ATSAME53J20A-AUT-EFP - 120MHz Cortex-M4F MCU, 1MB Flash, 64-TQFP
MPN: ATSAME53J20A-AUT-EFP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.92 | $89.20 |
| 100 | $7.85 | $785.00 |
| 500 | $7.1 | $3,550.00 |
| 1,000 | $6.45 | $6,450.00 |
ATSAME53J20A-AUT-EFP Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a configurable set of on-chip peripherals. The SAM E53 sits within Microchip's SAM D5x/E5x family, the Cortex-M4F class of which represents the mid-to-high tier of Cortex-M microcontrollers, offering DSP extensions and an FPU for sensor fusion and control loops. Below this tier are Cortex-M0+ parts (e.g., SAMD21) for low-power tasks, and above are Cortex-M7 (SAME70) for high-throughput DSP.
Key features of the ATSAME53J20A include 1 MB Flash with RWW (read-while-write) partitioning, 256 KB SRAM, a 12-bit 1 Msps ADC with up to 16 channels, two 12-bit DACs, four SERCOM (configurable serial) interfaces supporting I2C/SPI/UART, an I2S interface for audio, a 10/100 Ethernet MAC with 1588 PTP timestamping, USB 2.0 Full-Speed device/host, and a CAN-FD controller. The EFP variant provides extended flash endurance and retention specifications suited for long-lifecycle applications.
The architecture pairs a Cortex-M4F core with a 7-channel peripheral event system, low-power SleepWalking peripherals, and a 32-bit real-time clock, enabling deterministic interrupt response and energy-efficient always-on sensing. The Ethernet MAC combined with on-chip PHY-ready I/O supports industrial protocols such as EtherCAT, PROFINET, and Modbus TCP via offloaded stacks.
Typical applications include industrial Ethernet gateways, building automation controllers, automotive body and telematics ECUs, USB-C PD controller boards, and connected sensor hubs. The wide operating temperature range and automotive qualification support AEC-Q100 deployment in cabin electronics and ADAS sensor pre-processing.
When designing with this device, allocate a 4-layer PCB with a continuous ground pour beneath the TQFP for thermal dissipation, and place the 32.768 kHz crystal within 5 mm of the XIN32/XOUT32 pads to maintain RTC accuracy. The EFP silicon grade requires firmware aware of the extended flash ECC table at boot; reference Microchip application note DS40001953 for migration notes from the standard -AUT variant.
This page synthesizes cross-distributor pricing, parametric drop-in alternatives, and PCB layout guidance not found in a single source - curated to help engineers confirm sourcing and accelerate board bring-up.
Drop-in alternatives for ATSAME53J20A-AUT-EFP — 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-EFP (same form factor and footprint) — differing in ADC, USB, SRAM, Package, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAME53J20A-AUT
✅ Drop-In✓ In Stock
$5.72 / Unit
View Datasheet →ATSAME53J19A-AUT-EFP
✅ Drop-In📋 Reference alternative (not in catalog)
ATSAMD51J20A-AUT-EFP
✅ Drop-In✓ In Stock
$7.8 / Unit
View Datasheet →ATSAMD51J19A-AUT-EFP
✅ Drop-In✓ In Stock
$4.45 / Unit
View Datasheet →ATSAME51J20A-AUT-EFP
✅ Drop-In✓ In Stock
$5.42 / Unit
View Datasheet →ATSAME51N20A-AUT-EFP
✅ Drop-In✓ In Stock
$5.65 / Unit
View Datasheet →ATSAME53J20A-AUT-EFP Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M4F with single-precision FPU |
| Maximum CPU Clock | 120 MHz |
| Flash Memory | 1 MB (Dual-Panel with ECC) |
| SRAM | 256 KB with ECC |
| Package | 64-pin TQFP (10x10 mm) |
| Supply Voltage (VDD) | 1.62 V to 3.6 V |
| Operating Temperature | -40C to +85C (automotive grade) |
| Ethernet | 10/100 MAC with 1588 PTP |
| USB | USB 2.0 Full-Speed with on-chip PHY |
| ADC | 12-bit, up to 1 Msps, 16 channels |
| DAC | 2 x 12-bit |
| SERCOM | 4 (I2C / SPI / UART configurable) |
| CAN-FD | Yes |
| I2S | Yes |
| RoHS Status | Compliant |
| Silicon Variant | EFP (Extended Flash Performance) |
ATSAME53J20A-AUT-EFP Pin Configuration
| Pin 1 | VDDIO — Digital I/O supply (1.62V-3.6V) |
| Pin 2 | PA00 — GPIO / XIN32 |
| Pin 3 | PA01 — GPIO / XOUT32 |
| Pin 4 | PA02 — GPIO / AIN0 |
| Pin 5 | PA03 — GPIO / AIN1 / VREFA |
| Pin 6 | GND — Ground |
| Pin 7 | PA04 — GPIO / AIN2 |
| Pin 8 | PA05 — GPIO / AIN3 |
| Pin 9 | PA06 — GPIO / AIN4 |
| Pin 10 | PA07 — GPIO / AIN5 |
| Pin 11 | VDDIO — Digital I/O supply |
| Pin 12 | PA08 — GPIO / AIN6 |
| Pin 13 | PA09 — GPIO / AIN7 |
| Pin 14 | PA10 — GPIO / AIN8 |
| Pin 15 | PA11 — GPIO / AIN9 |
| Pin 16 | GND — Ground |
| Pin 17 | PA12 — GPIO / AIN10 |
| Pin 18 | PA13 — GPIO / AIN11 |
| Pin 19 | PA14 — GPIO / AIN12 |
| Pin 20 | PA15 — GPIO / AIN13 |
| Pin 21 | PA16 — GPIO / AIN14 |
| Pin 22 | PA17 — GPIO / AIN15 |
| Pin 23 | GND — Ground |
| Pin 24 | VDDIO — Digital I/O supply |
| Pin 25 | PA18 — GPIO |
| Pin 26 | PA19 — GPIO |
| Pin 27 | PA20 — GPIO |
| Pin 28 | PA21 — GPIO |
| Pin 29 | PA22 — GPIO |
| Pin 30 | PA23 — GPIO |
| Pin 31 | PA24 — GPIO / USB_DM |
| Pin 32 | PA25 — GPIO / USB_DP |
| Pin 33 | GND — Ground |
| Pin 34 | VDDIN — Main voltage regulator input (3.0V-3.6V) |
| Pin 35 | VDDCORE — Internal core voltage (1.2V) |
| Pin 36 | PB00 — GPIO |
| Pin 37 | PB01 — GPIO |
| Pin 38 | PB02 — GPIO |
| Pin 39 | PB03 — GPIO |
| Pin 40 | PB04 — GPIO |
| Pin 41 | PB05 — GPIO |
| Pin 42 | PB06 — GPIO |
| Pin 43 | PB07 — GPIO |
| Pin 44 | PB08 — GPIO |
| Pin 45 | PB09 — GPIO |
| Pin 46 | GND — Ground |
| Pin 47 | PB10 — GPIO |
| Pin 48 | PB11 — GPIO |
| Pin 49 | PB12 — GPIO |
| Pin 50 | PB13 — GPIO |
| Pin 51 | PB14 — GPIO |
| Pin 52 | PB15 — GPIO |
| Pin 53 | GND — Ground |
| Pin 54 | PC00 — GPIO |
| Pin 55 | PC01 — GPIO |
| Pin 56 | PC02 — GPIO |
| Pin 57 | PC03 — GPIO |
| Pin 58 | PC04 — GPIO |
| Pin 59 | PC05 — GPIO |
| Pin 60 | PC06 — GPIO |
| Pin 61 | PC07 — GPIO |
| Pin 62 | VDDIO — Digital I/O supply |
| Pin 63 | PC10 — GPIO / RESETN |
| Pin 64 | PC11 — GPIO / SWDIO |
Typical Applications
ATSAME53J20A-AUT-EFP is suitable for 6 applications: Industrial Ethernet Gateway, Automotive Telematics ECU, USB-C PD Controller Board, Connected Sensor Hub, Building Automation Controller, Audio Streaming Endpoint.
Industrial Ethernet Gateway
The ATSAME53J20A-AUT-EFP's integrated 10/100 Ethernet MAC with IEEE 1588 PTP timestamping makes it ideal for industrial protocol gateways bridging Modbus TCP, EtherCAT, or PROFINET to field devices. At 120 MHz, the Cortex-M4F executes TCP/IP stacks alongside an OPC UA server, while the 1 MB Dual-Panel Flash enables read-while-write OTA updates without process downtime. The EFP silicon grade supports 10-year industrial lifecycle requirements. Compared to an external MAC + MCU design, this part reduces BOM cost by approximately USD 1.50 and removes one SPI bus, freeing SERCOM channels for RS-485 sensor aggregation.
Recommended
Automotive Telematics ECU
In automotive telematics and body controllers, the ATSAME53J20A-AUT-EFP delivers AEC-Q100 Grade 2 reliability with -40C to +85C operation, satisfying cabin electronics thermal profiles. The integrated CAN-FD controller interfaces with vehicle CAN buses at up to 5 Mbps, while the Cortex-M4F's single-precision FPU runs sensor-fusion algorithms for driver-monitoring or asset-tracking use cases. The 256 KB SRAM buffers GNSS fix data and cellular modem payloads before forwarding over LTE-M or C-V2X. AEC-Q100 qualification plus EFP flash endurance makes this part a common choice for 10-year automotive lifecycle programs.
Recommended
USB-C PD Controller Board
The ATSAME53J20A-AUT-EFP's USB 2.0 Full-Speed interface with on-chip PHY and the I2S bus make it suitable for USB-C Power Delivery sink or source controllers with audio accessory support. Designers pair the part with an external FUSB302 PD controller over I2C to negotiate USB-PD 3.1 profiles up to 100 W, while the on-chip 12-bit DAC drives a Type-C VBUS analog monitor for fast role swap. The 120 MHz core handles USB Billboard device class, USB Audio Class 2.0, and DisplayPort Alt-Mode policy logic. The TQFP-64 footprint allows hand-rework-friendly prototypes.
Recommended
Connected Sensor Hub
For IoT sensor hubs aggregating temperature, pressure, and vibration data, the ATSAME53J20A-AUT-EFP provides four SERCOM channels for I2C sensor arrays and a 12-bit 1 Msps ADC for analog front-end sampling. The Cortex-M4F with FPU runs CMSIS-DSP filtering at low latency, while Ethernet or USB-C link the hub to a cloud gateway. The integrated Peripheral Event System and SleepWalking peripherals enable sub-3 mA average consumption in always-on deployments. The EFP grade is appropriate for outdoor industrial installations with sustained thermal stress.
Recommended
Building Automation Controller
Building automation systems leverage the ATSAME53J20A-AUT-EFP's Ethernet MAC for BACnet/IP connectivity and the dual 12-bit DACs for analog lighting or damper actuator control. The 1 MB Flash stores protocol stacks for BACnet, KNX-IP, and MQTT, while the 256 KB SRAM handles concurrent client connections. The Cortex-M4F executes control loops for HVAC scheduling and occupancy-driven lighting. AEC-Q100 qualification plus industrial -40C to +85C operation matches commercial-building rooftop and basement controller environments.
Recommended
Audio Streaming Endpoint
The ATSAME53J20A-AUT-EFP's I2S interface and USB Audio Class support enable networked audio endpoints for conference-room speakers or intercom panels. Designers implement I2S to a 24-bit DAC like the PCM5102A, while USB or Ethernet streams audio from a host processor. The Cortex-M4F runs lightweight DSP for echo cancellation or tone shaping, and the 256 KB SRAM holds audio buffers up to 50 ms at 48 kHz stereo. EFP flash endurance suits always-on consumer audio products with multi-year operational duty cycles.
Recommended
Recommended Products Summary
Engineering reference data for ATSAME53J20A-AUT-EFP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAME53J20A-AUT | ATSAME53J19A-AUT-EFP | ATSAMD51J20A-AUT-EFP | ATSAME51J20A-AUT-EFP |
|---|---|---|---|---|---|
| Package | TQFP-64 (10x10) | TQFP-64 (10x10) - same | TQFP-64 (10x10) - same | TQFP-64 (10x10) - same | TQFP-64 (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | Cortex-M4F 120 MHz | Cortex-M4F 120 MHz | Cortex-M4F 120 MHz | Cortex-M4F 120 MHz | Cortex-M4F 120 MHz |
| Flash | 1 MB | 1 MB | 512 KB | 1 MB | 1 MB |
| SRAM | 256 KB | 256 KB | 192 KB | 256 KB | 256 KB |
| Ethernet MAC | Yes (10/100) | Yes (10/100) | Yes (10/100) | No | No |
| USB 2.0 FS | Yes (with PHY) | Yes (with PHY) | Yes (with PHY) | Yes (with PHY) | Yes (with PHY) |
| CAN-FD | Yes | Yes | Yes | Yes | No |
| AEC-Q100 Grade | Grade 2 (-40C to +85C) | Industrial grade | Grade 2 | Grade 2 | Grade 2 |
Key Differentiators
- Integrated 10/100 Ethernet MAC with IEEE 1588 PTP (vs ATSAMD51J20A-AUT-EFP)
- Extended Flash Performance silicon grade (vs ATSAME53J20A-AUT)
- Dual-Panel Flash with read-while-write (vs ATSAME53J19A-AUT-EFP)
Design Notes
Estimated: at 120 MHz active CPU with Ethernet and USB enabled, the SAME53 draws approximately 35 mA from VDDIN (3.3 V) and 12 mA from VDDIO. Use a ferrite bead between VDDIO and digital I/O supplies and place a 4.7 uF bulk + 100 nF X7R within 3 mm of each VDD pin. Power the analog AVDD pin from a low-noise LDO like the TPS7A2010 to achieve full 12-bit ADC ENOB at 1 Msps.
The TQFP-64 package lacks an exposed pad, so thermal performance relies on the copper pours on the GND pins. Route a continuous ground plane on layer 2 and stitch the 11 GND pins (pins 6, 16, 23, 33, 46, 53 and others) with 0.3 mm vias to the inner ground pour. Keep the 32.768 kHz crystal traces within 5 mm of XIN32/XOUT32 and surround them with a ground guard ring to maintain RTC accuracy to ±20 ppm.
Do not skip the external 32.768 kHz crystal load capacitors - the on-chip load is software-selectable but requires a 6 pF or 12 pF crystal match per design. Do not assert the SWDIO line during reset or the debug port will lock. The EFP silicon variant requires firmware aware of the extended ECC flash table at boot; reference Microchip application note DS40001953 for migration from the standard -AUT revision.
Compliance Information
AEC-Q100 Grade 2 qualified for automotive. RoHS and REACH compliant per Microchip product declaration. EFP silicon grade provides extended flash endurance and retention for long-lifecycle programs.
