ATSAME53J18A-AU-EFP - 120MHz Cortex-M4F MCU 256KB Flash | Microchip
MPN: ATSAME53J18A-AU-EFP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.45 | $64.50 |
| 100 | $5.72 | $572.00 |
| 250 | $5.3 | $1,325.00 |
| 1,000 | $4.65 | $4,650.00 |
ATSAME53J18A-AU-EFP Overview
What is a microcontroller (MCU)? A microcontroller is a single-chip computer containing a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals (GPIO, timers, ADC, communication interfaces). The Cortex-M4F architecture is a Harvard-bus 32-bit core optimized for embedded real-time control, with hardware single-precision floating point and DSP extensions, fitting into the broader taxonomy: MCU -> microcontroller -> embedded processor -> semiconductor.
Key features of the ATSAME53J18A-AU-EFP include 256 KB Flash with ECC and dual-panel support for safe in-application updates, 120 MHz core clock, integrated 10/100 Mbps Ethernet MAC, USB 2.0 Full-Speed with on-chip PHY, an I2S audio interface, a 12-bit 1 MSPS ADC, and a Parallel Capture Interface for camera or display input. The 'EFP' suffix indicates Extended Flash Performance and a Tray packaging option, while the 'AU' suffix denotes an automotive-grade (-40C to +85C) operating range.
The device integrates a sophisticated peripherals set including a QSPI interface for external memory, multiple SERCOM (UART/SPI/I2C) channels, an on-chip 12-bit DAC, CAN-FD, and a Pixel Read/Wait signal interface for TFT displays. The architecture supports 5 V tolerant I/O on selected pins and includes an Event System for deterministic inter-peripheral signaling without CPU intervention, a hallmark of the SAM family.
Typical applications include industrial building automation gateways, IoT edge nodes with Ethernet connectivity, automotive dashboard controllers, HMI panels with TFT displays, and connected sensor hubs. The combination of Ethernet MAC and USB makes the ATSAME53J18A-AU-EFP particularly attractive for industrial IoT bridges that aggregate sensor data and forward it to the cloud.
When designing with this part, ensure the 64-pin TQFP land pattern supports the 10x10 mm footprint and route the Ethernet differential pairs with 100-ohm controlled impedance. The internal 1.2V LDO core regulator requires bulk capacitance near the VCORE pin for stable operation at 120 MHz.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single resource for component selection.
Drop-in alternatives for ATSAME53J18A-AU-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 ATSAME53J18A-AU-EFP (same form factor and footprint) — differing in DAC, CAN, Ethernet, Operating Voltage, USB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAME53J19A-AU-EFP
✅ Drop-In✓ In Stock
$6.1 / Unit
View Datasheet →ATSAME53J18A-AUT-EFP
✅ Drop-In📋 Reference alternative (not in catalog)
ATSAME51J18A-AU-EFP
✅ Drop-In✓ In Stock
$5.78 / Unit
View Datasheet →ATSAMD51J18A-AU-EFP
✅ Drop-In✓ In Stock
$3.95 / Unit
View Datasheet →ATSAME53J20A-AU-EFP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.8 / Unit
View Datasheet →ATSAME53J18A-AU-EFP Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M4F with FPU |
| Core Architecture | ARM 32-bit |
| Maximum Clock Frequency | 120 MHz |
| Program Memory Size | 256 KB (256K x 8) Flash |
| RAM Size | 128 KB SRAM with ECC |
| Supply Voltage | 3.3 V (typical); 1.62 V to 3.6 V range |
| Operating Temperature Range | -40 C to +85 C (Automotive 'AU' grade) |
| Package | 64-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Ethernet | 10/100 Mbps MAC integrated |
| USB | USB 2.0 Full-Speed with on-chip PHY |
| ADC | 12-bit, up to 1 MSPS |
| DAC | 12-bit integrated |
| Operating Temperature Grade | Automotive (Grade 2) |
| RoHS Status | Compliant |
| Tray Packaging | Yes (EFP suffix indicates Tray) |
ATSAME53J18A-AU-EFP 64-pin tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for ATSAME53J18A-AU-EFP (64-pin tqfp (10x10 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for ATSAME53J18A-AU-EFP.
Refer to the datasheet for full pin configuration.
Typical Applications
ATSAME53J18A-AU-EFP is suitable for 6 applications: Industrial Building Automation Gateway, Connected IoT Edge Sensor Hub, Automotive Dashboard HMI Controller, USB-to-Ethernet Bridge Module, Audio Streaming Endpoint with I2S, Smart Agriculture Sensor Node.
Industrial Building Automation Gateway
The ATSAME53J18A-AU-EFP fits industrial building automation gateways because it integrates a 10/100 Ethernet MAC and CAN-FD, enabling BACnet/Modbus TCP and CAN sensor networks on a single chip. At 120 MHz Cortex-M4F, the MCU can run TCP/IP stacks, TLS encryption, and real-time control tasks concurrently. The 256 KB dual-panel Flash supports OTA firmware updates with rollback protection. The 64-pin TQFP footprint simplifies integration into compact DIN-rail enclosures.
Recommended
Connected IoT Edge Sensor Hub
For IoT edge sensor hubs, the ATSAME53J18A-AU-EFP combines Ethernet connectivity, a 12-bit 1 MSPS ADC for analog sensors, and 128 KB SRAM for data buffering. The Cortex-M4F with FPU accelerates edge analytics like FFT vibration analysis on machinery data. USB 2.0 Full-Speed with on-chip PHY enables easy provisioning via USB-C. The dual-panel Flash with ECC ensures sensor data logs are stored reliably across the operating temperature range.
Recommended
Automotive Dashboard HMI Controller
The ATSAME53J18A-AU-EFP suits automotive dashboard HMI controllers due to its -40C to +85C automotive temperature grade, CAN-FD bus interface, and I2S audio output for chimes and voice prompts. At 120 MHz, the Cortex-M4F core can drive TFT LCDs through the Parallel Capture Interface and run LVGL or emWin graphics stacks. The dual-panel Flash allows safe in-field firmware updates required by automotive OEMs.
Recommended
USB-to-Ethernet Bridge Module
As a USB-to-Ethernet bridge, the ATSAME53J18A-AU-EFP leverages both integrated USB 2.0 Full-Speed with PHY and 10/100 Ethernet MAC to provide connectivity without external controllers. The 120 MHz Cortex-M4F easily handles the USB CDC-ECM and Ethernet MAC bridging with line-rate throughput. The 64-pin TQFP package enables compact dongle form factors, while 256 KB Flash supports embedded TCP/IP stacks and device drivers.
Recommended
Audio Streaming Endpoint with I2S
The ATSAME53J18A-AU-EFP's integrated I2S interface and 12-bit DAC enable compact audio streaming endpoints for industrial intercoms and PA systems. Ethernet transports audio streams using Dante or AES67 protocols, while the Cortex-M4F FPU handles audio DSP at low latency. The 128 KB SRAM buffers audio frames comfortably, and automotive temperature grade supports harsh installation environments like factory floors.
Recommended
Smart Agriculture Sensor Node
For smart agriculture sensor nodes, the ATSAME53J18A-AU-EFP combines Ethernet MAC for gateway connectivity with the 12-bit ADC for soil moisture, temperature, and light sensor inputs. The automotive temperature grade handles outdoor enclosures in extreme climates. The 256 KB dual-panel Flash supports long-term sensor calibration data, while the SERCOM interfaces connect to LoRa or Sub-GHz radios for hybrid connectivity in remote fields.
Recommended
Recommended Products Summary
Engineering reference data for ATSAME53J18A-AU-EFP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAME53J19A-AU-EFP | ATSAME53J18A-AUT-EFP | ATSAME51J18A-AU-EFP | ATSAMD51J18A-AU-EFP | ATSAME53J20A-AU-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 | 64-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | 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 | Cortex-M4F @ 120 MHz |
| Flash Memory | 256 KB | 512 KB (+100%) | 256 KB (same) | 256 KB (same) | 256 KB (same) | 1 MB (+300%) |
| SRAM | 128 KB | 128 KB (same) | 128 KB (same) | 128 KB (same) | 128 KB (same) | 256 KB (+100%) |
| Ethernet MAC | 10/100 Mbps integrated | 10/100 Mbps integrated | 10/100 Mbps integrated | Not present | Not present | 10/100 Mbps integrated |
| 12-bit ADC | 1 MSPS integrated | 1 MSPS integrated | 1 MSPS integrated | Not present | Not present | 1 MSPS integrated |
| Packaging Form | Tray | Tray | Tape & Reel | Tray | Tray | Tray |
| Automotive Temperature Grade | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Integrated Ethernet MAC eliminates external controller cost (vs ATSAME51J18A-AU-EFP)
- Dual-panel Flash enables safe OTA firmware updates (vs ATSAMD51J18A-AU-EFP)
- Smaller Flash size reduces cost for compact designs (vs ATSAME53J20A-AU-EFP)
Design Notes
The ATSAME53J18A-AU-EFP requires two decoupling capacitors per VDD pin plus a 4.7uF bulk capacitor on the main 3.3V rail. The internal 1.2V LDO core regulator (LDOCTRL) needs a 1uF ceramic capacitor on VCORE for stable 120 MHz operation. Estimated: at 120 MHz active, the MCU draws approximately 30-40 mA; add a 10% margin when sizing the 3.3V LDO upstream.
Route the Ethernet RMII signals (ETH_TXEN, ETH_TXD[1:0], ETH_RXD[1:0], ETH_CRS_DV, ETH_REF_CLK) as a matched-length bus with 50-ohm controlled impedance, length-matched within 5 mm. The USB DP/DM differential pair requires 90-ohm differential impedance. Place the 25 MHz Ethernet PHY crystal and MCU crystal within 5 mm of their respective pins to minimize jitter.
Do not enable the dual-panel Flash without configuring the NVMCTRL panel switch registers in the startup file; incorrect panel selection can cause boot loops. The 'EFP' suffix indicates Extended Flash Performance parameters - ensure your linker script enables the cache-coherent region. The automotive 'AU' grade is -40C to +85C; for extended industrial -40C to +105C, consider industrial-only variants.
Compliance Information
RoHS and lead-free confirmed by Microchip product page. The 'AU' suffix denotes automotive temperature grade -40C to +85C but is not AEC-Q100 qualified (consult Microchip for Q100 qualified variants). REACH compliance confirmed.
