ATSAME54N19A-AU - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
MPN: ATSAME54N19A-AU ✓ Hoạt độngATSAME54N19A-AU Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals. The Cortex-M4F belongs to ARM's Cortex-M family of energy-efficient processors designed for embedded deterministic real-time control. Within the SAM E54 series, the ATSAME54N19A-AU sits in the Cortex-M4F -> Cortex-M -> 32-bit MCU -> embedded processor hierarchy, targeting industrial HMI, connectivity gateways, and audio processing applications.
Key features include the Cortex-M4F core with single-precision FPU and DSP extensions, a high-speed on-chip 12-bit 1 Msps ADC, USB 2.0 Full-Speed with on-chip PHY, a 100 MHz system bus, multiple SERCOM channels configurable as UART/SPI/I2C, an I2S interface for digital audio, a 16-bit HSMCI for SD card storage, and a Crypto Accelerator (TRNG, AES, SHA). The 100-TQFP package provides ample I/O for parallel TFT displays and external memory buses.
The SAM E54 architecture uses a multi-layer AHB bus matrix connecting the CPU, DMA controllers, and peripherals, allowing concurrent access with deterministic latency. The dual-panel Flash subsystem enables live firmware updates and EEPROM emulation, while the SRAM with ECC supports safety-critical applications where single-bit errors must be corrected automatically.
Typical applications include industrial HMI panels with TFT displays, smart energy metering, IoT edge nodes with USB connectivity, digital audio streaming devices using I2S, and automotive aftermarket infotainment controllers. Designers value the on-chip FPU for sensor-fusion algorithms and the integrated crypto block for secure boot implementations.
When designing with the ATSAME54N19A-AU, ensure 100 nF and 4.7 uF decoupling caps are placed near each VDD pin pair, and that the 12 MHz crystal or external clock meets the accuracy requirements specified in the SAM E54 datasheet. For USB applications, the DP/DM trace impedance must be tuned to 90 ohms differential.
Bộ thay thế dễ dàng lắp đặt cho ATSAME54N19A-AU — 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 ATSAME54N19A-AU (cùng hình factor và footprint) — khác nhau ở USB, ADC, Operating Temperature, SRAM, Core.
ATSAME54N19A-AF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME54N20A-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME54N19A-AUT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME54P19A-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME54P20A-AU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAME51N19A-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME54N19A-AU Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4F with FPU and DSP extensions |
| Tần số xung maksimum | 120 MHz |
| Program Memory (Flash) | 512 KB (dual-panel with ECC) |
| SRAM | 192 KB with ECC |
| Supply Voltage (VDD) | 1.62 V to 3.6 V |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Hộp | 100-pin TQFP (14x14 mm) |
| Kiểu lắp đặt | Surface Mount |
| ADC | 12-bit, up to 1 Msps, 16 channels |
| USB | USB 2.0 Full-Speed with on-chip PHY |
| SERCOM Channels | 8 (configurable as UART/SPI/I2C) |
| I2S Audio Interface | Yes |
| Crypto Accelerator | TRNG, AES-256, SHA-256, RSA |
| External Memory Bus | Yes (EBI, 16-bit) |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 3 |
Cấu hình chân ATSAME54N19A-AU
| Chân 1 | PA03 — General I/O / ADC AIN[1] |
| Chân 2 | PA04 — General I/O / ADC AIN[2] |
| Chân 3 | PA05 — General I/O / ADC AIN[3] |
| Chân 4 | PA06 — General I/O / ADC AIN[4] |
| Chân 5 | PA07 — General I/O / ADC AIN[5] |
| Chân 6 | VDDIO — I/O supply voltage 1.62V-3.6V |
| Chân 7 | VDD — Core voltage regulator input |
| Chân 8 | GND — Ground |
| Chân 9 | PA08 — General I/O / NMI |
| Chân 10 | PA09 — General I/O |
| Chân 11 | PA10 — General I/O |
| Chân 12 | PA11 — General I/O |
| Chân 13 | PA12 — General I/O |
| Chân 14 | PA13 — General I/O |
| Chân 15 | PA14 — General I/O |
| Chân 16 | PA15 — General I/O |
| Chân 17 | PA16 — General I/O |
| Chân 18 | PA17 — General I/O |
| Chân 19 | PA18 — General I/O |
| Chân 20 | PA19 — General I/O |
| Chân 21 | PA20 — General I/O |
| Chân 22 | PA21 — General I/O |
| Chân 23 | PA22 — General I/O |
| Chân 24 | PA23 — General I/O |
| Chân 25 | PA24 — General I/O / USB DP |
| Chân 26 | PA25 — General I/O / USB DM |
| Chân 27 | GND — Ground |
| Chân 28 | VDDIO — I/O supply voltage |
| Chân 29 | PB00 — General I/O |
| Chân 30 | PB01 — General I/O |
| Chân 31 | PB02 — General I/O |
| Chân 32 | PB03 — General I/O |
| Chân 33 | PB04 — General I/O |
| Chân 34 | PB05 — General I/O |
| Chân 35 | PB06 — General I/O |
| Chân 36 | PB07 — General I/O |
| Chân 37 | PB08 — General I/O |
| Chân 38 | PB09 — General I/O |
| Chân 39 | PB10 — General I/O |
| Chân 40 | PB11 — General I/O |
| Chân 41 | PB12 — General I/O |
| Chân 42 | PB13 — General I/O |
| Chân 43 | PB14 — General I/O |
| Chân 44 | PB15 — General I/O |
| Chân 45 | PB16 — General I/O |
| Chân 46 | PB17 — General I/O |
| Chân 47 | PB18 — General I/O |
| Chân 48 | PB19 — General I/O |
| Chân 49 | PB20 — General I/O |
| Chân 50 | PB21 — General I/O |
| Chân 51 | PB22 — General I/O |
| Chân 52 | PB23 — General I/O |
| Chân 53 | PB24 — General I/O |
| Chân 54 | PB25 — General I/O |
| Chân 55 | VDDIO — I/O supply voltage |
| Chân 56 | GND — Ground |
| Chân 57 | PC00 — General I/O |
| Chân 58 | PC01 — General I/O |
| Chân 59 | PC02 — General I/O |
| Chân 60 | PC03 — General I/O |
| Chân 61 | PC04 — General I/O |
| Chân 62 | PC05 — General I/O |
| Chân 63 | PC06 — General I/O |
| Chân 64 | PC07 — General I/O |
| Chân 65 | PC08 — General I/O |
| Chân 66 | PC09 — General I/O |
| Chân 67 | PC10 — General I/O |
| Chân 68 | PC11 — General I/O |
| Chân 69 | PC12 — General I/O |
| Chân 70 | PC13 — General I/O |
| Chân 71 | PC14 — General I/O / XOSC1 |
| Chân 72 | PC15 — General I/O / XOSC2 |
| Chân 73 | PC16 — General I/O |
| Chân 74 | PC17 — General I/O |
| Chân 75 | PC18 — General I/O |
| Chân 76 | PC19 — General I/O |
| Chân 77 | PC20 — General I/O |
| Chân 78 | PC21 — General I/O |
| Chân 79 | PC22 — General I/O |
| Chân 80 | PC23 — General I/O |
| Chân 81 | PC24 — General I/O |
| Chân 82 | PC25 — General I/O |
| Chân 83 | PC26 — General I/O |
| Chân 84 | PC27 — General I/O |
| Chân 85 | PC28 — General I/O |
| Chân 86 | PC29 — General I/O |
| Chân 87 | PC30 — General I/O |
| Chân 88 | PC31 — General I/O |
| Chân 89 | PD00 — General I/O |
| Chân 90 | PD01 — General I/O |
| Chân 91 | PD02 — General I/O |
| Chân 92 | PD03 — General I/O |
| Chân 93 | PD04 — General I/O |
| Chân 94 | PD05 — General I/O |
| Chân 95 | PD06 — General I/O |
| Chân 96 | PD07 — General I/O |
| Chân 97 | PD08 — General I/O |
| Chân 98 | PD09 — General I/O |
| Chân 99 | GND — Ground |
| Chân 100 | VDDIO — I/O supply voltage |
Ứng dụng tiêu biểu
ATSAME54N19A-AU phù hợp cho 6 Áp dụngs: Industrial HMI Touch Panel, Smart Energy Meter with Crypto Security, USB Audio Streaming Device, IoT Edge Gateway with BLE Bridge, Digital Audio Mixer Console, Automotive Aftermarket Telematics.
Industrial HMI Touch Panel
The ATSAME54N19A-AU drives TFT LCD panels up to WVGA resolution through its external memory interface (EBI) while the 120 MHz Cortex-M4F with FPU runs LVGL/EmWin graphics libraries smoothly. The 16-channel 12-bit ADC handles resistive touch sensing with hardware averaging, and 84 GPIO pins provide ample I/O for keypad scanning and LED indicators. The integrated USB Full-Speed PHY enables firmware updates and HMI configuration via USB drive. Compared with Cortex-M0 designs, the FPU accelerates Bezier curve rendering and image scaling for more responsive industrial operator interfaces.
Được đề xuất
Smart Energy Meter with Crypto Security
The ATSAME54N19A-AU measures voltage and current via its 12-bit 1 Msps ADC for Class 1 energy metering accuracy, while the Cortex-M4F DSP extensions perform real-time FFT harmonic analysis. The hardware AES-256 and SHA-256 accelerators secure DLMS/COSEM communication over the SERCOM UART, and the TRNG generates keys for secure boot. The on-chip USB allows field technicians to download consumption logs without disassembly. Wide 1.62 V to 3.6 V supply tolerates battery-backed RTC operation during power outages.
Được đề xuất
USB Audio Streaming Device
The ATSAME54N19A-AU streams 24-bit 96 kHz audio through its I2S interface while presenting a USB Audio Class 1.0 device to the host. The integrated USB Full-Speed PHY and on-chip 48 MHz PLL eliminate the external oscillator and transceiver, reducing BOM cost in USB DAC and headphone amplifier designs. The Cortex-M4F FPU runs biquad filters and 3D spatial audio effects at low latency, while the dual-panel Flash allows live firmware updates over USB without audio dropout. Sufficient SRAM buffers multiple audio frames for jitter-free playback.
Được đề xuất
IoT Edge Gateway with BLE Bridge
The ATSAME54N19A-AU acts as an IoT edge node aggregating data from Bluetooth Low Energy sensors via an external module connected through SERCOM UART, then forwarding processed data to the cloud over USB or Ethernet. The hardware crypto block accelerates TLS handshakes, while 192 KB SRAM holds local MQTT buffers and OTA staging area. The eight SERCOM channels permit multiple sensor interfaces simultaneously without pin conflicts, supporting Modbus, SPI flash, and I2C sensors in parallel.
Được đề xuất
Digital Audio Mixer Console
The ATSAME54N19A-AU mixes multiple I2S audio streams from external codecs, applies DSP effects via the Cortex-M4F single-precision FPU, and outputs to a USB audio interface for DAW recording. The dual-panel Flash stores multiple effect presets with zero-downtime switching, while the 192 KB SRAM hosts 32-bit floating-point audio buffers. The on-chip 12-bit ADC reads potentiometer positions for hardware controls at sample rates above 1 kHz. This MCU replaces legacy DSP chips in compact 4-channel mixers.
Được đề xuất
Automotive Aftermarket Telematics
The ATSAME54N19A-AU powers OBD-II dongles and aftermarket telematics units, reading vehicle CAN bus data via an external transceiver interfaced through SERCOM. The crypto accelerator secures OTA firmware updates, while USB enables diagnostic log download to a laptop. The 100-TQFP package withstands automotive cabin temperatures when the -AF (extended) variant is selected; the -AU industrial variant suits non-critical fleet management. Wide 3.3 V supply tolerance handles 12 V battery transients with external regulation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAME54N19A-AU — 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 | ATSAME54N19A-AF | ATSAME54N20A-AU | ATSAME54N19A-AUT | ATSAME54P19A-AU | ATSAME51N19A-AU |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TQFP (14x14) | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same |
| Core | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz |
| Flash | 512 KB | 512 KB | 1 MB (+100%) | 512 KB | 512 KB | 512 KB |
| SRAM | 192 KB | 192 KB | 256 KB (+33%) | 192 KB | 192 KB | 192 KB |
| Operating Temperature | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| USB | USB 2.0 FS with on-chip PHY | USB 2.0 FS with on-chip PHY | USB 2.0 FS with on-chip PHY | USB 2.0 FS with on-chip PHY | USB 2.0 FS with on-chip PHY | USB 2.0 FS with on-chip PHY |
| Crypto Accelerator | AES/SHA/TRNG | AES/SHA/TRNG | AES/SHA/TRNG | AES/SHA/TRNG | AES/SHA/TRNG | AES/SHA/TRNG |
| I2S Audio | Yes | Yes | Yes | Yes | Yes | No (-20%) |
Bảo phân biệt quan trọng
- Integrated USB 2.0 Full-Speed PHY (vsATSAME51N19A-AU)
- Dual-Panel Flash with ECC (vsATSAME54N19A-AUT)
- 512 KB Flash at 120 MHz Cortex-M4F (vsATSAME53N20A-AU)
Ghi chú thiết kế
Decoupling is critical for the ATSAME54N19A-AU given its 120 MHz operation. Place a 100 nF X7R ceramic capacitor and a 4.7 uF X5R bulk capacitor within 3 mm of each VDDIO/VDD pin pair on the 100-TQFP package. The internal 1.2 V core LDO requires a 1 uF capacitor on the VDDLC pin. Failure to provide adequate decoupling can cause Flash read errors at high clock frequencies and ADC measurement drift. Use multiple vias to a dedicated ground pour for return currents.
Do not confuse the ATSAME54N19A-AU (industrial -40C to +85C) with the ATSAME54N19A-AF (extended -40C to +125C) when sourcing for automotive or under-hood applications. Both share the same 100-TQFP footprint but the -AU grade will fail reliability tests above 85C. Also verify the SAM E54 datasheet revision for the specific GPN (General Purpose Nomenclature) suffix to ensure your firmware matches the exact memory layout and errata.
For USB applications, the DP (PA24) and DM (PA25) traces must be routed as a 90-ohm differential pair with matched lengths within 150 mil, with a continuous ground reference plane beneath. Place the 22-ohm series termination resistors within 4 mm of the MCU pins. The crystal oscillator traces (XIN/XOUT) should be kept short and surrounded by ground pour to minimize EMI pickup. Use a 4-layer PCB stackup with dedicated power and ground planes for best EMC performance.
The 100-TQFP package has a typical theta_JA of approximately 50 C/W, allowing the ATSAME54N19A-AU to operate up to 120 MHz without a heatsink at industrial temperatures. At sustained 120 MHz with all peripherals active, internal power dissipation is around 200 mW, producing a 10C temperature rise above ambient. For high-temperature environments above 70C ambient, consider adding thermal vias under the exposed pad and reducing clock speed to 80 MHz for headroom.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose ATSAME54N19A-AF (extended temp) or other -CF variants for automotive applications. Lead-free and halogen-free per Microchip material declaration.
