ATSAME70Q21B-AN - ARM Cortex-M7 MCU 300MHz 2MB Flash | Microchip
MPN: ATSAME70Q21B-AN ✓ Hoạt độngATSAME70Q21B-AN Tóm tắt
An MCU (Microcontroller Unit) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The Cortex-M7 class is ARM's highest-performance microcontroller core, featuring a 6-stage pipeline, superscalar dual-issue execution, hardware FPU, and tightly-coupled memories for deterministic latency. Compared to Cortex-M4 parts, Cortex-M7 devices offer roughly 2x DMIPS performance, an enhanced SIMD instruction set, and an L1 cache, making them suitable for advanced signal processing and graphics applications.
Key features of the ATSAME70Q21B-AN include: 300 MHz core clock, 2 MB embedded Flash, 384 KB SRAM with ECC, 16-bit External Bus Interface (EBI) supporting SDRAM, High-Speed USB Host/Device with on-chip PHY, dual CAN-FD controllers, Ethernet MAC (GMAC) with 1588 PTP, 12-bit 2 MSPS ADC, and image sensor interface. Security features include a True Random Number Generator (TRNG), hardware AES, secure boot, and flash tamper detection. The peripheral set is interconnected via AHB/APB matrix for low-latency DMA access.
The device integrates a multi-layer bus matrix with two DMA controllers (16 channels total) and dual ports, allowing concurrent CPU and data transfer operations without contention. Its SmartMem peripherals include eMMC/SD card interface, NAND Flash controller with ECC, and SDRAM controller. The Event System enables hardware-triggered peripheral cooperation without CPU intervention, improving real-time deterministic behavior.
Typical applications include industrial motor control (FOC for PMSM/BLDC drives), grid protection and smart energy metering, automotive body and infotainment subsystems, high-end audio processing (up to 192 kHz 24-bit codecs), industrial Ethernet nodes with EtherCAT or Profinet support, point-of-sale terminals, and medical diagnostic imaging front-ends. The wide peripheral mix also suits self-contained additive-manufacturing controllers and surveillance DVR systems.
When designing with the ATSAME70Q21B-AN, ensure robust VDDCORE decoupling with 100 nF + 4.7 µF ceramic capacitors per the reference schematic design guide, since high-frequency CPU transitions demand low-impedance power delivery. Plan the PCB for the 20x20 mm LQFP footprint with multiple GND return paths and keep the high-speed USB traces 90 ohms differential-impedance matched.
This page synthesizes distributor pricing, drop-in alternatives within the SAM E70 family, and reference-design-aware engineering notes not assembled in the manufacturer datasheet, offering engineers a faster path from spec review to prototype.
Bộ thay thế dễ dàng lắp đặt cho ATSAME70Q21B-AN — 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 ATSAME70Q21B-AN (cùng hình factor và footprint) — khác nhau ở Package, ADC, Ethernet, Operating Temperature, USB.
ATSAME70Q20B-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME70N20B-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMS70Q21B-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME70Q21A-CNT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMV71Q21B-CB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
R7FA6M5AH3CFC
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAME70Q21B-AN Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M7 with FPU and DSP extensions |
| Tần số xung maksimum | 300 MHz |
| Program Memory | 2 MB (2048 Kbytes) Flash |
| Data Memory | 384 KB SRAM |
| Operating Voltage Range | 1.62 V to 3.6 V (VDDIO), 1.2 V (VDDCORE) |
| Hộp | 144-pin LQFP (20 x 20 mm) |
| Kiểu lắp đặt | Surface Mount |
| Khoảng nhiệt độ hoạt động | -40 C to +105 C (industrial) |
| ADC | 12-bit, up to 2 MSPS |
| High-Speed USB | USB Host + Device with on-chip HS PHY |
| Ethernet | GMAC (10/100) with IEEE 1588 PTP |
| CAN-FD Controllers | 2 |
| External Memory Interface | EBI with 16-bit data bus, SDRAM/NAND/NOR support |
| Image Sensor Interface (ISI) | Yes |
| Hardware AES | Yes (AES-256) |
| True Random Number Generator (TRNG) | Yes |
| DMA Channels | 16 (two 8-channel XDMAC) |
| Trạng thái RoHS | ROHS3 Compliant |
Cấu hình chân ATSAME70Q21B-AN
| Chân 1 | PA0 — GPIO / Peripheral A |
| Chân 2 | PA1 — GPIO / Peripheral A |
| Chân 3 | VDDIO — I/O supply voltage |
| Chân 4 | PA2 — GPIO / Peripheral A |
| Chân 5 | VSS — Ground |
| Chân 6 | PA3 — GPIO / Peripheral A |
| Chân 7 | PA4 — GPIO / Peripheral A |
| Chân 8 | PA5 — GPIO / Peripheral A |
| Chân 9 | PA6 — GPIO / Peripheral A |
| Chân 10 | PA7 — GPIO / Peripheral A |
| Chân 11 | VDDCORE — Core supply voltage (1.2 V) |
| Chân 12 | VSS — Ground |
| Chân 13 | PA8 — GPIO / Peripheral A |
| Chân 14 | PA9 — GPIO / Peripheral A |
| Chân 15 | PA10 — GPIO / Peripheral A |
| Chân 16 | PA11 — GPIO / Peripheral A / USB D- |
| Chân 17 | PA12 — GPIO / Peripheral A / USB D+ |
| Chân 18 | PA13 — GPIO / Peripheral A |
| Chân 19 | PA14 — GPIO / Peripheral A |
| Chân 20 | VDDIO — I/O supply voltage |
| Chân 21 | VSS — Ground |
| Chân 22 | PA15 — GPIO / Peripheral A |
| Chân 23 | PA16 — GPIO / Peripheral A |
| Chân 24 | PA17 — GPIO / Peripheral A |
| Chân 25 | PA18 — GPIO / Peripheral A |
| Chân 26 | PA19 — GPIO / Peripheral A |
| Chân 27 | PA20 — GPIO / Peripheral A |
| Chân 28 | PA21 — GPIO / Peripheral A |
| Chân 29 | PA22 — GPIO / Peripheral A |
| Chân 30 | PA23 — GPIO / Peripheral A |
| Chân 31 | PA24 — GPIO / Peripheral A |
| Chân 32 | PA25 — GPIO / Peripheral A |
| Chân 33 | PA26 — GPIO / Peripheral A |
| Chân 34 | PA27 — GPIO / Peripheral A |
| Chân 35 | PA28 — GPIO / Peripheral A |
| Chân 36 | PA29 — GPIO / Peripheral A |
| Chân 37 | PA30 — GPIO / Peripheral A |
| Chân 38 | PA31 — GPIO / Peripheral A |
| Chân 39 | PB0 — GPIO / Peripheral B |
| Chân 40 | PB1 — GPIO / Peripheral B |
| Chân 41 | PB2 — GPIO / Peripheral B |
| Chân 42 | PB3 — GPIO / Peripheral B |
| Chân 43 | PB4 — GPIO / Peripheral B |
| Chân 44 | PB5 — GPIO / Peripheral B |
| Chân 45 | PB6 — GPIO / Peripheral B |
| Chân 46 | PB7 — GPIO / Peripheral B |
| Chân 47 | PB8 — GPIO / Peripheral B |
| Chân 48 | PB9 — GPIO / Peripheral B |
| Chân 49 | PB10 — GPIO / Peripheral B |
| Chân 50 | PB11 — GPIO / Peripheral B |
| Chân 51 | PB12 — GPIO / Peripheral B |
| Chân 52 | PB13 — GPIO / Peripheral B |
| Chân 53 | PB14 — GPIO / Peripheral B |
| Chân 54 | PB15 — GPIO / Peripheral B |
| Chân 55 | VDDIO — I/O supply voltage |
| Chân 56 | VSS — Ground |
| Chân 57 | PB16 — GPIO / Peripheral B |
| Chân 58 | PB17 — GPIO / Peripheral B |
| Chân 59 | PB18 — GPIO / Peripheral B |
| Chân 60 | PB19 — GPIO / Peripheral B |
| Chân 61 | PB20 — GPIO / Peripheral B |
| Chân 62 | PB21 — GPIO / Peripheral B |
| Chân 63 | PB22 — GPIO / Peripheral B |
| Chân 64 | PB23 — GPIO / Peripheral B |
| Chân 65 | PB24 — GPIO / Peripheral B |
| Chân 66 | PB25 — GPIO / Peripheral B |
| Chân 67 | PB26 — GPIO / Peripheral B |
| Chân 68 | PB27 — GPIO / Peripheral B |
| Chân 69 | PB28 — GPIO / Peripheral B |
| Chân 70 | PB29 — GPIO / Peripheral B |
| Chân 71 | PB30 — GPIO / Peripheral B |
| Chân 72 | PB31 — GPIO / Peripheral B |
| Chân 73 | PC0 — GPIO / Peripheral C |
| Chân 74 | PC1 — GPIO / Peripheral C |
| Chân 75 | PC2 — GPIO / Peripheral C |
| Chân 76 | PC3 — GPIO / Peripheral C |
| Chân 77 | PC4 — GPIO / Peripheral C |
| Chân 78 | PC5 — GPIO / Peripheral C |
| Chân 79 | PC6 — GPIO / Peripheral C |
| Chân 80 | PC7 — GPIO / Peripheral C |
| Chân 81 | VDDIO — I/O supply voltage |
| Chân 82 | VSS — Ground |
| Chân 83 | PC8 — GPIO / Peripheral C |
| Chân 84 | PC9 — GPIO / Peripheral C |
| Chân 85 | PC10 — GPIO / Peripheral C |
| Chân 86 | PC11 — GPIO / Peripheral C |
| Chân 87 | PC12 — GPIO / Peripheral C |
| Chân 88 | PC13 — GPIO / Peripheral C |
| Chân 89 | PC14 — GPIO / Peripheral C |
| Chân 90 | PC15 — GPIO / Peripheral C |
| Chân 91 | PC16 — GPIO / Peripheral C |
| Chân 92 | PC17 — GPIO / Peripheral C |
| Chân 93 | PC18 — GPIO / Peripheral C |
| Chân 94 | PC19 — GPIO / Peripheral C |
| Chân 95 | PC20 — GPIO / Peripheral C |
| Chân 96 | PC21 — GPIO / Peripheral C |
| Chân 97 | PC22 — GPIO / Peripheral C |
| Chân 98 | PC23 — GPIO / Peripheral C |
| Chân 99 | PC24 — GPIO / Peripheral C |
| Chân 100 | PC25 — GPIO / Peripheral C |
| Chân 101 | PC26 — GPIO / Peripheral C |
| Chân 102 | PC27 — GPIO / Peripheral C |
| Chân 103 | PC28 — GPIO / Peripheral C |
| Chân 104 | PC29 — GPIO / Peripheral C |
| Chân 105 | PC30 — GPIO / Peripheral C |
| Chân 106 | PC31 — GPIO / Peripheral C |
| Chân 107 | PD0 — GPIO / Peripheral D |
| Chân 108 | PD1 — GPIO / Peripheral D |
| Chân 109 | PD2 — GPIO / Peripheral D |
| Chân 110 | PD3 — GPIO / Peripheral D |
| Chân 111 | PD4 — GPIO / Peripheral D |
| Chân 112 | PD5 — GPIO / Peripheral D |
| Chân 113 | PD6 — GPIO / Peripheral D |
| Chân 114 | PD7 — GPIO / Peripheral D |
| Chân 115 | PD8 — GPIO / Peripheral D |
| Chân 116 | PD9 — GPIO / Peripheral D |
| Chân 117 | PD10 — GPIO / Peripheral D |
| Chân 118 | PD11 — GPIO / Peripheral D |
| Chân 119 | PD12 — GPIO / Peripheral D |
| Chân 120 | PD13 — GPIO / Peripheral D |
| Chân 121 | PD14 — GPIO / Peripheral D |
| Chân 122 | PD15 — GPIO / Peripheral D |
| Chân 123 | VDDIO — I/O supply voltage |
| Chân 124 | VSS — Ground |
| Chân 125 | PD16 — GPIO / Peripheral D |
| Chân 126 | PD17 — GPIO / Peripheral D |
| Chân 127 | PD18 — GPIO / Peripheral D |
| Chân 128 | PD19 — GPIO / Peripheral D |
| Chân 129 | PD20 — GPIO / Peripheral D |
| Chân 130 | PD21 — GPIO / Peripheral D |
| Chân 131 | PD22 — GPIO / Peripheral D |
| Chân 132 | PD23 — GPIO / Peripheral D |
| Chân 133 | PD24 — GPIO / Peripheral D |
| Chân 134 | PD25 — GPIO / Peripheral D |
| Chân 135 | PD26 — GPIO / Peripheral D |
| Chân 136 | PD27 — GPIO / Peripheral D |
| Chân 137 | PD28 — GPIO / Peripheral D |
| Chân 138 | PD29 — GPIO / Peripheral D |
| Chân 139 | PD30 — GPIO / Peripheral D |
| Chân 140 | PD31 — GPIO / Peripheral D |
| Chân 141 | NRST — Reset input (active low) |
| Chân 142 | TST — Test mode |
| Chân 143 | VDDBU — Backup supply |
| Chân 144 | VDDIO — I/O supply voltage |
Ứng dụng tiêu biểu
ATSAME70Q21B-AN phù hợp cho 6 Áp dụngs: Industrial Motor Control (FOC), Industrial Ethernet / IIoT Gateway, High-End Audio Processing, Automotive Infotainment HMI, Smart Grid Energy Metering, Surveillance DVR / NVR Edge.
Industrial Motor Control (FOC)
The ATSAME70Q21B-AN is purpose-built for sensorless and sensored Field-Oriented Control of PMSM and BLDC motors. Its Cortex-M7 FPU and DSP extensions accelerate Park/Clarke transforms, while two 2 MSPS 12-bit ADCs simultaneously sample phase currents for closed-loop bandwidth above 20 kHz. Built-in position-sensor timers and the Quadrature Decoder interface read Hall sensors or incremental encoders without inline decoders, simplifying firmware and reducing latency. The 384 KB SRAM accommodates ripple-free FOC state buffers and observer algorithms, while Ethernet/CAN-FD connectivity enables real-time EtherCAT/CANopen integration into industrial servo systems.
Được đề xuất
Industrial Ethernet / IIoT Gateway
The ATSAME70Q21B-AN integrates a 10/100 Ethernet MAC with IEEE 1588 PTP hardware timestamping, ideal for Profinet, EtherCAT slave or Modbus-TCP industrial nodes. Its dual CAN-FD controllers bridge to legacy automotive/fieldbus networks, while the GMAC and XDMAC offload protocol stacks so the Cortex-M7 focuses on application logic. The 2 MB Flash fits full TCP/IP + TLS libraries plus a web management UI, and 384 KB SRAM sustains packet buffers and TLS handshake state. The LQFP-144 footprint provides 5V-tolerant GPIO for direct connection to industrial sensor rails without inline transceivers.
Được đề xuất
High-End Audio Processing
The ATSAME70Q21B-AN's Cortex-M7 DSP engine can run software codecs and effects up to 192 kHz / 24-bit per channel for digital mixer oscillators. Its double-precision FPU preserves audio dynamic range through cascaded biquad filters and FFT-based spectrum analysers without clipping artifacts. The SSC/I2S interfaces connect directly to audio DACs such as the AKM4621EF, while the 2 MB Flash stores multitrack loops and the 384 KB SRAM acts as an effect line ring buffer. The integrated HS USB enables class-compliant UAC2 audio streaming to host PCs at 480 Mbps.
Được đề xuất
Automotive Infotainment HMI
The ATSAME70Q21B-AN drives TFT LCD displays up to XGA resolution via the Image Sensor Interface (ISI) and external memory bus, suiting digital instrument clusters and infotainment HMIs. Its MIPI with multi-layer bus matrix renders instrument-cluster graphics with minimal CPU overhead, while the HS USB supports smartphone projection protocols. The integrated hardware AES and TRNG enable secure over-the-air firmware updates. Designers select ATSAME70Q21B-AAB variants for AEC-Q100 Grade 2 compliance in the same LQFP-144 footprint to bypass PCB rework on automotive-grade SKUs.
Được đề xuất
Smart Grid Energy Metering
The ATSAME70Q21B-AN's dual 2 MSPS ADCs synchronously capture line voltages and currents, while the Cortex-M7 DSP library computes 12-bit/24-bit harmonic analysis up to the 63rd harmonic in real time. The TRNG and hardware AES secure the meter's cryptographic keys for signed billing data, and the integrated GMAC transports DLMS/COSEM or IEC 61850 frames to concentrators. The wide operating temperature range supports outdoor cabinet installations, while 2 MB Flash stores calibration tables and signed firmware images with rollback protection.
Được đề xuất
Surveillance DVR / NVR Edge
The ATSAME70Q21B-AN's Image Sensor Interface streams up to 720p video from parallel CMOS sensors, while the Cortex-M7 runs H.264 baseline encoding in software at CIF/VGA resolutions, suiting edge NVR or single-channel DVR designs. The HS USB enables webcam-class streaming at 480 Mbps, and the SD/eMMC interface stores local recordings. The 384 KB SRAM holds reference frames plus compressed bitstream buffers; security-critical applications benefit from the integrated TRNG and hardware AES for video stream encryption.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAME70Q21B-AN — 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 | ATSAME70Q20B-AN | ATSAME70N20B-AN | ATSAMS70Q21B-AN | ATSAME70Q21A-CNT | ATSAMV71Q21B-CB | R7FA6M5AH3CFC |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Renesas Electronics |
| Package | LQFP-144 (20x20) | LQFP-144 (20x20) - same | LQFP-144 (20x20) - same | LQFP-144 (20x20) - same | LQFP-144 (20x20) - same | LQFP-144 (20x20) - same | LQFP-144 - same |
| 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 (Rev A) | ARM Cortex-M7 @ 300 MHz | ARM Cortex-M33 @ 300 MHz |
| Flash | 2 MB | 2 MB | 1 MB | 2 MB | 2 MB (Rev A) | 2 MB | 2 MB |
| SRAM | 384 KB | 128 KB | 384 KB | 384 KB | 384 KB | 384 KB | 640 KB |
| HS USB PHY | Yes (on-chip) | Yes | Yes | Yes | Yes | Yes | Yes (on-chip) |
| Ethernet MAC | GMAC (10/100) with 1588 | GMAC | GMAC | GMAC | GMAC | GMAC | GMAC |
| Hardware Security | AES, TRNG, secure boot | AES, TRNG | AES, TRNG | AES, TRNG, secure boot | AES, TRNG, secure boot | AES, TRNG, secure boot | AES, TRNG, secure boot |
| 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 +105 C | -40 C to +125 C |
Bảo phân biệt quan trọng
- Highest on-chip SRAM in 144-pin SAM E70 family at this price point (vsATSAME70Q20B-AN)
- Largest integrated Flash (32 MB vs 16 MB for SAM S70 base) (vsATSAMS70Q21B-AN)
- On-chip HS USB PHY eliminates external ULPI transceiver cost (vsR7FA6M5AH3CFC)
- DSP and double-precision FPU accelerate motor-control algorithms (vsR7FA6M5AH3CFC)
Ghi chú thiết kế
Estimated: The ATSAME70Q21B-AN requires two supplies: VDDCORE at 1.2 V (up to ~150 mA in active mode at 300 MHz, plus 1.8 V/3.3 V VDDIO). The reference design recommends a buck converter such as AP63205WU-7 for VDDCORE, plus 100 nF + 4.7 µF X7R ceramic decoupling within 5 mm of every VDDIO/VSS pin pair. The VDDBU backup supply must be present whenever the RTC32K oscillator is used; tie it to VDDIO if RTC is not required.
The 20 x 20 mm LQFP-144 footprint has 0.5 mm pitch and 144 I/O plus multiple power/ground pads - plan a 4-layer PCB with dedicated ground plane. Keep high-speed USB DP/DM traces 90 ohms differential and length-matched within 150 mil. Place the 12 MHz main crystal traces short, symmetric, and guard-traced with ground to minimise clock harmonic radiation into the ADC sampling bandwidth.
Do not attempt to use the ATSAME70Q21A-CNT silicon revision interchangeably with the ATSAME70Q21B-AN 'B' revision in production firmware builds without re-checking errata. Rev B added a fix for USB HS PHY errata and revised power-on reset thresholds. Also, avoid using the backup domain VDDBU when the RTC is unused - tie it to VDDIO through a ferrite bead and local decoupling to prevent leakage and brown-out glitches.
Estimated: At 300 MHz active mode, the ATSAME70Q21B-AN core power is approximately 1.4 W. With a 4-layer PCB and minimum copper pour, theta_JA is ~35 C/W, yielding a 49 C junction temperature rise above ambient. At an industrial-grade +85 C ambient this leaves only 15 C margin to the +105 C operating limit, so route substantial GND copper pours and thermal vias under the exposed die pad pattern to maintain derating headroom.
Thông tin tuân thủ
ROHS3 compliant per MicrochipUSA stock data. AEC-Q100 not applicable - for automotive use select -AAB suffix parts. REACH, halogen-free status not in provided data.