
| Nhiệt độ hoạt động | -40C to +85C (industrial, "AU" grade) |
| USB Interface | USB 2.0 Full-Speed Device/Host/OTG |
| Ethernet | 10/100 Mbps MAC with IEEE 1588 support |
| CAN | CAN-FD controllers (multiple instances) |
| SD/MMC | SDHC/SDXC host interface |
| ADC | 12-bit, up to 1 Msps |
| DAC | Yes (12-bit) |
| Crypto Accelerator | AES, SHA, TRNG |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Programming Interface | SWD (Serial Wire Debug) |
Cấu hình chân ATSAME54P20A-AU-EFP
| Chân 1 | VDDIO — I/O supply voltage |
| Chân 2 | PA00 — GPIO / SERCOM1[0] / CAN RX |
| Chân 3 | PA01 — GPIO / SERCOM1[1] / CAN TX |
| Chân 4 | PA02 — GPIO / SERCOM1[2] / ADC AIN0 |
| Chân 5 | PA03 — GPIO / SERCOM1[3] / ADC AIN1 |
| Chân 6 | PA04 — GPIO / SERCOM0[0] / VREF |
| Chân 7 | PA05 — GPIO / SERCOM0[1] |
| Chân 8 | PA06 — GPIO / SERCOM0[2] |
| Chân 9 | PA07 — GPIO / SERCOM0[3] |
| Chân 10 | PA08 — GPIO / SERCOM2[0] |
| Chân 11 | PA09 — GPIO / SERCOM2[1] |
| Chân 12 | PA10 — GPIO / SERCOM2[2] |
| Chân 13 | PA11 — GPIO / SERCOM2[3] |
| Chân 14 | PA12 — GPIO / CANFD0 TX |
| Chân 15 | PA13 — GPIO / CANFD0 RX |
| Chân 16 | PA14 — GPIO |
| Chân 17 | PA15 — GPIO |
| Chân 18 | PA16 — GPIO |
| Chân 19 | PA17 — GPIO |
| Chân 20 | PA18 — GPIO |
| Chân 21 | PA19 — GPIO |
| Chân 22 | PA20 — GPIO |
| Chân 23 | PA21 — GPIO |
| Chân 24 | PA22 — GPIO |
| Chân 25 | PA23 — GPIO |
| Chân 26 | PA24 — GPIO |
| Chân 27 | PA25 — GPIO |
| Chân 28 | PB00 — GPIO |
| Chân 29 | PB01 — GPIO |
| Chân 30 | PB02 — GPIO |
| Chân 31 | PB03 — GPIO |
| Chân 32 | PB04 — GPIO |
| Chân 33 | PB05 — GPIO |
| Chân 34 | PB06 — GPIO |
| Chân 35 | PB07 — GPIO |
| Chân 36 | PB08 — GPIO |
| Chân 37 | PB09 — GPIO |
| Chân 38 | PB10 — GPIO |
| Chân 39 | PB11 — GPIO |
| Chân 40 | PB12 — GPIO |
| Chân 41 | PB13 — GPIO |
| Chân 42 | PB14 — GPIO |
| Chân 43 | PB15 — GPIO |
| Chân 44 | PB16 — GPIO |
| Chân 45 | PB17 — GPIO |
| Chân 46 | PB18 — GPIO |
| Chân 47 | PB19 — GPIO |
| Chân 48 | PB20 — GPIO |
| Chân 49 | PB21 — GPIO |
| Chân 50 | PB22 — GPIO |
| Chân 51 | PB23 — GPIO |
| Chân 52 | PB24 — GPIO |
| Chân 53 | PB25 — GPIO |
| Chân 54 | PB26 — GPIO |
| Chân 55 | PB27 — GPIO |
| Chân 56 | PB28 — GPIO |
| Chân 57 | PB29 — GPIO |
| Chân 58 | PB30 — GPIO |
| Chân 59 | PB31 — GPIO |
| Chân 60 | PC00 — GPIO |
| Chân 61 | PC01 — GPIO |
| Chân 62 | PC02 — GPIO |
| Chân 63 | PC03 — GPIO |
| Chân 64 | PC04 — GPIO |
| Chân 65 | PC05 — GPIO |
| Chân 66 | PC06 — GPIO |
| Chân 67 | PC07 — GPIO |
| Chân 68 | PC08 — GPIO |
| Chân 69 | PC09 — GPIO |
| Chân 70 | PC10 — GPIO |
| Chân 71 | PC11 — GPIO |
| Chân 72 | PC12 — GPIO |
| Chân 73 | PC13 — GPIO |
| Chân 74 | PC14 — GPIO / XIN32 (RTC crystal) |
| Chân 75 | PC15 — GPIO / XOUT32 (RTC crystal) |
| Chân 76 | PC16 — GPIO |
| Chân 77 | PC17 — GPIO |
| Chân 78 | PC18 — GPIO |
| Chân 79 | PC19 — GPIO |
| Chân 80 | PC20 — GPIO |
| Chân 81 | PC21 — GPIO |
| Chân 82 | PC22 — GPIO |
| Chân 83 | PC23 — GPIO |
| Chân 84 | PC24 — GPIO |
| Chân 85 | PC25 — GPIO |
| Chân 86 | PC26 — GPIO |
| Chân 87 | PC27 — GPIO |
| Chân 88 | PC28 — GPIO |
| Chân 89 | PC29 — GPIO |
| Chân 90 | PC30 — GPIO |
| Chân 91 | PC31 — GPIO |
| Chân 92 | PD00 — GPIO |
| Chân 93 | PD01 — GPIO |
| Chân 94 | PD02 — GPIO |
| Chân 95 | PD03 — GPIO |
| Chân 96 | PD04 — GPIO |
| Chân 97 | PD05 — GPIO |
| Chân 98 | PD06 — GPIO |
| Chân 99 | PD07 — GPIO |
| Chân 100 | PD08 — GPIO |
| Chân 101 | PD09 — GPIO |
| Chân 102 | PD10 — GPIO |
| Chân 103 | PD11 — GPIO |
| Chân 104 | PD12 — GPIO / SWDIO |
| Chân 105 | PD13 — GPIO / SWDCLK |
| Chân 106 | PD14 — GPIO |
| Chân 107 | PD15 — GPIO |
| Chân 108 | PD16 — GPIO |
| Chân 109 | PD17 — GPIO |
| Chân 110 | PD18 — GPIO |
| Chân 111 | PD19 — GPIO |
| Chân 112 | PD20 — GPIO |
| Chân 113 | PD21 — GPIO |
| Chân 114 | PD22 — GPIO |
| Chân 115 | PD23 — GPIO |
| Chân 116 | PD24 — GPIO |
| Chân 117 | PD25 — GPIO |
| Chân 118 | PD26 — GPIO |
| Chân 119 | PD27 — GPIO |
| Chân 120 | PD28 — GPIO |
| Chân 121 | PD29 — GPIO / NRST (reset) |
| Chân 122 | PD30 — GPIO |
| Chân 123 | PD31 — GPIO |
| Chân 124 | GND — Ground (digital) |
| Chân 125 | VDDANA — Analog supply voltage |
| Chân 126 | GNDA — Analog ground |
| Chân 127 | VSW — Core voltage (internal regulator) |
| Chân 128 | VDD — Core supply voltage |
Ứng dụng tiêu biểu
ATSAME54P20A-AU-EFP phù hợp cho 7 Áp dụngs: Industrial PLC and Motor Controller, Building Automation Gateway with Ethernet, Human-Machine Interface (HMI) Touch Panel, Audio Processing Front-End with FPU DSP, CAN-FD Automotive Body and Chassis ECU, Secure Connected IoT Edge Node, USB Industrial Peripheral with Ethernet Bridging.
Industrial PLC and Motor Controller
The ATSAME54P20A-AU-EFP is well suited to industrial PLC and motor controller designs because its 120 MHz Cortex-M4F core with single-precision FPU executes floating-point PID loops and field-oriented motor control within deterministic cycle times. Its 1 MB dual-panel Flash with ECC enables safe in-field firmware updates without halting execution - critical for 24/7 industrial uptime - while 256 KB of ECC-protected SRAM holds real-time process data and stack space for FreeRTOS plus control graphs. The dual CAN-FD controllers support modern industrial protocols (CANopen, EtherCAT slave via SPI-to-EtherCAT ICs), and Ethernet with IEEE 1588 hardware timestamping enables precise distributed-clock synchronisation across servo networks. Peripherals: SERCOM channels (configurable UART/SPI/I2C/LIN) handle sensor and HMI links; the 12-bit ADC at up to 1 Msps samples current-shunt amplifiers for torque and speed feedback; PWM outputs drive three-phase inverter FETs via gate drivers.
Được đề xuất
Building Automation Gateway with Ethernet
ATSAME54P20A-AU-EFP fits building automation gateway designs by integrating the Ethernet MAC with IEEE 1588 timestamping, USB 2.0 OTG, and CAN-FD in a single 128-TQFP device, eliminating the need for a companion connectivity MCU. The 120 MHz Cortex-M4F with FPU runs BACnet, Modbus TCP, and TLS-over-Ethernet protocol stacks at line rate, while 1 MB of Flash holds the full protocol stack plus configuration storage and 256 KB of SRAM buffers incoming and outgoing TCP segments. The crypto accelerator (AES, SHA, TRNG) handles TLS handshakes and secure key storage, important for BACnet Secure Connect or KNX IP Secure deployments. The dual-panel Flash with ECC supports fail-safe over-the-air firmware updates from the cloud while the gateway continues normal operation - no service interruption. Peripherals like SERCOM (UART/SPI/I2C) interface with RS-485 transceivers, KNX twisted-pair chipsets, and Modbus RTU sensors; the 12-bit ADC reads analog sensors; PWM outputs drive analog-output modules.
Được đề xuất
Human-Machine Interface (HMI) Touch Panel
The ATSAME54P20A-AU-EFP suits HMI touch panel designs because the Extended Flash Performance suffix supports sustained zero-wait-state execution from Flash at 120 MHz, which is essential for rendering frames and processing touch events within strict timing budgets. The integrated parallel display controller (PDC) and image decoder accelerate GUI rendering from framebuffers in 256 KB SRAM; for richer UIs developers can attach external SDRAM via the EBI interface without taxing CPU bandwidth. The hardware crypto accelerators free CPU cycles for graphics while TLS secures the local management web page; the USB 2.0 Full-Speed OTG port enables firmware USB-stick loading during commissioning. Peripherals include SERCOM channels for UART/SPI/I2C links to touch controllers and serial-display modules, plus a 12-bit ADC for monitoring front-panel backlight current and temperature.
Được đề xuất
Audio Processing Front-End with FPU DSP
The ATSAME54P20A-AU-EFP suits audio processing front-end designs because its Cortex-M4F core integrates a single-precision IEEE 754 FPU plus DSP extensions (SIMD instructions) that accelerate biquad, FIR, and FFT kernels far beyond what an integer-only core can achieve. At 120 MHz the FPU comfortably executes multi-channel sample-rate conversion, noise suppression (such as LMS/RLS adaptive filtering), and AEC (acoustic echo cancellation) for hands-free speakerphones and voice-enabled IoT devices. The 12-bit ADC at up to 1 Msps captures analog microphone arrays; the DAC outputs reference audio for testing or line-level monitor paths. Memory budget: 1 MB of Flash holds audio-processing libraries plus codec firmware, and 256 KB of SRAM is sufficient for ring buffers and overlap-add kernels without external memory. The SERCOM channels drive I2S or TDM codecs like the WM8904 / SAI via bit-banging or external SPDIF transceivers. The crypto accelerator can also protect licensed audio algorithms from extraction.
Được đề xuất
CAN-FD Automotive Body and Chassis ECU
The ATSAME54P20A-AU-EFP targets automotive body and chassis ECUs because its dual CAN-FD controllers support the modern 2 Mbps CAN-FD bitrate alongside legacy CAN 2.0B, allowing migration of body networks without replacing the entire bus backbone. The Cortex-M4F at 120 MHz executes AUTOSAR-compatible application cores plus complex device drivers within hard deadlines, while the 1 MB dual-panel Flash with ECC provides the firmware storage headroom required for AUTOSAR RTE plus vendor-specific application code. The crypto accelerator and TRNG support secure boot and secure onboard communication (SecOC) authentication. Hardware TRNG seeds authentication keys; AES/SHA accelerators verify message MACs without loading the CPU. Note the "AU" suffix designates the industrial -40C to +85C grade; for under-hood ECUs a -40C to +125C automotive-grade part is required, so verify temperature grade before commissioning for chassis deployment.
Được đề xuất
Secure Connected IoT Edge Node
The ATSAME54P20A-AU-EFP targets secure connected IoT edge nodes because the integrated AES and SHA hardware accelerators plus the True Random Number Generator (TRNG) provide the cryptographic primitives needed for TLS 1.3 handshakes and secure firmware boot without external crypto ICs. At 120 MHz, the Cortex-M4F executes the main application plus the TLS stack and FreeRTOS scheduler, leaving headroom for sensor aggregation and edge analytics. 1 MB of Flash accommodates MCU firmware, the TLS library, and a small file system; the dual-panel ECC Flash enables fail-safe over-the-air (OTA) updates so a corrupted image cannot brick the device. Ethernet or USB bring connectivity, while SERCOM channels connect to LTE-M or Wi-Fi modules (such as the ATECC608B on the crypto side). The integrated RTC with calendar mode supports periodic wake-from-deep-sleep for battery-friendly deployments, and the 12-bit ADC interfaces with analog sensors.
Được đề xuất
USB Industrial Peripheral with Ethernet Bridging
The ATSAME54P20A-AU-EFP suits USB industrial peripherals that bridge to Ethernet because the USB 2.0 Full-Speed OTG controller supports both device and host modes, while the integrated 10/100 Ethernet MAC with IEEE 1588 timestamping converts the USB-class device data into deterministic-latency Ethernet frames for factory networks. Peripherals like programmable logic controllers, USB barcode scanners, or USB test-and-measurement equipment can be added to Ethernet without redesigning firmware. The 120 MHz Cortex-M4F executes USB class drivers plus a TCP/IP-over-Ethernet stack with hardware timestamps for industrial-grade latency; the 1 MB Flash stores the bridging stack plus the USB class implementations. The crypto accelerator secures remote management (HTTPS, SNMPv3); the SERCOM channels provide additional UART/SPI/I2C ports for legacy device support.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAME54P20A-AU-EFP — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ATSAME54P20A-AFT | ATSAME54P19A-AU-EFP | ATSAME54N20A-AU-EFP | ATSAME54N19A-AU-EFP | ATSAMD51P20A-AUT |
|---|---|---|---|---|---|---|
| Package | 128-TQFP (14x14) | 128-TQFP (14x14) - same | 128-TQFP (14x14) - same | 128-TQFP (14x14) - same | 128-TQFP (14x14) - same | 128-TQFP (14x14) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M4F with FPU | ARM Cortex-M4F with FPU | ARM Cortex-M4F with FPU | ARM Cortex-M4F with FPU | ARM Cortex-M4F with FPU | ARM Cortex-M4F with FPU |
| Maximum CPU Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 1 MB (1M x 8) dual-panel, ECC | 1 MB dual-panel ECC | 1 MB dual-panel ECC | 1 MB dual-panel ECC | 512 KB dual-panel ECC | 1 MB dual-panel ECC |
| SRAM | 256 KB ECC | 256 KB ECC | 256 KB ECC | 256 KB ECC | 256 KB ECC | 256 KB ECC |
| EFP (Extended Flash Performance) | Yes | Yes (EFP) | Yes (EFP) | Yes (EFP) | Yes (EFP) | Standard grade (no EFP) |
| Operating Temperature | -40C to +85C (industrial, AU) | -40C to +85C (industrial, AF) | -40C to +85C (industrial, AU) | -40C to +85C (industrial, AU) | -40C to +85C (industrial, AU) | -40C to +85C (industrial) |
| Ethernet MAC | Yes (10/100, IEEE 1588) | Yes (10/100, IEEE 1588) | Yes (10/100, IEEE 1588) | Yes (10/100, IEEE 1588) | Yes (10/100, IEEE 1588) | Yes (10/100, IEEE 1588) |
Bảo phân biệt quan trọng
- Extended Flash Performance (EFP) grade for sustained 120 MHz execution from Flash (vsATSAME54P20A-AU (standard grade))
- Dual-panel Flash with ECC for fail-safe OTA and high-availability firmware (vsATSAME54N19A-AU-EFP)
- Industrial 128-TQFP (14x14 mm) package option with broad ecosystem support (vsATSAME54P20A-CCT (smaller package))
Ghi chú thiết kế
The ATSAME54P20A-AU-EFP requires two supply domains: VDDIO for the I/O ring (typically 3.3V) and VDDANA for the analog domain (also typically 3.3V); the internal core regulator derives VSW from VDDANA/VDD. Place a 100 nF X7R ceramic bypass capacitor plus a 4.7 uF bulk on each of VDDIO and VDDANA, keeping them within 5 mm of the corresponding pins. For noise-sensitive analog performance, decouple VDDANA through a ferrite bead fed from the same 3.3V rail that supplies VDDIO, preventing digital switching currents from contaminating the analog supply. The internal core voltage regulator only requires external bulk on VSW (typically 1 uF X7R); do not connect VSW directly to an external 1.2V source.
At 120 MHz sustained execution with the Extended Flash Performance grade, typical core current draw is in the 60-80 mA range from VSW. The TQFP-128 (14x14) package thermal resistance is approximately theta_JA of 35-45 C/W on a standard 2-layer test board with minimum copper, rising to 25-30 C/W on a 4-layer board with thermal via array under the exposed leads. At 100 mW dissipation and 40 C/W thermal resistance the junction rise is only 4C, so thermal management is not generally required for the TQFP-128 package at industrial ambient temperatures - but the same die in a smaller QFN package would require thermal copper relief. No heatsink is needed.
Route the Ethernet differential pairs (TX+/TX-, RX+/RX-) as 100 ohm differential with length matching within 2 mm, and keep them at least 5 mm away from noisy digital lines and crystals; reference to a continuous ground plane on layer 2. Place the 50 MHz Ethernet reference clock trace (if used for RMII) within 10 mm of the PHY and avoid stubs. Route USB DP/DM as 90 ohm differential matched within 1 mm, and place the USB common-mode choke within 10 mm of the connector. Keep the 32.768 kHz RTC crystal traces short and surround them with a guard ground, with the crystal load capacitors placed within 2 mm. SWD pins (PD12/PD13 for SWDIO/SWDCLK) must be brought out to a standard 10-pin Cortex Debug header for programming and debug access - leave a 0 ohm jumper on the production PCB for factory programming.
Do not forget to configure GCLK outputs before switching to high-speed peripheral clock sources - SAM E54 boots from a 12 MHz internal oscillator by default and the FLASH NVMCTRL must be reconfigured for 1 wait-state at 120 MHz before raising CPU clock, otherwise code will silently corrupt in Flash read. The dual-panel Flash ECC corrects single-bit errors automatically but flags double-bit errors via an interrupt; enable this interrupt in production firmware to detect radiation/EMC-induced multi-bit faults. Ensure that the NRST (reset) pin has a 10 kohm pull-up and a 100 nF cap to ground for clean power-on reset behaviour. The "AU" industrial temperature grade suffix denotes -40C to +85C - if your design requires -40C to +125C automotive temperature grade, you must select the "AUT" suffix (different date code and price tier).
Thông tin tuân thủ
RoHS compliant per Microchip product page; "AU" industrial grade (-40C to +85C) is not AEC-Q100 qualified - select automotive-grade "AUT" variants for in-vehicle deployment.