ATSAME70Q20B-ANT - 300MHz Cortex-M7 MCU 1MB Flash LQFP-144
MPN: ATSAME70Q20B-ANT ✓ Hoạt độngATSAME70Q20B-ANT Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals on one silicon die. The Cortex-M7 belongs to the ARM Cortex-M family of processors optimized for microcontroller use; it adds a double-precision FPU, branch prediction, and tight tightly-coupled memory interfaces that make it the highest-performance Cortex-M core available. Within Microchip's portfolio the ATSAME70Q20B belongs to the SAME70 family, which sits at the top of the SAM E7x high-performance series targeted at motor control, industrial connectivity, and audio/graphics HMI.
Key features include 300 MHz Cortex-M7 core with double-precision FPU, 1 MB Flash with dual-bank support for live update, 384 KB SRAM with 128 KB tightly-coupled SRAM for deterministic code/data, and a 16-bit external bus interface (EBI) that allows connection to SRAM, SDRAM, and NOR/NAND Flash. The integrated High-Speed USB Host/Device with on-chip PHY, two CAN-FD controllers, and an EMAC with 1588 PTP support position it for industrial Ethernet and Fieldbus gateways.
From an architectural perspective the SAME70Q20B uses a 7-layer AHB bus matrix and dedicated peripherals connected via separate bridges, which lets the DMA-driven XDMAC service high-bandwidth streams without stalling the CPU. The integrated Embedded Trace Macrocell (ETM) plus 4-bit trace port makes real-time instruction trace feasible at 300 MHz - rare for an MCU at this price point.
Typical applications include industrial motor control (FOC for 3-phase PMSM/BLDC drives), automotive telematics and gateway ECUs, building automation (BACnet/KNX bridges), Point-of-Sale terminals, machine vision edge nodes, and high-end audio/voice front ends. Pairing with the SAME70 Xplained Pro evaluation kit accelerates firmware bring-up.
When designing with the ATSAME70Q20B-ANT, pay attention to the 1.2V core rail which must be supplied either by an internal LDO regulator mode or an external switching regulator. Decoupling the VDDCORE pin with 100 nF + 4.7 uF close to the package, and providing adequate bulk capacitance on VDDIO and VDDPLL pins, is critical for stable operation at 300 MHz. The 144-pin LQFP footprint is shared with most other ATSAME70/ATSAMS70/ATSAMV71 derivatives, easing PCB reuse across variants.
This page synthesizes distributor pricing for the ATSAME70Q20B-ANT, lists same-family drop-in alternatives, and combines practical design guidance not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho ATSAME70Q20B-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 ATSAME70Q20B-ANT (cùng hình factor và footprint) — khác nhau ở Package, USB, ADC, Program Memory (Flash), SRAM.
ATSAME70Q19B-ANT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME70Q21B-ANT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMS70Q20B-ANT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAMV71Q20B-ANT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32F767ZIT6
✅ Drop-In✗ Hết hàng
$17.6 / Đơn vị
Xem tài liệu →ATSAME70Q20B-ANT Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M7 with FPU |
| Maximum CPU Clock | 300 MHz |
| Program Memory (Flash) | 1 MB (1024 KB) |
| Data Memory (SRAM) | 384 KB total (256 KB + 128 KB TCM) |
| Operating Voltage (VDDIO) | 1.62 V to 3.6 V |
| Core Voltage (VDDCORE) | 1.2 V nominal |
| Nhiệt độ hoạt động | -40 C to +105 C (industrial) |
| Hộp | 144-pin LQFP, 20x20 mm |
| External Bus Interface (EBI) | 16-bit data, 24-bit address |
| PWM Channels | Yes (PWM peripherals included) |
| ADC | Yes (on-chip) |
| DAC | Yes (on-chip) |
| DMA Controller | XDMAC (yes) |
| USB | High-Speed USB Host/Device with on-chip PHY |
| Ethernet | EMAC with 1588 PTP, GMII/RMII/MII |
| CAN | 2x CAN-FD controllers |
| Kiểu lắp đặt | Surface Mount (LQFP) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| Cấp MSL | 3 (168 hours) |
Cấu hình chân ATSAME70Q20B-ANT
| Chân 1 | PD0 — General I/O / EBI data |
| Chân 2 | PD1 — General I/O / EBI data |
| Chân 3 | PD2 — General I/O / EBI data |
| Chân 4 | PD3 — General I/O / EBI data |
| Chân 5 | PD4 — General I/O / EBI data |
| Chân 6 | PD5 — General I/O / EBI data |
| Chân 7 | PD6 — General I/O / EBI data |
| Chân 8 | PD7 — General I/O / EBI data |
| Chân 9 | VSS — Ground |
| Chân 10 | VDDIO — I/O supply (1.62V-3.6V) |
| Chân 11 | VDDOUT — Internal regulator output / external core supply |
| Chân 12 | VDDCORE — Core supply (1.2V nominal) |
| Chân 13 | PA0 — General I/O / PWM / AFEC |
| Chân 14 | PA1 — General I/O / PWM / AFEC |
| Chân 15 | PA2 — General I/O / PWM |
| Chân 16 | PA3 — General I/O / PWM |
| Chân 17 | PA4 — General I/O |
| Chân 18 | PA5 — General I/O |
| Chân 19 | PA6 — General I/O |
| Chân 20 | PA7 — General I/O |
| Chân 21 | PA8 — General I/O |
| Chân 22 | PA9 — General I/O |
| Chân 23 | PA10 — General I/O |
| Chân 24 | PA11 — General I/O |
| Chân 25 | PA12 — General I/O |
| Chân 26 | PA13 — General I/O |
| Chân 27 | PA14 — General I/O |
| Chân 28 | VSS — Ground |
| Chân 29 | VDDIO — I/O supply |
| Chân 30 | PB0 — General I/O |
| Chân 31 | PB1 — General I/O |
| Chân 32 | PB2 — General I/O |
| Chân 33 | PB3 — General I/O |
| Chân 34 | PB4 — General I/O |
| Chân 35 | PB5 — General I/O |
| Chân 36 | PB6 — General I/O |
| Chân 37 | PB7 — General I/O |
| Chân 38 | PB8 — General I/O |
| Chân 39 | PB9 — General I/O |
| Chân 40 | PB10 — General I/O |
| Chân 41 | PB11 — General I/O |
| Chân 42 | PB12 — General I/O |
| Chân 43 | PB13 — General I/O |
| Chân 44 | PB14 — General I/O |
| Chân 45 | VSS — Ground |
| Chân 46 | VDDIO — I/O supply |
| Chân 47 | PC0 — General I/O |
| Chân 48 | PC1 — General I/O |
| Chân 49 | PC2 — General I/O |
| Chân 50 | PC3 — General I/O |
| Chân 51 | PC4 — General I/O |
| Chân 52 | PC5 — General I/O |
| Chân 53 | PC6 — General I/O |
| Chân 54 | PC7 — General I/O |
| Chân 55 | PC8 — General I/O |
| Chân 56 | PC9 — General I/O |
| Chân 57 | PC10 — General I/O |
| Chân 58 | PC11 — General I/O |
| Chân 59 | PC12 — General I/O |
| Chân 60 | PC13 — General I/O |
| Chân 61 | PC14 — General I/O |
| Chân 62 | PC15 — General I/O |
| Chân 63 | VSS — Ground |
| Chân 64 | VDDIO — I/O supply |
| Chân 65 | PD8 — General I/O / EBI |
| Chân 66 | PD9 — General I/O / EBI |
| Chân 67 | PD10 — General I/O / EBI |
| Chân 68 | PD11 — General I/O / EBI |
| Chân 69 | PD12 — General I/O / EBI |
| Chân 70 | PD13 — General I/O / EBI |
| Chân 71 | PD14 — General I/O / EBI |
| Chân 72 | PD15 — General I/O / EBI |
| Chân 73 | PD16 — General I/O / EBI |
| Chân 74 | PD17 — General I/O / EBI |
| Chân 75 | PD18 — General I/O / EBI |
| Chân 76 | PD19 — General I/O / EBI |
| Chân 77 | PD20 — General I/O / EBI |
| Chân 78 | PD21 — General I/O / EBI |
| Chân 79 | PD22 — General I/O / EBI |
| Chân 80 | PD23 — General I/O / EBI |
| Chân 81 | PD24 — General I/O / EBI |
| Chân 82 | PD25 — General I/O / EBI |
| Chân 83 | PD26 — General I/O / EBI |
| Chân 84 | PD27 — General I/O / EBI |
| Chân 85 | VSS — Ground |
| Chân 86 | VDDIO — I/O supply |
| Chân 87 | PD28 — General I/O / EBI |
| Chân 88 | PD29 — General I/O / EBI |
| Chân 89 | PD30 — General I/O / EBI |
| Chân 90 | PD31 — General I/O / EBI |
| Chân 91 | PE0 — General I/O |
| Chân 92 | PE1 — General I/O |
| Chân 93 | PE2 — General I/O |
| Chân 94 | PE3 — General I/O |
| Chân 95 | PE4 — General I/O |
| Chân 96 | PE5 — General I/O |
| Chân 97 | VSS — Ground |
| Chân 98 | VDDIO — I/O supply |
| Chân 99 | NRST — Reset (active low) |
| Chân 100 | TDI — JTAG Test Data In |
| Chân 101 | TDO — JTAG Test Data Out |
| Chân 102 | TMS — JTAG Test Mode Select |
| Chân 103 | TCK — JTAG Test Clock |
| Chân 104 | SWDIO — SWD Data |
| Chân 105 | SWCLK — SWD Clock |
| Chân 106 | VSS — Ground |
| Chân 107 | VDDIO — I/O supply |
| Chân 108 | XIN — Main crystal oscillator input |
| Chân 109 | XOUT — Main crystal oscillator output |
| Chân 110 | VDDPLL — PLL supply |
| Chân 111 | VSSPLL — PLL ground |
| Chân 112 | XIN32 — 32.768 kHz crystal input |
| Chân 113 | XOUT32 — 32.768 kHz crystal output |
| Chân 114 | VBAT — Battery backup supply |
| Chân 115 | VSS — Ground |
| Chân 116 | PA15 — General I/O |
| Chân 117 | PA16 — General I/O |
| Chân 118 | PA17 — General I/O |
| Chân 119 | PA18 — General I/O |
| Chân 120 | PA19 — General I/O |
| Chân 121 | PA20 — General I/O |
| Chân 122 | PA21 — General I/O |
| Chân 123 | PA22 — General I/O |
| Chân 124 | PA23 — General I/O |
| Chân 125 | PA24 — General I/O |
| Chân 126 | PA25 — General I/O |
| Chân 127 | PA26 — General I/O |
| Chân 128 | PA27 — General I/O |
| Chân 129 | PA28 — General I/O |
| Chân 130 | PA29 — General I/O |
| Chân 131 | PA30 — General I/O |
| Chân 132 | PA31 — General I/O |
| Chân 133 | VSS — Ground |
| Chân 134 | VDDIO — I/O supply |
| Chân 135 | PB15 — General I/O |
| Chân 136 | PB16 — General I/O |
| Chân 137 | PB17 — General I/O |
| Chân 138 | PB18 — General I/O |
| Chân 139 | PB19 — General I/O |
| Chân 140 | PB20 — General I/O |
| Chân 141 | PB21 — General I/O |
| Chân 142 | PB22 — General I/O |
| Chân 143 | PB23 — General I/O |
| Chân 144 | PE6 — General I/O |
Ứng dụng tiêu biểu
ATSAME70Q20B-ANT phù hợp cho 8 Áp dụngs: Industrial Motor Control (FOC), Industrial Ethernet / Fieldbus Gateway, Building Automation Controllers, Point-of-Sale and Kiosk Terminals, Audio and Voice Front Ends, Automotive Telematics Gateways, Machine Vision Edge Nodes, Medical Monitoring Devices.
Industrial Motor Control (FOC)
The ATSAME70Q20B-ANT drives 3-phase PMSM and BLDC motors in Field-Oriented Control (FOC) loops thanks to its 300 MHz Cortex-M7 core completing a 32 kHz current-loop iteration in under 5 microseconds. With 384 KB SRAM and a 16-bit EBI for external SDRAM buffering, the MCU supports sensored and sensorless FOC algorithms including space-vector modulation, SVPWM dead-time insertion, and quadrature encoder decoding in parallel with the XDMAC streams. Microchip's SAME70 motor-control firmware library and the SAME70 Xplained Pro + ATSAME70-Motor-Plug kit accelerate 24V-to-48V industrial servo and pump drives. Engineers migrating from STM32F4 motor libraries can port code with minor register-level changes due to similar peripheral naming.
Được đề xuất
Industrial Ethernet / Fieldbus Gateway
The ATSAME70Q20B-ANT is a strong fit for industrial Ethernet gateways because it integrates an EMAC with IEEE 1588 PTP hardware timestamping and an MII/RMII/GMII/RGMII PHY interface, eliminating the need for an external Ethernet controller. Pairing it with a Microchip KSZ8061 or LAN8742 PHY, the device runs EtherCAT, PROFINET, EtherNet/IP, Modbus TCP, and BACnet/IP stacks concurrently while its two CAN-FD channels bridge to CANopen or J1939 networks. The 1 MB dual-bank Flash supports live firmware update over the fieldbus without equipment downtime - a hard requirement for many process-industry installations.
Được đề xuất
Building Automation Controllers
Building automation hubs and BACnet/KNX/DALI controllers benefit from the ATSAME70Q20B-ANT's mix of peripherals: dual CAN-FD for HVAC damper and chiller bus integration, USB Host for DALI-2 commissioning dongles, Ethernet for BACnet/IP backbone connectivity, and high-resolution PWM channels for LED-driver dimming. The 384 KB SRAM is large enough for protocol stacks to coexist (BACnet/IP, KNXnet/IP, Modbus TCP, MQTT-SN) while still leaving room for user-space applications. Industrial -40 C to +105 C temperature tolerance ensures reliability in rooftop equipment and outdoor cabinets.
Được đề xuất
Point-of-Sale and Kiosk Terminals
POS terminals and self-service kiosks require the ATSAME70Q20B-ANT's combination of High-Speed USB Host/Device for printer/scanner peripherals, EMAC for cloud transaction backhaul, and TFT/LCD interface support for touchscreens. The 1 MB Flash holds a Linux-grade graphical stack or a Micrium OS-II/uFs-based GUI plus full POS firmware without external memory. The 16-bit EBI supports PSRAM or SDRAM for image buffering at the booth camera, and the 300 MHz Cortex-M7 handles barcode-decoding and contactless-payment cryptographic workflows in real time.
Được đề xuất
Audio and Voice Front Ends
The ATSAME70Q20B-ANT targets high-end audio front ends with its Cortex-M7 DSP extensions (single-precision MAC instructions), the on-chip DAC for headphone-amplifier bias generation, and the I2S peripheral for digital-microphone array capture. USB Audio Class 2.0 device stacks run on the High-Speed USB peripheral with on-chip PHY, while the EMAC transports multichannel VoIP to a host system. With 384 KB SRAM, beam-forming and acoustic-echo-cancellation DSP can run at audio rates without external memory.
Được đề xuất
Automotive Telematics Gateways
Automotive telematics ECUs use the ATSAME70Q20B-ANT because the -105 C industrial temperature range suits cabin and engine-bay placement, dual CAN-FD controllers cover vehicle-bus aggregation, and the EMAC backhauls LTE-V2X or 5G modem data. The 1 MB dual-bank Flash enables secure firmware-over-the-air (FOTA) update flows critical to OEM telematics programs. The Cortex-M7 with FPU handles sensor fusion for GNSS, IMU, and dead-reckoning data without sacrificing cycle time for radio-protocol handling.
Được đề xuất
Machine Vision Edge Nodes
Industrial machine-vision edge nodes leverage the ATSAME70Q20B-ANT's 300 MHz Cortex-M7 to pre-process image data from CMOS sensors via the integrated camera interface (when paired with the ATSAMV71 family) or via high-speed parallel bus through the EBI. The XDMAC moves pixel data into SRAM without CPU intervention, freeing the core for OpenCV-class edge-detection filters and object-classification CNNs. The EMAC streams compressed JPEG or H.264 metadata to a central server, while CAN-FD reports diagnostics back to the PLC.
Được đề xuất
Medical Monitoring Devices
Patient-monitoring devices benefit from the ATSAME70Q20B-ANT's deterministic Cortex-M7 core for low-latency ECG, SpO2, and capnography DSP filtering. The 16-bit ADC with oversampling capability supports direct sensor input, and the DAC drives bias currents for analog front ends. The -40 C to +105 C industrial temperature rating and Microchip's longevity program make it suitable for long-life-cycle medical instruments. Note: medical certification is the OEM's responsibility; this MCU is not FDA-listed on its own.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAME70Q20B-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 | ATSAME70Q19B-ANT | ATSAME70Q21B-ANT | ATSAMS70Q20B-ANT | ATSAMV71Q20B-ANT | STM32F767ZIT6 |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | STMicroelectronics |
| Package | LQFP-144 (20x20 mm) | LQFP-144 - same | LQFP-144 - same | LQFP-144 - same | LQFP-144 - same | LQFP-144 - same |
| Core | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 |
| Max CPU Clock | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 216 MHz |
| Flash | 1 MB | 512 KB | 2 MB | 1 MB | 1 MB | 2 MB |
| SRAM | 384 KB | 384 KB | 384 KB | 384 KB | 384 KB | 512 KB |
| Ethernet | EMAC with 1588 PTP | EMAC with PTP | EMAC with PTP | EMAC with PTP | No EMAC | EMAC with PTP |
| CAN-FD Controllers | 2 | 2 | 2 | 2 | 2 | 2 |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +85 C |
Bảo phân biệt quan trọng
- Highest-performance Cortex-M7 MCU in Microchip SAM portfolio (vsATSAME54P20A-AFT)
- Integrated Ethernet MAC with 1588 PTP timestamping (vsATSAMV71Q20B-ANT)
- Dual-bank 1 MB Flash with live firmware update (vsATSAME70Q19B-ANT)
- Industrial temperature range -40 C to +105 C vs commercial 85 C (vsSTM32F767ZIT6)
Ghi chú thiết kế
The ATSAME70Q20B-ANT requires a clean 1.2V core supply capable of delivering peak currents up to 150 mA at 300 MHz CPU activity. Place a 100 nF X7R ceramic capacitor plus a 4.7 uF bulk capacitor within 5 mm of the VDDCORE pin; use a low-noise LDO or a 1.2V switching regulator with input feedforward compensation. The internal voltage regulator (LDO mode) is convenient for prototyping but dissipates up to 200 mW extra at 3.3V VDDIO - switch to external switching mode for production thermal management.
Route the crystal traces XIN/XOUT and XIN32/XOUT32 with 50-ohm impedance and keep them shorter than 5 mm, surrounded by a guard ground ring connected to VSSPLL/VSS. Decouple VDDPLL with a 100 nF + 1 uF pair. Place the NRST reset pull-up (10 kohm) and 100 nF decoupling capacitor close to the pin. The High-Speed USB DP/DM traces require 90-ohm differential impedance and a common-mode choke for EMI compliance.
Estimated: At 300 MHz, 100% CPU utilization with all peripherals active, the ATSAME70Q20B-ANT consumes approximately 350 mW. The LQFP-144 package has a theta_JA of approximately 50 C/W (typical 4-layer JEDEC test board), yielding a 17.5 C temperature rise above ambient. For continuous industrial-temperature operation at 105 C ambient, design PCB copper pours or attach a small heatsink if the enclosure has limited airflow. The part derates gracefully - the core clock can be reduced via the PMC at high temperatures.
Common pitfalls when designing with the ATSAME70Q20B-ANT: (1) Forgetting to set the PMC_PCER1 register after enabling peripheral clocks - peripherals appear unresponsive. (2) Configuring the EBI in 16-bit mode without proper DQS/NAND-Ready timing for the external SDRAM/NOR flash. (3) Enabling the on-chip USB PHY with the wrong PLL configuration - reference design values in section 43 of the datasheet must be followed exactly. (4) Ignoring the bootstrap pins - SYSBOOT[9:0] must be set correctly at NRST release for the chosen boot source.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. The ATSAME70Q20B-ANT is NOT AEC-Q100 qualified; for automotive ECUs requiring AEC-Q100 grade, consult Microchip's automotive SAM DA1/SAM V71Q21 AEC-Q100 qualified variants. Halogen-free status not stated in verified data - treat as unknown.
