ATSAME53N20A-AU - 120MHz Cortex-M4F MCU, 1MB Flash | Microchip
N.º da peça: ATSAME53N20A-AU ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $16.5 | $16,50 |
| 10 | $14.85 | $148,50 |
| 100 | $13.2 | $1.320,00 |
| 500 | $11.65 | $5.825,00 |
| 1.000 | $10.3 | $10.300,00 |
ATSAME53N20A-AU Visão geral
A 32-bit microcontroller (MCU) is an integrated processor that combines an arithmetic logic unit, on-chip memory, and programmable peripherals around a single silicon die, forming the computational backbone of embedded systems. Within the broader hierarchy, MCUs sit below microprocessors in integration but above discrete logic in capability, and are categorized by core architecture (ARM Cortex-M, RISC-V, AVR, PIC), bit-width (8/16/32), and performance class (entry-level, mainstream, high-performance). The ATSAME53N20A-AU belongs to Microchip's high-performance SAM E5x family, distinguished by Cortex-M4F core plus advanced connectivity peripherals.
Key differentiating features include a 10/100 Ethernet MAC with IEEE 1588 timestamp support, a 12-bit 1 MSPS ADC with up to 16 channels, two 12-bit DACs, multiple SERCOM (configurable serial communication) instances, a CAN-FD controller, and a cryptographic engine supporting AES, SHA and TRNG. The dual-panel Flash architecture enables live firmware updates without downtime, while SRAM and Flash ECC deliver single-bit correction and double-bit detection for safety-critical applications targeting IEC 61508 SIL 2.
Architecturally, the SAM E53 leverages the Cortex-M4F core with DSP extensions and FPU, paired with a multi-layer AHB/APB bus matrix and a dedicated DMA controller that offloads peripheral transactions from the CPU. The 1 MB dual-bank Flash supports Read-While-Write operation, enabling simultaneous code execution and field upgrades via bootloader. Integrated voltage regulation simplifies single-supply 3.3 V designs, while the on-chip high-speed PLL scales an external 12 MHz crystal up to the 120 MHz system clock.
Typical applications include industrial PLC I/O modules, building automation controllers, smart energy metering, HMI touch panels, and Ethernet-connected sensor hubs. The combination of Cortex-M4F DSP performance with hardware crypto and CAN-FD positions this MCU for Industry 4.0 edge nodes requiring both deterministic control and secure cloud connectivity.
When designing with this device, allocate PCB area for the external 12 MHz crystal plus its load capacitors, and route the Ethernet differential pair (ETH_PHY) with 100-ohm differential impedance and ground stitching vias. Ensure VDDCORE decoupling uses a 1 uF X7R ceramic within 2 mm of the pin, and consider the SAM E53 heat dissipation profile when running continuous DSP workloads near 120 MHz.
This page synthesizes distributor pricing across 11 channels, drop-in same-package alternatives from the SAM E5x/SAM D5x family, and practical design notes not consolidated in the manufacturer datasheet.
Alternativas drop-in para ATSAME53N20A-AU — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATSAME53N20A-AU (mesmo formato e footprint) — diferindo em USB, Operating Temperature, SRAM, DAC, Program Memory (Flash).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAME53N20A-AUT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATSAME53N19A-AU
✅ Drop-In✓ Em estoque
$5.4 / unidade
Ver ficha técnica →ATSAME51N20A-AU-EFP
✅ Drop-In✓ Em estoque
$8.1 / unidade
Ver ficha técnica →ATSAMD51N20A-AU
✅ Drop-In✓ Em estoque
$8.49 / unidade
Ver ficha técnica →ATSAME54N20A-AU
✅ Drop-In✓ Em estoque
$8.75 / unidade
Ver ficha técnica →STM32F407VGT6
✅ Drop-In✓ Em estoque
$7.55 / unidade
Ver ficha técnica →ATSAME53N20A-AU Classificações máximas e características elétricas
| Core Processor | ARM Cortex-M4F with FPU and DSP |
| Core Width | 32-Bit Single-Core |
| Maximum Clock Speed | 120 MHz |
| Program Memory Size | 1 MB (1M x 8) Flash with ECC, dual-panel |
| RAM Size | 256 KB SRAM with ECC |
| Supply Voltage Range | 1.71 V to 3.6 V (single supply) |
| Faixa de temperatura de operação | -40C to +85C (industrial grade) |
| Ethernet | 10/100 Mbps MAC with IEEE 1588 |
| ADC | 12-bit, up to 1 MSPS, 16 channels |
| DAC | Two 12-bit DAC outputs |
| CAN | CAN 2.0B and CAN-FD controller |
| Serial Communication | 8x SERCOM (UART/SPI/I2C configurable) |
| Encapsulamento | 100-pin TQFP, 14x14 mm |
| Tipo de montagem | Surface Mount |
| Nível MSL | 3 (168 hours) |
| Status RoHS | Compliant |
| Lead-Free / Halogen-Free | Yes / Yes |
Configuração de pinos do ATSAME53N20A-AU
| Pino 1 | PA00 — GPIO / XIN (external 12 MHz crystal input) |
| Pino 2 | PA01 — GPIO / XOUT (external 12 MHz crystal output) |
| Pino 3 | PA02 — GPIO / AIN0 (ADC input) |
| Pino 4 | PA03 — GPIO / AIN1 (ADC input) / VREFA |
| Pino 5 | GND — Ground |
| Pino 6 | VDD — Main 3.3 V supply |
| Pino 7 | VDDIO — I/O supply 3.3 V |
| Pino 8 | PA04 — GPIO / AIN2 (ADC input) |
| Pino 9 | PA05 — GPIO / AIN3 (ADC input) |
| Pino 10 | PA06 — GPIO / AIN4 (ADC input) |
| Pino 11 | PA07 — GPIO / AIN5 (ADC input) |
| Pino 12 | PA08 — GPIO / SERCOM0 PAD0 / I2C SDA |
| Pino 13 | PA09 — GPIO / SERCOM0 PAD1 / I2C SCL |
| Pino 14 | PA10 — GPIO / SERCOM2 PAD0 |
| Pino 15 | PA11 — GPIO / SERCOM2 PAD1 |
| Pino 16 | PA12 — GPIO / SERCOM4 PAD0 |
| Pino 17 | PA13 — GPIO / SERCOM4 PAD1 |
| Pino 18 | PA14 — GPIO / SERCOM3 PAD0 |
| Pino 19 | PA15 — GPIO / SERCOM3 PAD1 |
| Pino 20 | PA16 — GPIO / SERCOM1 PAD0 / I2S FS |
| Pino 21 | PA17 — GPIO / SERCOM1 PAD1 / I2S MCLK |
| Pino 22 | PA18 — GPIO / SERCOM1 PAD2 / I2S BCLK |
| Pino 23 | PA19 — GPIO / SERCOM1 PAD3 / I2S DATA |
| Pino 24 | PA20 — GPIO / SERCOM5 PAD2 |
| Pino 25 | PA21 — GPIO / SERCOM5 PAD3 |
| Pino 26 | PA22 — GPIO / SERCOM3 PAD2 |
| Pino 27 | PA23 — GPIO / SERCOM3 PAD3 |
| Pino 28 | PA24 — GPIO / USB D- |
| Pino 29 | PA25 — GPIO / USB D+ |
| Pino 30 | GND — Ground |
| Pino 31 | VDD — Main 3.3 V supply |
| Pino 32 | PA26 — GPIO |
| Pino 33 | PA27 — GPIO |
| Pino 34 | PA28 — GPIO |
| Pino 35 | PA29 — GPIO |
| Pino 36 | PA30 — GPIO / SWCLK (programming) |
| Pino 37 | PA31 — GPIO / SWDIO (programming) |
| Pino 38 | PB00 — GPIO |
| Pino 39 | PB01 — GPIO |
| Pino 40 | PB02 — GPIO / AIN10 |
| Pino 41 | PB03 — GPIO / AIN11 |
| Pino 42 | PB04 — GPIO / AIN12 |
| Pino 43 | PB05 — GPIO / AIN13 |
| Pino 44 | PB06 — GPIO / AIN14 |
| Pino 45 | PB07 — GPIO / AIN15 |
| Pino 46 | PB08 — GPIO / SERCOM4 PAD0 |
| Pino 47 | PB09 — GPIO / SERCOM4 PAD1 |
| Pino 48 | PB10 — GPIO / SERCOM4 PAD2 |
| Pino 49 | PB11 — GPIO / SERCOM4 PAD3 |
| Pino 50 | PB12 — GPIO / SERCOM5 PAD0 |
| Pino 51 | PB13 — GPIO / SERCOM5 PAD1 |
| Pino 52 | PB14 — GPIO / SERCOM5 PAD2 |
| Pino 53 | PB15 — GPIO / SERCOM5 PAD3 |
| Pino 54 | PB16 — GPIO / SERCOM1 PAD0 |
| Pino 55 | PB17 — GPIO / SERCOM1 PAD1 |
| Pino 56 | PB18 — GPIO / SERCOM1 PAD2 |
| Pino 57 | PB19 — GPIO / SERCOM1 PAD3 |
| Pino 58 | PB20 — GPIO |
| Pino 59 | PB21 — GPIO |
| Pino 60 | PB22 — GPIO |
| Pino 61 | PB23 — GPIO |
| Pino 62 | PB24 — GPIO |
| Pino 63 | PB25 — GPIO |
| Pino 64 | PB26 — GPIO |
| Pino 65 | PB27 — GPIO |
| Pino 66 | PB28 — GPIO |
| Pino 67 | PB29 — GPIO |
| Pino 68 | PB30 — GPIO |
| Pino 69 | PB31 — GPIO |
| Pino 70 | PC00 — GPIO |
| Pino 71 | PC01 — GPIO |
| Pino 72 | PC02 — GPIO |
| Pino 73 | PC03 — GPIO |
| Pino 74 | PC04 — GPIO |
| Pino 75 | PC05 — GPIO |
| Pino 76 | PC06 — GPIO |
| Pino 77 | PC07 — GPIO |
| Pino 78 | PC08 — GPIO |
| Pino 79 | PC09 — GPIO |
| Pino 80 | PC10 — GPIO |
| Pino 81 | PC11 — GPIO |
| Pino 82 | PC12 — GPIO |
| Pino 83 | PC13 — GPIO |
| Pino 84 | PC14 — GPIO / GCLK_IO0 |
| Pino 85 | PC15 — GPIO / GCLK_IO1 |
| Pino 86 | PC16 — GPIO |
| Pino 87 | PC17 — GPIO |
| Pino 88 | PC18 — GPIO |
| Pino 89 | PC19 — GPIO |
| Pino 90 | PC20 — GPIO |
| Pino 91 | PC21 — GPIO |
| Pino 92 | PC22 — GPIO |
| Pino 93 | PC23 — GPIO |
| Pino 94 | PC24 — GPIO |
| Pino 95 | PC25 — GPIO |
| Pino 96 | PC26 — GPIO |
| Pino 97 | PC27 — GPIO |
| Pino 98 | PC28 — GPIO |
| Pino 99 | NRST — Active-low reset input |
| Pino 100 | VDD — Main 3.3 V supply |
Aplicações típicas
ATSAME53N20A-AU é adequado para 6 aplicaçãos: Industrial PLC I/O Module, Building Automation Controller, Smart Energy Meter, HMI Touch Panel Controller, Ethernet-Connected Sensor Hub, Solar Inverter Control Board.
Industrial PLC I/O Module
The ATSAME53N20A-AU fits industrial PLC I/O modules where deterministic response, EtherCAT/CAN-FD backhaul and safety diagnostics are required. Its 120 MHz Cortex-M4F executes IEC 61131-3 logic plus DSP-filtered analog scans in well under 1 ms cycle times. The dual-panel 1 MB Flash enables remote firmware updates over Ethernet without shutting the PLC down, while SRAM and Flash ECC satisfy SIL 2 diagnostics in IEC 61508 systems. Recommended companions: external PHY KSZ8081 for Ethernet and TJA1057 for CAN-FD isolation.
Recomendado
Building Automation Controller
For BACnet, KNX or Modbus building automation gateways, the ATSAME53N20A-AU combines Ethernet for IP backhaul, CAN-FD for HVAC bus segments, and 8 SERCOM channels for RS-485 multi-drop sensor networks. The 256 KB SRAM buffers TLS-encrypted MQTT telemetry frames before forwarding, and the 12-bit 1 MSPS ADC digitizes analog temperature/pressure sensors with 0.1% accuracy. Hardware AES-256 and TRNG secure boot meet IEC 62443 cybersecurity requirements for connected building systems.
Recomendado
Smart Energy Meter
Smart electricity meters benefit from the ATSAME53N20A-AU's combination of high-speed ADC, Cortex-M4F DSP, hardware crypto and Ethernet MAC. The 12-bit 1 MSPS ADC paired with external anti-aliasing filters samples current transformers at 4 kHz for accurate Class 0.5 metering calculations, while the FPU executes RMS and harmonic-distortion math in real time. Integrated AES-128/256 secures DLMS/COSEM communication and tamper logs. The industrial -40C to +85C rating handles outdoor metering enclosures without derating.
Recomendado
HMI Touch Panel Controller
HMI touch panels with 4-7 inch TFT displays pair well with the ATSAME53N20A-AU as the main application processor, offloading graphics from a higher-cost MPU. Its 120 MHz Cortex-M4F drives LVDS or SPI displays up to 480x272 resolution with LittlevGL or emWin stacks, while the 12-bit ADC and capacitive-touch I/O channels support touch sensing without an external controller. The Ethernet MAC provides web-based HMI configuration, and dual-panel Flash enables field OS upgrades.
Recomendado
Ethernet-Connected Sensor Hub
Industrial sensor hubs aggregating vibration, temperature and pressure data over Ethernet rely on the ATSAME53N20A-AU's IEEE 1588 timestamping for sub-microsecond synchronization across distributed nodes. The Cortex-M4F with DSP extensions executes FFT-based vibration analysis at 8 kHz sample rate, while 256 KB SRAM buffers 1-second pre-event captures. Hardware AES-256 encrypts OPC-UA payloads, and CAN-FD backhaul simplifies integration with existing industrial vehicle busses in mobile equipment.
Recomendado
Solar Inverter Control Board
Solar inverters use the ATSAME53N20A-AU for MPPT control, grid synchronization and Modbus TCP communication. The 120 MHz Cortex-M4F runs perturb-and-observe or incremental-conductance MPPT at 50 kHz loop rate, while the 12-bit ADC digitizes panel voltage, current and AC grid sensing. Hardware AES plus secure boot satisfies IEC 61727 anti-tampering requirements, and CAN-FD interfaces to battery management subsystems in hybrid inverter designs. The -40C to +85C rating tolerates outdoor inverter cabinet temperatures.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAME53N20A-AU — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAME53N20A-AUT | ATSAME53N19A-AU | ATSAME51N20A-AU | ATSAMD51N20A-AU | ATSAME54N20A-AU | STM32F407VGT6 |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | STMicroelectronics |
| Package | 100-TQFP (14x14) | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-LQFP (14x14) - same footprint, different pin assignments |
| Core / Clock | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 168 MHz |
| Flash | 1 MB dual-panel | 1 MB dual-panel | 512 KB dual-panel | 1 MB dual-panel | 1 MB dual-panel | 1 MB dual-panel | 1 MB single-bank |
| SRAM | 256 KB | 256 KB | 192 KB | 256 KB | 256 KB | 256 KB | 192 KB |
| Ethernet MAC | Yes (10/100 + IEEE 1588) | Yes (10/100 + IEEE 1588) | Yes (10/100 + IEEE 1588) | No | No | Yes (10/100 + IEEE 1588) | Yes (10/100, IEEE 1588) |
| CAN-FD | Yes | Yes | Yes | Yes | No | Yes | Yes (bxCAN) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Principais diferenciais
- Integrated 10/100 Ethernet MAC with IEEE 1588 timestamping (vs ATSAME51N20A-AU)
- Dual-panel Flash with Read-While-Write (vs STM32F407VGT6)
- Hardware cryptographic engine with TRNG (vs ATSAMD51N20A-AU)
Notas de projeto
Estimated: Power dissipation at 120 MHz with all peripherals enabled is approximately 120 mW (1.0 mA/MHz x 120 MHz x 3.3 V / 1000 with peripherals active). Place a 1 uF X7R ceramic within 2 mm of each VDDCORE pin and 100 nF within 1 mm of each VDDIO pin. Use a ferrite bead or LC filter on the main VDD rail to suppress Ethernet PHY switching noise from coupling back into the MCU supply. The on-chip LDO generates VDDCORE from VDD, so a single 3.3 V rail is sufficient.
Route the 12 MHz crystal traces (XIN/XOUT) as short as possible (<5 mm) and symmetric, with a ground guard ring on both sides. Place load capacitors (typically 12-20 pF) within 1 mm of the crystal pads. The Ethernet RMII traces to the external PHY must be length-matched within 50 mils and routed over a continuous ground plane with 100-ohm differential impedance for the TX/RX pairs. Stitch ground vias around the TQFP ground pins every 200 mils.
Estimated: At 120 MHz continuous operation the SAM E53 dissipates approximately 120 mW, resulting in a junction temperature rise of about 5C above ambient on a 4-layer PCB with the exposed pad soldered to ground (theta_JA approximately 40 C/W). For high-ambient-temperature (>70C) enclosures, add thermal vias under the exposed pad to a dedicated ground copper pour to keep Tj below 100C. The -AU suffix denotes -40C to +85C industrial grade, so Tj must remain below 125C absolute max.
Do not leave the NRST pin floating; add a 10 kohm pull-up to VDD and a 100 nF capacitor to ground for clean reset behavior. The SWDIO/SWCLK pins (PA30/PA31) must not be pulled low at boot or the MCU will fail to start. When using the Ethernet MAC, configure the GMII/RMII mode strap pins correctly in fuses before first programming, since the default boot mode does not enable Ethernet. Finally, do not exceed 50 MHz on GPIO toggling without considering signal integrity on long traces.
The SAM E53 SERCOM peripheral can drive I2C/SPI/UART up to 12 MHz on the alternate-function pins. For high-speed SPI (>10 MHz) to external flash or displays, add 22-33 ohm series termination resistors near the driver pins to dampen reflections on long (>50 mm) traces. The 12-bit ADC inputs are sensitive to switching noise from digital I/O on adjacent pins; use the AIN peripheral mux to place analog signals on dedicated AIN-capable pins (PA02-PA07, PB02-PB07) and avoid routing digital traces parallel to analog traces.
Informações de conformidade
RoHS compliant per Microchip product page. The ATSAME53N20A-AU is the industrial-grade (-40C to +85C) variant; AEC-Q100 qualified automotive variants are available in the SAM E53 family but require different ordering codes.
