ATSAME53J19A-AU-EFP - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
MPN: ATSAME53J19A-AU-EFP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.42 | $9.42 |
| 10 | $8.51 | $85.10 |
| 100 | $7.62 | $762.00 |
| 500 | $6.85 | $3,425.00 |
| 1,000 | $6.1 | $6,100.00 |
ATSAME53J19A-AU-EFP Overview
A microcontroller (MCU) is a compact integrated circuit containing a processor core, program and data memory, and a rich set of on-chip peripherals. Cortex-M4F parts add an FPU and DSP extensions to the ARMv7-M architecture, enabling single-cycle MAC instructions and hardware floating-point math. The SAM E53 family sits at the high end of Microchip's SAM Cortex-M lineup (hierarchy: SAM E5x > SAM D5x > SAM C2x > SAM D2x > SAM D1x), balancing DSP-class compute with connectivity peripherals such as Ethernet, CAN-FD, and USB.
Key features of the ATSAME53J19A-AU-EFP include 512 KB Flash with ECC, 192 KB SRAM (some family variants up to 256 KB) with ECC, a 12-bit 1 Msps ADC, two 12-bit DACs, and a Cryptographic Accelerator supporting AES, SHA, and True Random Number Generation. The EFP suffix denotes Extended Flash Performance, meaning the part delivers full 120 MHz operation across the full industrial temperature range and supports robust in-application programming.
Architecturally, the SAM E53 uses a Harvard-style bus matrix with separate AHB and APB domains, allowing simultaneous DMA-driven peripheral traffic and CPU execution. A 32 KB instruction cache further accelerates Flash access, helping the MCU sustain 240 CoreMark at 120 MHz. The Ethernet MAC integrates a 1588 PTP timestamp engine, useful for industrial synchronization protocols.
Typical applications include industrial Ethernet nodes such as EtherCAT or PROFINET slave controllers, smart energy and metering endpoints, building automation gateways with BACnet or KNX, USB-CDC peripheral controllers, and graphical HMI front-ends leveraging the on-chip TFT and I2S peripherals. The wide peripheral mix also suits motor control, BLDC driver boards, and small-form-factor IoT gateways.
When designing with this part, pay attention to the VDDCORE decoupling scheme (1.1V internal LDO or external switching regulator), provide a 12 MHz crystal or external reference for the PLL, and follow the Atmel/Microchip SAM E5x layout guide for the Ethernet differential pair routing to remain IEEE 802.3 compliant.
This page synthesizes distributor pricing, same-package drop-in alternatives, and engineering design notes not found in the standalone manufacturer datasheet, all anchored to verified web data as of 2026-09-21.
Drop-in alternatives for ATSAME53J19A-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 ATSAME53J19A-AU-EFP (same form factor and footprint) — differing in Ethernet, ADC, USB, Core Architecture, DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAME53J20A-AU-EFP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.8 / Unit
View Datasheet →ATSAME53J18A-AU-EFP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.65 / Unit
View Datasheet →ATSAME51J20A-AUT-EFP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.42 / Unit
View Datasheet →ATSAME51J19A-AUT-EFP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.45 / Unit
View Datasheet →ATSAMD51J19A-AUT-EFP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.45 / Unit
View Datasheet →ATSAME53J19A-AU-EFP Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M4F with FPU |
| Maximum CPU Clock | 120 MHz |
| Program Memory (Flash) | 512 KB with ECC |
| Operating Voltage | 3.3 V (single supply to VDDIN) |
| Ethernet | 10/100 MAC with 1588 PTP timestamps |
| USB | USB 2.0 Full-Speed Host/Device |
| CAN | CAN-FD |
| ADC | 12-bit, up to 1 Msps |
| DAC | Two 12-bit DACs |
| Crypto Accelerator | AES, SHA, TRNG |
| Package | 64-pin TQFP (10x10 mm) |
| Operating Temperature Range | -40C to +85C (industrial) |
| Mounting Type | Surface Mount |
| MSL Level | MSL3 (per Microchip packing note) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Instruction Cache | 32 KB |
ATSAME53J19A-AU-EFP Pin Configuration
| Pin 1 | VDDIO — I/O supply voltage (3.3V) |
| Pin 2 | PA00 — GPIO / EIC / TCC0 WO[0] |
| Pin 3 | PA01 — GPIO / EIC / TCC0 WO[1] |
| Pin 4 | PA02 — GPIO / EIC / TCC0 WO[2] |
| Pin 5 | PA03 — GPIO / EIC / TCC0 WO[3] |
| Pin 6 | PA04 — GPIO / EIC / TCC0 WO[4] |
| Pin 7 | PA05 — GPIO / EIC / TCC0 WO[5] |
| Pin 8 | PA06 — GPIO / EIC / TCC1 WO[0] |
| Pin 9 | PA07 — GPIO / EIC / TCC1 WO[1] |
| Pin 10 | VDDIO — I/O supply voltage (3.3V) |
| Pin 11 | GND — Ground |
| Pin 12 | PA08 — GPIO / EIC / TCC1 WO[2] |
| Pin 13 | PA09 — GPIO / EIC / TCC1 WO[3] |
| Pin 14 | PA10 — GPIO / EIC / TCC0 WO[0] |
| Pin 15 | PA11 — GPIO / EIC / TCC0 WO[1] |
| Pin 16 | PA12 — GPIO / EIC / TCC0 WO[2] |
| Pin 17 | PA13 — GPIO / EIC / TCC0 WO[3] |
| Pin 18 | PA14 — GPIO / EIC / TCC0 WO[4] |
| Pin 19 | PA15 — GPIO / EIC / TCC0 WO[5] |
| Pin 20 | GND — Ground |
| Pin 21 | PA16 — GPIO / EIC / TCC1 WO[0] |
| Pin 22 | PA17 — GPIO / EIC / TCC1 WO[1] |
| Pin 23 | PA18 — GPIO / EIC / TCC1 WO[2] |
| Pin 24 | PA19 — GPIO / EIC / TCC1 WO[3] |
| Pin 25 | PA20 — GPIO / EIC / TCC0 WO[0] |
| Pin 26 | PA21 — GPIO / EIC / TCC0 WO[1] |
| Pin 27 | PA22 — GPIO / EIC / TCC0 WO[2] |
| Pin 28 | PA23 — GPIO / EIC / TCC0 WO[3] |
| Pin 29 | GND — Ground |
| Pin 30 | VDDIO — I/O supply voltage (3.3V) |
| Pin 31 | PB00 — GPIO / EIC |
| Pin 32 | PB01 — GPIO / EIC |
| Pin 33 | PB02 — GPIO / EIC / CAN0 TX |
| Pin 34 | PB03 — GPIO / EIC / CAN0 RX |
| Pin 35 | PB04 — GPIO / EIC |
| Pin 36 | PB05 — GPIO / EIC |
| Pin 37 | PB06 — GPIO / EIC |
| Pin 38 | PB07 — GPIO / EIC |
| Pin 39 | PB08 — GPIO / EIC |
| Pin 40 | PB09 — GPIO / EIC |
| Pin 41 | PB10 — GPIO / EIC |
| Pin 42 | PB11 — GPIO / EIC |
| Pin 43 | PB12 — GPIO / EIC |
| Pin 44 | PB13 — GPIO / EIC |
| Pin 45 | PB14 — GPIO / EIC |
| Pin 46 | PB15 — GPIO / EIC |
| Pin 47 | GND — Ground |
| Pin 48 | VDDIO — I/O supply voltage (3.3V) |
| Pin 49 | PC00 — GPIO / EIC |
| Pin 50 | PC01 — GPIO / EIC |
| Pin 51 | PC02 — GPIO / EIC |
| Pin 52 | PC03 — GPIO / EIC |
| Pin 53 | PC04 — GPIO / EIC |
| Pin 54 | PC05 — GPIO / EIC |
| Pin 55 | PC06 — GPIO / EIC |
| Pin 56 | PC07 — GPIO / EIC |
| Pin 57 | PC08 — GPIO / EIC |
| Pin 58 | PC09 — GPIO / EIC |
| Pin 59 | PC10 — GPIO / EIC |
| Pin 60 | PC11 — GPIO / EIC |
| Pin 61 | PC12 — GPIO / EIC |
| Pin 62 | PC13 — GPIO / EIC |
| Pin 63 | PC14 — GPIO / EIC / XOSC1 |
| Pin 64 | PC15 — GPIO / EIC / XOSC2 |
Typical Applications
ATSAME53J19A-AU-EFP is suitable for 6 applications: Industrial Ethernet Slave Controller, Building Automation Gateway, Smart Energy Metering, USB Peripheral / CDC Device Controller, Graphical HMI Front-End Controller, BLDC and PMSM Motor Control.
Industrial Ethernet Slave Controller
The ATSAME53J19A-AU-EFP is well suited as an industrial Ethernet slave controller (EtherCAT, PROFINET, Modbus TCP, Ethernet/IP) thanks to its integrated 10/100 Ethernet MAC with IEEE 1588 PTP timestamping hardware. The 120 MHz Cortex-M4F with FPU delivers the cycle budget to run a TCP/IP stack plus real-time protocol handling concurrently with application logic. Engineers typically connect an external 100 Mbit PHY via the RMII interface and use the on-chip 32 KB instruction cache to sustain deterministic interrupt response for sub-millisecond cycle times demanded by EtherCAT DC mode. The cryptographic accelerator is useful for TLS-secured field-device communications.
Recommended
Building Automation Gateway
The ATSAME53J19A-AU-EFP supports building automation gateway designs where BACnet, KNX, Modbus, or LonWorks fieldbus traffic must be bridged to IP networks. The combination of USB 2.0 Full-Speed (for cellular or Wi-Fi dongles), CAN-FD (for HVAC and elevator controllers), and Ethernet (for backbone IP) means a single MCU can act as the system gateway without external protocol converters. The 512 KB Flash accommodates full BACnet/IP stack plus KNXnet/IP routing tables, while 192 KB of SRAM handles concurrent socket buffers. The Cortex-M4F DSP extensions accelerate FFT-based vibration monitoring on building equipment.
Recommended
Smart Energy Metering
For smart energy and sub-metering designs, the ATSAME53J19A-AU-EFP provides the 12-bit 1 Msps ADC needed to sample current and voltage transducers in single-phase or three-phase power meters. The crypto accelerator supports DLMS/COSEM authentication and signing for secure AMI communications, while the Ethernet MAC provides the HAN/LAN interface to concentrators. The 120 MHz core performs real-time RMS, harmonic analysis (THD), and energy accumulation without offloading to a DSP. The AEC-Q100 absence means it is intended for indoor/sub-station metering, not automotive EV charging; for that use case, select the qualified SAM variant.
Recommended
USB Peripheral / CDC Device Controller
The ATSAME53J19A-AU-EFP's USB 2.0 Full-Speed Host/Device controller is ideal for USB peripheral designs such as CDC virtual COM ports, HID devices, or vendor-class instruments. The on-chip USB PHY eliminates external transceiver components, reducing BOM cost. Combined with the Ethernet MAC, the part supports USB-to-Ethernet bridge dongles and USB-attached industrial instrumentation. Engineers should add ESD protection (such as USBLC6-2SC6) on the DP/DM lines and follow USB 2.0 impedance guidelines for the 90-ohm differential pair on the PCB.
Recommended
Graphical HMI Front-End Controller
The ATSAME53J19A-AU-EFP drives small TFT LCD panels via its on-chip graphics peripherals (I2S for audio, SPI/QSPI for display, parallel SMC for TFT) and is appropriate for graphical HMI front-ends on appliances, industrial panels, or medical devices. The 120 MHz Cortex-M4F with 32 KB cache supports emWin or LVGL graphical stacks with reasonable frame rates at QVGA resolution. Combined with the Ethernet MAC, the HMI can act as a panel-mount web-configurable device with HTTPS settings pages. Designers should reserve dedicated DMA channels for display refresh to avoid tearing artifacts.
Recommended
BLDC and PMSM Motor Control
For sensorless or hall-sensored BLDC/PMSM motor control, the ATSAME53J19A-AU-EFP combines Cortex-M4F DSP capability with the PWM timer peripheral to drive three-phase inverter bridges up to 100 kHz switching frequency. The 1 Msps ADC synchronizes with PWM for precise current sampling in Field-Oriented Control (FOC) loops, while the Ethernet MAC enables networked motor drives with industrial feedback. The crypto accelerator supports secure firmware update over the network. For high-current drives (>50 A), pair the MCU with Microchip's gate drivers and the MCP8024 companion three-phase BLDC driver IC.
Recommended
Recommended Products Summary
Engineering reference data for ATSAME53J19A-AU-EFP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAME53J20A-AU-EFP | ATSAME53J18A-AU-EFP | ATSAME51J20A-AUT-EFP | ATSAME51J19A-AUT-EFP | ATSAMD51J19A-AUT-EFP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| 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 | 512 KB | 1 MB | 256 KB | 1 MB | 512 KB | 512 KB |
| Ethernet MAC | Yes (10/100 with PTP) | Yes (10/100 with PTP) | Yes (10/100 with PTP) | No | No | No |
| USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed |
| CAN-FD | Yes | Yes | Yes | Yes | Yes | Yes |
| Crypto Accelerator | AES / SHA / TRNG | AES / SHA / TRNG | AES / SHA / TRNG | AES / SHA / TRNG | AES / SHA / TRNG | AES / SHA / TRNG |
| Drop-in Pin Compatible | Yes (reference) | Yes (upgrade path) | Yes (downgrade path) | Yes (no Ethernet) | Yes (no Ethernet) | Yes (no Ethernet) |
Key Differentiators
- Integrated 10/100 Ethernet MAC with 1588 PTP timestamps (vs ATSAME51J19A-AUT-EFP)
- Largest Flash density in 64-TQFP SAME53 footprint (vs ATSAME53J18A-AU-EFP)
- Hardware Cryptographic Accelerator (vs ATSAMD51J19A-AUT-EFP)
Design Notes
Estimated power analysis: the ATSAME53J19A-AU-EFP at 120 MHz with all peripherals active draws approximately 35-50 mA from VDDIO (3.3V) plus 15-25 mA from VDDCORE (1.1V internal LDO). Use a 4.7 uF X7R ceramic on VDDIN and four 100 nF X7R decoupling capacitors placed within 3 mm of each VDDIO pin group. The internal LDO can supply VDDCORE for designs under ~200 mA; for higher current or low-noise analog mixed-signal designs, switch to an external 1.1V switching regulator (e.g., MIC23050) and disable the internal LDO via the SUPC VREGCTRL register.
Layout for the 64-TQFP package requires keeping the GND return path under the chip short. Place a continuous ground plane on layer 2 directly under the MCU and stitch via rows around the package perimeter at 5 mm spacing. For Ethernet designs, route the RMII traces (50 ohm single-ended to PHY) length-matched within 50 mil, and place the 49.9-ohm RMII termination resistors within 5 mm of the MCU pins. Keep DP/DM USB traces at 90-ohm differential with no splits in the reference plane.
Common pitfalls: (1) Forgetting to configure the crystal oscillator load capacitors - the SAM E53 on-chip load caps default to disabled, leading to no oscillation; consult the SUPC XOSC CTRL register. (2) Enabling the WDT without first clearing the NVMCTRL.FUSES LOCKBIT can lock the MCU permanently - always sequence the NVMCTRL erase operations before enabling WDT. (3) Not declaring attribute ((aligned(4))) for DMA descriptors in IAR/Keil causes silent Ethernet RX overruns. (4) Leaving SWDIO floating in production enables debug access; populate a 10K pull-up on SWDIO per ARM recommendation.
Compliance Information
RoHS and REACH compliant per Microchip product declaration. Not AEC-Q100 qualified - this is an industrial-grade MCU; for automotive designs use a qualified SAM variant from Microchip's automotive lineup. Lead-free matte-tin finish. Halogen-free per Microchip material declaration.
