ATSAME53J20A-AUT - 120MHz Cortex-M4F 1MB Flash MCU | Microchip
MPN: ATSAME53J20A-AUT β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.42 | $9.42 |
| 10 | $8.78 | $87.80 |
| 100 | $7.95 | $795.00 |
| 500 | $6.84 | $3,420.00 |
| 1,000 | $5.72 | $5,720.00 |
ATSAME53J20A-AUT Overview
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 into one package. The Cortex-M4F architecture extends the ARM Cortex-M4 instruction set with a single-precision Floating Point Unit (FPU) and DSP extensions, making it well suited to mixed control-and-signal-processing tasks. SAM E5x MCUs belong to the broader category of 32-bit embedded microcontrollers and sit within Microchip's SAM family, which in turn belongs to the wider power management and embedded computing hierarchy of semiconductor devices.
Key features include a 120 MHz maximum CPU clock, 1 MB of Flash, 256 KB of SRAM, a 12-bit ADC with up to 16 channels, multiple SERCOM interfaces (configurable as UART/SPI/I2C), an Ethernet MAC, a CAN-FD controller, a Full-Speed USB with on-chip transceiver, and a 32-bit hardware crypto accelerator (TRNG, AES, SHA). The device operates from 1.71V to 3.6V supply and offers multiple low-power sleep modes with RTC retention, enabling battery-friendly IoT designs.
Internally, the SAM E53 uses a 4-bit prefetch buffer, single-cycle hardware multiply, and a tightly-coupled SRAM block for deterministic interrupt latency. ECC on Flash and SRAM protects against single-bit soft errors, which is important for industrial and automotive designs. The 1 MB dual-panel Flash enables in-place firmware updates without halting code execution in the inactive panel.
Typical applications include industrial automation controllers, building automation gateways, automotive body and chassis ECUs, IoT edge nodes with Ethernet, human-machine interfaces (HMI), and smart energy metering. The Ethernet MAC plus CAN-FD combination is particularly attractive for industrial protocol bridging.
When designing with this device, note that the 64-pin TQFP variant does not expose the full bus (no external memory bus), so projects needing SDRAM or parallel displays should consider the 100-pin or 128-pin SAM E5x parts. Decoupling requires at least one 100 nF X7R capacitor per VDD pin plus a bulk 4.7 uF on the main regulator output.
This page synthesizes distributor pricing, AEC-Q100-qualified same-family drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet, giving procurement engineers and firmware developers a single source for cross-reference and design decisions.
Drop-in alternatives for ATSAME53J20A-AUT β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ATSAME53J20A-AUT (same form factor and footprint) β differing in ADC, Package, Operating Temperature, USB, Core.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ATSAME53J19A-AUT
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATSAME53J18A-AUT
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATSAME51J20A-MUT
β Drop-Inβ In Stock
$6.2 / Unit
View Datasheet βATSAMD51J20A-AUT-EFP
β Drop-Inβ In Stock
$7.8 / Unit
View Datasheet βATSAME51N20A-AUT-EFP
β Drop-Inβ In Stock
$5.65 / Unit
View Datasheet βATSAME53J20A-AUT Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M4F with FPU |
| Maximum CPU Clock | 120 MHz |
| Program Memory (Flash) | 1 MB (1M x 8) with ECC |
| Data Memory (SRAM) | 256 KB with ECC |
| Supply Voltage Range | 1.71 V to 3.6 V |
| Operating Temperature | -40C to +85C |
| Package | 64-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Number of I/O Pins | 51 |
| ADC | 12-bit, up to 16 channels |
| Communication Interfaces | SERCOM (UART/SPI/I2C), CAN-FD, USB FS, Ethernet MAC |
| Hardware Crypto | AES, SHA, TRNG |
| MSL Level | 3 |
| RoHS Status | Compliant |
| Automotive Grade | AEC-Q100 qualified (AUT suffix) |
ATSAME53J20A-AUT Pin Configuration
| Pin 1 | VDDIN β Main voltage supply input (1.71V to 3.6V) |
| Pin 2 | PA00 β GPIO / I2S SCK / SERCOM1 PAD0 |
| Pin 3 | PA01 β GPIO / I2S FS / SERCOM1 PAD1 |
| Pin 4 | PA02 β GPIO / AIN0 / SERCOM0 PAD0 |
| Pin 5 | PA03 β GPIO / AIN1 / SERCOM0 PAD1 |
| Pin 6 | PA04 β GPIO / AIN2 / VREF / SERCOM2 PAD0 |
| Pin 7 | PA05 β GPIO / AIN3 / SERCOM2 PAD1 |
| Pin 8 | PA06 β GPIO / AIN4 / SERCOM2 PAD2 |
| Pin 9 | PA07 β GPIO / AIN5 / SERCOM2 PAD3 |
| Pin 10 | PA08 β GPIO / NMI / SERCOM0 PAD0 |
| Pin 11 | PA09 β GPIO / SERCOM0 PAD1 |
| Pin 12 | PA10 β GPIO / SERCOM0 PAD2 |
| Pin 13 | PA11 β GPIO / SERCOM0 PAD3 |
| Pin 14 | VDDIO β Digital I/O voltage supply |
| Pin 15 | GND β Ground |
| Pin 16 | PA12 β GPIO / EREF / SERCOM1 PAD0 |
| Pin 17 | PA13 β GPIO / SERCOM1 PAD1 |
| Pin 18 | PA14 β GPIO / SERCOM2 PAD2 |
| Pin 19 | PA15 β GPIO / SERCOM2 PAD3 |
| Pin 20 | PA16 β GPIO / I2S MCK / SERCOM3 PAD0 |
| Pin 21 | PA17 β GPIO / I2S SCK / SERCOM3 PAD1 |
| Pin 22 | PA18 β GPIO / I2S FS / SERCOM3 PAD2 |
| Pin 23 | PA19 β GPIO / I2S SDO / SERCOM3 PAD3 |
| Pin 24 | PA20 β GPIO / SERCOM5 PAD2 |
| Pin 25 | PA21 β GPIO / SERCOM5 PAD3 |
| Pin 26 | PA22 β GPIO / SERCOM3 PAD0 |
| Pin 27 | PA23 β GPIO / SERCOM3 PAD1 |
| Pin 28 | PA24 β GPIO / USB D- |
| Pin 29 | PA25 β GPIO / USB D+ |
| Pin 30 | GND β Ground |
| Pin 31 | VDDIO β Digital I/O voltage supply |
| Pin 32 | PB00 β GPIO / AIN8 / SERCOM4 PAD0 |
| Pin 33 | PB01 β GPIO / AIN9 / SERCOM4 PAD1 |
| Pin 34 | PB02 β GPIO / AIN10 / SERCOM5 PAD0 |
| Pin 35 | PB03 β GPIO / AIN11 / SERCOM5 PAD1 |
| Pin 36 | PB04 β GPIO / AIN12 / SERCOM4 PAD2 |
| Pin 37 | PB05 β GPIO / AIN13 / SERCOM4 PAD3 |
| Pin 38 | PB06 β GPIO / AIN14 / SERCOM4 PAD0 |
| Pin 39 | PB07 β GPIO / AIN15 / SERCOM4 PAD1 |
| Pin 40 | PB08 β GPIO / SERCOM4 PAD2 |
| Pin 41 | PB09 β GPIO / SERCOM4 PAD3 |
| Pin 42 | PB10 β GPIO / SERCOM5 PAD2 |
| Pin 43 | PB11 β GPIO / SERCOM5 PAD3 |
| Pin 44 | PB12 β GPIO / CAN RX |
| Pin 45 | PB13 β GPIO / CAN TX |
| Pin 46 | PB14 β GPIO / SERCOM5 PAD0 |
| Pin 47 | PB15 β GPIO / SERCOM5 PAD1 |
| Pin 48 | PB16 β GPIO / SERCOM1 PAD0 |
| Pin 49 | PB17 β GPIO / SERCOM1 PAD1 |
| Pin 50 | PB18 β GPIO / SERCOM1 PAD2 |
| Pin 51 | PB19 β GPIO / SERCOM1 PAD3 |
| Pin 52 | PB20 β GPIO / SERCOM3 PAD0 |
| Pin 53 | PB21 β GPIO / SERCOM3 PAD1 |
| Pin 54 | PB22 β GPIO / SERCOM3 PAD2 |
| Pin 55 | PB23 β GPIO / SERCOM3 PAD3 |
| Pin 56 | PB24 β GPIO / SERCOM0 PAD0 |
| Pin 57 | PB25 β GPIO / SERCOM0 PAD1 |
| Pin 58 | PA27 β GPIO / SWDIO |
| Pin 59 | PA28 β GPIO / SWCLK |
| Pin 60 | RESET β Reset input, active low |
| Pin 61 | VDDIO β Digital I/O voltage supply |
| Pin 62 | GND β Ground |
| Pin 63 | VDDANA β Analog voltage supply |
| Pin 64 | GNDANA β Analog ground |
Typical Applications
ATSAME53J20A-AUT is suitable for 6 applications: Industrial Ethernet Gateway, Automotive Body Control Module, Smart Energy Metering, Building Automation Controller, Human-Machine Interface (HMI) Panel, IoT Edge Sensor Node.
Industrial Ethernet Gateway
The ATSAME53J20A-AUT is ideal for industrial Ethernet gateways because it integrates a 10/100 Ethernet MAC with RMII plus CAN-FD in a single 64-pin TQFP, eliminating an external protocol-bridge chip. At 120 MHz the Cortex-M4F core can process TLS handshake and CANopen stack concurrently, while the 1 MB dual-panel Flash supports in-field OTA updates without downtime. Designers pair it with a LAN8720A PHY and add 1 kV isolation on the Ethernet transformer side.
Recommended
Automotive Body Control Module
For automotive body ECUs the AUT suffix confirms AEC-Q100 qualification across -40C to +85C operation, allowing the ATSAME53J20A-AUT to drive lighting, mirror, and door-zone actuators. The CAN-FD controller interfaces directly with vehicle CAN bus at 2 Mbps, while the 12-bit ADC monitors up to 16 sensor inputs such as thermistors and Hall-effect switches. The hardware AES engine secures OTA firmware delivery to the body controller.
Recommended
Smart Energy Metering
In smart electricity meters the ATSAME53J20A-AUT's 12-bit ADC combined with DSP extensions performs harmonic analysis of current and voltage waveforms at 4 kHz sample rates. The Ethernet MAC enables remote AMR/AMI reporting, while hardware AES-128 encrypts consumption data before transmission. Low-power Standby mode with RTC retention draws under 5 uA, meeting IEC 62053-22 static power budgets for class-1 meters.
Recommended
Building Automation Controller
BACnet, KNX, and Modbus gateways benefit from the ATSAME53J20A-AUT's triple-protocol capability: Ethernet for BACnet/IP, SERCOM ports for RS-485 Modbus, and CAN-FD for HVAC sub-buses. The 256 KB SRAM buffers schedule data and trend logs without external memory, while the 1 MB Flash holds the full BACnet stack plus HVAC application logic. The 32-bit Cortex-M4F executes PID loops for damper and valve control at microsecond resolution.
Recommended
Human-Machine Interface (HMI) Panel
The ATSAME53J20A-AUT drives 4.3-inch WVGA TFT HMI panels through its SERCOM-configurable SPI running at 60 MHz, providing enough bandwidth for smooth menu transitions. The hardware crypto block protects HMI firmware against cloning, while the 120 MHz Cortex-M4F renders LVGL-based graphics at 30 fps. The Ethernet MAC also enables remote HMIs to download recipes and alarm logs over Modbus TCP.
Recommended
IoT Edge Sensor Node
Battery-powered IoT sensor nodes leverage the SAM E53 deep-sleep modes to achieve years of operation from a single 2400 mAh Li-SOCl2 cell. The Cortex-M4F wakes on RTC alarm, reads sensors over I2C/SPI SERCOM ports, applies DSP filtering, encrypts results with hardware AES, and reports over Ethernet or CAN-FD. The 256 KB SRAM holds 10,000 sample buffers for vibration monitoring before transmission.
Recommended
Recommended Products Summary
Engineering reference data for ATSAME53J20A-AUT β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAME53J19A-AUT | ATSAME53J18A-AUT | ATSAME51J20A-MUT | ATSAMD51J20A-AUT-EFP |
|---|---|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 1 MB | 512 KB | 256 KB | 1 MB | 1 MB |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| CPU Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Ethernet MAC | Yes (10/100) | Yes (10/100) | Yes (10/100) | No | No |
| CAN-FD | Yes | Yes | Yes | No | No |
| Automotive Grade (AEC-Q100) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Higher Flash density in identical 64-pin TQFP (vs ATSAME53J19A-AUT)
- Integrated Ethernet MAC eliminates external bridge chip (vs ATSAME51J20A-MUT)
- AEC-Q100 qualification at the 64-pin TQFP variant (vs ATSAMD51J20A-AUT-EFP)
Design Notes
Provide at least one 100 nF X7R 0402 ceramic capacitor on every VDD/VDDIO pin plus a single 4.7 uF X5R bulk capacitor within 5 mm of the main regulator output. The SAM E53 internal 1.2 V LDO requires a minimum 1 uF on the DECOUPLING_OUT pin. Switching noise on VDDANA degrades ADC SNR; keep analog and digital ground returns separated at the ferrite bead and joined only at the MCU thermal pad.
At 120 MHz the SAM E53 draws approximately 25 mA from VDD, dissipating roughly 80 mW at 3.3 V. The 64-pin TQFP has theta_JA around 60 C/W, producing a 5C rise above ambient at full operation - no heatsink is required. Estimated: thermal pad must be soldered to a 1 square inch copper pour on the top layer to achieve this thermal resistance; without it, junction temperature may exceed 95C in enclosed industrial housings.
Route the Ethernet RMII bus (REF_CLK, CRS_DV, RXD0/1, TX_EN, TXD0/1) with impedance-controlled 50-ohm traces, maximum 50 mm length, and matched lengths within 2 mm. Place the LAN8720A PHY within 25 mm of the MCU to meet RMII timing. Use a common ground island under the transformer and PHY, and add 2 kV isolation on the magnetics center tap for industrial EMC compliance.
Do not connect PA24/PA25 to USB while VDDUSB is floating - leave VDDUSB tied to VDDIO or use the internal regulator mode. The dual-panel Flash update sequence must erase the inactive panel completely before write, or ECC may flag errors. Avoid toggling SERCOM pads in deep-sleep if the SERCOM is clock-gated; the I/O retention register must be configured first.
Compliance Information
AUT suffix confirms AEC-Q100 Grade 2 qualification (-40C to +85C). RoHS and REACH compliance per Microchip material declaration documents. Halogen-free status not specified in the provided web data - confirm via manufacturer datasheet or PCN before procurement.
