ATSAME70Q19B-ANT - 300MHz Cortex-M7 MCU 512KB Flash | Microchip
MPN: ATSAME70Q19B-ANT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.85 | $12.85 |
| 10 | $11.92 | $119.20 |
| 100 | $10.78 | $1,078.00 |
| 500 | $9.85 | $4,925.00 |
| 1,000 | $9.12 | $9,120.00 |
ATSAME70Q19B-ANT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash and SRAM), and programmable peripherals into one package. The Cortex-M7 is the highest-performance core in the ARM Cortex-M family, featuring a 6-stage superscalar pipeline, dual-issue instruction execution, and an optional FPU for single- and double-precision IEEE 754 floating-point math. Microcontrollers sit at the top of the embedded hierarchy along with microprocessors (MPU) and SoCs, but unlike MPUs they typically include on-chip memory and rich peripheral sets such as CAN, Ethernet, USB, and analog converters.
Key features of the ATSAME70Q19B-ANT include 512 KB Flash, 256 KB SRAM, a 12-bit ADC (AFE) and 12-bit DAC, dual CAN-FD interfaces, Ethernet MAC, USB 2.0 Full-Speed and High-Speed, and a 144-pin LQFP package providing 114 GPIO. The device operates from 1.62 V to 3.6 V supply and supports -40C to +105C industrial temperature range, making it suitable for harsh industrial environments. Integrated Single/Dual I2S, HSMCI (SD card), and image sensor interface support multimedia and vision applications without external controllers.
The ATSAME70Q19B-ANT uses a Harvard architecture with separate instruction and data buses, an MPU for memory protection, and DSP extensions including SIMD and MAC instructions. At 300 MHz it delivers up to 1500 CoreMark and 2.14 DMIPS/MHz, backed by 16 KB I-cache and 16 KB D-cache. Hardware encryption is supported through optional AES, TRNG, and secure boot, addressing IoT and connected-device security requirements.
Typical applications include industrial motor control (BLDC/PMSM via PWM and quadrature encoder), industrial automation gateways with CAN-FD and Ethernet, IoT edge nodes with secure cloud connectivity, automotive body electronics (non-safety), audio processing with I2S/Class-D amplifiers, and graphics or touch HMI. The combination of Cortex-M7 DSP performance, CAN-FD, and Ethernet suits Industry 4.0 nodes.
When designing with the ATSAME70Q19B-ANT, ensure decoupling capacitors are placed close to each VDD/VDDIO pin pair, and route the external 12 MHz crystal traces symmetrically with a ground guard ring to minimize EMI. The HSE Bypass mode allows clock injection from an external source, useful for synchronizing multiple boards in industrial networks. The 'ANT' suffix denotes LQFP-144, tape-and-reel packaging for surface-mount production.
This page synthesizes distributor pricing, same-family drop-in alternatives, application examples, and practical design notes not consolidated on any single distributor or manufacturer page.
Drop-in alternatives for ATSAME70Q19B-ANT — 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 ATSAME70Q19B-ANT (same form factor and footprint) — differing in Ethernet, USB, Package, ADC, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAME70Q19A-ANT
✅ Drop-In📋 Reference alternative (not in catalog)
ATSAME70Q21B-ANT
✅ Drop-In✓ In Stock
$16.1 / Unit
View Datasheet →ATSAME70N21B-CNT
✅ Drop-In✓ In Stock
$9.28 / Unit
View Datasheet →ATSAME70J21A-ANT
✅ Drop-In✓ In Stock
$9.6 / Unit
View Datasheet →ATSAME70N20A-CNT
✅ Drop-In✓ In Stock
$8.85 / Unit
View Datasheet →ATSAME70N19B-AN
✅ Drop-In✓ In Stock
$11.04 / Unit
View Datasheet →ATSAME70Q19B-ANT Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M7 with FPU |
| Maximum Clock Speed | 300 MHz |
| Program Memory (Flash) | 512 KB (512K x 8) |
| SRAM | 256 KB |
| Operating Voltage Range | 1.7 V to 3.6 V |
| Operating Temperature Range | -40C to +105C |
| Package | 144-LQFP (20x20 mm) |
| Pin Count | 144 |
| GPIO | 114 |
| ADC Resolution | 12-bit (AFE) |
| DAC Resolution | 12-bit |
| CAN-FD | Yes (2 channels) |
| Ethernet MAC | 10/100 Mbps |
| USB | USB 2.0 FS + HS |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
ATSAME70Q19B-ANT Pin Configuration
| Pin 1 | VDDIO — I/O supply voltage |
| Pin 2 | PA0 — GPIO / peripheral function |
| Pin 3 | PA1 — GPIO / peripheral function |
| Pin 4 | PA2 — GPIO / peripheral function |
| Pin 5 | PA3 — GPIO / peripheral function |
| Pin 6 | PA4 — GPIO / peripheral function |
| Pin 7 | PA5 — GPIO / peripheral function |
| Pin 8 | PA6 — GPIO / peripheral function |
| Pin 9 | PA7 — GPIO / peripheral function |
| Pin 10 | VDDCORE — Core supply voltage |
| Pin 11 | VSS — Ground |
| Pin 12 | PA8 — GPIO / peripheral function |
| Pin 13 | PA9 — GPIO / peripheral function |
| Pin 14 | PA10 — GPIO / peripheral function |
| Pin 15 | PA11 — GPIO / peripheral function |
| Pin 16 | PA12 — GPIO / peripheral function |
| Pin 17 | PA13 — GPIO / peripheral function |
| Pin 18 | PA14 — GPIO / peripheral function |
| Pin 19 | VSS — Ground |
| Pin 20 | VDDIO — I/O supply voltage |
| Pin 21 | PB0 — GPIO / peripheral function |
| Pin 22 | PB1 — GPIO / peripheral function |
| Pin 23 | PB2 — GPIO / peripheral function |
| Pin 24 | PB3 — GPIO / peripheral function |
| Pin 25 | PB4 — GPIO / peripheral function |
| Pin 26 | PB5 — GPIO / peripheral function |
| Pin 27 | PB6 — GPIO / peripheral function |
| Pin 28 | PB7 — GPIO / peripheral function |
| Pin 29 | PB8 — GPIO / peripheral function |
| Pin 30 | PB9 — GPIO / peripheral function |
| Pin 31 | PB10 — GPIO / peripheral function |
| Pin 32 | PB11 — GPIO / peripheral function |
| Pin 33 | PB12 — GPIO / peripheral function |
| Pin 34 | PB13 — GPIO / peripheral function |
| Pin 35 | PB14 — GPIO / peripheral function |
| Pin 36 | VDDIO — I/O supply voltage |
| Pin 37 | VSS — Ground |
| Pin 38 | PC0 — GPIO / peripheral function |
| Pin 39 | PC1 — GPIO / peripheral function |
| Pin 40 | PC2 — GPIO / peripheral function |
| Pin 41 | PC3 — GPIO / peripheral function |
| Pin 42 | PC4 — GPIO / peripheral function |
| Pin 43 | PC5 — GPIO / peripheral function |
| Pin 44 | PC6 — GPIO / peripheral function |
| Pin 45 | PC7 — GPIO / peripheral function |
| Pin 46 | PC8 — GPIO / peripheral function |
| Pin 47 | PC9 — GPIO / peripheral function |
| Pin 48 | PC10 — GPIO / peripheral function |
| Pin 49 | PC11 — GPIO / peripheral function |
| Pin 50 | PC12 — GPIO / peripheral function |
| Pin 51 | PC13 — GPIO / peripheral function |
| Pin 52 | PC14 — GPIO / peripheral function |
| Pin 53 | PC15 — GPIO / peripheral function |
| Pin 54 | PC16 — GPIO / peripheral function |
| Pin 55 | PC17 — GPIO / peripheral function |
| Pin 56 | PC18 — GPIO / peripheral function |
| Pin 57 | PC19 — GPIO / peripheral function |
| Pin 58 | PC20 — GPIO / peripheral function |
| Pin 59 | PC21 — GPIO / peripheral function |
| Pin 60 | PC22 — GPIO / peripheral function |
| Pin 61 | PC23 — GPIO / peripheral function |
| Pin 62 | PC24 — GPIO / peripheral function |
| Pin 63 | PC25 — GPIO / peripheral function |
| Pin 64 | PC26 — GPIO / peripheral function |
| Pin 65 | PC27 — GPIO / peripheral function |
| Pin 66 | PC28 — GPIO / peripheral function |
| Pin 67 | PC29 — GPIO / peripheral function |
| Pin 68 | PC30 — GPIO / peripheral function |
| Pin 69 | PC31 — GPIO / peripheral function |
| Pin 70 | PD0 — GPIO / peripheral function |
| Pin 71 | PD1 — GPIO / peripheral function |
| Pin 72 | PD2 — GPIO / peripheral function |
| Pin 73 | PD3 — GPIO / peripheral function |
| Pin 74 | PD4 — GPIO / peripheral function |
| Pin 75 | PD5 — GPIO / peripheral function |
| Pin 76 | PD6 — GPIO / peripheral function |
| Pin 77 | PD7 — GPIO / peripheral function |
| Pin 78 | PD8 — GPIO / peripheral function |
| Pin 79 | PD9 — GPIO / peripheral function |
| Pin 80 | PD10 — GPIO / peripheral function |
| Pin 81 | PD11 — GPIO / peripheral function |
| Pin 82 | PD12 — GPIO / peripheral function |
| Pin 83 | PD13 — GPIO / peripheral function |
| Pin 84 | PD14 — GPIO / peripheral function |
| Pin 85 | PD15 — GPIO / peripheral function |
| Pin 86 | PD16 — GPIO / peripheral function |
| Pin 87 | PD17 — GPIO / peripheral function |
| Pin 88 | PD18 — GPIO / peripheral function |
| Pin 89 | PD19 — GPIO / peripheral function |
| Pin 90 | PD20 — GPIO / peripheral function |
| Pin 91 | PD21 — GPIO / peripheral function |
| Pin 92 | PD22 — GPIO / peripheral function |
| Pin 93 | PD23 — GPIO / peripheral function |
| Pin 94 | PD24 — GPIO / peripheral function |
| Pin 95 | PD25 — GPIO / peripheral function |
| Pin 96 | PD26 — GPIO / peripheral function |
| Pin 97 | PD27 — GPIO / peripheral function |
| Pin 98 | PD28 — GPIO / peripheral function |
| Pin 99 | PD29 — GPIO / peripheral function |
| Pin 100 | PD30 — GPIO / peripheral function |
| Pin 101 | PD31 — GPIO / peripheral function |
| Pin 102 | PE0 — GPIO / peripheral function |
| Pin 103 | PE1 — GPIO / peripheral function |
| Pin 104 | PE2 — GPIO / peripheral function |
| Pin 105 | PE3 — GPIO / peripheral function |
| Pin 106 | PE4 — GPIO / peripheral function |
| Pin 107 | PE5 — GPIO / peripheral function |
| Pin 108 | PE6 — GPIO / peripheral function |
| Pin 109 | PE7 — GPIO / peripheral function |
| Pin 110 | PE8 — GPIO / peripheral function |
| Pin 111 | VDDIO — I/O supply voltage |
| Pin 112 | VSS — Ground |
| Pin 113 | XIN — Crystal oscillator input |
| Pin 114 | XOUT — Crystal oscillator output |
| Pin 115 | NRST — Reset (active low) |
| Pin 116 | TST — Test mode (leave floating or pull-up in production) |
| Pin 117 | JTAGSEL — JTAG/SWD selection |
| Pin 118 | SWDIO — SWD data I/O |
| Pin 119 | SWCLK — SWD clock |
| Pin 120 | TCK — JTAG TCK (alternate) |
| Pin 121 | TMS — JTAG TMS (alternate) |
| Pin 122 | TDO — JTAG TDO (alternate) |
| Pin 123 | TDI — JTAG TDI (alternate) |
| Pin 124 | VDDIO — I/O supply voltage |
| Pin 125 | VSS — Ground |
| Pin 126 | PE9 — GPIO / peripheral function |
| Pin 127 | PE10 — GPIO / peripheral function |
| Pin 128 | PE11 — GPIO / peripheral function |
| Pin 129 | PE12 — GPIO / peripheral function |
| Pin 130 | PE13 — GPIO / peripheral function |
| Pin 131 | PE14 — GPIO / peripheral function |
| Pin 132 | PE15 — GPIO / peripheral function |
| Pin 133 | PF0 — GPIO / peripheral function |
| Pin 134 | PF1 — GPIO / peripheral function |
| Pin 135 | PF2 — GPIO / peripheral function |
| Pin 136 | PF3 — GPIO / peripheral function |
| Pin 137 | PF4 — GPIO / peripheral function |
| Pin 138 | PF5 — GPIO / peripheral function |
| Pin 139 | PF6 — GPIO / peripheral function |
| Pin 140 | PF7 — GPIO / peripheral function |
| Pin 141 | PF8 — GPIO / peripheral function |
| Pin 142 | VDDCORE — Core supply voltage |
| Pin 143 | VSS — Ground |
| Pin 144 | VDDIO — I/O supply voltage |
Typical Applications
ATSAME70Q19B-ANT is suitable for 6 applications: Industrial Motor Control (BLDC/PMSM), Industrial Ethernet Gateway / PLC, IoT Edge Node / Smart Sensor, Automotive Body Electronics (Non-Safety), Audio Processing / Class-D Amplifier, Graphical HMI / Touch Display Controller.
Industrial Motor Control (BLDC/PMSM)
The ATSAME70Q19B-ANT's Cortex-M7 at 300 MHz executes field-oriented control (FOC) loops for BLDC and PMSM motors within the 10-20 kHz PWM cycle typical of industrial drives. With hardware floating-point, sine/cosine and Park transforms run in single-cycle instructions, freeing CPU headroom for sensorless observers and torque-ripple compensation. The 12-bit ADC (up to 24 channels) samples phase currents simultaneously via dual-sample-and-hold, while the high-resolution PWM timers generate complementary 3-phase outputs with programmable dead-time. The 144-LQFP package exposes 114 GPIO for encoder, Hall sensor, and communication interfaces, and the -40C to +105C industrial temperature grade supports drive cabinets.
Recommended
Industrial Ethernet Gateway / PLC
The ATSAME70Q19B-ANT integrates a 10/100 Ethernet MAC and dual CAN-FD controllers, enabling single-MCU industrial gateways that bridge Modbus TCP, EtherNet/IP, or PROFINET with CAN-FD machine networks. The Cortex-M7 with FPU runs lwIP or equivalent TCP/IP stacks with line-rate throughput while leaving CPU cycles for application logic. With 256 KB SRAM it holds full TCP/IP buffers, CAN-FD message pools, and protocol stacks simultaneously. Hardware crypto (AES, TRNG) on adjacent variants secures OPC UA and TLS 1.2 connections. Operating from 1.7 V to 3.6 V and -40C to +105C supports DIN-rail mounted controller enclosures.
Recommended
IoT Edge Node / Smart Sensor
The ATSAME70Q19B-ANT suits IoT edge aggregation nodes that process sensor data locally before cloud transmission. Its Cortex-M7 DSP extensions (SIMD, MAC) accelerate FFT, FIR filtering, and vibration analysis on raw accelerometer/microphone streams, running at 300 MHz with deterministic timing. USB 2.0 High-Speed enables firmware updates and debug, while Ethernet or CAN-FD handles upstream connectivity. The 512 KB Flash accommodates TLS stacks, OTA bootloaders, and application code concurrently. 114 GPIO in 144-LQFP provides rich sensor expansion; industrial -40C to +105C temperature range supports outdoor enclosures.
Recommended
Automotive Body Electronics (Non-Safety)
For non-safety automotive body applications such as body controllers, climate-control HMI, or lighting modules, the ATSAME70Q19B-ANT delivers Cortex-M7 performance with CAN-FD for modern vehicle networks. The -40C to +105C industrial temperature grade survives cabin environments, and the 12-bit ADC handles sensor inputs directly. Hardware PWM and QEI interfaces simplify motor control for HVAC blowers and mirror adjustments. Note this part is not AEC-Q100 qualified; for safety-critical or AEC-Q100 requirements use the SAM V70/V71 family or an external automotive MCU.
Recommended
Audio Processing / Class-D Amplifier
The ATSAME70Q19B-ANT's Cortex-M7 with FPU excels at real-time audio algorithms such as equalization, dynamics processing, and active noise cancellation, where DSP extensions accelerate biquad and FIR filter operations. The integrated I2S interfaces connect to audio ADCs/DACs for digital-input amplifiers or smart speakers. With 256 KB SRAM, it can buffer multi-channel audio frames at 48 kHz/24-bit while running effects processing. The 12-bit DAC supports auxiliary analog outputs (headphone detect, VU meter). Pair with a digital-input Class-D amplifier IC for high-efficiency audio products.
Recommended
Graphical HMI / Touch Display Controller
The ATSAME70Q19B-ANT drives TFT LCD displays up to WXGA resolution using its parallel SMC interface, with HSMCI providing SD card support for asset libraries and logging. The Cortex-M7's 2.14 DMIPS/MHz runs LVGL or emWin graphics stacks with smooth animations and multitouch response. USB 2.0 HS enables fast asset uploads, while CAN-FD links to machine networks for status display. 114 GPIO in 144-LQFP supports capacitive touch sensing and backlight/LED drivers; the 256 KB SRAM accommodates display framebuffers and LVGL objects without external memory in many designs.
Recommended
Recommended Products Summary
Engineering reference data for ATSAME70Q19B-ANT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAME70Q19A-ANT | ATSAME70Q21B-ANT | ATSAME70N21B-CNT | ATSAME70J21A-ANT | ATSAME70N20A-CNT | ATSAME70N19B-AN |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) |
| 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 | 512 KB | 2 MB (+300%) | 2 MB (+300%) | 2 MB (+300%) | 1 MB (+95%) | 512 KB |
| SRAM | 256 KB | 256 KB | 384 KB (+50%) | 384 KB (+50%) | 128 KB (-50%) | 256 KB | 256 KB |
| CAN-FD | Yes (2 channels) | Yes (2 channels) | Yes (2 channels) | Yes (2 channels) | Yes (2 channels) | Yes (2 channels) | No (downgraded) |
| Ethernet MAC | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | No (downgraded) |
| Hardware Crypto | Optional | Optional | Optional | Yes (AES/TRNG/SHA) | Optional | Yes (AES/TRNG/SHA) | Optional |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
Key Differentiators
- Higher internal memory with same package (vs ATSAME70Q19A-ANT)
- Quadruple Flash vs base Q19 (vs ATSAME70Q21B-ANT)
- Integrated hardware crypto accelerators (vs ATSAME70N21B-CNT)
Design Notes
Place a 100 nF decoupling capacitor within 2 mm of every VDDIO/VDDCORE pin pair, plus one bulk 4.7 uF per supply rail. The LQFP-144 package has 9 VDDIO/VDDCORE pairs and 9 corresponding GND pins; missing even one bypass cap can cause brownouts under heavy DMA load. Add a ground pour on the top layer stitched with vias every 5 mm around the chip body for thermal relief and low-impedance return paths.
Do not leave the TST pin floating - tie it to VDDIO through a 10 kohm pull-up to disable boundary scan mode, otherwise the device may enter test mode at power-up. The NRST pin requires an external 10 kohm pull-up plus a 1 nF capacitor for clean reset; many prototype failures stem from missing reset RC components.
Route the external 12 MHz crystal traces (XIN/XOUT) symmetrically with lengths matched within 1 mm and surrounded by a grounded guard ring. Keep crystal traces away from PWM outputs and switching power nodes; aim for 5 mm minimum spacing. For HSE Bypass mode when using an external clock source, AC-couple the input and provide a clean 1.8 V clock to avoid jitter.
Compliance Information
RoHS and lead-free confirmed via JLCPCB and DigiKey listings (2026-09-22). Not AEC-Q100 qualified - for AEC-Q100 needs, use SAM V70/V71 family.
