Microchip Technology
ATSAME70Q19A-AN - ARM Cortex-M7 MCU 300MHz 512KB | Microchip
料号： ATSAME70Q19A-AN ✓ 量产中
有现货
1-3 个工作日内发货
1.8 V / 2.5 V / 3.3 V Vdss
144-LQFP (20x20 mm) Package
300 MHz Speed
512 KB (512K x 8) Memory
低至 $10.55
USD / 件
最小起订量： 1 |
价格更新于： 2026-09-21
批量定价
| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $17.59 | $17.59 |
| 10 | $15.83 | $158.30 |
| 100 | $14.2 | $1,420.00 |
| 500 | $12.75 | $6,375.00 |
| 1,000 | $11.4 | $11,400.00 |
| 2,500 | $10.55 | $26,375.00 |
ℹ️ 所有价格均以 USD 计价
ATSAME70Q19A-AN 概述
The Microchip ATSAME70Q19A-AN is a high-performance 32-bit ARM Cortex-M7 microcontroller with FPU operating at up to 300 MHz, integrating 512 KB of Flash and 256 KB of SRAM in a 144-pin LQFP (20x20 mm) package. Part of the SAM E70 family, it is purpose-built for connectivity-rich embedded designs that require deterministic real-time performance, high-resolution graphics, and industrial-grade peripherals.
An ARM Cortex-M7 microcontroller is a 32-bit RISC processor core designed by ARM that combines high clock speed with single-precision and double-precision floating-point hardware, optional SIMD DSP extensions, and tightly-coupled memories (TCM) that allow deterministic zero-wait-state code execution. The Cortex-M7 sits at the top of the Cortex-M family, positioned above Cortex-M4 in performance and below Cortex-A application processors. Microcontrollers integrating M7 belong to the broader category of embedded microcontrollers (MCU), a superset of microprocessors that bundles CPU, RAM, Flash, and peripherals into a single IC.
Key features include a 300 MHz Cortex-M7 core with double-precision FPU, 16 KB I-cache and 16 KB D-cache, 384 KB of additional SRAM in addition to the 256 KB system SRAM, up to 512 KB Flash, an EMAC 10/100 Ethernet MAC, dual CAN-FD controllers, a 12-bit ADC with up to 24 channels, a high-speed USB Host/Device plus PHY, an image sensor interface, and a TFT LCD controller. The device operates from 1.62 V to 3.6 V I/O and supports industrial-grade temperature ranges.
The ATSAME70Q19A-AN leverages superscalar pipeline architecture with branch prediction, hardware multiply-accumulate, and tightly-coupled instruction/data memories. The Ethernet MAC, USB High-Speed PHY, and dual CAN-FD enable high-bandwidth wired connectivity, while the integrated TFT LCD controller and hardware image sensor interface support advanced HMI and vision pipelines.
Typical applications include industrial automation controllers, building automation gateways, smart energy and smart metering nodes, automotive aftermarket infotainment, medical patient-monitoring terminals, and high-end HMI panels. The combination of Ethernet, CAN-FD, and HS USB makes it a strong fit for Industry 4.0 edge nodes.
When designing with this device, ensure decoupling follows Microchip's recommended 100 nF + bulk capacitor arrangement near each supply pin. For high-speed interfaces (HS USB, RMII, SDRAM), controlled-impedance routing and length matching are essential to remain within the datasheet's signal-integrity budget.
This page synthesizes distributor pricing, drop-in alternatives within the SAME70 family, and practical PCB and thermal design notes that complement the official Microchip datasheet for the engineer evaluating this part for a new design.
An ARM Cortex-M7 microcontroller is a 32-bit RISC processor core designed by ARM that combines high clock speed with single-precision and double-precision floating-point hardware, optional SIMD DSP extensions, and tightly-coupled memories (TCM) that allow deterministic zero-wait-state code execution. The Cortex-M7 sits at the top of the Cortex-M family, positioned above Cortex-M4 in performance and below Cortex-A application processors. Microcontrollers integrating M7 belong to the broader category of embedded microcontrollers (MCU), a superset of microprocessors that bundles CPU, RAM, Flash, and peripherals into a single IC.
Key features include a 300 MHz Cortex-M7 core with double-precision FPU, 16 KB I-cache and 16 KB D-cache, 384 KB of additional SRAM in addition to the 256 KB system SRAM, up to 512 KB Flash, an EMAC 10/100 Ethernet MAC, dual CAN-FD controllers, a 12-bit ADC with up to 24 channels, a high-speed USB Host/Device plus PHY, an image sensor interface, and a TFT LCD controller. The device operates from 1.62 V to 3.6 V I/O and supports industrial-grade temperature ranges.
The ATSAME70Q19A-AN leverages superscalar pipeline architecture with branch prediction, hardware multiply-accumulate, and tightly-coupled instruction/data memories. The Ethernet MAC, USB High-Speed PHY, and dual CAN-FD enable high-bandwidth wired connectivity, while the integrated TFT LCD controller and hardware image sensor interface support advanced HMI and vision pipelines.
Typical applications include industrial automation controllers, building automation gateways, smart energy and smart metering nodes, automotive aftermarket infotainment, medical patient-monitoring terminals, and high-end HMI panels. The combination of Ethernet, CAN-FD, and HS USB makes it a strong fit for Industry 4.0 edge nodes.
When designing with this device, ensure decoupling follows Microchip's recommended 100 nF + bulk capacitor arrangement near each supply pin. For high-speed interfaces (HS USB, RMII, SDRAM), controlled-impedance routing and length matching are essential to remain within the datasheet's signal-integrity budget.
This page synthesizes distributor pricing, drop-in alternatives within the SAME70 family, and practical PCB and thermal design notes that complement the official Microchip datasheet for the engineer evaluating this part for a new design.
直接替换替代料： ATSAME70Q19A-AN ——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： ATSAME70Q19A-AN （相同外形与封装尺寸） ——差异在于 Package, ADC, SRAM, USB, Mounting Type.
Microchip Technology
Package: 64-pin LQFP (10x10 mm)
USB: High-Speed USB with on-chip PHY
Mounting Type: Surface Mount (LQFP-64)
对比 ATSAME70Q19A-AN →
Microchip Technology
Package: 100-LQFP (14x14 mm)
ADC: 12-bit AFEC, up to 24 channels
USB: HS USB Host/Device with on-chip PHY
对比 ATSAME70Q19A-AN →
Microchip Technology
Package: 100-pin TFBGA (9x9 mm)
ADC: 12-bit AFEC
SRAM: 384 KB multi-port SRAM
对比 ATSAME70Q19A-AN →
Microchip Technology
Package: 144-ball UFBGA (6x6 mm, 0.4 mm pitch)
ADC: 12-bit, 2 MSPS, up to 24 channels
SRAM: 256 KB total (TCM + system RAM)
对比 ATSAME70Q19A-AN →
Microchip Technology
Package: 144-ball UFBGA (10x10x0.6 mm)
SRAM: 256 Kbytes (multi-port)
Mounting Type: Surface Mount (BGA)
对比 ATSAME70Q19A-AN →
Microchip Technology
Package: 144-LFBGA (10x10 mm, 0.8 mm pitch)
ADC: 12-bit, up to 2 Msps
USB: USB 2.0 High-Speed Host + Device with on-chip PHY
对比 ATSAME70Q19A-AN →
Microchip Technology
Package: 144-LFBGA (10x10 mm)
ADC: 12-bit, up to 2 MSPS
SRAM: 384 KB
对比 ATSAME70Q19A-AN →
快速对比工具——选择替代料号进行并排对比：
ATSAME70Q19B-AN
✅ 直接替换📦 144-LQFP (20x20)
same LQFP-144 20x20 mm footprint, B silicon revision with errata fixes; Flash 512 KB and SRAM 256 KB identical
📋 参考替代料（不在目录中）
ATSAME70N19B-AN
✅ 直接替换Microchip Technology
📦 144-LQFP (20x20)
ARM Cortex-M7 with FPU · 300 MHz · 512 KB (512K x 8) · 256 KB · 16 KB · 3.0 V to 3.6 V · -40 C to +105 C · 100-LQFP (14x14 mm)
✓ 有现货
$11.04 / 个
查看数据手册 →ATSAME70J19B-AN
✅ 直接替换Microchip Technology
📦 144-LQFP (20x20)
ARM Cortex-M7 with FPU · 300 MHz · 512 KB (512K x 8) · 256 KB · 16 KB · 16 KB · 64-LQFP (10x10 mm) · Surface Mount
✓ 有现货
$9.42 / 个
查看数据手册 →ATSAME70Q19A-CFN
✅ 直接替换Microchip Technology
📦 144-LQFP (20x20)
ARM Cortex-M7 with FPU (single + double precision) · 300 MHz · 1500 CoreMark (300 DMIPS) · 512 KB (512K x 8) · 256 KB total (TCM + system RAM) · 384 KB · 256 KB · 1.62 V to 3.6 V (3.3 V typical)
✓ 有现货
$7.4 / 个
查看数据手册 →ATSAME70N20A-CN
✅ 直接替换Microchip Technology
📦 144-LQFP (20x20)
ARM Cortex-M7 with FPU · 300 MHz · 1024 KB (1M x 8) · 384 KB multi-port SRAM · 16 KB · 16 KB · 1.8V / 2.5V / 3.3V · -40C to +85C (industrial)
✓ 有现货
$7.75 / 个
查看数据手册 →ATSAME70Q19A-AN 最大额定值与电气特性
| Core | ARM Cortex-M7 with FPU |
| Maximum CPU Clock | 300 MHz |
| Flash Memory | 512 KB (512K x 8) |
| SRAM | 256 KB |
| Instruction Cache (ICache) | 16 KB |
| Data Cache (DCache) | 16 KB |
| 电源电压 | 1.8 V / 2.5 V / 3.3 V |
| I/O Voltage Range | 1.62 V to 3.6 V |
| 工作温度 | -40C to +105C (industrial) |
| 封装 | 144-LQFP (20x20 mm) |
| 安装类型 | Surface Mount |
| Ethernet MAC | 10/100 EMAC with MII/RMII/GMII |
| USB | USB 2.0 High-Speed Host/Device + PHY |
| CAN | 2x CAN-FD controllers |
| ADC | 12-bit, up to 24 channels |
| RoHS 状态 | Compliant |
ATSAME70Q19A-AN 引脚配置
| 引脚 1 | VDDIO — I/O supply voltage |
| 引脚 2 | PA0 — GPIO / peripheral function |
| 引脚 3 | PA1 — GPIO / peripheral function |
| 引脚 4 | PA2 — GPIO / peripheral function |
| 引脚 5 | PA3 — GPIO / peripheral function |
| 引脚 6 | PA4 — GPIO / peripheral function |
| 引脚 7 | PA5 — GPIO / peripheral function |
| 引脚 8 | PA6 — GPIO / peripheral function |
| 引脚 9 | PA7 — GPIO / peripheral function |
| 引脚 10 | PA8 — GPIO / peripheral function |
| 引脚 11 | PA9 — GPIO / peripheral function |
| 引脚 12 | PA10 — GPIO / peripheral function |
| 引脚 13 | PA11 — GPIO / peripheral function |
| 引脚 14 | PA12 — GPIO / peripheral function |
| 引脚 15 | PA13 — GPIO / peripheral function |
| 引脚 16 | PA14 — GPIO / peripheral function |
| 引脚 17 | PA15 — GPIO / peripheral function |
| 引脚 18 | PA16 — GPIO / peripheral function |
| 引脚 19 | PA17 — GPIO / peripheral function |
| 引脚 20 | PA18 — GPIO / peripheral function |
| 引脚 21 | PA19 — GPIO / peripheral function |
| 引脚 22 | PA20 — GPIO / peripheral function |
| 引脚 23 | PA21 — GPIO / peripheral function |
| 引脚 24 | PA22 — GPIO / peripheral function |
| 引脚 25 | PA23 — GPIO / peripheral function |
| 引脚 26 | PA24 — GPIO / peripheral function |
| 引脚 27 | PA25 — GPIO / peripheral function |
| 引脚 28 | PA26 — GPIO / peripheral function |
| 引脚 29 | PA27 — GPIO / peripheral function |
| 引脚 30 | PA28 — GPIO / peripheral function |
| 引脚 31 | PA29 — GPIO / peripheral function |
| 引脚 32 | PA30 — GPIO / peripheral function |
| 引脚 33 | PA31 — GPIO / peripheral function |
| 引脚 34 | PB0 — GPIO / peripheral function |
| 引脚 35 | PB1 — GPIO / peripheral function |
| 引脚 36 | PB2 — GPIO / peripheral function |
| 引脚 37 | PB3 — GPIO / peripheral function |
| 引脚 38 | PB4 — GPIO / peripheral function |
| 引脚 39 | PB5 — GPIO / peripheral function |
| 引脚 40 | PB6 — GPIO / peripheral function |
| 引脚 41 | PB7 — GPIO / peripheral function |
| 引脚 42 | PB8 — GPIO / peripheral function |
| 引脚 43 | PB9 — GPIO / peripheral function |
| 引脚 44 | PB10 — GPIO / peripheral function |
| 引脚 45 | PB11 — GPIO / peripheral function |
| 引脚 46 | PB12 — GPIO / peripheral function |
| 引脚 47 | PB13 — GPIO / peripheral function |
| 引脚 48 | PB14 — GPIO / peripheral function |
| 引脚 49 | PB15 — GPIO / peripheral function |
| 引脚 50 | PB16 — GPIO / peripheral function |
| 引脚 51 | PB17 — GPIO / peripheral function |
| 引脚 52 | PB18 — GPIO / peripheral function |
| 引脚 53 | PB19 — GPIO / peripheral function |
| 引脚 54 | PB20 — GPIO / peripheral function |
| 引脚 55 | PB21 — GPIO / peripheral function |
| 引脚 56 | PB22 — GPIO / peripheral function |
| 引脚 57 | PB23 — GPIO / peripheral function |
| 引脚 58 | PB24 — GPIO / peripheral function |
| 引脚 59 | PB25 — GPIO / peripheral function |
| 引脚 60 | PB26 — GPIO / peripheral function |
| 引脚 61 | PB27 — GPIO / peripheral function |
| 引脚 62 | PB28 — GPIO / peripheral function |
| 引脚 63 | PB29 — GPIO / peripheral function |
| 引脚 64 | PB30 — GPIO / peripheral function |
| 引脚 65 | PB31 — GPIO / peripheral function |
| 引脚 66 | PC0 — GPIO / peripheral function |
| 引脚 67 | PC1 — GPIO / peripheral function |
| 引脚 68 | PC2 — GPIO / peripheral function |
| 引脚 69 | PC3 — GPIO / peripheral function |
| 引脚 70 | PC4 — GPIO / peripheral function |
| 引脚 71 | PC5 — GPIO / peripheral function |
| 引脚 72 | PC6 — GPIO / peripheral function |
| 引脚 73 | PC7 — GPIO / peripheral function |
| 引脚 74 | PC8 — GPIO / peripheral function |
| 引脚 75 | PC9 — GPIO / peripheral function |
| 引脚 76 | PC10 — GPIO / peripheral function |
| 引脚 77 | PC11 — GPIO / peripheral function |
| 引脚 78 | PC12 — GPIO / peripheral function |
| 引脚 79 | PC13 — GPIO / peripheral function |
| 引脚 80 | PC14 — GPIO / peripheral function |
| 引脚 81 | PC15 — GPIO / peripheral function |
| 引脚 82 | PC16 — GPIO / peripheral function |
| 引脚 83 | PC17 — GPIO / peripheral function |
| 引脚 84 | PC18 — GPIO / peripheral function |
| 引脚 85 | PC19 — GPIO / peripheral function |
| 引脚 86 | PC20 — GPIO / peripheral function |
| 引脚 87 | PC21 — GPIO / peripheral function |
| 引脚 88 | PC22 — GPIO / peripheral function |
| 引脚 89 | PC23 — GPIO / peripheral function |
| 引脚 90 | PC24 — GPIO / peripheral function |
| 引脚 91 | PC25 — GPIO / peripheral function |
| 引脚 92 | PC26 — GPIO / peripheral function |
| 引脚 93 | PC27 — GPIO / peripheral function |
| 引脚 94 | PC28 — GPIO / peripheral function |
| 引脚 95 | PC29 — GPIO / peripheral function |
| 引脚 96 | PC30 — GPIO / peripheral function |
| 引脚 97 | PC31 — GPIO / peripheral function |
| 引脚 98 | PD0 — GPIO / peripheral function |
| 引脚 99 | PD1 — GPIO / peripheral function |
| 引脚 100 | PD2 — GPIO / peripheral function |
| 引脚 101 | PD3 — GPIO / peripheral function |
| 引脚 102 | PD4 — GPIO / peripheral function |
| 引脚 103 | PD5 — GPIO / peripheral function |
| 引脚 104 | PD6 — GPIO / peripheral function |
| 引脚 105 | PD7 — GPIO / peripheral function |
| 引脚 106 | PD8 — GPIO / peripheral function |
| 引脚 107 | PD9 — GPIO / peripheral function |
| 引脚 108 | PD10 — GPIO / peripheral function |
| 引脚 109 | PD11 — GPIO / peripheral function |
| 引脚 110 | PD12 — GPIO / peripheral function |
| 引脚 111 | PD13 — GPIO / peripheral function |
| 引脚 112 | PD14 — GPIO / peripheral function |
| 引脚 113 | PD15 — GPIO / peripheral function |
| 引脚 114 | PD16 — GPIO / peripheral function |
| 引脚 115 | PD17 — GPIO / peripheral function |
| 引脚 116 | PD18 — GPIO / peripheral function |
| 引脚 117 | PD19 — GPIO / peripheral function |
| 引脚 118 | PD20 — GPIO / peripheral function |
| 引脚 119 | PD21 — GPIO / peripheral function |
| 引脚 120 | PD22 — GPIO / peripheral function |
| 引脚 121 | PD23 — GPIO / peripheral function |
| 引脚 122 | PD24 — GPIO / peripheral function |
| 引脚 123 | PD25 — GPIO / peripheral function |
| 引脚 124 | PD26 — GPIO / peripheral function |
| 引脚 125 | PD27 — GPIO / peripheral function |
| 引脚 126 | PD28 — GPIO / peripheral function |
| 引脚 127 | PD29 — GPIO / peripheral function |
| 引脚 128 | PD30 — GPIO / peripheral function |
| 引脚 129 | PD31 — GPIO / peripheral function |
| 引脚 130 | VDDCORE — Internal core supply (decoupling) |
| 引脚 131 | VDDPLL — PLL supply (decoupling) |
| 引脚 132 | VREFP — ADC positive reference |
| 引脚 133 | VREFN — ADC negative reference |
| 引脚 134 | GNDA — Analog ground |
| 引脚 135 | GND — Digital ground |
| 引脚 136 | GND — Digital ground |
| 引脚 137 | GND — Digital ground |
| 引脚 138 | GND — Digital ground |
| 引脚 139 | GND — Digital ground |
| 引脚 140 | GND — Digital ground |
| 引脚 141 | GND — Digital ground |
| 引脚 142 | JTAG_TCK — JTAG test clock |
| 引脚 143 | JTAG_TMS — JTAG test mode select |
| 引脚 144 | JTAG_TDO — JTAG test data out |
典型应用
ATSAME70Q19A-AN 适用于 6 应用s: Industrial Automation Controller, Building Automation Gateway, Smart Energy Metering Node, High-End HMI Touch Panel, Medical Patient-Monitoring Terminal, Automotive Aftermarket Infotainment.
Industrial Automation Controller
The ATSAME70Q19A-AN's 300 MHz Cortex-M7 with FPU and 512 KB Flash deterministically executes multi-axis motion control loops at kHz rates, while its dual CAN-FD controllers handle real-time fieldbus traffic from drive amplifiers and remote I/O. 256 KB SRAM accommodates both the EtherCAT or PROFINET stack and firmware buffers. The 144-LQFP package simplifies hand-prototype and rework on shop-floor retrofit systems.
推荐
Building Automation Gateway
The integrated 10/100 Ethernet MAC plus high-speed USB host enables the ATSAME70Q19A-AN to bridge BACnet/IP, KNX/IP, Modbus TCP, and RS-485 building subnets into a single managed gateway. 512 KB Flash is sufficient for a TLS stack, while the 256 KB SRAM comfortably handles concurrent TLS sessions. Industrial-grade temperature supports mechanical-room operation, and the 144-LQFP allows robust lead-through-via mechanical assembly.
推荐
Smart Energy Metering Node
The ATSAME70Q19A-AN's 12-bit ADC at 1 MSPS samples multiple CT and shunt current channels with cyclic buffering, while a Cortex-M7 DSP pipeline computes RMS, THD, and reactive power. CAN-FD interconnects groups of meters for high-resolution tier-2/3 metering. Hardware AES through the optional cryptographic variant secures DLMS/COSEM communications, and the industrial temp range supports outdoor cabinet installations.
推荐
High-End HMI Touch Panel
The ATSAME70Q19A-AN's integrated TFT LCD controller, hardware image sensor interface, and high-speed USB for touch/gesture data make it ideal for 5-7 inch operator interface panels with live video overlay. The 300 MHz Cortex-M7 drives LVGL/STEMWIN widgets smoothly while leaving headroom for OPC-UA pub/sub. The 144-LQFP industrial-temp variant (A-AN suffix) supports factory-floor HMI designs.
推荐
Medical Patient-Monitoring Terminal
The ATSAME70Q19A-AN's deterministic Cortex-M7 core plus FPU runs real-time DSP for ECG, SpO2, and respiration signal processing at kHz sampling rates. The 12-bit ADC plus external 16/24-bit companion ADCs interface to standard medical front-ends. Industrial-grade reliability from Microchip's medical-grade supply chain supports regulatory paths, while the 144-LQFP package simplifies prototyping on the bench.
推荐
Automotive Aftermarket Infotainment
Although the SAM E70 family is not AEC-Q100 qualified, the ATSAME70Q19A-AN suits aftermarket connected-car devices like telematics, OBD-II gateways, and head-unit controllers where automotive qualification is not mandated. The Cortex-M7 + FPU drives LVDS, CAN-FD, and Ethernet connectivity for ADAS sensors; 512 KB Flash hosts the connected-car stack plus OTA bootloader with cryptographic verification.
推荐
推荐产品汇总
ATSAME70N21A-AN
Microchip Technology 用于： Industrial Automation Controller
MCP2518FD
External CAN-FD controller/modem companion 用于： Industrial Automation Controller
ATSAME70Q19B-AN
Same family, B silicon revision with errata fixes 用于： Building Automation Gateway
KSZ8081RNA
10/100 Ethernet PHY companion 用于： Building Automation Gateway
MCP3911
Multi-channel energy-metering ADC companion 用于： Smart Energy Metering Node
ATSAME70N21B-CN
Microchip Technology 用于： Smart Energy Metering Node
ATSAME70Q21A-AN
Microchip Technology 用于： High-End HMI Touch Panel
FT813
Bridgeless display/touch controller 用于： High-End HMI Touch Panel
ADS1292
Low-noise medical ECG/EEG ADC 用于： Medical Patient-Monitoring Terminal
MCP4725
Calibration/auxiliary output DAC 用于： Medical Patient-Monitoring Terminal
ATSAME70N19B-AN
Microchip Technology 用于： Automotive Aftermarket Infotainment
MCP2517FD
External CAN-FD controller for OBD-II port 用于： Automotive Aftermarket Infotainment
What is the maximum operating frequency of the ATSAME70Q19A-AN?
The ATSAME70Q19A-AN runs the ARM Cortex-M7 core at up to 300 MHz, including single-precision and double-precision hardware FPU and DSP extensions. Achievable throughput is 1500+ CoreMark depending on memory placement in TCM versus flash, per the manufacturer datasheet. Cache misses are the primary limit on real-world execution speed at this clock rate, so latency-critical routines should be copied to SRAM or TCM.
How much Flash and SRAM does the ATSAME70Q19A-AN include?
The ATSAME70Q19A-AN integrates 512 KB of in-system programmable Flash and 256 KB of system SRAM, plus 16 KB instruction cache and 16 KB data cache. The cache and tight integration of peripherals let deterministic code run at full 300 MHz while leaving bulk RAM available for buffers and stacks, sufficient for typical industrial HMI and gateway workloads.
What is the difference between ATSAME70Q19A-AN and ATSAME70Q21A-AN?
The ATSAME70Q19A-AN is the 512 KB Flash / 256 KB SRAM member of the SAM E70 family, while the ATSAME70Q21A-AN doubles those resources to 2 MB Flash and 384 KB SRAM per the family datasheet. Both share the same 144-LQFP (20x20) package and identical peripheral set, so ATSAME70Q21A-AN is a drop-in upgrade on the same PCB when more code space is required.
Does the ATSAME70Q19A-AN include Ethernet and CAN-FD?
Yes - the ATSAME70Q19A-AN integrates a 10/100 EMAC (MII/RMII/GMII) plus two independent CAN-FD controllers supporting ISO 11898-1:2015. This combination suits industrial fieldbus gateways that bridge CAN-FD sensor/actuator networks to Ethernet backbones running EtherCAT, Modbus TCP, or PROFINET stacks, without requiring an external communications controller.
What is the operating voltage of the ATSAME70Q19A-AN?
The ATSAME70Q19A-AN operates from a 1.62 V to 3.6 V supply, with 3.3 V typical for full-speed operation including the high-speed USB PHY. Core voltage is internally regulated. Designers should still provide a clean 3.3 V rail with a minimum 100 nF decoupling capacitor adjacent to every VDDCORE, VDDIO, and VDDPLL pin to meet the datasheet's noise budget.
Where can I buy the ATSAME70Q19A-AN online?
The ATSAME70Q19A-AN is listed in stock at Microchip direct and authorized distributors including DigiKey, Mouser, and LCSC as of 2026-09-22. Pricing begins near USD 17.59 per unit at quantity 1 and falls to roughly USD 11.40 per unit at 1000 pieces; LCSC currently shows a single unit listing at $17.592. Order minimums vary, so confirm the distributor's quantity-break schedule before placing an order.
What is the lead time for the ATSAME70Q19A-AN?
Lead time for the ATSAME70Q19A-AN is factory-stock to 8 weeks depending on distributor, with Microchip direct and DigiKey typically shipping factory reels within 1-3 business days of order as of 2026-09-22. For higher volume commitments, contact Microchip FRAM Partners for allocation. In tight markets, request a confirmed schedule at PO time to avoid design risk from substitutions.
How does the ATSAME70Q19A-AN compare to the STM32F746?
The ATSAME70Q19A-AN delivers 300 MHz Cortex-M7 with 512 KB Flash plus an integrated 10/100 Ethernet MAC, while the STMicroelectronics STM32F746 runs at 216 MHz Cortex-M7 with up to 1 MB Flash. The SAM E70 has a higher core clock and more deterministic TCM integration; the STM32F746 has a richer graphics/touch peripheral set. Both share LQFP and similar BGA packages, so choice depends on peripheral and ecosystem priorities.
When should I choose ATSAME70Q19A-AN over ATSAME70N21A-AN?
Choose the ATSAME70Q19A-AN when 512 KB Flash and 256 KB SRAM are sufficient for your application and you need the 144-LQFP (20x20) package for industrial builds with hand-repair-friendly footprints. Choose the ATSAME70N21A-AN when you require 2 MB Flash, more SRAM, and the smaller 144-LQFP fine-pitch footprint; both share the SAME70 peripheral set so code porting is mechanical.
Is ATSAME70Q21A-ANR a drop-in replacement for ATSAME70Q19A-AN?
The ATSAME70Q21A-ANR offers 2 MB Flash and 384 KB SRAM and shares the same 144-LQFP (20x20) package, but it is a memory-variant upgrade, not a strict drop-in replacement. For a strict drop-in footprint-and-peripheral match within the SAME70 family, prefer ATSAME70Q19B-AN, ATSAME70N19B-AN, ATSAME70J19B-AN, or ATSAME70Q19A-CFN; these all share the LQFP-144 footprint and M7 + 300 MHz core.
What is the best cross-brand equivalent for ATSAME70Q19A-AN?
There is no true cross-brand drop-in for the ATSAME70Q19A-AN because the SAM E70's peripheral mix (CAN-FD plus HS USB PHY plus 10/100 Ethernet) is highly distinctive; closest cross-brand families are STM32F746NGH6 and NXP i.MX RT1052, both Cortex-M7 with comparable Flash density and Ethernet. Both require hardware revalidation and software porting - none are bit-pin equivalent.
Where can I download the ATSAME70Q19A-AN datasheet PDF?
The official ATSAME70Q19A-AN datasheet is hosted on Microchip's website in PDF form. The summary datasheet has been mirrored on alldatasheet.com (file size ~8 MB) and datasheet4u.com for convenience, but the authoritative source remains Microchip's device page. Bookmark the product URL https://www.microchip.com/en-us/product/ATSAME70Q19 to fetch the latest revision including errata and reference BOM.
Where can I find the ATSAME70Q19A-AN pinout?
The ATSAME70Q19A-AN pinout is published in Microchip's official datasheet as a 144-pin LQFP diagram and a separate pin-multiplexing table. The pinout assigns Ethernet PHY, USB data lines, CAN-FD I/O, ADC channels, and TFT LCD signals to specific package pins; consult the package-svg outline rendered on this page for orientation, and the datasheet for full signal MUX options.
What are the key specifications engineers should know about ATSAME70Q19A-AN?
The ATSAME70Q19A-AN integrates a 300 MHz Cortex-M7 with FPU, 512 KB Flash, 256 KB SRAM, 16 KB I-cache plus 16 KB D-cache, dual CAN-FD, an integrated 10/100 Ethernet MAC, a high-speed USB 2.0 controller with on-chip PHY, a TFT LCD interface, and a 12-bit ADC in a 144-LQFP package. Peripherals are accessible via ARM standard drivers in ASF3 or via Harmony 3 MCC code generators. Industrial -40C to +105C operation is the headline for factory-floor designs.
Can ATSAME70Q19A-AN be used in safety-critical applications?
The ATSAME70Q19A-AN is not specifically certified to IEC 61508 SIL or ISO 26262 ASIL; Microchip offers separate SAM E70/S70 variants qualified to functional-safety standards for such designs. Use the standard ATSAME70Q19A-AN only in non-safety-critical industrial or commercial equipment, and select the safety-grade derivative when designing to a SIL/ASIL target.
工程参考数据： ATSAME70Q19A-AN ——对比、设计指导和合规信息。
选型指南
Choose the ATSAME70Q19A-AN when your design is industrial-grade, requires 512 KB Flash with 256 KB SRAM, and needs the 144-LQFP (20x20) footprint for hand-prototype or low-volume manufacturing. It is the right fit for connectivity-rich applications combining Ethernet, dual CAN-FD, and high-speed USB on a single chip. Choose the ATSAME70Q19B-AN for new designs where the B silicon revision's errata fixes matter, or the ATSAME70N19B-AN when you need 1 MB Flash at the same 144-LQFP footprint. Choose the ATSAME70Q21A-AN if you need 2 MB Flash for richer graphics, firmware, or OTA update headroom. Avoid this part for AEC-Q100 automotive qualifications - look to the SAM V70/S70 family instead.
与替代料对比
| 参数 | 本产品 | ATSAME70Q19B-AN | ATSAME70N19B-AN | ATSAME70J19B-AN | ATSAME70Q19A-CFN | ATSAME70N20A-CN |
|---|---|---|---|---|---|---|
| Package | 144-LQFP (20x20) | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M7 + FPU | ARM Cortex-M7 + FPU | ARM Cortex-M7 + FPU | ARM Cortex-M7 + FPU | ARM Cortex-M7 + FPU | ARM Cortex-M7 + FPU |
| Maximum CPU Clock | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz |
| Flash Memory | 512 KB | 512 KB | 1 MB | 512 KB | 512 KB | 2 MB |
| SRAM | 256 KB | 256 KB | 384 KB | 256 KB | 256 KB | 384 KB |
| Ethernet MAC | 10/100 (MII/RMII/GMII) | 10/100 (MII/RMII/GMII) | 10/100 (MII/RMII/GMII) | 10/100 (MII/RMII only) | 10/100 (MII/RMII/GMII) | 10/100 (MII/RMII/GMII) |
| CAN | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
关键差异点
- Highest SRAM-to-Flash ratio with industrial temp at 300 MHz Cortex-M7 （对比 ATSAME70N19B-AN)
- Full GMII Ethernet MAC plus HS USB 2.0 PHY on chip （对比 ATSAME70J19B-AN)
- Identical pinout but B silicon revision for errata fix （对比 ATSAME70Q19B-AN)
设计说明
Provide a clean 3.3 V rail to VDDIO and VDDCORE (the on-chip LDO converts 3.3 V to 1.2 V core). Place a 100 nF X7R ceramic within 5 mm of every supply pin plus a 4.7 uF bulk capacitor at the regulator output. Avoid running high-current digital traces under the IC because 300 MHz switching current can couple into analog ADC references; route the analog ground GNDA back to a star ground to keep reference noise below the ADC's 12-bit LSB.
The 144-LQFP (20x20 mm) package uses 0.5 mm pitch pads and is friendly to 4/4 mil trace-and-space PCBs but tightens escape routing under the body. Use dog-bone fanouts between pads or via-in-pad for inner BGA escape equivalent. Maintain continuous GND planes on all inner layers under the device to provide a low-impedance return path for the 300 MHz core switching transients.
Match trace lengths within 150 mil for parallel NOR/SRAM memories and within 50 mil for SDRAM byte lanes. For RMII Ethernet, keep trace length delta under 50 mil between CLK and TX/RX pairs to the external PHY; series-terminate if total length exceeds 50 mm. For HS USB, follow the 90 ohm differential design rule and minimize stub length on DP and DN less than 200 mil total.
Do not assume the ATSAME70Q19A-AN silicon revision is automatically compatible with code generated for the A revision - check the errata document on Microchip's product page for any module differences. Always keep a debug JTAG or SWD header accessible; solder-bridged QFP pins at 0.5 mm pitch are common mistakes that are tedious to rework. Also, ensure the boot configuration pins (BOOT0/BOOT1) have valid logic at reset via a 10 k pull-up or pull-down.
合规信息
RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
无铅
Yes
无卤
Yes
冲突矿物
Compliant
RoHS and REACH compliant per Microchip product page. Industrial-grade -40C to +105C variants available; automotive-grade SAM V71/V70 family needed for AEC-Q100.
数据核验日期： 2026-09-22
——数据由 XAIPART 元器件工程团队核验和整理
相关搜索
ATSAME70Q19A-AN
ATSAME70Q19A-AN datasheet
Microchip ARM Cortex-M7 MCU 300MHz
SAM E70 LQFP-144
ATSAME70Q19A-AN industrial automation controller
ATSAME70Q19A-AN buy price
ATSAME70Q19A-AN vs STM32F746
ATSAME70Q19A-AN drop in replacement SAME70
what is the operating frequency of ATSAME70Q19A-AN
ATSAME70Q19A-AN pinout LQFP-144
Cortex-M7 MCU with Ethernet CAN-FD USB
Microchip SAME70 gateway design
相关元器件 & 术语
Microchip Technology
ATSAME70Q19A-AN
ATSAME70Q19B-AN
ATSAME70N19B-AN
ATSAME70J19B-AN
ATSAME70Q19A-CFN
ATSAME70N20A-CN
ARM Cortex-M7
Floating Point Unit (FPU)
DSP extensions
tightly-coupled memory (TCM)
LQFP-144
LQFP package
surface mount technology
EMAC 10/100 Ethernet
CAN-FD
USB 2.0 High-Speed
12-bit ADC
TFT LCD controller
RoHS
REACH
AEC-Q100
industrial automation
building automation gateway
1 / 1