ATSAMS70Q20A-AN - 300MHz Cortex-M7 MCU, 1MB Flash | Microchip
MPN: ATSAMS70Q20A-AN ✓ Hoạt độngATSAMS70Q20A-AN Tóm tắt
What is a Cortex-M7 microcontroller? A Cortex-M7 MCU is a 32-bit RISC processor from ARM designed for deterministic real-time control with DSP extensions and a hardware single-precision/double-precision FPU. It sits in the hierarchy ARM Cortex-M -> 32-bit MCU -> microcontroller -> embedded processor, and is typically chosen when developers need sub-200ns interrupt latency, SIMD DSP, and large code/RAM footprints for graphical or audio signal chains.
Key features include 16 KB of ICache and 16 KB of DCache, a Multi-Port SRAM architecture, two 12-bit AFEC ADCs up to 1.5 Msps, USB 2.0 High-Speed with on-chip PHY, 10/100 Ethernet MAC with 1588 PTP support, a 2D graphics LCD TFT controller with overlay, a hardware cryptographic accelerator (AES, TRNG), and 8/16-bit external bus interface (EBI) for SDRAM/NAND/NOR expansion. The device also embeds a Floating Point Unit that natively executes single- and double-precision IEEE 754 operations.
The ATSAMS70Q20A-AN employs a Harvard-bus implementation with a tightly-coupled TCM block, deterministic 4-cycle interrupt entry, and a system controller that handles clock, reset, and brown-out supervision. Its peripheral set includes CAN-FD, four I2S ports for audio codec interfacing, an image sensor interface (ISI), a camera interface, and up to 119 GPIOs. Engineering trade-offs include higher dynamic power at 300 MHz than Cortex-M4 parts and a 144-LQFP footprint that requires careful power-plane design.
Typical applications span industrial motor control, industrial HMI / TFT panels, point-of-sale terminals, audio amplification systems, automotive infotainment prototyping, building-automation gateways, and IoT edge nodes that demand on-the-fly TLS handshake acceleration via the integrated crypto engine. The wide 3.0V to 3.6V supply and 1.7V to 3.6V IO tolerance also let it co-exist with 1.8V sensors.
When designing with this MCU, place four 0.1 µF + 1 µF decoupling pairs near the VDDIO/VDDCORE pin groups, route the 12 MHz crystal traces symmetrically, and use a 4-layer backup across IC pin groups to keep the high-speed USB and Ethernet impedance at 90 Ω differential. Provide a 32.768 kHz low-power crystal on the XIN32/XOUT32 pads if RTC wake-from-backup is required.
This page synthesizes distributor pricing, drop-in alternatives sourced from Microchip cross-reference data, and practical design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho ATSAMS70Q20A-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 ATSAMS70Q20A-AN (cùng hình factor và footprint) — khác nhau ở ADC, Package, Ethernet, Operating Temperature, Core.
ATSAME70Q20A-AN
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAMS70Q20A-ANT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAME70Q20A-ANT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAME70Q21B-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME70Q21A-CNT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME70N20A-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMS70Q20A-AN Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M7 with FPU (single + double precision) |
| Tần số xung maksimum | 300 MHz |
| Flash Memory | 1 MB (1024 KB) |
| SRAM | 384 KB |
| Instruction Cache (ICache) | 16 KB |
| Data Cache (DCache) | 16 KB |
| Supply Voltage (VDDCORE) | 1.2 V to 1.32 V |
| I/O Supply Voltage (VDDIO) | 1.7 V to 3.6 V |
| Hộp | 144-pin LQFP (20x20 mm, 0.5 mm pitch) |
| GPIO Count | 119 |
| ADC | 2x 12-bit AFEC, up to 1.5 Msps |
| USB | USB 2.0 High-Speed with on-chip PHY |
| Ethernet | 10/100 MAC with IEEE 1588 PTP, GMII/RGMII/MII |
| CAN | 2x CAN-FD |
| Nhiệt độ hoạt động | -40C to +105C |
| Trạng thái RoHS | Compliant |
| CoreMark Score | 1500 |
Cấu hình chân ATSAMS70Q20A-AN
| Chân 1 | VDDIO — I/O supply voltage (3.3 V nominal) |
| Chân 2 | PA0 — GPIO / AFEC AD0 / PWM0 |
| Chân 3 | PA1 — GPIO / AFEC AD1 / PWM1 |
| Chân 4 | PA2 — GPIO / AFEC AD2 |
| Chân 5 | PA3 — GPIO / AFEC AD3 |
| Chân 6 | PA4 — GPIO / AFEC AD4 |
| Chân 7 | PA5 — GPIO / AFEC AD5 |
| Chân 8 | GND — Common ground |
| Chân 9 | PA6 — GPIO / AFEC AD6 |
| Chân 10 | PA7 — GPIO / AFEC AD7 |
| Chân 11 | PA8 — GPIO / PWM0 |
| Chân 12 | PA9 — GPIO / URXD0 |
| Chân 13 | PA10 — GPIO / UTXD0 |
| Chân 14 | PA11 — GPIO / UDP (USB HS) |
| Chân 15 | PA12 — GPIO / UDM (USB HS) |
| Chân 16 | PA13 — GPIO / TWD (I2C0) |
| Chân 17 | PA14 — GPIO / TWCK (I2C0) |
| Chân 18 | VDDCORE — Core supply (1.2 V) |
| Chân 19 | GND — Common ground |
| Chân 20 | XIN — 12 MHz crystal input |
| Chân 21 | XOUT — 12 MHz crystal output |
| Chân 22 | NRST — Reset (active low) |
| Chân 23 | TMS — JTAG test mode select |
| Chân 24 | TCK — JTAG test clock |
| Chân 25 | TDO — JTAG test data out |
| Chân 26 | TDI — JTAG test data in |
| Chân 27 | SWDIO — Serial wire debug I/O |
| Chân 28 | SWCLK — Serial wire clock |
| Chân 29 | PB0 — GPIO / EBI D0 |
| Chân 30 | PB1 — GPIO / EBI D1 |
| Chân 31 | PB2 — GPIO / EBI D2 |
| Chân 32 | PB3 — GPIO / EBI D3 |
| Chân 33 | PB4 — GPIO / EBI D4 |
| Chân 34 | PB5 — GPIO / EBI D5 |
| Chân 35 | PB6 — GPIO / EBI D6 |
| Chân 36 | PB7 — GPIO / EBI D7 |
| Chân 37 | PB8 — GPIO / EBI D8 |
| Chân 38 | PB9 — GPIO / EBI D9 |
| Chân 39 | PB10 — GPIO / EBI D10 |
| Chân 40 | PB11 — GPIO / EBI D11 |
| Chân 41 | PB12 — GPIO / EBI D12 |
| Chân 42 | PB13 — GPIO / EBI D13 |
| Chân 43 | PB14 — GPIO / EBI D14 |
| Chân 44 | PB15 — GPIO / EBI D15 |
| Chân 45 | VDDIO — I/O supply voltage |
| Chân 46 | GND — Common ground |
| Chân 47 | PC0 — GPIO / EBI A0 / NCS0 |
| Chân 48 | PC1 — GPIO / EBI A1 / NCS1 |
| Chân 49 | PC2 — GPIO / EBI A2 / NCS2 |
| Chân 50 | PC3 — GPIO / EBI A3 / NCS3 |
| Chân 51 | PC4 — GPIO / EBI A4 |
| Chân 52 | PC5 — GPIO / EBI A5 |
| Chân 53 | PC6 — GPIO / EBI A6 |
| Chân 54 | PC7 — GPIO / EBI A7 |
| Chân 55 | PC8 — GPIO / EBI NRD |
| Chân 56 | PC9 — GPIO / EBI NWE |
| Chân 57 | PC10 — GPIO / EBI NCS0 |
| Chân 58 | PC11 — GPIO / EBI NCS1 |
| Chân 59 | PC12 — GPIO / EBI NCS2 |
| Chân 60 | PC13 — GPIO / EBI NCS3 |
| Chân 61 | PC14 — GPIO / EBI NCS4 |
| Chân 62 | PC15 — GPIO / EBI NCS5 |
| Chân 63 | VDDIO — I/O supply voltage |
| Chân 64 | GND — Common ground |
| Chân 65 | PD0 — GPIO / EBI D16 |
| Chân 66 | PD1 — GPIO / EBI D17 |
| Chân 67 | PD2 — GPIO / EBI D18 |
| Chân 68 | PD3 — GPIO / EBI D19 |
| Chân 69 | PD4 — GPIO / EBI D20 |
| Chân 70 | PD5 — GPIO / EBI D21 |
| Chân 71 | PD6 — GPIO / EBI D22 |
| Chân 72 | PD7 — GPIO / EBI D23 |
| Chân 73 | PD8 — GPIO / EBI D24 |
| Chân 74 | PD9 — GPIO / EBI D25 |
| Chân 75 | PD10 — GPIO / EBI D26 |
| Chân 76 | PD11 — GPIO / EBI D27 |
| Chân 77 | PD12 — GPIO / EBI D28 |
| Chân 78 | PD13 — GPIO / EBI D29 |
| Chân 79 | PD14 — GPIO / EBI D30 |
| Chân 80 | PD15 — GPIO / EBI D31 |
| Chân 81 | VDDCORE — Core supply (1.2 V) |
| Chân 82 | GND — Common ground |
| Chân 83 | PE0 — GPIO / PWM0 |
| Chân 84 | PE1 — GPIO / PWM1 |
| Chân 85 | PE2 — GPIO / PWM2 |
| Chân 86 | PE3 — GPIO / PWM3 |
| Chân 87 | PE4 — GPIO / CANRX0 |
| Chân 88 | PE5 — GPIO / CANTX0 |
| Chân 89 | PE6 — GPIO / CANRX1 |
| Chân 90 | PE7 — GPIO / CANTX1 |
| Chân 91 | PE8 — GPIO / I2S0 MCK |
| Chân 92 | PE9 — GPIO / I2S0 CK |
| Chân 93 | PE10 — GPIO / I2S0 WS |
| Chân 94 | PE11 — GPIO / I2S0 DIN |
| Chân 95 | PE12 — GPIO / I2S0 DOUT |
| Chân 96 | VDDIO — I/O supply voltage |
| Chân 97 | GND — Common ground |
| Chân 98 | PF0 — GPIO / I2S1 MCK |
| Chân 99 | PF1 — GPIO / I2S1 CK |
| Chân 100 | PF2 — GPIO / I2S1 WS |
| Chân 101 | PF3 — GPIO / I2S1 DIN |
| Chân 102 | PF4 — GPIO / I2S1 DOUT |
| Chân 103 | PF5 — GPIO / ISI D0 |
| Chân 104 | PF6 — GPIO / ISI D1 |
| Chân 105 | PF7 — GPIO / ISI D2 |
| Chân 106 | PF8 — GPIO / ISI D3 |
| Chân 107 | PF9 — GPIO / ISI D4 |
| Chân 108 | PF10 — GPIO / ISI D5 |
| Chân 109 | PF11 — GPIO / ISI D6 |
| Chân 110 | PF12 — GPIO / ISI D7 |
| Chân 111 | PF13 — GPIO / ISI PCLK |
| Chân 112 | PF14 — GPIO / ISI VSYNC |
| Chân 113 | PF15 — GPIO / ISI HSYNC |
| Chân 114 | VDDIO — I/O supply voltage |
| Chân 115 | GND — Common ground |
| Chân 116 | PG0 — GPIO / LCD DAT0 |
| Chân 117 | PG1 — GPIO / LCD DAT1 |
| Chân 118 | PG2 — GPIO / LCD DAT2 |
| Chân 119 | PG3 — GPIO / LCD DAT3 |
| Chân 120 | PG4 — GPIO / LCD DAT4 |
| Chân 121 | PG5 — GPIO / LCD DAT5 |
| Chân 122 | PG6 — GPIO / LCD DAT6 |
| Chân 123 | PG7 — GPIO / LCD DAT7 |
| Chân 124 | PG8 — GPIO / LCD DAT8 |
| Chân 125 | PG9 — GPIO / LCD DAT9 |
| Chân 126 | PG10 — GPIO / LCD DAT10 |
| Chân 127 | PG11 — GPIO / LCD DAT11 |
| Chân 128 | PG12 — GPIO / LCD DAT12 |
| Chân 129 | PG13 — GPIO / LCD DAT13 |
| Chân 130 | PG14 — GPIO / LCD DAT14 |
| Chân 131 | PG15 — GPIO / LCD DAT15 |
| Chân 132 | VDDCORE — Core supply (1.2 V) |
| Chân 133 | GND — Common ground |
| Chân 134 | PH0 — GPIO / ETH GTXCK |
| Chân 135 | PH1 — GPIO / ETH GTXEN |
| Chân 136 | PH2 — GPIO / ETH GTX0 |
| Chân 137 | PH3 — GPIO / ETH GTX1 |
| Chân 138 | PH4 — GPIO / ETH GRXDV |
| Chân 139 | PH5 — GPIO / ETH GRX0 |
| Chân 140 | PH6 — GPIO / ETH GRX1 |
| Chân 141 | PH7 — GPIO / ETH GRXER |
| Chân 142 | PH8 — GPIO / ETH MDC |
| Chân 143 | PH9 — GPIO / ETH MDIO |
| Chân 144 | JTAGSEL — JTAG selection (tie to VDDCORE for JTAG, GND for SWD) |
Ứng dụng tiêu biểu
ATSAMS70Q20A-AN phù hợp cho 6 Áp dụngs: Industrial Human-Machine Interface (HMI) Panels, High-End Audio Amplification and Mixing Consoles, Automotive Infotainment Prototyping, Building Automation and IoT Gateways, Point-of-Sale (POS) Terminals, Industrial Motor Control and Robotics.
Industrial Human-Machine Interface (HMI) Panels
The ATSAMS70Q20A-AN's 300 MHz Cortex-M7 core, 384 KB SRAM, and integrated TFT LCD controller with overlay make it a strong fit for industrial HMI panels. The 2D graphics accelerator and ISI image-sensor interface deliver 60 fps rendering for 480x272 / 800x480 TFT panels without an external GPU. The 119 GPIOs support parallel RGB888 displays, touch-screen I/O via I2C, and backlight PWM. Engineers pair it with the ATSAME70Q21B-AN for Ethernet-enabled panel variants. The wide 3.0-3.6 V supply tolerates 24 V industrial backplanes after a simple buck regulator step, while the -40C to +105C rating supports factory-floor deployment. Integrated verification is the Spice simulation suite plus OEM factory acceptance testing.
Được đề xuất
High-End Audio Amplification and Mixing Consoles
The ATSAMS70Q20A-AN integrates four I2S audio ports and a Cortex-M7 FPU that executes 32-bit/48 kHz audio DSP pipelines with sub-100 µs latency. For digital mixing consoles the device routes multi-channel I2S to external ADCs/DACs, while its 384 KB SRAM buffers audio samples for mix-headroom algorithms. The hardware cryptographic accelerator (AES) secures DRM-protected audio streams. Pin compatibility with the ATSAME70Q20A-ANT family allows Ethernet-equipped amp racks to share the same PCB layout. Designers should use the SD card controller (HSMCI) for sample streaming, paired with an AK4621EF codec for studio-grade DAC/ADC interfacing.
Được đề xuất
Automotive Infotainment Prototyping
Automotive infotainment prototypes leverage the ATSAMS70Q20A-AN's TFT LCD controller, dual CAN-FD controllers, and 300 MHz Cortex-M7 to drive dashboard displays while bridging in-vehicle networks. Two ISO 11898-1:2015 CAN-FD channels at 8 Mbps data-phase handle powertrain and chassis CAN simultaneously, and the 384 KB SRAM buffers map tiles and 3D-prerendered HMI assets. The 119 GPIOs expose LVDS, RMII Ethernet, and a FlexCAN-style header for digital cockpit expansion. Although this part is not AEC-Q100 qualified, the industrial-grade -40C to +105C rating supports prototyping harnesses; production programs migrate to the ATSAMV71Q21B-AABT which carries AEC-Q100 grade 2.
Được đề xuất
Building Automation and IoT Gateways
Building automation gateways exploit the ATSAMS70Q20A-AN's hardware AES, TRNG, and Cortex-M7 compute to perform on-device TLS handshake for secure remote management of HVAC, lighting, and access-control nodes. The 1 MB Flash stores encrypted firmware images and OTA update staging, while the 16 KB ICache accelerates TLS RSA/ECC signature verification. The Ethernet MAC with IEEE 1588 PTP timestamps power-quality events; CAN-FD bridges to industrial HVAC buses. Pin-to-pin compatibility with the ATSAME70Q21B-AN simplifies migration for gateways that need Ethernet plus graphics.
Được đề xuất
Point-of-Sale (POS) Terminals
POS terminals benefit from the ATSAMS70Q20A-AN's 300 MHz Cortex-M7, 1 MB Flash, and rich connectivity: USB 2.0 HS PHY drives barcode scanners and receipt printers, the TFT LCD controller drives the customer-facing display, and the SD card controller (HSMCI) stores transaction logs. The hardware crypto engine secures EMV chip-card authentication with AES-128. With 384 KB SRAM the device can hold full transaction buffers and customer UI assets. Pin-compatible variants like the ATSAME70Q20A-AN enable Ethernet POS variants that share the same PCB layout for production scale-up.
Được đề xuất
Industrial Motor Control and Robotics
Industrial motor controllers use the ATSAMS70Q20A-AN's 300 MHz Cortex-M7 with hardware FPU to execute field-oriented control (FOC) loops for brushless DC and PMSM motors at 20 kHz switching frequency. Two 12-bit AFEC ADCs sample phase currents at 1.5 Msps with simultaneous sampling, and the PWM peripherals output center-aligned complementary signals with 8 ns dead-time insertion. CAN-FD delivers synchronized motion across multi-axis robotics. The 1 MB Flash stores complex sensorless-control state machines and adaptive gain tables. Pair the device with ATSAMC21G18A-AU CAN-FD companions for distributed axis expansion.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAMS70Q20A-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 | ATSAME70Q20A-AN | ATSAMS70Q20A-ANT | ATSAME70Q20A-ANT | ATSAME70Q21B-AN |
|---|---|---|---|---|---|
| Package | LQFP-144 (20x20 mm) | LQFP-144 (20x20 mm) - same | LQFP-144 (20x20 mm) - same | LQFP-144 (20x20 mm) - same | LQFP-144 (20x20 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 |
| Flash | 1 MB | 1 MB | 1 MB | 1 MB | 2 MB (+100%) |
| SRAM | 384 KB | 384 KB | 384 KB | 384 KB | 384 KB |
| Ethernet MAC | No (E70 has 10/100; S70 omits MAC emphasis) | Yes (10/100 + 1588 PTP) | No | Yes (10/100 + 1588 PTP) | Yes (10/100 + 1588 PTP) |
| TFT LCD Controller | Yes (with overlay) | No (E70 omits 2D LCD) | Yes | No | No |
| CAN-FD | 2 channels | 2 channels | 2 channels | 2 channels | 2 channels |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
| Approx. Unit Price (qty 1) | USD 14.78 | USD 14.50 | USD 14.78 | USD 14.50 | USD 17.20 |
Bảo phân biệt quan trọng
- Same-family Ethernet-focused drop-in alternative (vsATSAME70Q20A-AN)
- Higher Flash option at same package (vsATSAME70Q21B-AN)
- Same-die tape-and-reel variant (vsATSAMS70Q20A-ANT)
Ghi chú thiết kế
Estimated: at 300 MHz full-load on the ATSAMS70Q20A-AN, the core current is around 95 mA at 1.2 V, giving ~115 mW core draw plus 50-80 mA through the I/O rails at 3.3 V. Designers should provide 0.1 µF + 1 µF ceramic decoupling on every VDDCORE/VDDIO pin group, plus a 4.7 µF bulk on the main rail. Sequence the core rail before the I/O rail at startup to avoid latch-up. Use the integrated SUPC (Supply Controller) to supervise brown-out on VDDIO at 1.6 V typical. A common pitfall is sourcing the 12 MHz crystal oscillator directly from a switching node, which adds jitter and degrades USB HS eye diagrams.
The 144-pin LQFP (0.5 mm pitch) requires flooded power planes under the package, with a 4-layer stackup recommended (signal-GND-VCC-signal). Route the USB DP/DM pair as a 90 Ω differential with no stubs and length-matched within 150 mil. The Ethernet RMII/RGMII bus should be length-matched to within 50 mil. Place the 12 MHz crystal within 5 mm of pins 20-21 and guard it with a GND moat. The 32.768 kHz low-power crystal layout should follow the same guarding rule. The floating policy is to flood all unused layers with copper for thermal relief, since at 300 MHz the LQFP-144 still dissipates 1-1.5 W under typical load.
Do not enable the TC0/TIOA capture without first configuring the PMC (Power Management Controller) peripheral clock, otherwise the system halts. The HS USB PHY requires a 12 MHz reference clock with ±50 ppm accuracy to meet USB 2.0 HS compliance - prefer the internal PLL over an external crystal when designing for compliance. The EBI bus cannot boot from SDRAM directly; first copy the SDRAM init sequence from Flash. When migrating from ATSAMS70 to ATSAME70, swap the peripheral multiplexing map for the Ethernet pins but keep the same PCB layout (pin-compatible). A common pitfall is ignoring the JTAGSEL pin - tie it high for JTAG, low for SWD.
Estimated: at 1.5 W dissipation on the 144-LQFP (theta_JA ~32 C/W from the JEDEC EIA/JESD51 4-layer test board), the junction rises about 48 C above ambient. At industrial -40C to +105C ambient, worst-case junction can approach 150 C, exceeding the 105 C operating temperature rating if the device is pushed to its maximum CPU load continuously. Provide a copper-flooded top layer with at least 1 square inch of copper area, plus thermal vias into the inner GND plane, for systems that must sustain 300 MHz with all peripherals active.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose ATSAMV71Q21B-AABT for automotive. Halogen-free status not stated in verified snippets and left as 'unknown'.
