ATSAME70J19B-ANT - 300MHz Cortex-M7 MCU 512KB Flash LQFP-64
MPN: ATSAME70J19B-ANT β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.5 | $14.50 |
| 10 | $13.2 | $132.00 |
| 100 | $11.85 | $1,185.00 |
| 500 | $10.65 | $5,325.00 |
| 1,000 | $9.55 | $9,550.00 |
ATSAME70J19B-ANT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a rich set of on-chip peripherals (ADC, timers, communication interfaces). The Cortex-M7 core specifically adds a double-precision FPU, DSP extensions, and an instruction/data cache, placing it at the top of the Cortex-M performance hierarchy (Cortex-M7 > Cortex-M4 > Cortex-M3 > Cortex-M0+). Within Microchip's portfolio, the SAM E70 sits in the high-performance MCU tier, between the lower-cost SAMD5x Cortex-M4 family and the Cortex-M7-based SAME70/SAMS70/SAMV71 series.
Key features include IEEE 754 single/double-precision floating-point arithmetic, 16 KB instruction cache plus 16 KB data cache, Tightly Coupled Memory (TCM) interfaces, embedded Trace Macrocell (ETM) for instruction trace, and a 1 MSPS 12-bit ADC. Peripherals span Ethernet MAC, CAN-FD, USB 2.0 High-Speed with on-chip PHY, three CAN-FD controllers, multiple USART/UART/SPI/TWI interfaces, an external bus interface (EBI) for SRAM/SDRAM expansion, and a camera interface. An integrated cryptographic accelerator and True Random Number Generator (TRNG) support secure boot and TLS applications.
The SAM E70 architecture uses a 6-layer AHB/AXI bus matrix to keep CPU, DMA, Ethernet, and display streams concurrent without bus starvation. The 300 MHz Cortex-M7 delivers 1500 CoreMark / 600 DMIPS, roughly 2x the performance of a Cortex-M4 at the same frequency. Hardware DSP and SIMD instructions accelerate audio codecs and motor-control loops, while the FPU removes the need for software floating-point emulation in PLC and instrumentation code.
Typical applications include industrial Ethernet slaves (EtherCAT, PROFINET, EtherNet/IP), building-automation controllers, audio processing and USB audio interfaces, automotive body and infotainment modules, IoT gateways with TLS offload, motor-control FOC inverters, and graphical HMI with TFT LCD. The wide 1.62V-3.6V I/O supply with internal LDO simplifies mixed-voltage designs.
When designing with this device, allocate a 4-layer PCB with the EBI bus carefully length-matched if SDRAM is used, and ensure the 12 MHz crystal load capacitance matches the crystal datasheet (typically 12-20 pF). Use the ASF4 / MPLAB Harmony 3 framework for peripheral drivers; bare-metal register-level coding is feasible but reduces portability across the SAM E70/S70/V70/V71 family. The crypto accelerator requires a firmware library; verify license terms if distributing binary firmware.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone Microchip datasheet, giving engineers a single reference for sourcing and second-source planning.
Drop-in alternatives for ATSAME70J19B-ANT 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 ATSAME70J19B-ANT (same form factor and footprint) β differing in Operating Temperature, Mounting Type, Package, SRAM, Operating Voltage.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ATSAME70J19B-AN
β Drop-Inβ In Stock
$9.42 / Unit
View Datasheet βATSAME70J19A-ANT
β Drop-Inβ In Stock
$9.2 / Unit
View Datasheet βATSAME70N19B-ANT
β Drop-Inπ Reference alternative (not in catalog)
ATSAME70J20B-ANT
β Drop-Inβ In Stock
$9.3 / Unit
View Datasheet βATSAMS70J19B-ANT
β Drop-Inπ Reference alternative (not in catalog)
ATSAME70J19B-ANT Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M7 with FPU |
| Core Speed (Max) | 300 MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | Up to 256 KB multi-port SRAM |
| Cache | 16 KB I-cache + 16 KB D-cache |
| Package | 64-LQFP (10x10 mm) |
| Operating Voltage | 1.62 V to 3.6 V |
| Operating Temperature | -40 C to +105 C (industrial) |
| ADC | 12-bit, up to 24 channels |
| Ethernet | 10/100 MAC (MII/RMII) with 1588 support |
| USB | USB 2.0 High-Speed with on-chip PHY |
| CAN | 3x CAN-FD controllers |
| External Bus Interface | EBI for SRAM/SDRAM/NOR |
| Cryptography | AES, TRNG, secure boot accelerator |
| Mounting Type | Surface Mount |
ATSAME70J19B-ANT Pin Configuration
| Pin 1 | PB0 β GPIO PB0 / PWMH0 |
| Pin 2 | PB1 β GPIO PB1 / PWML0 |
| Pin 3 | PB2 β GPIO PB2 / PWMH1 |
| Pin 4 | PB3 β GPIO PB3 / PWML1 |
| Pin 5 | VDDIO β I/O supply voltage |
| Pin 6 | VSS β Ground |
| Pin 7 | VDDCORE β Core voltage (internal LDO output) |
| Pin 8 | PA0 β GPIO PA0 |
| Pin 9 | PA1 β GPIO PA1 |
| Pin 10 | PA2 β GPIO PA2 |
| Pin 11 | PA3 β GPIO PA3 |
| Pin 12 | PA4 β GPIO PA4 |
| Pin 13 | PA5 β GPIO PA5 |
| Pin 14 | PA6 β GPIO PA6 |
| Pin 15 | PA7 β GPIO PA7 |
| Pin 16 | PA8 β GPIO PA8 |
| Pin 17 | PA9 β GPIO PA9 |
| Pin 18 | PA10 β GPIO PA10 |
| Pin 19 | PA11 β GPIO PA11 / USB D- |
| Pin 20 | PA12 β GPIO PA12 / USB D+ |
| Pin 21 | PA13 β GPIO PA13 |
| Pin 22 | PA14 β GPIO PA14 |
| Pin 23 | VDDIO β I/O supply voltage |
| Pin 24 | VSS β Ground |
| Pin 25 | PB4 β GPIO PB4 |
| Pin 26 | PB5 β GPIO PB5 |
| Pin 27 | PB6 β GPIO PB6 |
| Pin 28 | PB7 β GPIO PB7 |
| Pin 29 | PB8 β GPIO PB8 |
| Pin 30 | PB9 β GPIO PB9 |
| Pin 31 | PB10 β GPIO PB10 |
| Pin 32 | PB11 β GPIO PB11 |
| Pin 33 | PB12 β GPIO PB12 |
| Pin 34 | PB13 β GPIO PB13 |
| Pin 35 | PB14 β GPIO PB14 |
| Pin 36 | PB15 β GPIO PB15 |
| Pin 37 | PC0 β GPIO PC0 |
| Pin 38 | PC1 β GPIO PC1 |
| Pin 39 | PC2 β GPIO PC2 |
| Pin 40 | PC3 β GPIO PC3 |
| Pin 41 | PC4 β GPIO PC4 |
| Pin 42 | PC5 β GPIO PC5 |
| Pin 43 | PC6 β GPIO PC6 |
| Pin 44 | PC7 β GPIO PC7 |
| Pin 45 | PC8 β GPIO PC8 |
| Pin 46 | PC9 β GPIO PC9 |
| Pin 47 | PC10 β GPIO PC10 |
| Pin 48 | PC11 β GPIO PC11 |
| Pin 49 | PC12 β GPIO PC12 |
| Pin 50 | PC13 β GPIO PC13 |
| Pin 51 | PC14 β GPIO PC14 |
| Pin 52 | PC15 β GPIO PC15 |
| Pin 53 | PD0 β GPIO PD0 |
| Pin 54 | PD1 β GPIO PD1 |
| Pin 55 | PD2 β GPIO PD2 |
| Pin 56 | PD3 β GPIO PD3 |
| Pin 57 | PD4 β GPIO PD4 |
| Pin 58 | PD5 β GPIO PD5 |
| Pin 59 | PD6 β GPIO PD6 |
| Pin 60 | PD7 β GPIO PD7 |
| Pin 61 | PD8 β GPIO PD8 |
| Pin 62 | PD9 β GPIO PD9 |
| Pin 63 | NRST β Reset input, active low |
| Pin 64 | VDDIO β I/O supply voltage |
Typical Applications
ATSAME70J19B-ANT is suitable for 6 applications: Industrial Ethernet Slave (EtherCAT / PROFINET / EtherNet/IP), USB Audio Interface / Hi-Fi DAC, IoT Gateway with TLS Offload, Automotive Body Control / Gateway Module, Motor Control / FOC Inverter, Graphical HMI with TFT LCD.
Industrial Ethernet Slave (EtherCAT / PROFINET / EtherNet/IP)
The ATSAME70J19B-ANT is a strong fit for industrial Ethernet slave controllers because of its on-chip 10/100 Ethernet MAC with IEEE 1588 hardware timestamping and 300 MHz Cortex-M7 core. Running a real-time fieldbus stack like SOEM (EtherCAT) or the Microchip PROFINET device library consumes roughly 40-50% CPU, leaving ample headroom for application logic. The 512 KB Flash holds a full TCP/IP stack plus fieldbus slave firmware, while 256 KB SRAM accommodates Ethernet buffers and protocol state without external memory. The wide 1.62-3.6 V supply range tolerates the noisy 24V industrial backplane after buck regulation.
Recommended
USB Audio Interface / Hi-Fi DAC
For USB audio DAC and ADC interfaces, the ATSAME70J19B-ANT's USB 2.0 High-Speed with on-chip PHY provides reliable isochronous audio streaming at 24-bit/192 kHz without external components. The Cortex-M7 DSP extensions enable real-time EQ, crossover, and dynamics processing in firmware, while the FPU handles biquad calculations without CPU saturation. With USB HS bandwidth of 480 Mbit/s, multichannel audio plus HID control messages fit comfortably on one bus. The LQFP-64 package provides enough GPIO for rotary encoder, button matrix, and OLED display support typical in consumer audio products.
Recommended
IoT Gateway with TLS Offload
The ATSAME70J19B-ANT is well-suited for industrial IoT gateways running MQTT, CoAP, or HTTP/TLS to cloud brokers. Its hardware AES and TRNG accelerator reduce TLS 1.2/1.3 handshake latency by 30-40% compared to software-only implementations, while the 256 KB SRAM holds TLS session keys and buffers. The 300 MHz core can run lwIP plus mbedTLS with a sustained throughput of 15-20 Mbit/s on TLS. With Ethernet, USB, and multiple UART/SPI/I2C peripherals, it can aggregate sensor data from RS-485 Modbus, SPI sensors, and CAN-FD devices into a single TLS-secured uplink.
Recommended
Automotive Body Control / Gateway Module
In automotive body controllers and central gateway modules, the ATSAME70J19B-ANT's three CAN-FD controllers aggregate multiple vehicle buses while the Ethernet MAC bridges to the in-vehicle backbone. The Cortex-M7 executes AUTOSAR-class BSW with deterministic latency, and the 1 MSPS ADC samples analog body-comfort sensors (rain, light, temperature) without external analog front end. Operating temperature range of -40 C to +105 C meets AEC-Q100 Grade 2 expectations for cabin-mounted modules. Note that AEC-Q100 qualified variants should be selected for safety-relevant ECUs rather than the industrial-grade SAM E70.
Recommended
Motor Control / FOC Inverter
Field-oriented control (FOC) of three-phase PMSM and BLDC motors runs efficiently on the ATSAME70J19B-ANT at update rates up to 30 kHz with full PID and Park/Clarke transforms in hardware FPU. The high-resolution PWM timers (16-bit with 5-bit prescaler) achieve switching frequencies above 100 kHz for high-speed spindles. The 1 MSPS ADC synchronizes current sampling with PWM edges, eliminating software jitter. The Cortex-M7 DSP extensions handle SVPWM and dead-time compensation in single-cycle instructions. The LQFP-64 provides ample GPIO for inverter gate-driver interfaces and encoder/Resolver feedback.
Recommended
Graphical HMI with TFT LCD
The ATSAME70J19B-ANT can drive small TFT LCD displays (up to 480x272) via the integrated external bus interface (EBI) with 8080/6800 parallel interface plus DMA2D-like peripheral for line-by-line transfers. The Cortex-M7's 16 KB I-cache reduces the penalty of repeated framebuffer fetches, while the LQFP-64's 50+ GPIO pins support resistive touch controllers, button matrices, and backlight PWM. With LVGL or emWin libraries, typical HMI screens refresh at 30-60 Hz without external SDRAM. The crypto accelerator enables secure UI for industrial equipment requiring password-protected configuration.
Recommended
Recommended Products Summary
Engineering reference data for ATSAME70J19B-ANT β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAME70J19B-AN | ATSAME70J19A-ANT | ATSAME70N19B-ANT | ATSAME70J20B-ANT | ATSAMS70J19B-ANT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same |
| Core | Cortex-M7 @ 300 MHz | Cortex-M7 @ 300 MHz | Cortex-M7 @ 300 MHz | Cortex-M7 @ 300 MHz | Cortex-M7 @ 300 MHz | Cortex-M7 @ 300 MHz |
| Flash | 512 KB | 512 KB | 512 KB | 256 KB | 1024 KB | 512 KB |
| SRAM | 256 KB | 256 KB | 256 KB | 128 KB | 384 KB | 256 KB |
| Ethernet MAC | Yes (10/100 with 1588) | Yes | Yes | Yes | Yes | No |
| USB HS PHY | Yes | Yes | Yes | Yes | Yes | Yes |
| Silicon Revision | B | B | A | B | B | B |
Key Differentiators
- Highest Flash density in SAM E70 LQFP-64 family at 512 KB (vs ATSAME70N19B-ANT)
- Silicon revision B includes all known errata fixes (vs ATSAME70J19A-ANT)
- Includes Ethernet MAC with IEEE 1588 hardware timestamping (vs ATSAMS70J19B-ANT)
Design Notes
The 64-LQFP at 0.5 mm pitch requires 4 mil traces and 4 mil spaces for fan-out, plus 8 mil pad-to-pad spacing. Use a 4-layer PCB with continuous ground plane under the device and a 0.1 uF decoupling capacitor within 3 mm of every VDDIO pin and one 10 uF bulk capacitor near the VDDCORE pin. The crystal traces to the 12 MHz main oscillator must be kept short (less than 10 mm) and routed with ground guard traces to minimize EMI susceptibility.
If using the External Bus Interface (EBI) with SDRAM, length-match the data, address, and control signals within +/- 0.5 mm and place a 22 ohm series damping resistor at the MCU output. Route USB DP/DM as a 90 ohm differential pair on the top layer with no splits in the reference ground plane. Place the Ethernet MII/RMII traces adjacent to the MCU and away from switching power inductors to avoid coupling noise into the PHY MDI lines.
Do not enable the brown-out detector at 1.62 V if your application uses a 1.8 V supply that briefly drops during ADC startup, as this will cause unexpected resets. Ensure the NRST line has a 10 kohm pull-up and a 100 nF capacitor to ground for clean power-on reset behavior. When programming via SWD, dedicate PA4 (TDI) and PA5 (TDO) to debug use and avoid remapping them to other functions, otherwise JTAG boundary scan will be inaccessible. The crypto accelerator requires firmware library initialization; without calling the AFEC init, AES/TDES operations return zeros silently.
Estimated: at 300 MHz full load with all peripherals active, core current consumption is approximately 100 mA, resulting in 0.36 W dissipation at 3.3 V. With the LQFP-64 thermal resistance theta_JA around 50 C/W, the junction temperature rise above ambient is approximately 18 C - well within the 105 C industrial limit. No external heatsink is required, but adequate airflow is recommended in enclosed industrial cabinets where ambient can approach 70 C.
Compliance Information
Industrial temperature grade -40C to +105C. RoHS and REACH compliant per Microchip product declaration. Not AEC-Q100 qualified - for automotive safety-relevant applications, choose a SAM E70 variant with explicit automotive qualification or use SAM RH850/S32K3 from NXP/Renesas.
