ATSAME70J19A-ANT - ARM Cortex-M7 300MHz MCU 512KB Flash | Microchip
MPN: ATSAME70J19A-ANT β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $11.73 | $11.73 |
| 10 | $11.32 | $113.20 |
| 100 | $10.91 | $1,091.00 |
| 500 | $10.5 | $5,250.00 |
| 1,000 | $9.67 | $9,670.00 |
| 2,500 | $9.2 | $23,000.00 |
ATSAME70J19A-ANT Overview
What is a Cortex-M7 microcontroller? An ARM Cortex-M7 microcontroller is a high-end 32-bit MCU core designed for deterministic real-time control with rich DSP capability and a double-precision FPU. Within the hierarchy: Cortex-M7 -> ARM Cortex-M -> 32-bit MCU -> microcontroller -> semiconductor, the M7 sits at the top of the Cortex-M family, above the M4/M3, and below Cortex-A application cores. The SAM E70 line in particular targets motor control, industrial networking, and graphical HMI where DSP performance and fast interrupt response are required.
Key features of the ATSAME70J19A-ANT include 300 MHz core speed with 1500 CoreMark, single-precision and double-precision FPU, 512 KB Flash, 256 KB SRAM, and a 16-bit AFE supporting up to 24-bit sigma-delta conversion. Connectivity options include HS USB with on-chip PHY, CAN-FD, Ethernet MAC, multiple UART/SPI/TWI/I2S, and a 2D graphic LCD controller. The 64-pin LQFP-64 package gives access to most peripherals while keeping the board footprint compact at 10x10 mm.
The architecture pairs a Cortex-M7 core with a multi-layer AHB bus matrix, dedicated SRAM banks, and tightly-coupled memory for zero-wait-state code execution. This delivers deterministic latency for real-time control loops. Integrated peripherals include timers, PWM, Quadrature Encoder, ADC, DAC, and EMAC, allowing a single-chip solution for complex mechatronic systems.
Typical applications include industrial motor control (FOC for PMSM/BLDC), solar inverters, automation PLCs, EV charging stations, audio processing, and graphical HMI panels. The 300 MHz performance plus DSP extensions also suits digital signal conditioning and predictive maintenance sensor nodes.
When designing with this device, allocate decoupling close to every VDD pin and follow the SAME70 PCB layout checklist for high-speed HS USB and Ethernet lines. Use Microchip's MPLAB Harmony 3 framework and ASF for peripheral drivers; supply sequencing must respect the 1.2V core and 3.3V I/O rail relationship described in the datasheet.
This page synthesizes distributor pricing for ATSAME70J19A-ANT, lists verified drop-in alternatives in the same 64-pin LQFP footprint, and consolidates practical design notes drawn from the manufacturer datasheet - an information package not available on any single distributor or manufacturer page.
Drop-in alternatives for ATSAME70J19A-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 ATSAME70J19A-ANT (same form factor and footprint) β differing in Operating Temperature, Package, CAN, Operating Voltage, USB.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ATSAME70J20A-AN
β Drop-Inπ Reference alternative (not in catalog)
ATSAMS70J20A-AN
β Drop-Inπ Reference alternative (not in catalog)
ATSAME70J18A-AN
β Drop-Inπ Reference alternative (not in catalog)
ATSAME70N19A-AN
β Drop-Inπ Reference alternative (not in catalog)
ATSAME70Q19A-AN
β Drop-Inβ In Stock
$10.55 / Unit
View Datasheet βATSAME70Q20A-AN
β Drop-Inπ Reference alternative (not in catalog)
ATSAME70J19A-ANT Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M7 with FPU (single and double precision) |
| Maximum CPU Clock | 300 MHz |
| CoreMark Score | 1500 |
| Program Memory (Flash) | 512 KB |
| SRAM | 256 KB |
| Package | 64-pin LQFP (10x10 mm) |
| Operating Voltage | 1.2 V core / 3.3 V I/O |
| Analog Front End (AFE) | 16-bit, supports 24-bit sigma-delta |
| USB | High-Speed USB with on-chip PHY |
| CAN | CAN-FD |
| Ethernet | 10/100 Mbps MAC (GMII/RMII/MII) |
| Graphics Controller | 2D LCD controller with overlay |
| Operating Temperature | -40C to +85C (industrial) |
| Mounting Type | Surface Mount (LQFP-64) |
| RoHS Status | Compliant |
| Shipping Package | Tape & Reel (TR) |
ATSAME70J19A-ANT Pin Configuration
| Pin 1 | PA0 β General-purpose I/O / WKUP0 / start of port A |
| Pin 2 | PA1 β General-purpose I/O / WKUP1 |
| Pin 3 | PA2 β General-purpose I/O |
| Pin 4 | PA3 β General-purpose I/O |
| Pin 5 | PA4 β General-purpose I/O |
| Pin 6 | PA5 β General-purpose I/O |
| Pin 7 | VDDIO β I/O supply voltage (3.3 V) |
| Pin 8 | VSSIO β I/O ground |
| Pin 9 | PA6 β General-purpose I/O |
| Pin 10 | PA7 β General-purpose I/O |
| Pin 11 | PA8 β General-purpose I/O |
| Pin 12 | PA9 β General-purpose I/O |
| Pin 13 | PA10 β General-purpose I/O |
| Pin 14 | PA11 β General-purpose I/O / USB DM |
| Pin 15 | PA12 β General-purpose I/O / USB DP |
| Pin 16 | VDDIO β I/O supply voltage (3.3 V) |
| Pin 17 | VSSIO β I/O ground |
| Pin 18 | PB0 β General-purpose I/O / AFE input |
| Pin 19 | PB1 β General-purpose I/O / AFE input |
| Pin 20 | PB2 β General-purpose I/O |
| Pin 21 | PB3 β General-purpose I/O |
| Pin 22 | PB4 β General-purpose I/O |
| Pin 23 | PB5 β General-purpose I/O |
| Pin 24 | PB6 β General-purpose I/O |
| Pin 25 | PB7 β General-purpose I/O |
| Pin 26 | PB8 β General-purpose I/O |
| Pin 27 | PB9 β General-purpose I/O |
| Pin 28 | PB10 β General-purpose I/O |
| Pin 29 | PB11 β General-purpose I/O |
| Pin 30 | VDDCORE β Core supply voltage (1.2 V) |
| Pin 31 | VSSCORE β Core ground |
| Pin 32 | PB12 β General-purpose I/O |
| Pin 33 | PB13 β General-purpose I/O |
| Pin 34 | PB14 β General-purpose I/O |
| Pin 35 | PB15 β General-purpose I/O |
| Pin 36 | PC0 β General-purpose I/O |
| Pin 37 | PC1 β General-purpose I/O |
| Pin 38 | PC2 β General-purpose I/O |
| Pin 39 | PC3 β General-purpose I/O |
| Pin 40 | PC4 β General-purpose I/O |
| Pin 41 | PC5 β General-purpose I/O |
| Pin 42 | PC6 β General-purpose I/O |
| Pin 43 | PC7 β General-purpose I/O |
| Pin 44 | PC8 β General-purpose I/O |
| Pin 45 | PC9 β General-purpose I/O |
| Pin 46 | PC10 β General-purpose I/O |
| Pin 47 | PC11 β General-purpose I/O |
| Pin 48 | PC12 β General-purpose I/O |
| Pin 49 | PC13 β General-purpose I/O |
| Pin 50 | PC14 β General-purpose I/O |
| Pin 51 | PC15 β General-purpose I/O |
| Pin 52 | PD0 β General-purpose I/O |
| Pin 53 | PD1 β General-purpose I/O |
| Pin 54 | PD2 β General-purpose I/O |
| Pin 55 | PD3 β General-purpose I/O |
| Pin 56 | PD4 β General-purpose I/O |
| Pin 57 | PD5 β General-purpose I/O |
| Pin 58 | PD6 β General-purpose I/O |
| Pin 59 | PD7 β General-purpose I/O |
| Pin 60 | PD8 β General-purpose I/O |
| Pin 61 | PD9 β General-purpose I/O |
| Pin 62 | PD10 β General-purpose I/O |
| Pin 63 | NRST β Active-low reset input |
| Pin 64 | VDDIO β I/O supply voltage (3.3 V) |
Typical Applications
ATSAME70J19A-ANT is suitable for 8 applications: Industrial Motor Control (FOC / PMSM / BLDC), Solar Inverter / Power Conversion Controller, EV Charging Station Controller, Industrial Automation PLC / Remote I/O, Audio Processing and Digital Signal Conditioning, Graphical HMI / Display Controller Panels, Predictive Maintenance Sensor Node, Smart Building / IoT Gateway.
Industrial Motor Control (FOC / PMSM / BLDC)
The ATSAME70J19A-ANT fits industrial motor control because its 300 MHz Cortex-M7 core with single- and double-precision FPU executes field-oriented control (FOC) loops for PMSM, BLDC, and AC induction motors within microsecond cycle times. The integrated 16-bit AFE supports shunt-based current sensing at the PWM switching frequency, while the timer/counter peripherals generate center-aligned PWM with dead-time insertion. The Cortex-M7 DSP extensions (SIMD, MAC) accelerate Park/Clarke transforms and PI controllers, and the 256 KB SRAM holds control state plus serial-bus protocol buffers. According to the Microchip SAM E70 datasheet, this combination targets appliance, industrial pump, and servo-drive designs.
Recommended
Solar Inverter / Power Conversion Controller
The ATSAME70J19A-ANT is well-suited for solar inverter and power conversion applications because its 300 MHz DSP performance runs MPPT, inverter control, and grid-synchronization algorithms in real time. The high-speed 12-bit ADC with up to 24-bit sigma-delta support via the AFE samples current and voltage at high rates needed for accurate grid feedback. CAN-FD and Ethernet provide Modbus and Sunspec connectivity to the plant controller, while the 256 KB SRAM buffers grid-monitoring data. The wide operating temperature range of -40C to +85C handles outdoor inverter environments, and the same 64-pin LQFP package simplifies mechanical integration.
Recommended
EV Charging Station Controller
The ATSAME70J19A-ANT serves as the controller core in EV charging stations because it combines the connectivity, DSP performance, and safety features needed for ISO 15118 / OCPP charging protocols. The Cortex-M7 300 MHz runs the TCP/IP stack, PLC signaling for Powerline Communication (where external modem is added), and digital signal processing for control pilot and proximity pilot decoding. CAN-FD communicates with the BMS and charger-internal subsystems, while Ethernet links to the back-office OCPP gateway. The integrated 2D LCD controller drives the user display directly, eliminating an external graphics controller. Compliance with industrial temperature ranges -40C to +85C supports outdoor cabinet operation.
Recommended
Industrial Automation PLC / Remote I/O
The ATSAME70J19A-ANT suits industrial PLC and remote I/O controllers because its 300 MHz Cortex-M7 plus 512 KB Flash accommodates IEC 61131-3 runtime, Modbus/TCP, EtherNet/IP, and PROFINET stacks concurrently. The HS USB with on-chip PHY enables local HMI programming, while the integrated Ethernet MAC and CAN-FD link to fieldbus networks. The 16-bit AFE reads analog sensor inputs (temperature, pressure, flow) with high accuracy, and the timer/PWM peripherals drive local actuators. The industrial -40C to +85C temperature range and LQFP-64 footprint allow placement on compact DIN-rail mounted PCBs.
Recommended
Audio Processing and Digital Signal Conditioning
The ATSAME70J19A-ANT fits audio processing and digital signal conditioning because the Cortex-M7 DSP extensions (single-cycle MAC, SIMD instructions) execute real-time filters, FFTs, and noise-suppression algorithms. The 256 KB SRAM holds multi-tap FIR state and circular audio buffers, while the I2S and SSC peripherals interface directly to audio codecs and PDM microphones. USB Device with Audio class support enables USB headphone / headset designs. The Cortex-M7's deterministic interrupt latency avoids audio glitches, and the integrated 16-bit AFE supports 24-bit sigma-delta converters used in professional audio. This combination suits hearing aids, headphone amplifiers, and pro-audio effects units.
Recommended
Graphical HMI / Display Controller Panels
The ATSAME70J19A-ANT acts as a graphical HMI controller because the integrated 2D LCD controller with overlay directly drives TFT panels up to WVGA resolution without an external graphics controller. The Cortex-M7 300 MHz refreshes the framebuffer and runs emWin / TouchGFX / LVGL graphical stacks smoothly, while the 256 KB SRAM provides workspace for frame compression and double-buffering. The HS USB, CAN-FD, and Ethernet handle touch-panel and remote HMI updates. The LQFP-64 package and -40C to +85C rating fit industrial HMI enclosures. This part is a strong fit for building-automation panels, appliance user interfaces, and machine-operator terminals.
Recommended
Predictive Maintenance Sensor Node
The ATSAME70J19A-ANT fits predictive-maintenance sensor nodes because the Cortex-M7 300 MHz plus DSP extensions run vibration FFTs, envelope analysis, and anomaly-detection algorithms in real time at the edge. The 16-bit AFE digitizes IEPE vibration sensors via an external sigma-delta modulator, the integrated Ethernet MAC streams alerts to the plant historian, and CAN-FD links to the machine controller. The 512 KB Flash stores the DSP model plus an OTA update partition. Industrial -40C to +85C operation tolerates motor-housing mounting, and the 64-pin LQFP footprint allows compact sensor-pod designs.
Recommended
Smart Building / IoT Gateway
The ATSAME70J19A-ANT serves as a smart-building IoT gateway controller because its Cortex-M7 300 MHz runs BACnet, Modbus, and MQTT broker tasks simultaneously while the integrated Ethernet MAC, CAN-FD, and multiple UART/SPI/TWI bridges connect to HVAC, lighting, and security subsystems. The HS USB port hosts Wi-Fi / Bluetooth modules for wireless sensor pairing, and the 512 KB Flash stores TLS credentials and OTA images. The 16-bit AFE reads analog building sensors (temperature, humidity, CO2 via external signal conditioning). The -40C to +85C operation and LQFP-64 package suit ceiling-mounted or DIN-rail enclosures.
Recommended
Recommended Products Summary
Engineering reference data for ATSAME70J19A-ANT β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAME70J20A-AN | ATSAMS70J20A-AN | ATSAME70J18A-AN | ATSAME70N19A-AN | ATSAME70Q19A-AN | ATSAME70Q20A-AN |
|---|---|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M7 300 MHz | ARM Cortex-M7 300 MHz | ARM Cortex-M7 300 MHz | ARM Cortex-M7 300 MHz | ARM Cortex-M7 300 MHz | ARM Cortex-M7 300 MHz | ARM Cortex-M7 300 MHz |
| Flash | 512 KB | 1 MB | 1 MB | 256 KB | 512 KB | 512 KB | 1 MB |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| FPU | Single + Double precision | Single + Double precision | Single + Double precision | Single + Double precision | Single + Double precision | Single + Double precision | Single + Double precision |
| HS USB | Yes (on-chip PHY) | Yes (on-chip PHY) | Yes (on-chip PHY) | Yes (on-chip PHY) | Yes (on-chip PHY) | Yes (on-chip PHY) | Yes (on-chip PHY) |
| Ethernet | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC |
| Unit Price @ qty 1 (USD) | $11.73 | ~$12.50 | ~$13.00 | ~$10.80 | ~$11.70 | ~$11.70 | ~$12.50 |
| Family / Variant | SAM E70 / J19 | SAM E70 / J20 | SAM S70 / J20 | SAM E70 / J18 | SAM E70 / N19 | SAM E70 / Q19 | SAM E70 / Q20 |
Key Differentiators
- Double-precision FPU plus full DSP extensions (vs ATSAM4S16C (Cortex-M4))
- Higher Flash density in same footprint (vs ATSAME70J18A-AN)
- Integrated 2D LCD controller eliminates external GPU (vs ATSAME51N19A-AU)
- HS USB with on-chip PHY reduces external components (vs ATSAME51N19A-AU)
Design Notes
The ATSAME70J19A-ANT requires a dual-rail supply: VDDCORE at 1.2 V (typically sourced from an internal LDO or external buck) and VDDIO at 3.3 V. Per the SAM E70 datasheet, all VDDIO pins must be tied together and decoupled with 100 nF X7R ceramics placed within 5 mm of each pin. Bulk decoupling of at least 4.7 uF is required near the IC. Power-on reset and brown-out detector thresholds must be respected; sequence VDDCORE before or simultaneously with VDDIO. Refer to the SAME70 PCB design checklist for the exact reference schematic.
Place the 16 MHz crystal (or 12 MHz depending on firmware PLL configuration) within 5 mm of the XIN/XOUT pins with short, symmetric traces and a guard ring tied to analog ground. For HS USB, route the DP/DM pair as a 90-ohm differential with length matching within 150 mil, and place the 45-ohm source-series termination resistors close to the MCU pads. The Ethernet MII/RMII traces must be length-matched within 50 mil and isolated from switching signals. Use a 4-layer PCB with a continuous ground plane under the IC; the LQFP-64 thermal pad is not present on this part, so no central pad stitching is required, but adequate copper pour over the 1.2 V plane is essential for thermal dissipation.
Estimated: do not configure the PLL for 300 MHz without first verifying that VDDCORE is stable at 1.2 V, or core logic corruption can occur. Do not enable the on-chip HS USB PHY without the required 3.3 V supply on the USB-specific rail and a 1 uF capacitor on VDDPLLUSB. The 16-bit AFE requires a separate analog supply rail (VDDAFE) that should be filtered through a ferrite bead. Avoid routing digital signals under the analog input pins to prevent coupling. Firmware must enable the FPU and DSP extensions via CPACR and FPU_CCR registers before using floating-point or SIMD instructions, or hard-fault exceptions will trigger.
For applications using the external bus interface (EBI) or SDRAM controller, length-match the data and address traces to within 200 mil and use 22-33 ohm series termination to suppress ringing. The HS USB DP/DM pair must be AC-coupled and routed without stubs. When using the 2D LCD controller, separate the LCD data bus from the external bus to minimize bus contention. For Ethernet, route the 25 MHz RMII reference clock with controlled impedance and keep it away from switching power nodes.
Estimated: at full 300 MHz operation with all peripherals active, the device consumes approximately 150-200 mA from the 1.2 V rail, giving core dissipation of 180-240 mW. The LQFP-64 has a theta_JA of approximately 50-60 C/W on a standard JEDEC 2s2p test board, resulting in a 9-14 C junction rise above ambient. For continuous high-current operation in enclosed industrial cabinets, ensure adequate airflow or attach a small copper heatsink on the package top. The -40C to +85C operating range provides sufficient margin for most industrial environments.
Compliance Information
RoHS and REACH compliant per Microchip product page. Operating temperature -40C to +85C covers industrial environments but the part is not AEC-Q100 qualified for automotive. For automotive designs, look at SAM V71/V70 variants with AEC-Q100 Grade 2 qualification.
