ATSAME54N19A-AF - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
N.º da peça: ATSAME54N19A-AF ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $8.62 | $8,62 |
| 10 | $7.76 | $77,60 |
| 100 | $6.91 | $691,00 |
| 500 | $6.27 | $3.135,00 |
| 1.000 | $5.49 | $5.490,00 |
ATSAME54N19A-AF Visão geral
A Cortex-M4F microcontroller (MCU) is a 32-bit processor core licensed from Arm that combines the M4 instruction set with a hardware single-precision Floating Point Unit, an MPU for memory protection, and optional DSP extensions. It sits in the middle of the Arm Cortex-M family between the M3 (no FPU) and M7 (superscalar with double-precision FPU). Within the broader taxonomy: Cortex-M4F MCU -> 32-bit microcontroller -> microcontroller -> embedded processor -> semiconductor. The SAM E54 specifically belongs to the Cortex-M4F-based high-performance tier with extensive connectivity peripherals.
Key features include 120 MHz CPU clock, 512 KB Flash with error correction, 192 KB SRAM, full-speed USB 2.0 with on-chip PHY, dual CAN-FD controllers, Ethernet MAC (10/100), 10/100-Mbps I2S audio interface, SD/MMC host, and up to six SERCOM (serial communication) modules configurable as UART/SPI/I2C. The device also integrates a 12-bit 1 MSPS ADC, two 12-bit DACs, four analog comparators, and a high-speed Host/Client USB 2.0 port. An 8-channel Event System, 16-bit timers, and a TCC (Timer/Counter for Control) supporting motor-control PWM make it suitable for closed-loop control.
The ATSAME54N19A-AF uses the Cortex-M4F core's branch prediction, single-cycle MAC, and SIMD instructions to deliver 150 Dhrystone MIPS and 1.25 DMIPS/MHz. The dual-panel Flash allows read-while-write (RWW) for safe firmware updates, and ECC on both Flash and SRAM mitigates soft-error risk in industrial and automotive environments. TrustZone-M is not present on this device (it is on the Cortex-M33 SAM L11/E11 families), but a separate secure boot and cryptographic accelerator (AES, SHA, TRNG) is integrated.
Typical applications include industrial PLCs and HMIs, automotive body and comfort modules, smart metering, building automation gateways, motor control BLDC drivers, USB-connected medical peripherals, and Human-Machine Interface panels with TFT displays. The wide operating temperature range of -40C to +125C suits automotive and industrial enclosures.
When designing with this device, pay attention to decoupling: place 100 nF X7R ceramics adjacent to every VDD pin pair and a bulk 4.7 uF on each main rail. The integrated Ethernet MAC requires an external PHY (e.g., KSZ8081) and 49.9 ohm 1% termination on the differential pair. Firmware should enable the watchdog timer and use the dual-panel Flash for A/B OTA updates.
This page synthesizes distributor pricing, automotive-grade drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.
Alternativas drop-in para ATSAME54N19A-AF — 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 ATSAME54N19A-AF (mesmo formato e footprint) — diferindo em USB, Operating Temperature, Core, SRAM, DAC.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAME54N19A-AFT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATSAME54N20A-AF
✅ Drop-In✓ Em estoque
$8.55 / unidade
Ver ficha técnica →ATSAME54N19A-AFVAO
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATSAME53N19A-AF
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATSAME51N19A-AF
✅ Drop-In✓ Em estoque
$5.55 / unidade
Ver ficha técnica →ATSAMD51N19A-AF
✅ Drop-In✓ Em estoque
$5.41 / unidade
Ver ficha técnica →ATSAME54N19A-AF Classificações máximas e características elétricas
| Core | ARM Cortex-M4F with single-precision FPU |
| CPU Architecture | 32-bit RISC with MPU and DSP extensions |
| Maximum CPU Clock | 120 MHz |
| Performance | 150 DMIPS, 1.25 DMIPS/MHz |
| Flash Memory | 512 KB (dual-panel, with ECC) |
| SRAM | 192 KB with ECC |
| Operating Voltage | 1.71 V to 3.6 V |
| Temperatura de operação | -40C to +125C (automotive grade) |
| Encapsulamento | 100-pin TQFP (14x14 mm) |
| Tipo de montagem | Surface Mount (Gull-wing) |
| ADC | 12-bit, up to 1 MSPS |
| DAC | 2x 12-bit |
| USB | USB 2.0 Full-Speed Host/Device with on-chip PHY |
| CAN | 2x CAN-FD controllers |
| Ethernet | 10/100 Mbps MAC (requires external PHY) |
| SERCOM | Up to 6 (configurable UART/SPI/I2C) |
| Nível MSL | 3 (168 hours) |
| Status RoHS | Compliant |
Configuração de pinos do ATSAME54N19A-AF
| Pino 1 | PD0 — GPIO / SERCOM3 ALT function |
| Pino 2 | PD1 — GPIO / SERCOM3 ALT function |
| Pino 3 | PD2 — GPIO / SERCOM3 ALT function |
| Pino 4 | PD3 — GPIO / SERCOM3 ALT function |
| Pino 5 | VDDIO — I/O supply voltage |
| Pino 6 | GND — Ground |
| Pino 7 | PD4 — GPIO / SERCOM3 ALT function |
| Pino 8 | PD5 — GPIO / SERCOM3 ALT function |
| Pino 9 | PD6 — GPIO / SERCOM3 ALT function |
| Pino 10 | PD7 — GPIO / SERCOM3 ALT function |
| Pino 11 | PD8 — GPIO / SERCOM3 ALT function |
| Pino 12 | PD9 — GPIO / SERCOM3 ALT function |
| Pino 13 | PD10 — GPIO / SERCOM3 ALT function |
| Pino 14 | PD11 — GPIO / SERCOM3 ALT function |
| Pino 15 | PD12 — GPIO / SERCOM3 ALT function |
| Pino 16 | GND — Ground |
| Pino 17 | VDDIO — I/O supply voltage |
| Pino 18 | PD13 — GPIO / SERCOM3 ALT function |
| Pino 19 | PD14 — GPIO / SERCOM3 ALT function |
| Pino 20 | PD15 — GPIO / SERCOM3 ALT function |
| Pino 21 | PA0 — GPIO / SERCOM0 ALT function |
| Pino 22 | PA1 — GPIO / SERCOM0 ALT function |
| Pino 23 | PA2 — GPIO / SERCOM0 ALT function |
| Pino 24 | PA3 — GPIO / SERCOM0 ALT function |
| Pino 25 | GND — Ground |
| Pino 26 | VDD — Main supply voltage (1.71-3.6V) |
| Pino 27 | PA4 — GPIO / SERCOM0 ALT function |
| Pino 28 | PA5 — GPIO / SERCOM0 ALT function |
| Pino 29 | PA6 — GPIO / SERCOM0 ALT function |
| Pino 30 | PA7 — GPIO / SERCOM0 ALT function |
| Pino 31 | PA8 — GPIO / SERCOM0 ALT function |
| Pino 32 | PA9 — GPIO / SERCOM0 ALT function |
| Pino 33 | PA10 — GPIO / SERCOM0 ALT function |
| Pino 34 | PA11 — GPIO / SERCOM0 ALT function |
| Pino 35 | GND — Ground |
| Pino 36 | VDD — Main supply voltage |
| Pino 37 | PA12 — GPIO / SERCOM0 ALT function |
| Pino 38 | PA13 — GPIO / SERCOM0 ALT function |
| Pino 39 | PA14 — GPIO / SERCOM0 ALT function |
| Pino 40 | PA15 — GPIO / SERCOM0 ALT function |
| Pino 41 | PA16 — GPIO / SERCOM1 ALT function |
| Pino 42 | PA17 — GPIO / SERCOM1 ALT function |
| Pino 43 | PA18 — GPIO / SERCOM1 ALT function |
| Pino 44 | PA19 — GPIO / SERCOM1 ALT function |
| Pino 45 | GND — Ground |
| Pino 46 | VDDIO — I/O supply voltage |
| Pino 47 | PA20 — GPIO / SERCOM1 ALT function |
| Pino 48 | PA21 — GPIO / SERCOM1 ALT function |
| Pino 49 | PA22 — GPIO / SERCOM1 ALT function |
| Pino 50 | PA23 — GPIO / SERCOM1 ALT function |
| Pino 51 | PA24 — GPIO / SERCOM2 ALT function |
| Pino 52 | PA25 — GPIO / SERCOM2 ALT function |
| Pino 53 | PA26 — GPIO / SERCOM2 ALT function |
| Pino 54 | PA27 — GPIO / SERCOM2 ALT function |
| Pino 55 | GND — Ground |
| Pino 56 | VDD — Main supply voltage |
| Pino 57 | PA28 — GPIO / SERCOM2 ALT function |
| Pino 58 | PA29 — GPIO / SERCOM2 ALT function |
| Pino 59 | PA30 — GPIO / SERCOM2 ALT function |
| Pino 60 | PA31 — GPIO / SERCOM2 ALT function |
| Pino 61 | PB0 — GPIO / SERCOM4 ALT function |
| Pino 62 | PB1 — GPIO / SERCOM4 ALT function |
| Pino 63 | PB2 — GPIO / SERCOM4 ALT function |
| Pino 64 | PB3 — GPIO / SERCOM4 ALT function |
| Pino 65 | GND — Ground |
| Pino 66 | VDDIO — I/O supply voltage |
| Pino 67 | PB4 — GPIO / SERCOM4 ALT function |
| Pino 68 | PB5 — GPIO / SERCOM4 ALT function |
| Pino 69 | PB6 — GPIO / SERCOM4 ALT function |
| Pino 70 | PB7 — GPIO / SERCOM4 ALT function |
| Pino 71 | PB8 — GPIO / SERCOM4 ALT function |
| Pino 72 | PB9 — GPIO / SERCOM4 ALT function |
| Pino 73 | PB10 — GPIO / SERCOM4 ALT function |
| Pino 74 | PB11 — GPIO / SERCOM4 ALT function |
| Pino 75 | GND — Ground |
| Pino 76 | VDD — Main supply voltage |
| Pino 77 | PB12 — GPIO / SERCOM5 ALT function |
| Pino 78 | PB13 — GPIO / SERCOM5 ALT function |
| Pino 79 | PB14 — GPIO / SERCOM5 ALT function |
| Pino 80 | PB15 — GPIO / SERCOM5 ALT function |
| Pino 81 | PB16 — GPIO / SERCOM5 ALT function |
| Pino 82 | PB17 — GPIO / SERCOM5 ALT function |
| Pino 83 | PB18 — GPIO / SERCOM5 ALT function |
| Pino 84 | PB19 — GPIO / SERCOM5 ALT function |
| Pino 85 | GND — Ground |
| Pino 86 | VDDIO — I/O supply voltage |
| Pino 87 | PB20 — GPIO / SERCOM5 ALT function |
| Pino 88 | PB21 — GPIO / SERCOM5 ALT function |
| Pino 89 | PB22 — GPIO / SERCOM5 ALT function |
| Pino 90 | PB23 — GPIO / SERCOM5 ALT function |
| Pino 91 | PB24 — GPIO / SERCOM4 ALT function |
| Pino 92 | PB25 — GPIO / SERCOM4 ALT function |
| Pino 93 | PC0 — GPIO / SERCOM6 ALT function |
| Pino 94 | PC1 — GPIO / SERCOM6 ALT function |
| Pino 95 | GND — Ground |
| Pino 96 | VDD — Main supply voltage |
| Pino 97 | PC2 — GPIO / SERCOM6 ALT function |
| Pino 98 | PC3 — GPIO / SERCOM6 ALT function |
| Pino 99 | NRST — External reset input (active low) |
| Pino 100 | VBAT — Battery backup supply for RTC |
Aplicações típicas
ATSAME54N19A-AF é adequado para 8 aplicaçãos: Industrial PLC Controllers, Automotive Body and Gateway Modules, BLDC Motor Control, Connected IoT Edge Gateways, Human-Machine Interface (HMI) Panels, Smart Energy Metering, USB Medical Device Peripherals, Building Automation Controllers.
Industrial PLC Controllers
The ATSAME54N19A-AF fits industrial PLC controllers because its 120 MHz Cortex-M4F core executes IEC 61131-3 logic scan loops in well under 1 ms, while the dual 12-bit 1 MSPS ADC digitizes analog sensor inputs (4-20 mA, 0-10 V) with high resolution. The 192 KB SRAM accommodates substantial ladder-logic runtime plus Modbus/TCP buffers when paired with the integrated 10/100 Ethernet MAC and external PHY. Six configurable SERCOM interfaces handle multi-drop RS-485 and SPI sensor networks. The -40C to +125C automotive/industrial temperature rating allows deployment inside unheated control cabinets without derating.
Recomendado
Automotive Body and Gateway Modules
The ATSAME54N19A-AF is well suited for automotive body controllers and central gateway modules because it integrates two CAN-FD controllers for chassis/body network communication at 2 Mbps and beyond, plus a 10/100 Ethernet MAC for automotive Ethernet backbone connectivity. The 512 KB dual-panel Flash with ECC supports secure OTA firmware updates across multiple ECUs, while the -40C to +125C temperature range matches under-hood and cabin requirements. The integrated USB 2.0 Full-Speed PHY enables diagnostic link via OBD-II connector. Cryptographic accelerators (AES, SHA, TRNG) secure boot and authenticated diagnostics.
Recomendado
BLDC Motor Control
The ATSAME54N19A-AF drives BLDC and PMSM motors using its TCC (Timer/Counter for Control) peripheral which generates complementary PWM with dead-time insertion, hardware fault shutdown, and quadrature encoder input. The Cortex-M4F core runs field-oriented control (FOC) algorithms at 120 MHz with sufficient headroom for sensorless observers. The two 12-bit DACs output reference voltages for the gate driver stage, and the four analog comparators protect against over-current conditions with sub-microsecond response. The 100-pin TQFP provides enough I/O for three-phase gate drivers plus Hall/encoder feedback.
Recomendado
Connected IoT Edge Gateways
The ATSAME54N19A-AF serves as the main MCU in IoT edge gateways aggregating sensor data from multiple wireless protocols (LoRa, BLE, Wi-Fi sub-modules) before forwarding to the cloud via Ethernet. The 192 KB SRAM holds substantial MQTT buffers and TLS connection state, while AES/SHA hardware acceleration offloads secure connection overhead from the CPU. The integrated USB 2.0 Full-Speed Host enables direct connection to 4G LTE dongles for cellular backhaul. Six SERCOM interfaces support simultaneous connections to multiple wireless module UARTs and SPI sensors. The -40C to +125C range tolerates outdoor enclosure conditions.
Recomendado
Human-Machine Interface (HMI) Panels
The ATSAME54N19A-AF powers HMI panels with TFT LCD displays because its 120 MHz core drives parallel RGB displays up to 800x480 pixels using the integrated EBI (External Bus Interface), while the Cortex-M4F DSP extensions accelerate graphics rendering for icons and text. The two 12-bit DACs generate audio for tactile feedback buzzers, and the I2S interface supports external audio codecs for voice prompts. The 512 KB Flash stores full multilingual UI assets, while the -40C to +125C range supports industrial cabinet environments. USB 2.0 Full-Speed enables configuration via PC connection.
Recomendado
Smart Energy Metering
The ATSAME54N19A-AF measures electrical parameters in smart meters because its 12-bit 1 MSPS ADC simultaneously samples voltage and current with high accuracy, while the Cortex-M4F core runs FFT-based harmonic analysis in real time at full load. The two CAN-FD controllers interface with concentrator units for AMR/AMI backhaul, and the Ethernet MAC provides direct communication with utility data centers. Hardware AES and TRNG ensure secure data transmission and tamper detection. The 100-pin TQFP package enables compact meter form factors with full anti-tamper switch inputs on GPIOs.
Recomendado
USB Medical Device Peripherals
The ATSAME54N19A-AF is suitable for USB-connected medical peripherals such as patient monitors, ECG front-ends, and diagnostic imaging interfaces because its integrated USB 2.0 Full-Speed PHY provides certified connection to host PCs without external components. The 512 KB Flash stores firmware with regulatory validation, and the Cortex-M4F DSP extensions accelerate real-time signal processing for vital-signs monitoring. The 192 KB SRAM buffers streaming data, while the AES hardware accelerator secures PHI (Protected Health Information) in transit. The automotive/industrial temperature range supports clinical environment deployment.
Recomendado
Building Automation Controllers
The ATSAME54N19A-AF fits building automation controllers managing HVAC, lighting, and access control because its dual CAN-FD controllers bridge BACnet or KNX fieldbus networks, while the 10/100 Ethernet MAC connects to building IP backbones. The 120 MHz core runs multi-zone control algorithms including PID loops for HVAC damper control. Six SERCOM interfaces connect to multiple sensor and actuator chains via RS-485 or SPI. The -40C to +125C temperature range suits rooftop and mechanical-room installations. The 512 KB Flash with ECC stores full building configuration locally.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAME54N19A-AF — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAME54N19A-AFT | ATSAME54N20A-AF | ATSAME54N19A-AFVAO | ATSAME53N19A-AF | ATSAME51N19A-AF | ATSAMD51N19A-AF |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | 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 | 100-TQFP (14x14) - same |
| CPU Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 100 MHz | 120 MHz | 120 MHz |
| Flash Memory | 512 KB | 512 KB | 1 MB | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 192 KB | 192 KB | 256 KB | 192 KB | 192 KB | 192 KB | 192 KB |
| Ethernet MAC | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | Not present | Not present | Not present |
| CAN-FD Controllers | 2 | 2 | 2 | 2 | Not present | Not present | Not present |
| Temperature Grade | -40C to +125C Automotive | -40C to +125C Automotive | -40C to +125C Automotive | -40C to +125C Automotive, AEC-Q100 | -40C to +125C Automotive | -40C to +125C Automotive | -40C to +125C Automotive |
| Packaging Format | Tray | Tape & Reel | Tray | Tray | Tray | Tray | Tray |
| Unit Price (qty 1, USD) | $8.62 | Similar (T&R packaging) | Higher (+1 MB Flash) | Higher (AEC-Q100 formal qualification) | Lower (no Ethernet, no CAN-FD) | Lower (no Ethernet, no CAN-FD) | Lower (no CAN-FD) |
Principais diferenciais
- Integrated 10/100 Ethernet MAC and dual CAN-FD controllers (vs ATSAME53N19A-AF)
- 512 KB Flash matches the most popular SAM E54 variant (vs ATSAME54N20A-AF)
- Automotive temperature grade without formal AEC-Q100 certification overhead (vs ATSAME54N19A-AFVAO)
Notas de projeto
Place a 100 nF X7R ceramic decoupling capacitor adjacent to every VDD/VDDIO pin pair on the ATSAME54N19A-AF, plus a 4.7 uF bulk capacitor on each main rail. The high-speed 120 MHz digital core creates switching transients in the 50-100 MHz range; keeping the decoupling loop area under 5 mm reduces radiated emissions and supply ripple. The internal voltage regulator generates the 1.2 V core from the external 1.8-3.6 V supply, so do not back-power the MCU through any GPIO. Always connect all VDDIO pins even if a peripheral is unused, and tie all GND pins to a solid ground plane without cuts under the package.
The 100-pin TQFP package has 0.5 mm pitch leads requiring careful PCB layout. Use 0.15 mm copper-defined pads with 0.05 mm solder mask expansion for reliable solder joint formation. Route critical high-speed signals (USB DP/DN, Ethernet REF_CLK, SD_CLK) on the top layer with a continuous ground reference plane underneath; avoid routing these traces across power plane splits. The 14x14 mm body provides thermal pad with multiple GND pins - stitch them all to a single ground pour to minimize ground bounce on high-current switching events.
Do not exceed the maximum CPU clock of 120 MHz or supply voltage of 3.6 V on the ATSAME54N19A-AF. The dual-panel Flash requires firmware to use the NVMCTRL (Non-Volatile Memory Controller) SmartEEPROM emulation library for wear-leveled byte storage; raw Flash writes without proper page buffering cause data corruption. When using the integrated Ethernet MAC, configure the REF_CLK to match the external PHY (KSZ8081 uses 50 MHz); mismatch causes link failure. The SERCOM modules require explicit pin multiplexing setup via PORT register configuration before peripheral activation; skip this and SERCOM initialization appears to hang.
The USB 2.0 Full-Speed DP/DN differential pair requires 90 ohm differential impedance on the PCB with matched trace lengths within 0.5 mm. Place the 27-ohm series source termination resistors within 5 mm of the MCU pads. The Ethernet MAC requires a 49.9 ohm 1% termination resistor on the RX_CLK and TX_CLK traces between the PHY and MCU, with total trace length under 50 mm to keep rise time within IEEE 802.3 spec. Add a common-mode choke on the USB DP/DN pair if the design must pass CISPR 22 Class B radiated emissions.
Informações de conformidade
RoHS and REACH compliant per Microchip product page datasheet. The -AF temperature grade is -40C to +125C automotive but is not formally AEC-Q100 certified; for AEC-Q100 qualification request the VAO variant or the formal qualification letter from Microchip.
