ATSAME70Q20A-CN - 300MHz Cortex-M7 MCU 1MB Flash LFBGA-144 | Microchip
料号： ATSAME70Q20A-CN ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $13.96 | $13.96 |
| 10 | $12.56 | $125.60 |
| 100 | $11.17 | $1,117.00 |
| 500 | $10.05 | $5,025.00 |
| 1,000 | $8.93 | $8,930.00 |
ATSAME70Q20A-CN 概述
A Cortex-M7 microcontroller is a 32-bit ARM processor core designed for high-performance embedded applications, featuring a six-stage superscalar pipeline, single/double-precision FPU, and tightly-coupled memory for deterministic real-time response. Within the broader hierarchy, the M7 sits above Cortex-M4 microcontrollers in compute capability and below Cortex-A application processors, belonging to the ARM microcontroller family used in motor control, industrial automation, and audio processing. The ATSAME70Q20A-CN adds DSP extensions, MPU, and a rich peripheral set, positioning it for high-end embedded designs.
Key features include 1 MB embedded Flash with error correction, 384 KB SRAM (including 128 KB TCM for core data), a 16-bit External Bus Interface (EBI) supporting SDRAM, NAND Flash, and SRAM, USB 2.0 High-Speed with on-chip PHY, dual CAN-FD controllers, Ethernet MAC with 1588 PTP support, and a 12-bit ADC up to 1.7 Msps. Cryptographic features include AES, TRNG, and secure boot. The high-speed peripheral set makes the part suitable for industrial connectivity, HMI, and audio codec interfaces.
The ATSAME70Q20A-CN's architecture combines Cortex-M7 core performance with Microchip's SAM family peripheral integration. The FPU accelerates floating-point DSP tasks like FFT, FIR filtering, and motor control algorithms. Dual tightly-coupled memories (TCM) provide deterministic code/data access without wait states, while the multi-layer bus matrix allows simultaneous peripheral DMA traffic. Hardware cryptographic acceleration offloads AES and TRNG from the CPU.
Typical applications include industrial motor control (FOC drives, servo controllers), audio processing (multi-channel playback, USB audio interfaces), HMI and graphical touch panels, building automation gateways, and high-speed communication hubs (CAN-FD, USB, Ethernet). The 1 MB Flash supports complex RTOS and full TCP/IP stacks with HTTPS.
When designing with the ATSAME70Q20A-CN, ensure proper decoupling with 100 nF ceramic capacitors on every supply pin and a 4.7 uF bulk capacitor on VDDIO. The LFBGA-144 package requires PCB design with microvia technology and controlled impedance routing for high-speed USB and Ethernet traces. The internal 1.2V core LDO must be enabled with external capacitors per the datasheet reference circuit.
This page synthesizes distributor pricing across 12 channels, drop-in SAME70 family alternatives, and PCB design notes not found in the manufacturer datasheet, providing engineering context for high-performance Cortex-M7 MCU selection.
直接替换替代料： ATSAME70Q20A-CN ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATSAME70Q20A-CN （相同外形与封装尺寸） ——差异在于 Package, ADC, SRAM, USB, Mounting Type.
快速对比工具——选择替代料号进行并排对比：
ATSAME70Q20A-CNT
✅ 直接替换✓ 有现货
$11.18 / 个
查看数据手册 →ATSAME70Q19A-CN
✅ 直接替换✓ 有现货
$6.68 / 个
查看数据手册 →ATSAME70Q21A-CN
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$17.55 / 个
查看数据手册 →ATSAME70N20A-CN
✅ 直接替换✓ 有现货
$7.75 / 个
查看数据手册 →ATSAME70N21B-CN
✅ 直接替换✓ 有现货
$12.1 / 个
查看数据手册 →ATSAME70Q20A-CN 最大额定值与电气特性
| Core Architecture | ARM Cortex-M7 with FPU |
| Maximum Clock Speed | 300 MHz |
| Program Memory (Flash) | 1024 KB (1 MB) |
| SRAM | 384 KB (includes 128 KB TCM) |
| 电源电压 | 1.8V / 2.5V / 3.3V |
| 工作温度 | -40C to +85C (Industrial) |
| 封装 | 144-pin LFBGA (10x10 mm) |
| ADC | 12-bit, up to 1.7 Msps |
| USB | USB 2.0 High-Speed with on-chip PHY |
| CAN | 2x CAN-FD controllers |
| Ethernet | 10/100 MAC with 1588 PTP |
| External Bus Interface (EBI) | 16-bit (SDRAM, NAND, SRAM) |
| Crypto Acceleration | AES, TRNG, Secure Boot |
| 安装类型 | Surface Mount (BGA) |
| RoHS 状态 | Compliant |
ATSAME70Q20A-CN 144-pin lfbga (10x10 mm) 引脚配置指南
ATSAME70Q20A-CN（144-pin lfbga (10x10 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： ATSAME70Q20A-CN.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATSAME70Q20A-CN 适用于 6 应用s: Industrial Motor Control (FOC), Industrial HMI and Touch Panels, USB Audio Interfaces, Building Automation Gateways, Automotive Infotainment Controllers, Industrial IoT Edge Controllers.
Industrial Motor Control (FOC)
The ATSAME70Q20A-CN's Cortex-M7 core with FPU executes field-oriented control algorithms for PMSM and AC induction motors with deterministic sub-microsecond loop times. Its 384 KB SRAM (128 KB TCM) holds FOC state variables without cache misses, while the 1 MB Flash stores complete firmware plus motor parameter tables. The 1.7 Msps ADC samples phase currents at the PWM rate, and the PWM peripherals with complementary outputs drive three-phase inverter bridges directly.
推荐
Industrial HMI and Touch Panels
The ATSAME70Q20A-CN drives TFT LCD displays through its EBI interface with SDRAM expansion, while its 300 MHz core renders graphical assets smoothly with anti-aliased fonts and animated widgets. The 1 MB Flash stores multilingual UI resources, bitmap assets, and the LVGL or emWin graphics library. The Ethernet MAC enables remote HMI updates over Modbus TCP or EtherNet/IP, and the capacitive touch interface is supported through hardware I2C peripherals.
推荐
USB Audio Interfaces
The ATSAME70Q20A-CN's USB 2.0 High-Speed with on-chip PHY delivers 480 Mbps bandwidth suitable for multi-channel USB Audio Class 2.0 streaming at 24-bit/192 kHz. The Cortex-M7's DSP extensions accelerate audio DSP algorithms including EQ, dynamics, and reverb in real time. The I2S peripheral connects to professional ADC/DAC codecs, while the 384 KB SRAM buffers audio streams without compression, preserving bit-perfect audio quality for studio applications.
推荐
Building Automation Gateways
The ATSAME70Q20A-CN serves as a multi-protocol building automation gateway with simultaneous support for BACnet, KNX, Modbus, and LonWorks through its dual CAN-FD controllers, USART, and Ethernet MAC. The 1 MB Flash holds TLS certificates and full TCP/IP stacks, while AES/TRNG hardware acceleration secures device-to-cloud communication. Real-time scheduling runs on the Cortex-M7 with deterministic interrupt response for HVAC and lighting control loops.
推荐
Automotive Infotainment Controllers
The ATSAME70Q20A-CN's CAN-FD controllers and high-speed processing support automotive infotainment subsystems, head-unit control, and telematics modules. Its industrial temperature rating plus robust peripheral set enables deployment in cabin and telematics environments. The Cortex-M7's FPU accelerates audio decoding (MP3, AAC, FLAC) and voice recognition preprocessing, while the 1 MB Flash stores firmware, audio bitmaps, and voice command databases.
推荐
Industrial IoT Edge Controllers
The ATSAME70Q20A-CN runs edge analytics and machine learning inference at industrial endpoints using its Cortex-M7 DSP capabilities. The Ethernet MAC with 1588 PTP timestamp synchronizes distributed control loops across factory networks, while the 1 MB Flash stores TensorFlow Lite for Microcontrollers models plus MQTT-SN and OPC UA stacks. Hardware AES and TRNG enable secure boot and encrypted OTA firmware updates over the air.
推荐
推荐产品汇总
工程参考数据： ATSAME70Q20A-CN ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATSAME70Q20A-CNT | ATSAME70Q19A-CN | ATSAME70Q21A-CN | ATSAME70N20A-CN | ATSAME70N21B-CN |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 144-pin LFBGA (10x10 mm) | 144-pin LFBGA (10x10 mm) | 144-pin LFBGA (10x10 mm) | 144-pin LFBGA (10x10 mm) | 144-pin LFBGA (10x10 mm) | 144-pin LFBGA (10x10 mm) |
| 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 |
| Flash Memory | 1024 KB (1 MB) | 1024 KB (1 MB) | 512 KB | 2048 KB (2 MB) | 1024 KB (1 MB) | 2048 KB (2 MB) |
关键差异点
- 1 MB Flash with ECC at Cortex-M7 speed class （对比 ATSAME70Q19A-CN)
- Cost-optimized vs Q21A at half Flash density （对比 ATSAME70Q21A-CN)
- Industrial temperature range with full SAME70 feature set （对比 ATSAME70N20A-CN)
设计说明
The 144-pin LFBGA package with 0.8 mm ball pitch requires microvia PCB technology and controlled impedance routing for high-speed interfaces. Place 100 nF ceramic decoupling capacitors within 2 mm of every supply pin, plus a 4.7 uF bulk capacitor near VDDIO. Use a 4-layer PCB stackup with dedicated ground and power planes. USB differential pair (D+/D-) must maintain 90 ohm differential impedance, while Ethernet MDI traces need 100 ohm differential impedance with length matching within 2 mm.
The ATSAME70Q20A-CN integrates a 1.2V core LDO that must be enabled per the datasheet reference circuit. Connect VDDOUT to VDDCORE with a 1 uF + 4.7 uF capacitor combination per the manufacturer reference design. The internal regulator handles full 300 MHz operation including FPU load. For low-power applications, the device supports Sleep, Deep Sleep, and Backup modes with RTC, where quiescent current drops below 1 uA.
Route the external bus interface (EBI) signals with matched trace lengths and ground reference for reliable SDRAM operation at 75 MHz. Keep the crystal oscillator traces short and symmetric; place the 12 MHz crystal within 5 mm of XIN/XOUT pins with guard ground ring. The USB PHY requires precise 24 MHz reference clock with low jitter; follow the SAME70 Xplained Ultra reference design for validated USB layout. Add ESD protection diodes on USB and Ethernet PHY interfaces.
Common mistakes with the ATSAME70Q20A-CN include omitting the 32.768 kHz crystal for RTC backup mode, neglecting the VDDIO decoupling capacitors, and using improper BGA rework profiles. The Flash endurance is rated at 10K cycles per sector - implement wear-leveling for EEPROM emulation in parameter storage. Ensure JTAG/SWD pull-up resistors are correctly placed; missing pull-ups cause intermittent programming failures. Verify the boot configuration pins (BOOT0, BOOT1) are properly set for the chosen boot source.
合规信息
RoHS compliant per Microchip product page. Industrial temperature range -40C to +85C. Not AEC-Q100 qualified - select AEC-Q100 qualified SAM variant for automotive applications.
