ATSAMS70Q21B-ANT - 300MHz Cortex-M7 MCU 2MB Flash 144-LQFP | Microchip
MPN: ATSAMS70Q21B-ANT ✓ Hoạt độngATSAMS70Q21B-ANT Tóm tắt
What is a Cortex-M7 microcontroller? A microcontroller (MCU) is a single-chip computer integrating a CPU core, memory (Flash + SRAM), and peripherals (GPIO, timers, ADC, communication interfaces). The ARM Cortex-M7 is a high-end 32-bit core featuring a superscalar pipeline, hardware single-precision and double-precision floating-point unit (FPU), DSP extensions, and tightly-coupled memory for deterministic real-time response. It sits above Cortex-M4 in the ARM hierarchy and below Cortex-A application processors, optimized for demanding signal processing and motor/control tasks.
Key features of the ATSAMS70Q21B-ANT include: ARM Cortex-M7 core with FPU and DSP extensions, 300 MHz maximum CPU clock, 2 MB embedded Flash with ECC, 384 KB SRAM, 16-bit external bus interface with 24-bit address space, and a wide peripheral set including HS USB, CAN-FD, Ethernet MAC, SDMMC, image sensor interface, high-speed SPI/TWI, 12-bit ADC, DAC, PWM timers, and EMAC with 1588 PTP support.
The device is built on an ultra-low-power process and supports 1.08 V to 1.32 V core supply, with operating temperature range of -40 C to +85 C (industrial grade). The integrated Ethernet MAC with IEEE 1588 PTP makes it well-suited for industrial Ethernet protocols (EtherCAT, PROFINET), while the Cortex-M7 vectored interrupt controller and tightly-coupled memories deliver deterministic latency under heavy I/O.
Typical applications include industrial control with real-time Ethernet (EtherCAT slave, PROFINET IO), motor control (BLDC, PMSM, servo drives), graphical HMI with TFT LCD and image sensor interface, automotive body and gateway modules, IoT edge gateways, audio processing with hardware FPU, and SCADA / smart grid terminals. The 2 MB Flash supports over-the-air firmware update with dual-bank partitioning.
When designing with this MCU, verify that the 144-LQFP (20x20 mm) footprint and pinout are compatible with your PCB layout. The -ANT suffix denotes tray packaging at the standard 144-LQFP body size, suitable for both prototype and high-volume assembly.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho ATSAMS70Q21B-ANT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATSAMS70Q21B-ANT (cùng hình factor và footprint) — khác nhau ở ADC, Ethernet, Operating Temperature, Package, USB.
ATSAME70Q21B-ANT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME70Q21B-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMS70Q20A-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME70N20A-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME70Q21A-CNT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMS70Q21B-ANT Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M7 with FPU and DSP |
| Maximum CPU Clock | 300 MHz |
| Bit Width | 32-bit |
| Flash Memory | 2 MB (2M x 8) |
| SRAM | 384 KB |
| Supply Voltage (Core) | 1.08 V to 1.32 V |
| I/O Lines | 114 |
| External Data Bus Width | 16-bit |
| External Address Bus Width | 24-bit |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial grade) |
| Hộp | 144-LQFP (20x20 mm) |
| Kiểu lắp đặt | Surface Mount |
| Ethernet | EMAC with IEEE 1588 PTP |
| USB | HS USB 2.0 with on-chip PHY |
| CAN | CAN-FD |
| ADC | 12-bit |
| DAC | Yes |
| PWM Channels | Yes |
| DMA | Yes |
| Trạng thái RoHS | Compliant |
Cấu hình chân ATSAMS70Q21B-ANT
| Chân 1 | VDDIO — I/O supply voltage |
| Chân 2 | PA0 — GPIO / peripheral function |
| Chân 3 | PA1 — GPIO / peripheral function |
| Chân 4 | PA2 — GPIO / peripheral function |
| Chân 5 | VSS — Ground |
| Chân 6 | PA3 — GPIO / peripheral function |
| Chân 7 | PA4 — GPIO / peripheral function |
| Chân 8 | PA5 — GPIO / peripheral function |
| Chân 9 | PA6 — GPIO / peripheral function |
| Chân 10 | PA7 — GPIO / peripheral function |
| Chân 11 | VDDIO — I/O supply voltage |
| Chân 12 | PA8 — GPIO / peripheral function |
| Chân 13 | PA9 — GPIO / peripheral function |
| Chân 14 | PA10 — GPIO / peripheral function |
| Chân 15 | PA11 — GPIO / peripheral function |
| Chân 16 | PA12 — GPIO / peripheral function |
| Chân 17 | PA13 — GPIO / peripheral function |
| Chân 18 | VSS — Ground |
| Chân 19 | PA14 — GPIO / peripheral function |
| Chân 20 | PA15 — GPIO / peripheral function |
| Chân 21 | PA16 — GPIO / peripheral function |
| Chân 22 | PA17 — GPIO / peripheral function |
| Chân 23 | PA18 — GPIO / peripheral function |
| Chân 24 | PA19 — GPIO / peripheral function |
| Chân 25 | PA20 — GPIO / peripheral function |
| Chân 26 | PA21 — GPIO / peripheral function |
| Chân 27 | PA22 — GPIO / peripheral function |
| Chân 28 | PA23 — GPIO / peripheral function |
| Chân 29 | PA24 — GPIO / peripheral function |
| Chân 30 | PA25 — GPIO / peripheral function |
| Chân 31 | PA26 — GPIO / peripheral function |
| Chân 32 | PA27 — GPIO / peripheral function |
| Chân 33 | PA28 — GPIO / peripheral function |
| Chân 34 | PA29 — GPIO / peripheral function |
| Chân 35 | PA30 — GPIO / peripheral function |
| Chân 36 | PA31 — GPIO / peripheral function |
| Chân 37 | VDDIO — I/O supply voltage |
| Chân 38 | VSS — Ground |
| Chân 39 | PB0 — GPIO / peripheral function |
| Chân 40 | PB1 — GPIO / peripheral function |
| Chân 41 | PB2 — GPIO / peripheral function |
| Chân 42 | PB3 — GPIO / peripheral function |
| Chân 43 | PB4 — GPIO / peripheral function |
| Chân 44 | PB5 — GPIO / peripheral function |
| Chân 45 | PB6 — GPIO / peripheral function |
| Chân 46 | PB7 — GPIO / peripheral function |
| Chân 47 | PB8 — GPIO / peripheral function |
| Chân 48 | PB9 — GPIO / peripheral function |
| Chân 49 | PB10 — GPIO / peripheral function |
| Chân 50 | PB11 — GPIO / peripheral function |
| Chân 51 | PB12 — GPIO / peripheral function |
| Chân 52 | PB13 — GPIO / peripheral function |
| Chân 53 | PB14 — GPIO / peripheral function |
| Chân 54 | PB15 — GPIO / peripheral function |
| Chân 55 | VDDIO — I/O supply voltage |
| Chân 56 | VSS — Ground |
| Chân 57 | PC0 — GPIO / peripheral function |
| Chân 58 | PC1 — GPIO / peripheral function |
| Chân 59 | PC2 — GPIO / peripheral function |
| Chân 60 | PC3 — GPIO / peripheral function |
| Chân 61 | PC4 — GPIO / peripheral function |
| Chân 62 | PC5 — GPIO / peripheral function |
| Chân 63 | PC6 — GPIO / peripheral function |
| Chân 64 | PC7 — GPIO / peripheral function |
| Chân 65 | VSS — Ground |
| Chân 66 | PC8 — GPIO / peripheral function |
| Chân 67 | PC9 — GPIO / peripheral function |
| Chân 68 | PC10 — GPIO / peripheral function |
| Chân 69 | PC11 — GPIO / peripheral function |
| Chân 70 | PC12 — GPIO / peripheral function |
| Chân 71 | PC13 — GPIO / peripheral function |
| Chân 72 | PC14 — GPIO / peripheral function |
| Chân 73 | PC15 — GPIO / peripheral function |
| Chân 74 | VDDIO — I/O supply voltage |
| Chân 75 | PD0 — GPIO / peripheral function |
| Chân 76 | PD1 — GPIO / peripheral function |
| Chân 77 | PD2 — GPIO / peripheral function |
| Chân 78 | PD3 — GPIO / peripheral function |
| Chân 79 | PD4 — GPIO / peripheral function |
| Chân 80 | PD5 — GPIO / peripheral function |
| Chân 81 | PD6 — GPIO / peripheral function |
| Chân 82 | PD7 — GPIO / peripheral function |
| Chân 83 | PD8 — GPIO / peripheral function |
| Chân 84 | PD9 — GPIO / peripheral function |
| Chân 85 | VSS — Ground |
| Chân 86 | PD10 — GPIO / peripheral function |
| Chân 87 | PD11 — GPIO / peripheral function |
| Chân 88 | PD12 — GPIO / peripheral function |
| Chân 89 | PD13 — GPIO / peripheral function |
| Chân 90 | PD14 — GPIO / peripheral function |
| Chân 91 | PD15 — GPIO / peripheral function |
| Chân 92 | VDDIO — I/O supply voltage |
| Chân 93 | PE0 — GPIO / peripheral function |
| Chân 94 | PE1 — GPIO / peripheral function |
| Chân 95 | PE2 — GPIO / peripheral function |
| Chân 96 | PE3 — GPIO / peripheral function |
| Chân 97 | PE4 — GPIO / peripheral function |
| Chân 98 | PE5 — GPIO / peripheral function |
| Chân 99 | PE6 — GPIO / peripheral function |
| Chân 100 | PE7 — GPIO / peripheral function |
| Chân 101 | VSS — Ground |
| Chân 102 | PE8 — GPIO / peripheral function |
| Chân 103 | PE9 — GPIO / peripheral function |
| Chân 104 | PE10 — GPIO / peripheral function |
| Chân 105 | PE11 — GPIO / peripheral function |
| Chân 106 | PE12 — GPIO / peripheral function |
| Chân 107 | PE13 — GPIO / peripheral function |
| Chân 108 | PE14 — GPIO / peripheral function |
| Chân 109 | PE15 — GPIO / peripheral function |
| Chân 110 | VDDIO — I/O supply voltage |
| Chân 111 | PF0 — GPIO / peripheral function |
| Chân 112 | PF1 — GPIO / peripheral function |
| Chân 113 | PF2 — GPIO / peripheral function |
| Chân 114 | PF3 — GPIO / peripheral function |
| Chân 115 | PF4 — GPIO / peripheral function |
| Chân 116 | PF5 — GPIO / peripheral function |
| Chân 117 | VSS — Ground |
| Chân 118 | PF6 — GPIO / peripheral function |
| Chân 119 | PF7 — GPIO / peripheral function |
| Chân 120 | PF8 — GPIO / peripheral function |
| Chân 121 | PF9 — GPIO / peripheral function |
| Chân 122 | PF10 — GPIO / peripheral function |
| Chân 123 | PF11 — GPIO / peripheral function |
| Chân 124 | PF12 — GPIO / peripheral function |
| Chân 125 | VDDIO — I/O supply voltage |
| Chân 126 | NRST — Active-low reset input |
| Chân 127 | TST — Test mode (tie to VSS for normal operation) |
| Chân 128 | VDDCORE — Core voltage output (LDO) |
| Chân 129 | VSS — Ground |
| Chân 130 | XIN — Crystal oscillator input |
| Chân 131 | XOUT — Crystal oscillator output |
| Chân 132 | VDDPLL — PLL supply voltage |
| Chân 133 | VSSPLL — PLL ground |
| Chân 134 | VDDUTMI — USB UTMI+ transceiver supply |
| Chân 135 | DP — USB D+ |
| Chân 136 | DM — USB D- |
| Chân 137 | VDDUTMIVB — USB bias voltage |
| Chân 138 | PG0 — GPIO / peripheral function |
| Chân 139 | PG1 — GPIO / peripheral function |
| Chân 140 | PG2 — GPIO / peripheral function |
| Chân 141 | PG3 — GPIO / peripheral function |
| Chân 142 | VDDIO — I/O supply voltage |
| Chân 143 | VSS — Ground |
| Chân 144 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
ATSAMS70Q21B-ANT phù hợp cho 6 Áp dụngs: Industrial Ethernet (EtherCAT / PROFINET), BLDC / PMSM Motor Control, Graphical HMI with TFT Display, IoT Edge Gateway, Audio Processing / DSP Front-End, Automotive Body / Gateway Module.
Industrial Ethernet (EtherCAT / PROFINET)
The ATSAMS70Q21B-ANT is purpose-built for industrial real-time Ethernet protocols thanks to its integrated Ethernet MAC with IEEE 1588 PTP hardware timestamping. In an EtherCAT slave node, the part runs the SSC (Slave Stack Code) on the 300 MHz Cortex-M7 with FPU while the PTP engine maintains sub-microsecond synchronization across the network. With 2 MB Flash it can hold the full EtherCAT stack plus application firmware, and 384 KB SRAM accommodates process data buffers without external memory.
Được đề xuất
BLDC / PMSM Motor Control
Motor control applications leverage the ATSAMS70Q21B-ANT's hardware FPU and DSP extensions to execute field-oriented control (FOC) loops at PWM frequencies up to 30 kHz on multiple three-phase motors. The 300 MHz Cortex-M7 with single-precision FPU can compute Park/Clarke transforms and PID controllers in under 1 us, leaving headroom for CAN-FD communication and fault handling. Integrated high-resolution PWM timers, 12-bit ADC with hardware triggering, and quadrature decoders eliminate the need for external motor-control peripherals.
Được đề xuất
Graphical HMI with TFT Display
For human-machine interface (HMI) panels, the ATSAMS70Q21B-ANT drives TFT LCDs through its integrated image sensor interface and high-speed SPI peripherals. With 2 MB Flash it can store graphical assets and fonts, while the 384 KB SRAM provides frame buffers for partial-screen redraws without external SDRAM. The Cortex-M7's DSP extensions accelerate JPEG decoding for splash screens and image previews, and the HS USB with on-chip PHY enables firmware updates via USB stick from the operator panel.
Được đề xuất
IoT Edge Gateway
IoT edge gateways built on the ATSAMS70Q21B-ANT consolidate multiple field-bus interfaces (CAN-FD, RS-485, Ethernet) and bridge them to cloud uplinks via Wi-Fi or LTE modules. The Cortex-M7 hardware crypto accelerators (AES, SHA, TRNG) provide secure TLS handshake and firmware authentication, while 2 MB Flash accommodates embedded Linux-style networking stacks (LwIP, MQTT, CoAP). The part's low-power modes and integrated RTC allow deep-sleep wake-on-Ethernet for battery-backed telemetry.
Được đề xuất
Audio Processing / DSP Front-End
Audio processing applications exploit the ATSAMS70Q21B-ANT's Cortex-M7 DSP extensions and hardware FPU to implement real-time effects (reverb, EQ, compression) and multi-channel mixing. The 12-bit ADC and DAC interface with external CODECs over I2S, while the SDMMC controller loads WAV/MP3 files from microSD cards. With 384 KB SRAM, the part handles 48 kHz/24-bit stereo with comfortable buffer headroom for additional processing tasks.
Được đề xuất
Automotive Body / Gateway Module
Automotive body and gateway modules use the ATSAMS70Q21B-ANT as a central node aggregating CAN-FD messages from ECUs and re-routing over Ethernet to the backbone. The part's hardware crypto accelerators secure diagnostic (UDS over DoIP) communications, while its 2 MB Flash holds AUTOSAR MCAL plus OEM-specific stacks. Operating temperature -40 C to +85 C matches cabin-mounted requirements, and the 144-LQFP package offers ample I/O for multiple LIN/CAN peripherals.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAMS70Q21B-ANT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ATSAME70Q21B-ANT | ATSAME70Q21B-AN | ATSAMS70Q20A-AN | ATSAME70N20A-AN | ATSAME70Q21A-CNT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same |
| Core | ARM Cortex-M7 with FPU | ARM Cortex-M7 with FPU | ARM Cortex-M7 with FPU | ARM Cortex-M7 with FPU | ARM Cortex-M7 with FPU | ARM Cortex-M7 with FPU |
| Maximum Clock | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz |
| Flash Memory | 2 MB | 2 MB | 2 MB | 1 MB (-50%) | 2 MB | 2 MB |
| SRAM | 384 KB | 384 KB | 384 KB | 384 KB | Larger SRAM | 384 KB |
| Peripheral Set | EMAC, HS USB, CAN-FD, ISI | EMAC, HS USB, CAN-FD, HS SPI, ISI | EMAC, HS USB, CAN-FD, HS SPI, ISI | EMAC, HS USB, CAN-FD, ISI | EMAC, HS USB, CAN-FD, HS SPI, ISI | Earlier die, similar peripherals |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Bảo phân biệt quan trọng
- Highest-performance Cortex-M7 in Microchip SAM family (vsATSAMS70Q20A-AN)
- SAM E70 variant adds HS SPI + image sensor interface (vsATSAMS70Q21B-ANT (this product))
- Pin-compatible with SAM E70 N-variant for larger SRAM (vsATSAME70N20A-AN)
Ghi chú thiết kế
The ATSAMS70Q21B-ANT requires separate supplies: VDDIO 3.0-3.6 V for I/O, VDDIN 3.0-3.6 V for core LDO input, and VDDPLL with clean filtering for the PLL. Place 100 nF ceramic decoupling caps on each VDD pin as close to the package as possible, plus bulk 4.7 uF on VDDIN and 1 uF on VDDPLL. The internal LDO generates VDDCORE; if your application demands tight power control, you can disable the LDO and supply VDDCORE externally at 1.2 V. Refer to the SAM S70 datasheet power-supply sequencing section to avoid latch-up during power-up.
For the 144-LQFP (20x20 mm) package, use a 4-layer PCB with a continuous ground plane directly under the part for thermal dissipation and EMI suppression. Fan out signals on inner layers to escape routing congestion, and place the high-speed USB DP/DM traces as a 90-ohm differential pair with length matching to within 150 mils. Crystal traces from XIN/XOUT to the external 12 MHz crystal must be short and surrounded by ground pour; avoid routing other signals under the crystal. Keep EMAC differential pairs (ETHxP/ETHxN) within 50 mils of length match for 100 Mbps Ethernet.
Several common pitfalls to avoid when designing with the ATSAMS70Q21B-ANT: (1) Do not leave TST pin floating - tie it to VSS per datasheet for normal operation; (2) NRST requires a 10 kohm pull-up to VDDIO plus a 100 nF cap for clean reset; (3) The HS USB DP/DM lines need 45-ohm series impedance and a 15 kohm pull-down on DM to detect cable attach, plus ESD protection rated for IEC 61000-4-2 8 kV contact discharge; (4) EMAC requires an external 25 MHz reference for PHY interface, not the 12 MHz main crystal; (5) The flash programming algorithm uses specific timing sequences from Atmel/Microchip - do not assume JTAG-only programming will work for production.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Industrial grade temperature range -40 C to +85 C. Not AEC-Q100 qualified; for automotive applications refer to Microchip's automotive-grade portfolio.
