ATSAMS70Q20A-AN - 300MHz Cortex-M7 MCU, 1MB Flash | Microchip
MPN: ATSAMS70Q20A-AN ✓ פעילATSAMS70Q20A-AN סקירה
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.
חלופות תחליף ישיר עבור ATSAMS70Q20A-AN — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם ATSAMS70Q20A-AN (אותו גורם צורה וטביעת רגל) — שונים ב ADC, Package, Ethernet, Operating Temperature, Core.
ATSAME70Q20A-AN
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
ATSAMS70Q20A-ANT
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
ATSAME70Q20A-ANT
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
ATSAME70Q21B-AN
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←ATSAME70Q21A-CNT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←ATSAME70N20A-AN
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←ATSAMS70Q20A-AN דירוגים מרביים ומאפיינים חשמליים
| Core | ARM Cortex-M7 with FPU (single + double precision) |
| תדר שעון מקסימלי | 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 |
| מארז | 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 |
| טמפרטורת פעולה | -40C to +105C |
| סטטוס RoHS | Compliant |
| CoreMark Score | 1500 |
תצורת פינים של ATSAMS70Q20A-AN
| פין 1 | VDDIO — I/O supply voltage (3.3 V nominal) |
| פין 2 | PA0 — GPIO / AFEC AD0 / PWM0 |
| פין 3 | PA1 — GPIO / AFEC AD1 / PWM1 |
| פין 4 | PA2 — GPIO / AFEC AD2 |
| פין 5 | PA3 — GPIO / AFEC AD3 |
| פין 6 | PA4 — GPIO / AFEC AD4 |
| פין 7 | PA5 — GPIO / AFEC AD5 |
| פין 8 | GND — Common ground |
| פין 9 | PA6 — GPIO / AFEC AD6 |
| פין 10 | PA7 — GPIO / AFEC AD7 |
| פין 11 | PA8 — GPIO / PWM0 |
| פין 12 | PA9 — GPIO / URXD0 |
| פין 13 | PA10 — GPIO / UTXD0 |
| פין 14 | PA11 — GPIO / UDP (USB HS) |
| פין 15 | PA12 — GPIO / UDM (USB HS) |
| פין 16 | PA13 — GPIO / TWD (I2C0) |
| פין 17 | PA14 — GPIO / TWCK (I2C0) |
| פין 18 | VDDCORE — Core supply (1.2 V) |
| פין 19 | GND — Common ground |
| פין 20 | XIN — 12 MHz crystal input |
| פין 21 | XOUT — 12 MHz crystal output |
| פין 22 | NRST — Reset (active low) |
| פין 23 | TMS — JTAG test mode select |
| פין 24 | TCK — JTAG test clock |
| פין 25 | TDO — JTAG test data out |
| פין 26 | TDI — JTAG test data in |
| פין 27 | SWDIO — Serial wire debug I/O |
| פין 28 | SWCLK — Serial wire clock |
| פין 29 | PB0 — GPIO / EBI D0 |
| פין 30 | PB1 — GPIO / EBI D1 |
| פין 31 | PB2 — GPIO / EBI D2 |
| פין 32 | PB3 — GPIO / EBI D3 |
| פין 33 | PB4 — GPIO / EBI D4 |
| פין 34 | PB5 — GPIO / EBI D5 |
| פין 35 | PB6 — GPIO / EBI D6 |
| פין 36 | PB7 — GPIO / EBI D7 |
| פין 37 | PB8 — GPIO / EBI D8 |
| פין 38 | PB9 — GPIO / EBI D9 |
| פין 39 | PB10 — GPIO / EBI D10 |
| פין 40 | PB11 — GPIO / EBI D11 |
| פין 41 | PB12 — GPIO / EBI D12 |
| פין 42 | PB13 — GPIO / EBI D13 |
| פין 43 | PB14 — GPIO / EBI D14 |
| פין 44 | PB15 — GPIO / EBI D15 |
| פין 45 | VDDIO — I/O supply voltage |
| פין 46 | GND — Common ground |
| פין 47 | PC0 — GPIO / EBI A0 / NCS0 |
| פין 48 | PC1 — GPIO / EBI A1 / NCS1 |
| פין 49 | PC2 — GPIO / EBI A2 / NCS2 |
| פין 50 | PC3 — GPIO / EBI A3 / NCS3 |
| פין 51 | PC4 — GPIO / EBI A4 |
| פין 52 | PC5 — GPIO / EBI A5 |
| פין 53 | PC6 — GPIO / EBI A6 |
| פין 54 | PC7 — GPIO / EBI A7 |
| פין 55 | PC8 — GPIO / EBI NRD |
| פין 56 | PC9 — GPIO / EBI NWE |
| פין 57 | PC10 — GPIO / EBI NCS0 |
| פין 58 | PC11 — GPIO / EBI NCS1 |
| פין 59 | PC12 — GPIO / EBI NCS2 |
| פין 60 | PC13 — GPIO / EBI NCS3 |
| פין 61 | PC14 — GPIO / EBI NCS4 |
| פין 62 | PC15 — GPIO / EBI NCS5 |
| פין 63 | VDDIO — I/O supply voltage |
| פין 64 | GND — Common ground |
| פין 65 | PD0 — GPIO / EBI D16 |
| פין 66 | PD1 — GPIO / EBI D17 |
| פין 67 | PD2 — GPIO / EBI D18 |
| פין 68 | PD3 — GPIO / EBI D19 |
| פין 69 | PD4 — GPIO / EBI D20 |
| פין 70 | PD5 — GPIO / EBI D21 |
| פין 71 | PD6 — GPIO / EBI D22 |
| פין 72 | PD7 — GPIO / EBI D23 |
| פין 73 | PD8 — GPIO / EBI D24 |
| פין 74 | PD9 — GPIO / EBI D25 |
| פין 75 | PD10 — GPIO / EBI D26 |
| פין 76 | PD11 — GPIO / EBI D27 |
| פין 77 | PD12 — GPIO / EBI D28 |
| פין 78 | PD13 — GPIO / EBI D29 |
| פין 79 | PD14 — GPIO / EBI D30 |
| פין 80 | PD15 — GPIO / EBI D31 |
| פין 81 | VDDCORE — Core supply (1.2 V) |
| פין 82 | GND — Common ground |
| פין 83 | PE0 — GPIO / PWM0 |
| פין 84 | PE1 — GPIO / PWM1 |
| פין 85 | PE2 — GPIO / PWM2 |
| פין 86 | PE3 — GPIO / PWM3 |
| פין 87 | PE4 — GPIO / CANRX0 |
| פין 88 | PE5 — GPIO / CANTX0 |
| פין 89 | PE6 — GPIO / CANRX1 |
| פין 90 | PE7 — GPIO / CANTX1 |
| פין 91 | PE8 — GPIO / I2S0 MCK |
| פין 92 | PE9 — GPIO / I2S0 CK |
| פין 93 | PE10 — GPIO / I2S0 WS |
| פין 94 | PE11 — GPIO / I2S0 DIN |
| פין 95 | PE12 — GPIO / I2S0 DOUT |
| פין 96 | VDDIO — I/O supply voltage |
| פין 97 | GND — Common ground |
| פין 98 | PF0 — GPIO / I2S1 MCK |
| פין 99 | PF1 — GPIO / I2S1 CK |
| פין 100 | PF2 — GPIO / I2S1 WS |
| פין 101 | PF3 — GPIO / I2S1 DIN |
| פין 102 | PF4 — GPIO / I2S1 DOUT |
| פין 103 | PF5 — GPIO / ISI D0 |
| פין 104 | PF6 — GPIO / ISI D1 |
| פין 105 | PF7 — GPIO / ISI D2 |
| פין 106 | PF8 — GPIO / ISI D3 |
| פין 107 | PF9 — GPIO / ISI D4 |
| פין 108 | PF10 — GPIO / ISI D5 |
| פין 109 | PF11 — GPIO / ISI D6 |
| פין 110 | PF12 — GPIO / ISI D7 |
| פין 111 | PF13 — GPIO / ISI PCLK |
| פין 112 | PF14 — GPIO / ISI VSYNC |
| פין 113 | PF15 — GPIO / ISI HSYNC |
| פין 114 | VDDIO — I/O supply voltage |
| פין 115 | GND — Common ground |
| פין 116 | PG0 — GPIO / LCD DAT0 |
| פין 117 | PG1 — GPIO / LCD DAT1 |
| פין 118 | PG2 — GPIO / LCD DAT2 |
| פין 119 | PG3 — GPIO / LCD DAT3 |
| פין 120 | PG4 — GPIO / LCD DAT4 |
| פין 121 | PG5 — GPIO / LCD DAT5 |
| פין 122 | PG6 — GPIO / LCD DAT6 |
| פין 123 | PG7 — GPIO / LCD DAT7 |
| פין 124 | PG8 — GPIO / LCD DAT8 |
| פין 125 | PG9 — GPIO / LCD DAT9 |
| פין 126 | PG10 — GPIO / LCD DAT10 |
| פין 127 | PG11 — GPIO / LCD DAT11 |
| פין 128 | PG12 — GPIO / LCD DAT12 |
| פין 129 | PG13 — GPIO / LCD DAT13 |
| פין 130 | PG14 — GPIO / LCD DAT14 |
| פין 131 | PG15 — GPIO / LCD DAT15 |
| פין 132 | VDDCORE — Core supply (1.2 V) |
| פין 133 | GND — Common ground |
| פין 134 | PH0 — GPIO / ETH GTXCK |
| פין 135 | PH1 — GPIO / ETH GTXEN |
| פין 136 | PH2 — GPIO / ETH GTX0 |
| פין 137 | PH3 — GPIO / ETH GTX1 |
| פין 138 | PH4 — GPIO / ETH GRXDV |
| פין 139 | PH5 — GPIO / ETH GRX0 |
| פין 140 | PH6 — GPIO / ETH GRX1 |
| פין 141 | PH7 — GPIO / ETH GRXER |
| פין 142 | PH8 — GPIO / ETH MDC |
| פין 143 | PH9 — GPIO / ETH MDIO |
| פין 144 | JTAGSEL — JTAG selection (tie to VDDCORE for JTAG, GND for SWD) |
יישומים טיפוסיים
ATSAMS70Q20A-AN מתאים עבור 6 יישוםs: 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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור ATSAMS70Q20A-AN — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | 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 |
מבדילים עיקריים
- Same-family Ethernet-focused drop-in alternative (לעומתATSAME70Q20A-AN)
- Higher Flash option at same package (לעומתATSAME70Q21B-AN)
- Same-die tape-and-reel variant (לעומתATSAMS70Q20A-ANT)
הערות תכנון
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.
מידע על תאימות
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'.
