ATTINY806-SN - 20MHz 8KB AVR MCU | Microchip Technology
部品番号: ATTINY806-SN ✓ 生産中ATTINY806-SN 概要
A microcontroller is a programmable semiconductor that integrates a CPU core, memory, and peripherals on one device. The ATtiny806 belongs to the hierarchy of 8-bit MCU, embedded controller, digital controller, and semiconductor. Its compact memory footprint makes it practical for cost-sensitive products that need deterministic control, local signal conditioning, and communication without a larger processor or external memory.
The device operates from 1.8 V to 5.5 V and supports an industrial temperature range of -40°C to +105°C. Its 20 MHz maximum clock speed and hardware multiplier improve multiply and timing-intensive routines. Core Independent Peripherals, an Event System, and SleepWalking support event-driven and low-power operation, while accurate analog features make the MCU useful for sensor and control-loop designs.
The ATTINY806 integrates programmable peripherals for embedded signal acquisition and control. The Event System allows peripherals to respond directly to hardware events, reducing the need for CPU intervention. SleepWalking permits selected activity to continue while the CPU sleeps. These characteristics are especially valuable when the system must respond quickly to external events without continuously polling inputs or wasting power between events.
Typical applications include industrial sensor nodes, compact motor and actuator controllers, building and access-control modules, compact industrial instrumentation, and low-power IoT sensor interfaces. The 512-byte SRAM and 128-byte EEPROM are sufficient for small control loops, parameter storage, status flags, and communication buffers when the application avoids large data logging or complex user interfaces.
Designers should account for the limited SRAM when buffering serial data or executing repeated library functions. Place decoupling capacitors close to the supply pins, route sensitive analog inputs away from fast-switching nodes, and confirm oscillator, ADC, and communication settings against the device's operating conditions. The 20-pin SOIC footprint also simplifies hand assembly and through-hole industrial assembly compared with leadless packages.
This page combines the manufacturer specifications, package details, drop-in upgrade options, and practical selection guidance needed to evaluate the ATTINY806-SN. It also identifies where memory, peripheral, and qualification differences matter before a replacement is approved for an existing PCB.
ドロップイン代替品: ATTINY806-SN — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
ATTINY806-SNR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATTINY804-SN
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ATTINY814-SN
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ATTINY1606-SN
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ATTINY1614-SN
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ATTINY1616-SN
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ATTINY806-SN 最大定格＆電気的特性
| Product Type | 8-bit AVR microcontroller |
| Series | tinyAVR 0-series |
| 最大クロック周波数 | 20 MHz |
| Flash Memory | 8 KB (8K x 8) |
| SRAM | 512 bytes |
| EEPROM | 128 bytes |
| Operating Voltage Range | 1.8 V to 5.5 V |
| 動作温度範囲 | -40°C to +105°C |
| Processor Architecture | 8-bit AVR with hardware multiplier |
| パッケージ | 20-pin SOIC, 300 mil |
| 実装タイプ | Surface mount |
| Packaging | Tube |
| Event System | Supported |
| SleepWalking | Supported |
| Core Independent Peripherals | Supported |
| Analog Features | Accurate analog features |
| RoHS ステータス | Compliant |
| Functional Safety | Functional Safety (FuSa) microcontroller |
ATTINY806-SN 20-pin soic, 300 mil ピン配置ガイド
ATTINY806-SN (20-pin soic, 300 mil パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: ATTINY806-SN.
詳細は データシート をご参照ください。
主な用途
ATTINY806-SN の用途: 6 件s: Industrial Sensor Conditioning, Event-Driven Control Module, Low-Power IoT Sensor Node, Compact Actuator Controller, Building and Access Control Module, Compact Instrumentation Interface.
Industrial Sensor Conditioning
The ATTINY806-SN fits compact sensor-conditioning modules because its 8-bit AVR core runs up to 20 MHz, while 512 bytes of SRAM and 128 bytes of EEPROM support local filtering, calibration values, and operating-state storage. The 1.8 V to 5.5 V supply range also accommodates low-voltage sensor systems. Place the controller between the sensor interface and communications circuitry, and use the accurate analog features for thresholding or signal conditioning. The principal trade-off is limited RAM, so avoid large sample buffers and move extensive history to external storage or a higher-capacity MCU.
おすすめ
Event-Driven Control Module
The ATTINY806-SN is appropriate for event-driven control because its Event System and Core Independent Peripherals can connect peripheral events without continuous CPU polling. At 20 MHz, the AVR processor has ample headroom for deterministic control logic, while SleepWalking helps lower power when activity is intermittent. Use the Event System for timer, pin, or comparator-driven workflows and let the MCU sleep between events. Verify event routing, wake-up behavior, and timing margins in the manufacturer datasheet because the 512-byte SRAM remains the principal limitation for multi-channel buffering.
おすすめ
Low-Power IoT Sensor Node
The ATTINY806-SN supports a low-power IoT sensor node because SleepWalking permits selected peripheral activity while the CPU is inactive. Its 1.8 V minimum operating voltage supports energy-conscious sensor platforms, and the 8 KB Flash can hold compact application firmware while 128 bytes of EEPROM retains configuration data. Use the controller for periodic acquisition, local threshold decisions, and packet preparation rather than demanding analytics on the device. Its 512-byte SRAM and 128-byte EEPROM limit local buffering, so firmware should transmit or summarize data promptly and avoid dense logging structures.
おすすめ
Compact Actuator Controller
The ATTINY806-SN can control compact actuators where deterministic timing, local logic, and limited connectivity are required. Its 20 MHz AVR core and hardware multiplier support fast control calculations, while the Event System can coordinate timer and peripheral activity to reduce processor latency. The 1.8 V to 5.5 V range allows integration with common low-energy rails, and the industrial temperature range supports equipment from -40°C to +105°C. Validate drive current, protection, and thermal performance in the actuator interface because the microcontroller itself should not directly carry loads beyond its specified GPIO ratings.
おすすめ
Building and Access Control Module
The ATTINY806-SN suits compact access-control or building modules that combine local logic, serial communication, and EEPROM-backed configuration. Its 20 MHz processing rate supports responsive command handling, and 128 bytes of EEPROM can hold identifiers or calibration values, although larger credential tables belong in external memory. The Event System helps coordinate inputs, timers, and communication interrupts, reducing the need for continuous polling. The 20-pin SOIC package remains practical for leaded assembly, and the -40°C to +105°C range supports industrial environments. Validate communication timing and security requirements independently of the MCU's functional-safety designation.
おすすめ
Compact Instrumentation Interface
The ATTINY806-SN can serve as the local control and communication interface in compact instrumentation. Its accurate analog features, 20 MHz AVR core, and 128 bytes of EEPROM are useful for sensor calibration, status tracking, and configuration retention. The Event System allows timer or comparator activity to drive the workflow, while SleepWalking helps control idle consumption. Because only 512 bytes of SRAM are available, the firmware should process measurements immediately rather than retain long time-series arrays. Confirm analog accuracy, conversion requirements, reference strategy, and communication baud-rate assumptions against the manufacturer documentation.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ATTINY806-SN — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | ATTINY806-SNR | ATTINY804-SN | ATTINY814-SN | ATTINY1606-SN | ATTINY1614-SN | ATTINY1616-SN |
|---|---|---|---|---|---|---|---|
| Package | SOIC-20 | SOIC-20 | SOIC-20 | SOIC-20 | SOIC-20 | SOIC-20 | SOIC-20 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
主な差別化要因
- Direct same-configuration packaging option （vs ATTINY806-SNR)
- Event-driven control without continuous polling （vs ATTINY804-SN)
- Compact memory architecture for focused embedded control （vs ATTINY1614-SN)
- Broad low-voltage operating range （vs ATTINY1616-SN)
設計ノート
Route the supply and ground connections directly to the pins identified in the Microchip pin-description table, and place the required bypass capacitor at the power pins rather than at the edge of the board. Keep analog inputs away from clock, switching, and high-current return paths. Because this is a 20-pin SOIC with limited routing space, assign pins before finalizing the schematic and preserve a short return path beneath or adjacent to the device.
Design the power tree for a 1.8 V to 5.5 V operating range and verify every peripheral limit at the minimum and maximum rail conditions. Account for sleep current, active current, startup behavior, and analog-reference requirements rather than sizing the supply from the processor clock alone. If the module also powers sensors or actuators, separate noisy loads from the MCU rail and provide local filtering at each load to prevent transients from disturbing the controller.
Treat the 512-byte SRAM as a hard design constraint. Avoid large stack frames, deep recursive routines, oversized communication buffers, and sample arrays that could overflow memory, and leave headroom for interrupt context. The 128-byte EEPROM is suitable for small configuration or identification data but not bulk logging. Review watchdog, brownout, programming, and fuse settings according to the manufacturer datasheet before committing a production firmware image.
Use the Event System and SleepWalking only after defining the event-routing and wake-up sequence in firmware. Verify which peripheral events can operate while the CPU sleeps and how quickly the core resumes execution. Keep the sleep-entry path short and avoid polling loops that defeat low-power operation. For communication or sensor interfaces, test signal integrity at the intended clock and bus rates with the final grounding and decoupling layout.
コンプライアンス情報
RoHS compliance is identified in the component listing. No explicit REACH, lead-free, halogen-free, conflict-minerals, or automotive-qualification status is established for this ordering code.
