ATSAMS70J19A-AN - 300MHz Cortex-M7 MCU, 512KB Flash | Microchip
MPN: ATSAMS70J19A-AN ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $13.2 | $13.20 |
| 10 | $11.85 | $118.50 |
| 100 | $10.42 | $1,042.00 |
| 500 | $9.05 | $4,525.00 |
| 1,000 | $8.1 | $8,100.00 |
ATSAMS70J19A-AN Overview
An ARM Cortex-M7 microcontroller is a high-performance 32-bit processor core built on the ARMv7-M architecture, featuring a 6-stage superscalar pipeline, branch prediction, single-precision/double-precision FPU, and tightly-coupled memory (TCM) for deterministic low-latency code execution. It belongs to the broader hierarchy: ARM Cortex-M7 -> ARM Cortex-M family -> 32-bit MCU -> embedded microcontroller -> semiconductor. The Cortex-M7 is purpose-built for DSP workloads and real-time control, replacing legacy DSP ICs in many applications.
Key features of the ATSAMS70J19A-AN include 300 MHz core clock, 512 KB Flash, 256 KB SRAM, 16 KB ICache, 16 KB DCache, USB 2.0 High-Speed with integrated PHY, dual CAN-FD controllers, 10/100 Ethernet MAC with 1588 PTP support, 12-bit AFEC (analog front-end controller) up to 1 MSPS, and an image sensor interface (ISI). The SAM S70 family targets high-performance industrial, automotive infotainment, and IoT edge applications.
The device uses a single-precision/double-precision FPU and DSP extensions, supporting floating-point and SIMD instructions for advanced signal processing. The Cortex-M7 core delivers 1500 CoreMarks and up to 300 DMIPS performance, enabling complex control loops, audio processing, and machine-learning inference at the edge.
Typical applications include industrial motor control, building automation, smart energy meters, automotive infotainment, IoT gateways, point-of-sale terminals, and graphics-enabled HMI with TFT LCD. The Ethernet MAC and CAN-FD bus make it suitable for industrial networking, while the USB HS and image sensor interface enable multimedia endpoints.
When designing with this device, ensure the regulator is sized to handle the worst-case inrush during ADC reference stabilization and PLL lock. The 64-pin LQFP footprint is shared with SAM E70, SAM V70, and SAM V71 family members, easing migration when scaling Flash/RAM or adding CAN-FD/HS USB requirements.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for ATSAMS70J19A-AN — 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 ATSAMS70J19A-AN (same form factor and footprint) — differing in ADC, Ethernet, Operating Temperature, Core Architecture, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAME70J19A-ANT
✅ Drop-In✓ In Stock
$9.2 / Unit
View Datasheet →ATSAME70J19B-AN
✅ Drop-In✓ In Stock
$9.42 / Unit
View Datasheet →ATSAME70J20B-AN
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$12.75 / Unit
View Datasheet →ATSAME70J21A-ANT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$9.6 / Unit
View Datasheet →ATSAME70N19B-AN
✅ Drop-In✓ In Stock
$11.04 / Unit
View Datasheet →ATSAMS70J19A-AN Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M7 with FPU |
| Core Bit Width | 32-bit |
| Maximum Clock Frequency | 300 MHz |
| Program Memory (Flash) | 512 KB (512K x 8) |
| SRAM | 256 KB |
| Cache | 16 KB ICache + 16 KB DCache |
| Operating Voltage Range | 1.62 V to 3.6 V (typical 1.8V/2.5V/3.3V) |
| Package | 64-LQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +105C (industrial) |
| USB Interface | USB 2.0 High-Speed with integrated PHY |
| CAN Bus | 2x CAN-FD controllers |
| Ethernet | 10/100 Mbps MAC with 1588 PTP support |
| ADC | 12-bit AFEC, up to 1 MSPS |
| RoHS Status | Compliant |
| Lead-Free | Yes |
ATSAMS70J19A-AN Pin Configuration
| Pin 1 | PA0 — GPIO/AFEC AFEC0 positive analog input |
| Pin 2 | PA1 — GPIO/AFEC AFEC0 negative analog input |
| Pin 3 | PA2 — GPIO/AFEC AFEC1 positive analog input |
| Pin 4 | PA3 — GPIO/AFEC AFEC1 negative analog input |
| Pin 5 | VDDOUT — Voltage regulator output (1.2V core) |
| Pin 6 | VDDIN — Voltage regulator input |
| Pin 7 | GND — Ground |
| Pin 8 | VDDIO — I/O supply voltage (1.62V-3.6V) |
| Pin 9 | XIN — Crystal oscillator input |
| Pin 10 | XOUT — Crystal oscillator output |
| Pin 11 | NRST — Reset input (active-low) |
| Pin 12 | TDI — JTAG Test Data In |
| Pin 13 | TDO — JTAG Test Data Out |
| Pin 14 | TMS — JTAG Test Mode Select |
| Pin 15 | TCK — JTAG Test Clock |
| Pin 16 | PB0 — GPIO/AFEC AFE0 positive analog input |
| Pin 17 | PB1 — GPIO/AFEC AFE0 negative analog input |
| Pin 18 | PB2 — GPIO/CAN0 CAN RX line |
| Pin 19 | PB3 — GPIO/CAN0 CAN TX line |
| Pin 20 | PB4 — GPIO/USART0 TXD line |
| Pin 21 | PB5 — GPIO/USART0 RXD line |
| Pin 22 | PB6 — GPIO/USART1 TXD line |
| Pin 23 | PB7 — GPIO/USART1 RXD line |
| Pin 24 | VDDIO — I/O supply voltage |
| Pin 25 | GND — Ground |
| Pin 26 | PC0 — GPIO/Ethernet MII/RGMII signal |
| Pin 27 | PC1 — GPIO/Ethernet MII/RGMII signal |
| Pin 28 | PC2 — GPIO/Ethernet MII/RGMII signal |
| Pin 29 | PC3 — GPIO/Ethernet MII/RGMII signal |
| Pin 30 | PC4 — GPIO/TWI0 I2C SDA line |
| Pin 31 | PC5 — GPIO/TWI0 I2C SCL line |
| Pin 32 | PC6 — GPIO/SPI0 MISO line |
| Pin 33 | PC7 — GPIO/SPI0 MOSI line |
| Pin 34 | PC8 — GPIO/SPI0 SPCK line |
| Pin 35 | PC9 — GPIO/SPI0 NPCS0 chip select |
| Pin 36 | PD0 — GPIO/PWM timer output 0 |
| Pin 37 | PD1 — GPIO/PWM timer output 1 |
| Pin 38 | PD2 — GPIO/PWM timer output 2 |
| Pin 39 | PD3 — GPIO/PWM timer output 3 |
| Pin 40 | PD4 — GPIO/HS USB DM data line |
| Pin 41 | PD5 — GPIO/HS USB DP data line |
| Pin 42 | PD6 — GPIO/ISI image sensor data |
| Pin 43 | PD7 — GPIO/ISI image sensor data |
| Pin 44 | PD8 — GPIO/ISI image sensor data |
| Pin 45 | PD9 — GPIO/ISI image sensor data |
| Pin 46 | PD10 — GPIO/ISI image sensor pixel clock |
| Pin 47 | PD11 — GPIO/ISI image sensor VSYNC |
| Pin 48 | PD12 — GPIO/ISI image sensor HSYNC |
| Pin 49 | VDDIO — I/O supply voltage |
| Pin 50 | GND — Ground |
| Pin 51 | PE0 — GPIO/SSC I2S audio data |
| Pin 52 | PE1 — GPIO/SSC I2S audio bit clock |
| Pin 53 | PE2 — GPIO/SSC I2S audio LR clock |
| Pin 54 | PE3 — GPIO/EMAC MDIO data |
| Pin 55 | PE4 — GPIO/EMAC MDC clock |
| Pin 56 | PE5 — GPIO/LCD TFT data |
| Pin 57 | PE6 — GPIO/LCD TFT data |
| Pin 58 | PE7 — GPIO/LCD TFT data |
| Pin 59 | PE8 — GPIO/LCD TFT VSYNC |
| Pin 60 | PE9 — GPIO/LCD TFT HSYNC |
| Pin 61 | PE10 — GPIO/LCD TFT pixel clock |
| Pin 62 | PE11 — GPIO/LCD TFT enable |
| Pin 63 | VDDIO — I/O supply voltage |
| Pin 64 | GND — Ground |
Typical Applications
ATSAMS70J19A-AN is suitable for 6 applications: Industrial Motor Control, Building Automation and HVAC Controllers, Smart Energy Metering, Automotive Infotainment HMI, IoT Edge Gateways and Protocol Converters, Graphics-Enabled HMI with TFT LCD.
Industrial Motor Control
The ATSAMS70J19A-AN fits industrial motor control with its 300 MHz ARM Cortex-M7 DSP extensions executing field-oriented control (FOC) loops in under 10 microseconds, a 12-bit AFEC sampling at 1 MSPS for precise current sensing, and dedicated PWM timer units for three-phase inverter switching. The 256 KB SRAM allows full-speed dual-shunt and triple-shunt sampling buffers without CPU intervention. Its dual CAN-FD interfaces enable CiA 402 and DS402 drive profiles for industrial servo networks, while 64-LQFP pinout exposes enough PWM channels for three-phase + brake + relay control. Power dissipation must be budgeted for the 300 MHz core at full DSP load with industrial-grade ambient temperatures.
Recommended
Building Automation and HVAC Controllers
The ATSAMS70J19A-AN serves building automation controllers with Ethernet MAC supporting BACnet/IP and Modbus TCP, USB 2.0 High-Speed for local HMI programming, and 64-LQFP GPIO sufficient for multi-zone thermostat, damper actuator, and VAV box control. Its -40C to +105C industrial temperature rating handles unconditioned equipment rooms. The Cortex-M7 FPU accelerates PID loops for chiller plant optimization, and the 256 KB SRAM supports BACnet object databases for medium-sized BMS installations. Pin-compatible ATSAME70J19B-AN provides cost reduction when Ethernet is replaced by RS-485 Modbus RTU.
Recommended
Smart Energy Metering
The ATSAMS70J19A-AN fits smart electricity meters with its 12-bit AFEC for accurate voltage and current sensing, 32-bit Cortex-M7 for real-time energy calculation algorithms (Irms, Vrms, active/reactive power), and Ethernet MAC for AMI head-end communication. The 512 KB Flash stores metering firmware plus DLMS/COSEM protocol stacks, while 256 KB SRAM supports energy accumulation buffers. Hardware crypto accelerators and True Random Number Generator enable secure communications per IEC 62056. Operating voltage down to 1.62V suits battery-backed RTC retention during power outages.
Recommended
Automotive Infotainment HMI
The ATSAMS70J19A-AN enables automotive infotainment HMI with its TFT LCD controller driving WVGA displays, image sensor interface (ISI) for rear-view camera input, USB 2.0 High-Speed for media streaming, and CAN-FD for vehicle network integration. The Cortex-M7 with FPU runs Qt and LVGL graphics libraries smoothly, while 256 KB SRAM supports double-buffered frame buffers at QVGA resolution. -40C to +105C operating temperature covers automotive cabin environments, and the 64-LQFP 10x10 mm package fits behind dashboard cluster cutouts with adequate PCB thermal relief.
Recommended
IoT Edge Gateways and Protocol Converters
The ATSAMS70J19A-AN powers industrial IoT edge gateways with its Cortex-M7 running TLS 1.3 stacks, Ethernet MAC for cloud uplink via MQTT/HTTPS, dual CAN-FD for vehicle or factory floor bus aggregation, and USB 2.0 High-Speed for cellular modem tethering. The 512 KB Flash accommodates containerized firmware, while 256 KB SRAM supports TLS session buffers. Its hardware crypto accelerators (AES, SHA, TRNG) enable secure boot and TLS handshakes without external secure elements. Pin-compatible ATSAME70J19A-AN provides lower BOM cost when Ethernet is replaced by WiFi/BLE module uplink.
Recommended
Graphics-Enabled HMI with TFT LCD
The ATSAMS70J19A-AN drives TFT LCD HMI panels with its integrated 2D graphics controller supporting 24-bit color, the 64-LQFP exposing parallel RGB interface pins, and the Cortex-M7 accelerating emWin/PEG graphics libraries. The image sensor interface (ISI) supports camera input for QR code scanning or machine vision. Hardware crypto and secure boot protect HMI firmware from tampering in public-facing kiosks. The 64-LQFP 10x10 mm package fits 3.5-inch to 5-inch panel designs with adequate backlight driver PWM channels.
Recommended
Recommended Products Summary
Engineering reference data for ATSAMS70J19A-AN — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAME70J19A-AN | ATSAME70J19B-AN | ATSAME70J20B-AN | ATSAME70J21A-ANT | ATSAME70N19B-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 | 100-LQFP - DIFFERENT package, NOT drop-in |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 |
| Max Clock Frequency | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz |
| Flash | 512 KB | 512 KB | 512 KB | 1024 KB | 2048 KB | 512 KB |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| Ethernet MAC | Yes (10/100 with 1588 PTP) | No | No | No | No | No |
| USB 2.0 High-Speed PHY | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
Key Differentiators
- Integrated 10/100 Ethernet MAC with IEEE 1588 PTP support (vs ATSAME70J19A-AN)
- Dual CAN-FD controllers vs single CAN-FD on lower-tier variants (vs ATSAML21J18B-AUT)
- 300 MHz Cortex-M7 with double-precision FPU (vs ATSAMG55J19B-MUT (Cortex-M4))
Design Notes
The ATSAMS70J19A-AN integrates a 1.2V LDO regulator that must be loaded with a minimum 10uF ceramic capacitor on VDDOUT pin to maintain stability. Decoupling: place 100nF X7R capacitors on every VDDIO pin pair, and bulk 10uF X5R tantalum or ceramic on the main VDDIO rail. The on-chip voltage regulator draws ~120 mA at 300 MHz peak DSP load; ensure the upstream 3.3V regulator can deliver 200 mA peak with adequate headroom for PLL inrush during startup.
Estimated: At 300 MHz active with full DSP and Ethernet utilization, core power dissipation is approximately 240 mW (P = V * I, where V=1.2V core, I=200 mA). The 64-LQFP package has theta_JA of approximately 50 C/W on a standard 4-layer JEDEC test board, yielding a junction temperature rise of 12C above ambient. At 85C industrial ambient, the junction remains well below the 105C max rated temperature, but enclosed industrial enclosures with limited airflow should add thermal copper pours around the package.
Place the 12 MHz external crystal within 5 mm of XIN/XOUT pins with a grounded guard ring to prevent noise coupling into the PLL. Keep USB 2.0 DP/DM traces at 90-ohm differential impedance with no stubs, and route Ethernet MII/RMII signals as matched-length pairs to minimize skew. The image sensor interface (ISI) data bus should be length-matched within 5 mm across PD6-PD13 to avoid sampling errors at full pixel clock speeds up to 80 MHz.
Do not leave unused GPIO pins floating - configure them as outputs or enable internal pull-ups to prevent leakage and ESD damage. The Cortex-M7 TCM regions must be explicitly remapped during startup; failing to do so results in code executing from slow Flash instead of zero-wait-state TCM, reducing performance by up to 4x. When migrating from SAM E70 to SAM S70, verify Ethernet PHY strap pin defaults; SAM S70 has additional PHY configuration registers absent on SAM E70.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - the SAM S70 family targets industrial and consumer applications; for AEC-Q100 automotive-grade, choose SAM V70Q21 or SAM E70Q21 variants which are AEC-Q100 qualified.
