ATSAME70Q20B-AN - 300MHz Cortex-M7 MCU, 1MB Flash | Microchip
N.º da peça: ATSAME70Q20B-AN ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $16.58 | $16,58 |
| 10 | $15.21 | $152,10 |
| 100 | $13.66 | $1.366,00 |
| 500 | $12.18 | $6.090,00 |
| 1.000 | $10.85 | $10.850,00 |
ATSAME70Q20B-AN Visão geral
A microcontroller (MCU) is a single-chip computer containing a processor core, memory, and programmable peripherals. The Cortex-M7 core is ARM's highest-performance M-class core with a 6-stage superscalar pipeline, double-precision FPU, and tightly-coupled memory (TCM) for deterministic interrupt response. The SAM E70 family sits above Cortex-M4 parts in ARM's portfolio, bridging the gap between MCU and MPU for compute-intensive embedded designs.
Key differentiating specifications include a 300 MHz core clock, 1 MB on-chip Flash, 384 KB SRAM (plus 16 KB ICache and 16 KB DCache), and an extensive peripheral set: HS USB with on-chip PHY, dual CAN-FD, Ethernet MAC with 1588 PTP, and a high-speed 12-bit 2 MSPS ADC. The 144-LQFP package exposes up to 114 GPIO, supporting parallel bus interfaces for external memory and displays.
Architecturally, the device combines the Cortex-M7 core with 4 KB each of ICache and DCache for branchy C-code workloads, plus 384 KB of system SRAM. The advanced peripherals include a graphics LCD controller (up to XGA resolution), a camera interface, and a 32-bit external bus interface (EBI) for SRAM/SDRAM/NOR/NAND expansion. A single 1.2 V internal LDO and 3.3 V I/O ring optimize power dissipation across the 300 MHz operating range.
Typical applications include industrial motor drives, building automation controllers, IoT edge gateways with Ethernet, graphical HMI panels, automotive telematics, and medical instrumentation. The combination of Cortex-M7 DSP/FPU performance with Ethernet, CAN-FD, and USB makes it well suited for connected industrial nodes requiring deterministic communication.
When designing with the ATSAME70Q20B-AN, ensure the 3.3 V analog supply (VDDANA) is decoupled with a low-ESR 100 nF plus 10 uF bulk capacitor, and that the 1.2 V core is supplied by the internal LDO with adequate bulk capacitance (4.7 uF + 100 nF) on VDDOUT. The high-speed ADC requires a clean AREF reference and a low-impedance ground return.
This page synthesizes real-time distributor pricing, drop-in package-compatible alternatives (same LQFP-144 footprint), and practical design notes that are not found in the manufacturer datasheet alone.
Alternativas drop-in para ATSAME70Q20B-AN — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATSAME70Q20B-AN (mesmo formato e footprint) — diferindo em ADC, Package, Ethernet, SRAM, USB.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAME70Q20A-AN
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ATSAME70Q21B-AN
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$17.4 / unidade
Ver ficha técnica →ATSAME70Q19A-AN
✅ Drop-In✓ Em estoque
$10.55 / unidade
Ver ficha técnica →ATSAME70Q20B-CN
✅ Drop-In✓ Em estoque
$18.2 / unidade
Ver ficha técnica →ATSAME70N21B-CN
✅ Drop-In✓ Em estoque
$12.1 / unidade
Ver ficha técnica →ATSAME70N20A-CNT
✅ Drop-In✓ Em estoque
$8.85 / unidade
Ver ficha técnica →ATSAME70Q20B-AN Classificações máximas e características elétricas
| Core | ARM Cortex-M7 with FPU |
| Frequência máxima de clock | 300 MHz |
| Program Memory Size | 1 MB (1M x 8) Flash |
| RAM Size | 384 KB SRAM |
| Instruction Cache (ICache) | 16 KB |
| Data Cache (DCache) | 16 KB |
| Encapsulamento | 144-LQFP (20x20 mm) |
| Contagem de pinos | 144 |
| Tipo de montagem | Surface Mount |
| Supply Voltage (VDDIO) | 3.0 V to 3.6 V |
| Supply Voltage (VDDANA) | 3.0 V to 3.6 V |
| Temperatura de operação | -40C to +105C (industrial) |
| Largura do barramento de dados | 32-bit |
| ADC | 12-bit, up to 24 channels, 2 MSPS |
| Communication Interfaces | HS USB (Device/Host), 2x CAN-FD, Ethernet MAC (10/100 with 1588 PTP), UART, SPI, TWI (I2C), SSC, I2S |
| External Bus Interface | EBI for SRAM/SDRAM/NOR/NAND - 32-bit |
| Graphics LCD Controller | Yes (up to XGA) |
| Camera Interface | Yes (12-bit) |
| Status RoHS | Compliant |
| Nível MSL | 3 (168 hours) |
Configuração de pinos do ATSAME70Q20B-AN
| Pino 1 | PD0 — GPIO / EBI data |
| Pino 2 | PD1 — GPIO / EBI data |
| Pino 3 | PD2 — GPIO / EBI data |
| Pino 4 | PD3 — GPIO / EBI data |
| Pino 5 | VDDIO — I/O supply 3.3V |
| Pino 6 | VSS — Ground |
| Pino 7 | PD4 — GPIO / EBI data |
| Pino 8 | PD5 — GPIO / EBI data |
| Pino 9 | PD6 — GPIO / EBI data |
| Pino 10 | PD7 — GPIO / EBI data |
| Pino 11 | PD8 — GPIO / EBI NANDALE |
| Pino 12 | PD9 — GPIO / EBI NANDCLE |
| Pino 13 | PD10 — GPIO / EBI NCS |
| Pino 14 | PD11 — GPIO / EBI NRD |
| Pino 15 | PD12 — GPIO / EBI NWE |
| Pino 16 | PD13 — GPIO / EBI NBS0 |
| Pino 17 | PD14 — GPIO / EBI NBS1 |
| Pino 18 | PD15 — GPIO / EBI A0 |
| Pino 19 | VDDOUT — Core LDO output (1.2V) - decouple with 4.7uF |
| Pino 20 | VSS — Ground |
| Pino 21 | PD16 — GPIO / EBI A1 |
| Pino 22 | PD17 — GPIO / EBI A2 |
| Pino 23 | PD18 — GPIO / EBI A3 |
| Pino 24 | PD19 — GPIO / EBI A4 |
| Pino 25 | PD20 — GPIO / EBI A5 |
| Pino 26 | PD21 — GPIO / EBI A6 |
| Pino 27 | PD22 — GPIO / EBI A7 |
| Pino 28 | PD23 — GPIO / EBI A8 |
| Pino 29 | PD24 — GPIO / EBI A9 |
| Pino 30 | PD25 — GPIO / EBI A10 |
| Pino 31 | PD26 — GPIO / EBI A11 |
| Pino 32 | PD27 — GPIO / EBI A12 |
| Pino 33 | PD28 — GPIO / EBI A13 |
| Pino 34 | PD29 — GPIO / EBI A14 |
| Pino 35 | PD30 — GPIO / EBI A15 / IRQ |
| Pino 36 | PD31 — GPIO / EBI A16 / FIQ |
| Pino 37 | VDDIO — I/O supply 3.3V |
| Pino 38 | VSS — Ground |
| Pino 39 | PA0 — GPIO / PWMH0 / TIOA0 |
| Pino 40 | PA1 — GPIO / PWMH1 / TIOB0 |
| Pino 41 | PA2 — GPIO / PWMH2 / TIOA1 |
| Pino 42 | PA3 — GPIO / PWMH3 / TIOB1 |
| Pino 43 | PA4 — GPIO / PWMH4 / TIOA2 |
| Pino 44 | PA5 — GPIO / PWMH5 / TIOB2 |
| Pino 45 | PA6 — GPIO / PWMH6 / TIOA3 |
| Pino 46 | PA7 — GPIO / PWMH7 / TIOB3 |
| Pino 47 | PA8 — GPIO / PWML0 / TIOA4 |
| Pino 48 | PA9 — GPIO / PWML1 / TIOB4 |
| Pino 49 | PA10 — GPIO / PWML2 / TIOA5 |
| Pino 50 | PA11 — GPIO / PWML3 / TIOB5 |
| Pino 51 | PA12 — GPIO / PWML4 / TIOA6 |
| Pino 52 | PA13 — GPIO / PWML5 / TIOB6 |
| Pino 53 | PA14 — GPIO / PWML6 / TIOA7 |
| Pino 54 | PA15 — GPIO / PWML7 / TIOB7 |
| Pino 55 | PA16 — GPIO / CANRX0 |
| Pino 56 | PA17 — GPIO / CANTX0 |
| Pino 57 | PA18 — GPIO / CANRX1 |
| Pino 58 | PA19 — GPIO / CANTX1 |
| Pino 59 | PA20 — GPIO / URXD2 |
| Pino 60 | PA21 — GPIO / UTXD2 |
| Pino 61 | VDDIO — I/O supply 3.3V |
| Pino 62 | VSS — Ground |
| Pino 63 | PB0 — GPIO / AFEC0 |
| Pino 64 | PB1 — GPIO / AFEC1 |
| Pino 65 | PB2 — GPIO / AFEC2 / AD0 |
| Pino 66 | PB3 — GPIO / AFEC3 / AD1 |
| Pino 67 | PB4 — GPIO / AFEC4 / AD2 |
| Pino 68 | PB5 — GPIO / AFEC5 / AD3 |
| Pino 69 | PB6 — GPIO / AFEC6 / AD4 |
| Pino 70 | PB7 — GPIO / AFEC7 / AD5 |
| Pino 71 | PB8 — GPIO / AFEC8 / AD6 |
| Pino 72 | PB9 — GPIO / AFEC9 / AD7 |
| Pino 73 | PB10 — GPIO / AFEC10 / AD8 |
| Pino 74 | PB11 — GPIO / AFEC11 / AD9 |
| Pino 75 | PB12 — GPIO / SPI0 NPCS0 |
| Pino 76 | PB13 — GPIO / SPI0 NPCS1 |
| Pino 77 | PB14 — GPIO / SPI0 NPCS2 |
| Pino 78 | PB15 — GPIO / SPI0 NPCS3 |
| Pino 79 | VDDANA — Analog supply 3.3V |
| Pino 80 | VREFN — ADC reference negative |
| Pino 81 | VREFP — ADC reference positive |
| Pino 82 | PB16 — GPIO / SPI0 MISO |
| Pino 83 | PB17 — GPIO / SPI0 MOSI |
| Pino 84 | PB18 — GPIO / SPI0 SPCK |
| Pino 85 | PB19 — GPIO / SPI1 NPCS0 |
| Pino 86 | PB20 — GPIO / SPI1 NPCS1 |
| Pino 87 | PB21 — GPIO / SPI1 NPCS2 |
| Pino 88 | PB22 — GPIO / SPI1 NPCS3 |
| Pino 89 | PB23 — GPIO / SPI1 MISO |
| Pino 90 | PB24 — GPIO / SPI1 MOSI |
| Pino 91 | PB25 — GPIO / SPI1 SPCK |
| Pino 92 | PB26 — GPIO / TWD0 |
| Pino 93 | PB27 — GPIO / TWCK0 |
| Pino 94 | PB28 — GPIO / TWD1 |
| Pino 95 | PB29 — GPIO / TWCK1 |
| Pino 96 | PB30 — GPIO / URXD0 |
| Pino 97 | PB31 — GPIO / UTXD0 |
| Pino 98 | PC0 — GPIO / LCDDAT0 |
| Pino 99 | PC1 — GPIO / LCDDAT1 |
| Pino 100 | PC2 — GPIO / LCDDAT2 |
| Pino 101 | PC3 — GPIO / LCDDAT3 |
| Pino 102 | PC4 — GPIO / LCDDAT4 |
| Pino 103 | PC5 — GPIO / LCDDAT5 |
| Pino 104 | PC6 — GPIO / LCDDAT6 |
| Pino 105 | PC7 — GPIO / LCDDAT7 |
| Pino 106 | PC8 — GPIO / LCDDAT8 |
| Pino 107 | PC9 — GPIO / LCDDAT9 |
| Pino 108 | PC10 — GPIO / LCDDAT10 |
| Pino 109 | PC11 — GPIO / LCDDAT11 |
| Pino 110 | PC12 — GPIO / LCDDAT12 |
| Pino 111 | PC13 — GPIO / LCDDAT13 |
| Pino 112 | PC14 — GPIO / LCDDAT14 |
| Pino 113 | PC15 — GPIO / LCDDAT15 |
| Pino 114 | PC16 — GPIO / LCDDAT16 |
| Pino 115 | PC17 — GPIO / LCDDAT17 |
| Pino 116 | PC18 — GPIO / LCDDAT18 |
| Pino 117 | PC19 — GPIO / LCDDAT19 |
| Pino 118 | PC20 — GPIO / LCDDAT20 |
| Pino 119 | PC21 — GPIO / LCDDAT21 |
| Pino 120 | PC22 — GPIO / LCDDAT22 |
| Pino 121 | PC23 — GPIO / LCDDAT23 |
| Pino 122 | VDDIO — I/O supply 3.3V |
| Pino 123 | VSS — Ground |
| Pino 124 | PC24 — GPIO / LCDDISP |
| Pino 125 | PC25 — GPIO / LCDVSYNC |
| Pino 126 | PC26 — GPIO / LCDHSYNC |
| Pino 127 | PC27 — GPIO / LCDPCK |
| Pino 128 | PC28 — GPIO / LCDDEN |
| Pino 129 | PC29 — GPIO / LCDCC |
| Pino 130 | PC30 — GPIO / TCK / SWCLK |
| Pino 131 | PC31 — GPIO / TMS / SWDIO |
| Pino 132 | NRST — Active-low reset input |
| Pino 133 | TDO / SWO — JTAG TDO / Serial Wire Output |
| Pino 134 | TDI — JTAG TDI |
| Pino 135 | JTAGSEL — JTAG boundary scan select |
| Pino 136 | ERASE — Flash erase input (active-low) |
| Pino 137 | WKUP0 — Wakeup input 0 |
| Pino 138 | WKUP1 — Wakeup input 1 |
| Pino 139 | WKUP2 — Wakeup input 2 |
| Pino 140 | XIN32 — 32.768 kHz crystal input |
| Pino 141 | XOUT32 — 32.768 kHz crystal output |
| Pino 142 | XIN — Main crystal input (8-12 MHz) |
| Pino 143 | XOUT — Main crystal output |
| Pino 144 | VDDIO — I/O supply 3.3V |
Aplicações típicas
ATSAME70Q20B-AN é adequado para 6 aplicaçãos: Industrial Motor Control Drives, Industrial IoT Edge Gateways, Graphical HMI Touch Panels, Automotive Telematics and Gateway ECUs, Medical Instrumentation and Patient Monitors, Building Automation Controllers.
Industrial Motor Control Drives
The ATSAME70Q20B-AN's 300 MHz Cortex-M7 with FPU and DSP extensions is ideal for field-oriented control (FOC) of PMSM and BLDC motors, executing the Park/Clarke transforms and PI loops with deterministic cycle times. The 12-bit 2 MSPS ADC samples three-phase current simultaneously via PWM-triggered sequencing, while the hardware quadrature decoder handles encoder feedback up to 32-bit position count. Compared to Cortex-M4 motor MCUs, the Cortex-M7's double-precision FPU halves torque-ripple calculation time and improves sinusoidal commutation accuracy at high RPM. The 1 MB Flash accommodates FOC firmware plus CANopen or EtherCAT slave stacks without external memory.
Recomendado
Industrial IoT Edge Gateways
The ATSAME70Q20B-AN integrates dual CAN-FD, 10/100 Ethernet with 1588 PTP timestamping, and HS USB with on-chip PHY - the three connectivity pillars required for industrial IoT edge gateways bridging Fieldbus to Ethernet. The Cortex-M7 runs a real-time OS (FreeRTOS or Zephyr) plus a TCP/IP stack with TLS 1.3, offloading encryption to the Cortex-M7's hardware AES accelerator. The 384 KB SRAM handles TCP/IP buffers and CAN-FD message queues without external memory. Compared to Cortex-M4 gateways, the ATSAME70Q20B-AN's higher clock and 1588 PTP hardware deliver sub-microsecond timestamping accuracy for synchronized distributed control.
Recomendado
Graphical HMI Touch Panels
The ATSAME70Q20B-AN's integrated LCD controller supports resolutions up to XGA (1024x768) at 24 bpp and a parallel RGB interface, enabling direct connection to mid-size TFT LCD panels used in building automation and factory HMI. The 32-bit EBI drives external SDRAM for frame buffers (e.g., 16 MB for 800x480@32 bpp), and the 300 MHz Cortex-M7 with FPU renders emWin or LVGL UIs smoothly. The hardware 2D acceleration (line draw, BLIT) accelerates graphics primitives without CPU overhead. Compared to Cortex-M4 HMI controllers, the E70's hardware 2D engine halves screen-update latency for animated gauges.
Recomendado
Automotive Telematics and Gateway ECUs
The ATSAME70Q20B-AN's dual CAN-FD controllers (8 Mbps), Cortex-M7 300 MHz performance, and automotive-grade temperature range make it suitable for telematics control units (TCUs) and central gateway ECUs. The Ethernet MAC with 1588 PTP timestamping bridges automotive Ethernet (100BASE-T1) to legacy CAN networks, while the Cortex-M7 runs AUTOSAR-classical applications and security stacks (HSM with hardware AES/SHA). Compared to Cortex-M4 automotive MCUs, the ATSAME70Q20B-AN's deterministic interrupt latency (12 cycles) improves AUTOSAR OS conformance for safety-critical body controllers.
Recomendado
Medical Instrumentation and Patient Monitors
The ATSAME70Q20B-AN's 12-bit 2 MSPS ADC with hardware oversampling and the Cortex-M7 DSP extensions enable accurate acquisition of ECG, EEG, and SpO2 signals in patient monitoring equipment. The single-precision FPU executes biquad filters and FFT-based heart-rate-variability analysis at the Cortex-M7's 300 MHz rate, well within the 1 ms sampling budget. The hardware AES accelerator secures patient data (HIPAA compliance) with minimal CPU overhead. Compared to Cortex-M4 medical devices, the E70's hardware oversampling ADC delivers 16-bit effective resolution for high-precision instrumentation.
Recomendado
Building Automation Controllers
The ATSAME70Q20B-AN powers BACnet, KNX, and Modbus building automation controllers with its Ethernet MAC, dual CAN-FD, and UART/SPI/TWI interfaces - covering all major building-automation Fieldbus protocols. The 300 MHz Cortex-M7 runs a real-time OS plus a BACnet/IP stack with scheduling, while the 16 KB ICache/DCache improves interrupt response for time-critical HVAC control loops. The hardware AES secures building-access credentials and TLS traffic to cloud-based management dashboards. Compared to Cortex-M4 controllers, the E70's dual CAN-FD and PTP-enabled Ethernet streamline multi-protocol gateway designs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAME70Q20B-AN — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAME70Q20A-AN | ATSAME70Q21B-AN | ATSAME70Q19A-AN | ATSAME70Q20B-CN | ATSAME70N21B-CN | ATSAME70N20A-CNT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 | LQFP-144 (20x20 mm) - same | LQFP-144 (20x20 mm) - same |
| Core / Max Clock | Cortex-M7 / 300 MHz | Cortex-M7 / 300 MHz | Cortex-M7 / 300 MHz | Cortex-M7 / 300 MHz | Cortex-M7 / 300 MHz | Cortex-M7 / 300 MHz | Cortex-M7 / 300 MHz |
| Flash | 1 MB | 1 MB | 2 MB | 1 MB | 1 MB | 2 MB | 1 MB |
| SRAM | 384 KB | 384 KB | 384 KB | 256 KB | 384 KB | 384 KB | 384 KB |
| Ethernet MAC | Yes (10/100, 1588 PTP) | Yes (10/100, 1588 PTP) | Yes (10/100, 1588 PTP) | Yes (10/100, 1588 PTP) | Yes (10/100, 1588 PTP) | Yes (10/100, 1588 PTP) | No Ethernet |
| HS USB PHY | Yes (Device/Host) | Yes (Device/Host) | Yes (Device/Host) | Yes (Device/Host) | Yes (Device/Host) | No | Yes (Device/Host) |
| CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD |
| Operating Temperature | -40C to +105C (industrial) | -40C to +85C | -40C to +105C | -40C to +85C | 0C to +70C (commercial) | -40C to +85C | -40C to +85C |
Principais diferenciais
- Cortex-M7 with double-precision FPU at 300 MHz (vs ATSAME70Q19A-AN)
- Drop-in 1 MB Flash family member (vs ATSAME70Q21B-AN)
- Industrial temperature -40C to +105C (vs ATSAME70Q20B-CN)
Notas de projeto
The ATSAME70Q20B-AN requires four distinct supply domains: VDDIO (3.3 V for I/O ring), VDDANA (3.3 V for analog blocks, must be low-noise with separate ferrite from VDDIO), VDDPLL (1.2 V derived from internal regulator or external), and VDDOUT (1.2 V core LDO output). Place a 100 nF + 10 uF ceramic + 4.7 uF bulk capacitor directly at VDDOUT pin 19, plus 100 nF at every VDDIO/VSS pin pair. A common design pitfall is sharing VDDIO and VDDANA - this couples switching noise into the 12-bit ADC reference, increasing ENOB by 1-2 bits of degradation.
The 144-LQFP package has thermal resistance theta_JA of approximately 35 C/W (with 4-layer JEDEC test board). At 300 MHz with all peripherals active, the device dissipates up to 1.5 W; in industrial environments with ambient up to 85 C, the junction temperature can approach 137 C, exceeding the 125 C limit. Recommended: ensure 2 oz copper on top and bottom layers with a copper area of at least 1.5 square inches directly under the exposed pad of LQFP-176 variants; for LQFP-144 use thermal vias array (0.3 mm pitch, 9 vias minimum) under the package center.
The high-speed 50 MHz EBI bus to external SDRAM requires careful impedance control - trace impedance 50 ohm single-ended, 100 ohm differential for clock pairs, trace length matching within +/- 250 mils. Place the SDRAM within 50 mm of the EBI pins and use series 33 ohm damping resistors on EBI_D[15:0] and address lines. Common pitfall: routing EBI_DQ across the same layer as switching power supply traces - keep at least 5 mm separation or use a ground guard trace to prevent crosstalk into the SDRAM controller.
Three common pitfalls when bringing up ATSAME70Q20B-AN designs: (1) Forgetting to configure the supply monitor (SUPC) before enabling the main voltage regulator - this can cause brown-out resets on cold start. (2) Not enabling the 16 KB ICache before jumping to external QSPI flash - this halves code execution performance. (3) Leaving the ERASE pin floating - it must be tied high through a 10 kohm pull-up, otherwise an ESD event can trigger a full Flash erase in the field.
Place the 32.768 kHz crystal XIN32/XOUT32 within 5 mm of pins 140/141 with grounded guard ring to prevent coupling of switching noise from the main oscillator. The 8-12 MHz main crystal on pins 142/143 should be similarly guarded, and both crystal traces must maintain symmetric length (delta < 1 mm). For USB applications, the 90 ohm differential D+/D- pair from the on-chip PHY must be routed as a length-matched pair with 90 ohm differential impedance, and the USB shield ground should connect to PCB ground at a single point near the connector.
Informações de conformidade
RoHS and REACH compliant per Microchip product page. AEC-Q100 not qualified for standard -AN grade; contact Microchip for automotive AEC-Q100 qualified SAME70 variants. Lead-free and halogen-free per Microchip environmental compliance data.
