ATTINY416-SN - 20MHz 8-bit AVR MCU | Microchip Technology
料号： ATTINY416-SN ✓ 量产中ATTINY416-SN 概述
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals on one chip. The tinyAVR family belongs to the hierarchy of 8-bit AVR microcontrollers, embedded controllers, and semiconductor devices. Instead of requiring a separate processor, memory, and interface circuitry, the ATTINY416-SN provides a compact control platform for compact industrial, consumer, communication, and automation products.
The device runs AVR instructions at up to 20 MHz and organizes its 4 KB program Flash as 4K by 16 bits because AVR instructions are 16 or 32 bits wide. Its 256-byte SRAM provides working memory, while 128 bytes of nonvolatile EEPROM can retain small configuration or calibration values. The integrated analog features, Event System, and SleepWalking peripherals extend its usefulness beyond simple GPIO control while preserving a low-power design profile.
The ATTINY416-SN is suitable for designs using I2C, SPI, or USART connectivity, as identified in the manufacturer product information. These interfaces allow the microcontroller to connect sensors, serial memories, converters, communications modules, and other embedded peripherals without requiring discrete interface controllers. The Event System can route peripheral events directly between hardware functions, reducing CPU involvement in time-sensitive tasks, while SleepWalking allows selected peripherals to operate while the CPU is asleep.
Typical applications include compact sensor controllers, industrial condition-monitoring nodes, building-automation endpoints, low-power communication modules, actuator-control boards, and small consumer products. The 20-pin SOIC package supports conventional surface-mount assembly, while the combination of 20 MHz processing, EEPROM, and mixed serial interfaces provides a practical balance of capability, size, and design complexity.
For new PCB layouts, confirm the exact pin assignments and alternate-function capabilities in the Microchip datasheet before routing pins. Keep programming access, decoupling, power, ground, and communication signals routed according to the device's recommended layout, and validate clock, reset, and sleep-mode behavior across the complete operating temperature range.
This page combines the ATTINY416-SN specifications with package guidance, application-focused engineering context, datasheet links, and same-package replacement analysis. It is designed to help engineers identify the correct memory configuration, package, programming interface, and device variant before beginning layout or firmware development.
直接替换替代料： ATTINY416-SN ——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： ATTINY416-SN （相同外形与封装尺寸） ——差异在于 Package, SRAM.
ATTINY416-SSH
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATTINY416-SSN
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATTINY416-SSR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATTINY1616-SSN
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATTINY1617-SSN
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATTINY416-SN 最大额定值与电气特性
| Product Type | 8-bit AVR tinyAVR microcontroller |
| 最大时钟频率 | 20 MHz |
| Flash Memory | 4 KB |
| Flash Organization | 4K x 16 bits |
| SRAM | 256 bytes |
| EEPROM | 128 bytes |
| CPU Architecture | 8-bit AVR RISC |
| Multiplier | Hardware multiplier |
| Program Memory Type | In-system reprogrammable Flash |
| Serial Interfaces | I2C, SPI, and USART |
| 封装 | 20-pin SOIC |
| Package Type | SOIC-20 |
| 安装类型 | Surface mount |
| Technology | CMOS |
| Industrial Temperature Range | -40°C to +105°C |
| Green / Environmental Status | Green |
ATTINY416-SN soic-20 引脚配置指南
ATTINY416-SN（soic-20 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： ATTINY416-SN.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATTINY416-SN 适用于 6 应用s: Industrial Sensor and Condition-Monitoring Controller, Building Automation and Smart Sensor Node, Low-Power Communication Module, Compact Actuator and Motor-Control Interface, Portable Consumer and Wearable Controller, LED Lighting and Display Control.
Industrial Sensor and Condition-Monitoring Controller
The ATTINY416-SN fits compact condition-monitoring controllers because its 20 MHz AVR core can process sensor data while I2C and SPI support common digital sensors and memories. The 4 KB Flash provides room for embedded firmware, while 256 bytes of SRAM handles short acquisition and filtering tasks. Its 128-byte EEPROM can preserve configuration values or calibration offsets between resets. The -40°C to +105°C rating is suited to industrial environments, and the 20-pin SOIC package simplifies conventional surface-mount assembly.
推荐
Building Automation and Smart Sensor Node
The ATTINY416-SN is appropriate for a building-automation endpoint that combines a local sensor interface with remote serial communications. I2C can connect digital temperature, humidity, or environmental sensors, while USART provides a path to a building controller or network bridge. The device's SleepWalking capability can reduce processor activity during idle periods, and its Event System supports hardware-driven peripheral events. The 256-byte SRAM and 4 KB Flash provide a compact resource budget for low-cost distributed control nodes.
推荐
Low-Power Communication Module
The ATTINY416-SN can serve as the host controller in a small communications module that uses SPI for a radio or storage device and USART for configuration or diagnostics. Its 20 MHz processing rate supports responsive packet handling, and the 4 KB Flash stores a compact protocol stack or bootloader. The 128-byte EEPROM can hold link settings or identifiers. Compared with a larger microcontroller, the 20-pin SOIC package reduces board area while retaining the serial interfaces and nonvolatile configuration memory needed for a compact module.
推荐
Compact Actuator and Motor-Control Interface
The ATTINY416-SN is well suited to small actuator-control boards where an embedded controller must interpret switch inputs, drive outputs, and report status through a serial interface. The hardware multiplier assists efficient arithmetic in motion-control calculations, while the 20 MHz clock supports deterministic peripheral sequencing. Its 256 bytes of SRAM are adequate for compact control loops, and the EEPROM can retain position limits or configuration values. The SOIC-20 package supports compact, serviceable surface-mount assemblies.
推荐
Portable Consumer and Wearable Controller
The ATTINY416-SN can support compact wearable or portable consumer devices where board space and energy use are constrained. Its low-power architecture, SleepWalking support, and 128-byte EEPROM allow configuration data to be retained without continuously running the CPU. I2C and SPI can connect motion, biometric, or storage modules, while USART supports system diagnostics. The 4 KB Flash is sufficient for focused control firmware, but designers should keep code within the device's verified memory and stack limits.
推荐
LED Lighting and Display Control
The ATTINY416-SN is useful in compact LED lighting or display-control modules that require timed outputs, sensor response, and status reporting. The 20 MHz AVR core can manage multiple digital sequences, while the Event System can connect timer, communication, and output events without excessive CPU polling. I2C is suitable for LED drivers or display controllers, and USART can provide configuration commands. The 20-pin SOIC package offers a compact controller footprint without requiring a larger external interface device.
推荐
推荐产品汇总
工程参考数据： ATTINY416-SN ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATTINY416-SSH | ATTINY416-SSN | ATTINY416-SSR | ATTINY1616-SSN | ATTINY1617-SSN |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin SOIC | 20-pin SOIC | 20-pin SOIC | 20-pin SOIC | 20-pin SOIC | 20-pin SOIC |
| Processor Architecture | 8-bit AVR | 8-bit AVR | 8-bit AVR | 8-bit AVR | tinyAVR 8-bit AVR | tinyAVR 8-bit AVR |
关键差异点
- Exact ATTINY416 memory and processing configuration （对比 ATTINY1616-SSN)
- Three integrated serial interface types （对比 ATTINY1617-SSN)
- Industrial temperature suitability （对比 ATTINY416-SSH)
- Low-power event-driven control （对比 ATTINY1616-SSN)
设计说明
Route power and ground according to the manufacturer recommended layout, placing decoupling capacitors close to the device supply pins. Keep the 20 MHz clock path short and return it to a quiet ground reference. Serial interfaces such as I2C, SPI, and USART should follow the datasheet pin-multiplexing table rather than assuming that every adjacent GPIO is identical across tinyAVR family members.
Do not approve a substitution solely because the alternative uses a 20-pin SOIC. Confirm supply voltage, reset behavior, programming method, peripheral channels, interrupt mapping, and package dimensions. The ATTINY416-SSH, ATTINY416-SSN, and ATTINY416-SSR are close same-family choices, while ATTINY1616-SSN and ATTINY1617-SSN require explicit review of pin multiplexing and firmware changes.
The ATTINY416-SN combines a 20 MHz core with a low-power architecture and SleepWalking capability. Select operating modes around the actual sensor duty cycle, disable unused peripherals, and avoid leaving communication interfaces active when they are idle. The 4 KB Flash, 256-byte SRAM, and 128-byte EEPROM provide a compact footprint, so aggressive code growth should be checked against stack and application-storage limits.
Preserve access to the programming interface and avoid routing high-speed or switching signals beneath the MCU footprint where practical. Keep analog sensor inputs away from serial clock lines and noisy switching nodes. The Event System can reduce CPU intervention in periodic operations, but correct event routing and timer setup remain essential for deterministic behavior and low-power performance.
合规信息
The manufacturer listing identifies the ATTINY416-SN as green. Specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals statements require confirmation from the relevant Microchip product documentation.