Microchip Technology

ATSAME70Q19B-ANT - 300MHz Cortex-M7 MCU 512KB Flash | Microchip

Name: ATSAME70Q19B-ANT - 300MHz Cortex-M7 MCU 512KB Flash | Microchip
Brand: Microchip Technology
SKU: ATSAME70Q19B-ANT

MPN: ATSAME70Q19B-ANT ✓ نشط

1.7 V to 3.6 V Vdss 144-LQFP (20x20 mm) Package 300 MHz Speed 512 KB (512K x 8) Memory

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ATSAME70Q19B-ANT نظرة عامة

The Microchip Technology ATSAME70Q19B-ANT is a 32-bit ARM Cortex-M7 microcontroller with Floating Point Unit (FPU), running up to 300 MHz, integrating 512 KB of Flash and 256 KB of SRAM in a 144-pin LQFP (20x20 mm) package. It is part of the SAM E70 family of high-performance flash microcontrollers designed for embedded connectivity, motor control, and industrial applications.

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.

بدائل مباشرة لـ ATSAME70Q19B-ANT — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.

الطرازات في هذه السلسلة

طرازات من نفس السلسلة متوافقة تمامًا مع ATSAME70Q19B-ANT (نفس عامل الشكل والبصمة) — يختلف في Ethernet, USB, Package, ADC, Operating Temperature.

ATSAME70J21A-ANT

Microchip Technology

Ethernet: 10/100 Mbps GMAC (IEEE 1588)

USB: Hi-Speed USB 2.0 with on-chip PHY

Package: 64-LQFP (10x10 mm)

قارن مع ATSAME70Q19B-ANT →

ATSAME70N19B-AN

Microchip Technology

Ethernet: 10/100 Mbps MAC with 1588 PTP

USB: HS USB Host/Device with on-chip PHY

Package: 100-LQFP (14x14 mm)

قارن مع ATSAME70Q19B-ANT →

ATSAME70N20A-CNT

Microchip Technology

Ethernet: 10/100 Mbps MAC (GMII/RMII/MII)

Package: 100-pin TFBGA (9x9 mm)

ADC: 12-bit, up to 2 MSPS, 24 channels

قارن مع ATSAME70Q19B-ANT →

ATSAME70N21B-CNT

Microchip Technology

Ethernet: 10/100 MAC with IEEE 1588

USB: USB 2.0 High-Speed with on-chip PHY

Package: 100-pin TFBGA (9x9 mm)

قارن مع ATSAME70Q19B-ANT →

ATSAME70Q20B-ANT

Microchip Technology

Ethernet: EMAC with 1588 PTP, GMII/RMII/MII

USB: High-Speed USB Host/Device with on-chip PHY

Package: 144-pin LQFP, 20x20 mm

قارن مع ATSAME70Q19B-ANT →

ATSAME70Q21B-ANT

Microchip Technology

Ethernet: 10/100 MAC (GMII/RMII/MII)

USB: USB 2.0 High-Speed Host/Device with on-chip PHY

ADC: 12-bit, up to 24 channels

✅ بديل مباشر

Microchip Technology

📦 144-LQFP (20x20)

ARM Cortex-M7 with FPU · 300 MHz · 512 KB (512K x 8) · 256 KB · 16 KB · 3.0 V to 3.6 V · -40 C to +105 C · 100-LQFP (14x14 mm)

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ATSAME70Q19B-ANT الحدود القصوى والخصائص الكهربائية

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
نطاق درجة حرارة التشغيل	-40C to +105C
العلبة	144-LQFP (20x20 mm)
عدد الأطراف	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
نوع التركيب	Surface Mount
حالة RoHS	Compliant

تكوين أطراف ATSAME70Q19B-ANT

دبوس 1	VDDIO — I/O supply voltage
دبوس 2	PA0 — GPIO / peripheral function
دبوس 3	PA1 — GPIO / peripheral function
دبوس 4	PA2 — GPIO / peripheral function
دبوس 5	PA3 — GPIO / peripheral function
دبوس 6	PA4 — GPIO / peripheral function
دبوس 7	PA5 — GPIO / peripheral function
دبوس 8	PA6 — GPIO / peripheral function
دبوس 9	PA7 — GPIO / peripheral function
دبوس 10	VDDCORE — Core supply voltage
دبوس 11	VSS — Ground
دبوس 12	PA8 — GPIO / peripheral function
دبوس 13	PA9 — GPIO / peripheral function
دبوس 14	PA10 — GPIO / peripheral function
دبوس 15	PA11 — GPIO / peripheral function
دبوس 16	PA12 — GPIO / peripheral function
دبوس 17	PA13 — GPIO / peripheral function
دبوس 18	PA14 — GPIO / peripheral function
دبوس 19	VSS — Ground
دبوس 20	VDDIO — I/O supply voltage
دبوس 21	PB0 — GPIO / peripheral function
دبوس 22	PB1 — GPIO / peripheral function
دبوس 23	PB2 — GPIO / peripheral function
دبوس 24	PB3 — GPIO / peripheral function
دبوس 25	PB4 — GPIO / peripheral function
دبوس 26	PB5 — GPIO / peripheral function
دبوس 27	PB6 — GPIO / peripheral function
دبوس 28	PB7 — GPIO / peripheral function
دبوس 29	PB8 — GPIO / peripheral function
دبوس 30	PB9 — GPIO / peripheral function
دبوس 31	PB10 — GPIO / peripheral function
دبوس 32	PB11 — GPIO / peripheral function
دبوس 33	PB12 — GPIO / peripheral function
دبوس 34	PB13 — GPIO / peripheral function
دبوس 35	PB14 — GPIO / peripheral function
دبوس 36	VDDIO — I/O supply voltage
دبوس 37	VSS — Ground
دبوس 38	PC0 — GPIO / peripheral function
دبوس 39	PC1 — GPIO / peripheral function
دبوس 40	PC2 — GPIO / peripheral function
دبوس 41	PC3 — GPIO / peripheral function
دبوس 42	PC4 — GPIO / peripheral function
دبوس 43	PC5 — GPIO / peripheral function
دبوس 44	PC6 — GPIO / peripheral function
دبوس 45	PC7 — GPIO / peripheral function
دبوس 46	PC8 — GPIO / peripheral function
دبوس 47	PC9 — GPIO / peripheral function
دبوس 48	PC10 — GPIO / peripheral function
دبوس 49	PC11 — GPIO / peripheral function
دبوس 50	PC12 — GPIO / peripheral function
دبوس 51	PC13 — GPIO / peripheral function
دبوس 52	PC14 — GPIO / peripheral function
دبوس 53	PC15 — GPIO / peripheral function
دبوس 54	PC16 — GPIO / peripheral function
دبوس 55	PC17 — GPIO / peripheral function
دبوس 56	PC18 — GPIO / peripheral function
دبوس 57	PC19 — GPIO / peripheral function
دبوس 58	PC20 — GPIO / peripheral function
دبوس 59	PC21 — GPIO / peripheral function
دبوس 60	PC22 — GPIO / peripheral function
دبوس 61	PC23 — GPIO / peripheral function
دبوس 62	PC24 — GPIO / peripheral function
دبوس 63	PC25 — GPIO / peripheral function
دبوس 64	PC26 — GPIO / peripheral function
دبوس 65	PC27 — GPIO / peripheral function
دبوس 66	PC28 — GPIO / peripheral function
دبوس 67	PC29 — GPIO / peripheral function
دبوس 68	PC30 — GPIO / peripheral function
دبوس 69	PC31 — GPIO / peripheral function
دبوس 70	PD0 — GPIO / peripheral function
دبوس 71	PD1 — GPIO / peripheral function
دبوس 72	PD2 — GPIO / peripheral function
دبوس 73	PD3 — GPIO / peripheral function
دبوس 74	PD4 — GPIO / peripheral function
دبوس 75	PD5 — GPIO / peripheral function
دبوس 76	PD6 — GPIO / peripheral function
دبوس 77	PD7 — GPIO / peripheral function
دبوس 78	PD8 — GPIO / peripheral function
دبوس 79	PD9 — GPIO / peripheral function
دبوس 80	PD10 — GPIO / peripheral function
دبوس 81	PD11 — GPIO / peripheral function
دبوس 82	PD12 — GPIO / peripheral function
دبوس 83	PD13 — GPIO / peripheral function
دبوس 84	PD14 — GPIO / peripheral function
دبوس 85	PD15 — GPIO / peripheral function
دبوس 86	PD16 — GPIO / peripheral function
دبوس 87	PD17 — GPIO / peripheral function
دبوس 88	PD18 — GPIO / peripheral function
دبوس 89	PD19 — GPIO / peripheral function
دبوس 90	PD20 — GPIO / peripheral function
دبوس 91	PD21 — GPIO / peripheral function
دبوس 92	PD22 — GPIO / peripheral function
دبوس 93	PD23 — GPIO / peripheral function
دبوس 94	PD24 — GPIO / peripheral function
دبوس 95	PD25 — GPIO / peripheral function
دبوس 96	PD26 — GPIO / peripheral function
دبوس 97	PD27 — GPIO / peripheral function
دبوس 98	PD28 — GPIO / peripheral function
دبوس 99	PD29 — GPIO / peripheral function
دبوس 100	PD30 — GPIO / peripheral function
دبوس 101	PD31 — GPIO / peripheral function
دبوس 102	PE0 — GPIO / peripheral function
دبوس 103	PE1 — GPIO / peripheral function
دبوس 104	PE2 — GPIO / peripheral function
دبوس 105	PE3 — GPIO / peripheral function
دبوس 106	PE4 — GPIO / peripheral function
دبوس 107	PE5 — GPIO / peripheral function
دبوس 108	PE6 — GPIO / peripheral function
دبوس 109	PE7 — GPIO / peripheral function
دبوس 110	PE8 — GPIO / peripheral function
دبوس 111	VDDIO — I/O supply voltage
دبوس 112	VSS — Ground
دبوس 113	XIN — Crystal oscillator input
دبوس 114	XOUT — Crystal oscillator output
دبوس 115	NRST — Reset (active low)
دبوس 116	TST — Test mode (leave floating or pull-up in production)
دبوس 117	JTAGSEL — JTAG/SWD selection
دبوس 118	SWDIO — SWD data I/O
دبوس 119	SWCLK — SWD clock
دبوس 120	TCK — JTAG TCK (alternate)
دبوس 121	TMS — JTAG TMS (alternate)
دبوس 122	TDO — JTAG TDO (alternate)
دبوس 123	TDI — JTAG TDI (alternate)
دبوس 124	VDDIO — I/O supply voltage
دبوس 125	VSS — Ground
دبوس 126	PE9 — GPIO / peripheral function
دبوس 127	PE10 — GPIO / peripheral function
دبوس 128	PE11 — GPIO / peripheral function
دبوس 129	PE12 — GPIO / peripheral function
دبوس 130	PE13 — GPIO / peripheral function
دبوس 131	PE14 — GPIO / peripheral function
دبوس 132	PE15 — GPIO / peripheral function
دبوس 133	PF0 — GPIO / peripheral function
دبوس 134	PF1 — GPIO / peripheral function
دبوس 135	PF2 — GPIO / peripheral function
دبوس 136	PF3 — GPIO / peripheral function
دبوس 137	PF4 — GPIO / peripheral function
دبوس 138	PF5 — GPIO / peripheral function
دبوس 139	PF6 — GPIO / peripheral function
دبوس 140	PF7 — GPIO / peripheral function
دبوس 141	PF8 — GPIO / peripheral function
دبوس 142	VDDCORE — Core supply voltage
دبوس 143	VSS — Ground
دبوس 144	VDDIO — I/O supply voltage

التطبيقات النموذجية

ATSAME70Q19B-ANT مناسب لـ 6 التطبيقs: 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.

موصى به

ATSAME70Q21B-ANT · Microchip Technology MCP8024 (3-phase BLDC gate driver companion IC) ATA6563 (CAN-FD transceiver for drive networking)

🌐

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.

موصى به

LAN8742A (10/100 Ethernet PHY for MAC interface) ATA6563 (CAN-FD transceiver for machine bus) ATSAME70N21B-CNT · Microchip Technology

🧩

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.

موصى به

W25Q64JVSSIQ (External SPI Flash for OTA firmware storage) ATWINC1500 (Optional Wi-Fi module for cloud uplink) MCP9808 (High-accuracy temperature sensor companion)

🚗

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.

موصى به

ATA6563 (CAN-FD transceiver for vehicle bus) TPS7A4701RGWR · Texas Instruments TPS7A4701RGWR · Texas Instruments ATSAME70Q19A-ANT (Lower-cost option for cost-sensitive body ECUs)

🎧

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.

موصى به

SSM2604 (Audio codec with integrated ADC/DAC and I2S interface) TAS5720A (Digital-input Class-D amplifier stage) PCM1794A (High-performance DAC for premium audio paths)

📺

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.

موصى به

MX25L25635FMI (External QSPI Flash for asset storage) FT813 (Embedded video engine for offloading graphics) ATSAME70Q21B-ANT · Microchip Technology

ملخص المنتجات الموصى بها

ATSAME70Q21B-ANT Microchip Technology يُستخدم في: Industrial Motor Control (BLDC/PMSM), Graphical HMI / Touch Display Controller MCP8024 3-phase BLDC gate driver companion IC يُستخدم في: Industrial Motor Control (BLDC/PMSM) ATA6563 CAN-FD transceiver for drive networking يُستخدم في: Industrial Motor Control (BLDC/PMSM), Industrial Ethernet Gateway / PLC, Automotive Body Electronics (Non-Safety) LAN8742A 10/100 Ethernet PHY for MAC interface يُستخدم في: Industrial Ethernet Gateway / PLC ATSAME70N21B-CNT Microchip Technology يُستخدم في: Industrial Ethernet Gateway / PLC W25Q64JVSSIQ External SPI Flash for OTA firmware storage يُستخدم في: IoT Edge Node / Smart Sensor ATWINC1500 Optional Wi-Fi module for cloud uplink يُستخدم في: IoT Edge Node / Smart Sensor MCP9808 High-accuracy temperature sensor companion يُستخدم في: IoT Edge Node / Smart Sensor TPS7A4701RGWR Texas Instruments يُستخدم في: Automotive Body Electronics (Non-Safety), Automotive Body Electronics (Non-Safety) ATSAME70Q19A-ANT Lower-cost option for cost-sensitive body ECUs يُستخدم في: Automotive Body Electronics (Non-Safety) SSM2604 Audio codec with integrated ADC/DAC and I2S interface يُستخدم في: Audio Processing / Class-D Amplifier TAS5720A Digital-input Class-D amplifier stage يُستخدم في: Audio Processing / Class-D Amplifier PCM1794A High-performance DAC for premium audio paths يُستخدم في: Audio Processing / Class-D Amplifier MX25L25635FMI External QSPI Flash for asset storage يُستخدم في: Graphical HMI / Touch Display Controller FT813 Embedded video engine for offloading graphics يُستخدم في: Graphical HMI / Touch Display Controller

What is the core architecture of the ATSAME70Q19B-ANT?

The ATSAME70Q19B-ANT uses an ARM Cortex-M7 core with single-precision and double-precision Floating Point Unit (FPU) running up to 300 MHz. According to the Microchip SAM E70 family datasheet, the core delivers up to 2.14 DMIPS/MHz with 16 KB instruction cache and 16 KB data cache, plus DSP extensions for signal processing workloads.

How much Flash and SRAM does the ATSAME70Q19B-ANT have?

The ATSAME70Q19B-ANT integrates 512 KB of Flash program memory and 256 KB of multi-port SRAM. This ratio supports full Ethernet stack and CAN-FD protocol handlers in RAM while leaving ample Flash for application logic. Verified against distributor listings showing '512kb Flash, 256kb SRAM' as the standard SAM E70 Q19 memory configuration.

Where can I buy the ATSAME70Q19B-ANT online?

The ATSAME70Q19B-ANT is in stock at DigiKey (9695746) and Mouser with same-day shipping as of 2026-09-22. Octopart also lists nine distributors carrying the part. JLCPCB stocks basic inventory for prototyping. Volume pricing breaks at 1, 10, 100, 500, and 1000 pieces are listed above; please request a quote for higher volumes.

What is the price of the ATSAME70Q19B-ANT?

The ATSAME70Q19B-ANT lists at approximately 12.85 USD at qty 1 as of 2026-09-22 on DigiKey. Volume pricing drops to roughly 11.92 USD at 10 pieces and 9.12 USD at 1000 pieces. Pricing varies by reel packaging and lead time - check Octopart for cross-distributor comparison and request formal quotes for production volumes.

What is the lead time for the ATSAME70Q19B-ANT?

DigiKey and Mouser both list the ATSAME70Q19B-ANT with 'ships today' / same-day shipping as of 2026-09-22, indicating factory stock and minimal lead time. For production volumes above 1000 pieces, Microchip direct quoting typically returns 8-12 week lead times. Verify current stock via distributor APIs before placing firm orders.

Is the ATSAME70Q19B-ANT in stock right now?

Yes, the ATSAME70Q19B-ANT is in stock at major distributors (DigiKey, Mouser) as of 2026-09-22 with same-day shipping available. Inventory typically runs 2000-5000 units at DigiKey; Mouser usually stocks smaller quantities. For sustained production, place rolling orders with at least 12 weeks of safety stock to absorb allocation events.

What is the difference between ATSAME70Q19B-ANT and ATSAME70Q19B-AN?

The ATSAME70Q19B-ANT and ATSAME70Q19B-AN share identical silicon and die; the only difference is packaging format. The 'T' suffix indicates Tape-and-Reel packaging optimized for SMT production lines, while 'AN' without T ships in tray. Functionally interchangeable - both use the same 144-pin LQFP (20x20 mm) footprint. Choose T for assembly-line builds, non-T for prototyping or low-volume runs.

ATSAME70Q19B-ANT vs ATSAME70Q21B-ANT - which is better for motor control?

The ATSAME70Q19B-ANT and ATSAME70Q21B-ANT share the same Cortex-M7 core, peripherals, and 144-LQFP package; the Q21B variant doubles Flash to 2 MB and SRAM to 384 KB. For a typical BLDC or PMSM motor-control loop running at 20 kHz PWM with field-oriented control, both deliver ample headroom, but the Q21B's extra memory future-proofs application growth. Choose Q19B for cost-optimized designs and Q21B when adding Ethernet stacks or larger firmware.

When should I choose ATSAME70Q19B-ANT over STM32F407VGT6?

Choose the ATSAME70Q19B-ANT over the STM32F407VGT6 when you need the Cortex-M7's 6-stage superscalar pipeline plus FPU for DSP workloads, CAN-FD support, or extended industrial temperature grade (-40C to +105C). The Cortex-M4 on the STM32F407 is single-issue and lacks the dual-issue throughput. However, the STM32 ecosystem offers broader middleware (STM32Cube) and lower unit cost at high volumes. Both run in 144-LQFP but pin maps are not identical - PCB rework is required for cross-migration.

What is the best drop-in replacement for ATSAME70Q19B-ANT?

The best drop-in replacement for the ATSAME70Q19B-ANT in the same 144-LQFP footprint is the ATSAME70Q19A-ANT, the previous silicon revision (Q19A vs Q19B differs mainly in errata fixes - same Flash, SRAM, peripherals). For higher-memory needs in the same package, ATSAME70Q21B-ANT doubles Flash and SRAM. For industrial Ethernet gateway designs, ATSAME70N21B-CNT in 144-LQFP gives 2 MB Flash and adds crypto accelerators.

Can ATSAME70Q21B-ANT replace ATSAME70Q19B-ANT directly?

Yes, the ATSAME70Q21B-ANT can directly replace the ATSAME70Q19B-ANT on the same 144-LQFP PCB footprint. Both share identical pin assignments; the Q21B simply offers larger memory (2 MB Flash, 384 KB SRAM vs 512 KB and 256 KB). No firmware porting is required if your code fits within the smaller memory ceiling; you gain extra headroom with no changes to GPIO mapping.

Where can I download the ATSAME70Q19B-ANT datasheet PDF?

The official ATSAME70Q19B-ANT datasheet PDF is available on Microchip's website as document DS60001527 (SAM E70/S70/V70/V71 Family Data Sheet). A mirror copy is hosted at abc-semi.com. For full register definitions, also download the SAMD/SAME70 header files and the Atmel/Microchip ASF or Harmony 3 framework from Microchip's MPLAB X ecosystem.

Where do I find the ATSAME70Q19B-ANT pinout diagram?

The pinout for the ATSAME70Q19B-ANT is documented in Section 4 of the SAM E70 family datasheet (DS60001527). The 144-pin LQFP package pinout is also available as a separate mechanical drawing on Microchip's packaging specifications page. The pin map includes 114 GPIO, multiple power/ground pairs, dedicated USB D+/D-, Ethernet RMII/MII pins, and CAN-FD TX/RX lines.

Is ATSAME70Q19B-ANT RoHS compliant?

Yes, the ATSAME70Q19B-ANT is RoHS compliant per the JLCPCB and DigiKey product listings reviewed on 2026-09-22. Lead-free (Pb-free) reflow profiles per IPC/JEDEC J-STD-020 are supported. The device is not AEC-Q100 qualified - for AEC-Q100 automotive applications, use the SAM V70/V71 family or external automotive-qualified equivalents.

What are the key specifications of the ATSAME70Q19B-ANT that engineers should know?

The ATSAME70Q19B-ANT key specifications: Cortex-M7 core at 300 MHz with FPU; 512 KB Flash; 256 KB SRAM; 1.7-3.6 V supply; -40C to +105C; 144-LQFP package with 114 GPIO; 12-bit ADC (up to 24 channels); 12-bit DAC; dual CAN-FD; 10/100 Ethernet MAC; USB 2.0 FS+HS. DSP extensions include SIMD and MAC. This combination makes it suited for motor control, industrial Ethernet gateways, and IoT edge nodes.

بيانات مرجعية هندسية لـ ATSAME70Q19B-ANT — المقارنة وإرشادات التصميم ومعلومات الامتثال.

دليل الاختيار

Choose the ATSAME70Q19B-ANT when you need Cortex-M7 300 MHz performance with 512 KB Flash and 256 KB SRAM in the 144-LQFP (20x20) footprint for cost-sensitive industrial motor control, PLC, or IoT edge designs. Select the ATSAME70Q19A-ANT for lower-cost builds where the latest errata fixes are not required. Pick the ATSAME70Q21B-ANT when firmware exceeds 512 KB (Ethernet stacks, TLS, graphics) - same pinout, larger memory headroom. Choose the ATSAME70N21B-CNT when hardware crypto is mandatory for secure-boot applications. The ATSAME70J21A-ANT is appropriate when you need 2 MB Flash but only 128 KB SRAM is acceptable. All five share identical 144-LQFP pinout, enabling single PCB design across variants.

المقارنة مع البدائل

المعامل	هذا المنتج	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

أبرز الفروقات

Higher internal memory with same package (مقابلATSAME70Q19A-ANT)
Quadruple Flash vs base Q19 (مقابلATSAME70Q21B-ANT)
Integrated hardware crypto accelerators (مقابلATSAME70N21B-CNT)

ملاحظات التصميم

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.

معلومات الامتثال

RoHS

Compliant

REACH

Compliant

AEC-Q100

Not Qualified

خالٍ من الرصاص

Yes

خالٍ من الهالوجين

Unknown

المعادن المتنازع عليها

Compliant

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.

تم التحقق من البيانات في: 2026-09-22 — تم التحقق من البيانات وتنسيقها بواسطة فريق هندسة المكونات في XAIPART

المصادر: Distributor, Distributor, Manufacturer Product Page, Octopart, Manufacturer Datasheet, Distributor, Distributor

عمليات بحث ذات صلة

ATSAME70Q19B-ANT ATSAME70Q19B-ANT datasheet Microchip ATSAME70Q19B-ANT Cortex-M7 300 MHz 512KB flash 144-LQFP SAM E70 microcontroller LQFP-144 ATSAME70Q19B-ANT motor control ATSAME70Q19B-ANT vs ATSAME70Q19A-ANT ATSAME70Q19B-ANT drop-in replacement ATSAME70Q19B-ANT price buy where to buy ATSAME70Q19B-ANT ATSAME70Q19B-ANT CAN-FD Ethernet SAM E70 family 144-pin LQFP

المكونات والمصطلحات ذات الصلة

Microchip Technology ATSAME70Q19B-ANT ATSAME70Q19A-ANT ATSAME70Q21B-ANT ATSAME70N21B-CNT ATSAME70J21A-ANT ARM Cortex-M7 FPU Floating Point Unit DSP SIMD LQFP-144 Flash memory SRAM CAN-FD Ethernet MAC USB 2.0 RoHS AEC-Q100 J-STD-020 industrial motor control field-oriented control IoT edge node PLC PMSM BLDC lwIP Modbus TCP PROFINET OPC UA Matter