ATTINY212-SSN - 8-Bit 20MHz AVR tinyAVR 1 MCU | 8-SOIC | Microchip
部品番号: ATTINY212-SSN ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 10 | $0.74 | $7.40 |
| 100 | $0.62 | $62.00 |
| 500 | $0.55 | $275.00 |
| 1,000 | $0.48 | $480.00 |
| 3,000 | $0.41 | $1,230.00 |
ATTINY212-SSN 概要
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working memory, and programmable I/O peripherals. The ATTINY212-SSN falls into the 8-bit microcontroller hypernym hierarchy: 8-bit MCU -> AVR RISC MCU -> tinyAVR 1-series MCU -> low-power microcontroller -> embedded system IC -> semiconductor. Its 8-bit AVR architecture executes one instruction per clock cycle, giving it deterministic performance well-suited to real-time control tasks such as sensor reading, PWM generation, and low-rate serial communication.
Key specifications include 2 KB of self-programmable Flash, 128 bytes of SRAM, 64 bytes of EEPROM, six general-purpose I/O pins, a 10-bit ADC with up to 6 channels, a 16-bit Timer/Counter type A, and a USART with LIN support. The device consumes only a few microamperes in active mode and drops into sub-microamp sleep modes with peripheral interrupts, allowing battery-powered designs to run for years from a single cell. Internal 20 MHz calibrated oscillator eliminates the need for an external crystal in many designs.
Typical applications include battery management ICs, LED drivers, sensor node controllers, home automation endpoints, capacitive-touch user interfaces, and industrial sensor transmitters. The SOIC-8 footprint simplifies hand-soldering and rework on 2-layer boards while remaining compatible with automated pick-and-place assembly. The wide 1.8 V to 5.5 V operating range allows direct connection to single-cell Li-ion, two-cell alkaline, or 3.3 V/5 V system rails without level shifting.
When designing with the ATTINY212-SSN, allocate sufficient decoupling (100 nF close to VDD) and follow the datasheet's recommended UPDI programming pinout for in-system updates. The 20-pin-functional-mode multiplexing requires careful pin-function selection early in the firmware architecture to avoid late-stage rework.
ドロップイン代替品: ATTINY212-SSN — 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。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ATTINY212-SSN （同一形状・フットプリント） — 相違点: ADC, Core, EEPROM, Operating Temperature, Package.
クイック比較ツール — 並列比較する代替部品を選択:
ATTINY212-SSFR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATTINY412-SSN
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATTINY214-SSN
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATTINY202-SSN
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ATTINY1614-SSN
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ATTINY212-SSN 最大定格＆電気的特性
| Product Family | tinyAVR 1-series |
| Core | AVR 8-bit RISC |
| CPU Bit Width | 8-bit |
| 最大クロック周波数 | 20 MHz |
| Program Memory (Flash) | 2 KB (2K x 8) |
| SRAM | 128 bytes |
| EEPROM | 64 bytes |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| GPIO Pins | 6 |
| ADC | 10-bit, up to 6 channels |
| Timer/Counters | 16-bit TCA + TCA-based PWM |
| Communication | USART (LIN support), SPI, I2C/TWI |
| パッケージ | 8-SOIC (150 mil) |
| 実装タイプ | Surface Mount |
| 動作温度 | -40C to +105C (Industrial) |
| Functional Safety | FuSa qualified |
| RoHS ステータス | Compliant |
ATTINY212-SSN ピン構成
| ピン 1 | VDD — Power supply input, 1.8 V to 5.5 V |
| ピン 2 | PA6 / RESET / UPDI — General-purpose I/O, RESET, and UPDI programming/debug |
| ピン 3 | PA7 — General-purpose I/O |
| ピン 4 | PA0 — General-purpose I/O / TCA0 PWM output |
| ピン 5 | PA1 — General-purpose I/O / ADC input |
| ピン 6 | PA2 — General-purpose I/O |
| ピン 7 | PA3 — General-purpose I/O |
| ピン 8 | GND — Ground reference |
主な用途
ATTINY212-SSN の用途: 7 件s: Battery-Powered IoT Sensor Node, LED Lighting Controller, Capacitive Touch User Interface, Industrial Sensor Transmitter, Automotive Body Electronics, Home Automation Endpoint, Hobby and Educational Robotics.
Battery-Powered IoT Sensor Node
The ATTINY212-SSN suits battery-powered IoT sensor nodes because its 1.8 V to 5.5 V operating range supports direct connection to single-cell Li-ion (3.7 V) and 2x alkaline (3.0 V) cells without level shifters. The SleepWalking event system wakes peripherals while the CPU remains asleep, dropping active current into the microamp range and extending coin-cell runtime to years. Its 10-bit ADC with up to 6 channels reads temperature, humidity, or battery voltage directly, and the 6 GPIO pins drive status LEDs or wake buttons. USART with LIN support enables protocol translation to upstream radios or wired buses.
おすすめ
LED Lighting Controller
The ATTINY212-SSN drives LED lighting controllers with 16-bit TCA PWM outputs that generate high-resolution dimming curves without flicker. The wide 1.8 V to 5.5 V VDD range accepts 5 V or 3.3 V logic rails and tolerates battery variation in portable fixtures. Its 20 MHz core executes color-mixing and fade algorithms in real time, while the 6 GPIO pins handle button inputs, status LEDs, and PWM channels for RGB or tunable-white arrays. Functional Safety (FuSa) qualification supports commercial lighting that must meet safety standards.
おすすめ
Capacitive Touch User Interface
The ATTINY212-SSN implements capacitive touch user interfaces using the integrated mTouch peripheral, which scans touch buttons, sliders, or wheels without dedicated external ICs. The hardware multiplier accelerates touch-algorithm DSP, the 10-bit ADC reads proximity sensors, and the 2 KB Flash fits reference firmware for up to 6 touch channels. Its sub-microamp sleep modes are critical for battery-powered remotes and wall switches that spend most of their life in standby.
おすすめ
Industrial Sensor Transmitter
The ATTINY212-SSN reads and transmits industrial sensor signals in 4-20 mA loop-powered or 0-10 V transmitters. Its 10-bit ADC measures bridge sensors, RTDs, or thermocouples, while the USART with LIN support delivers digital protocols to PLCs. The -40C to +105C industrial temperature range covers harsh factory floors, and Functional Safety qualification supports safety-integrated designs up to SIL-2. With proper PCB layout, the device survives IEC 61000-4 ESD and surge transients common in industrial installations.
おすすめ
Automotive Body Electronics
The ATTINY212-SSN handles body-electronics tasks such as seat-control switches, mirror position memory, ambient lighting, and simple body controllers. Its Functional Safety qualification makes it acceptable for non-safety-critical automotive modules that nonetheless demand high reliability. The wide VDD range tolerates load-dump events when paired with proper TVS protection, and LIN support directly interfaces to the vehicle's body network. The 8-SOIC footprint simplifies layout in space-constrained door modules.
おすすめ
Home Automation Endpoint
The ATTINY212-SSN drives home automation endpoints such as smart switches, blinds controllers, thermostat peripherals, and security sensor pads. Its low-power SleepWalking modes support battery-powered wireless sensors that sleep for years between events. The 2 KB Flash fits Zigbee or Thread provisioning libraries, while the 128 bytes SRAM handles short message buffers. The 6 GPIO drive relays, read buttons, and pulse-count metering pulses without external logic.
おすすめ
Hobby and Educational Robotics
The ATTINY212-SSN fits hobby and educational robotics projects because it is inexpensive, easy to hand-solder in 8-SOIC, and programmable through UPDI with widely available tools. Its 6 GPIO drive small servos or stepper driver interfaces, the 16-bit TCA generates PWM signals for motor speed control, and the 10-bit ADC reads analog sensors. Arduino IDE and Microchip Studio support both beginners and advanced firmware development, making this part a versatile learning platform.
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: ATTINY212-SSN — 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 | ATTINY212-SSFR | ATTINY412-SSN | ATTINY214-SSN | ATTINY202-SSN | ATTINY1614-SSN |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-SOIC (150 mil) | 8-SOIC (150 mil) - same | 8-SOIC (150 mil) - same | 8-SOIC (150 mil) - same | 8-SOIC (150 mil) - same | 8-SOIC (150 mil) - same |
| Flash Memory | 2 KB | 2 KB - same | 4 KB (+100%) | 2 KB - same | 2 KB - same | 16 KB (+700%) |
| SRAM | 128 bytes | 128 bytes - same | 256 bytes (+100%) | 128 bytes - same | 128 bytes - same | 2 KB (+1500%) |
| EEPROM | 64 bytes | 64 bytes - same | 128 bytes (+100%) | 64 bytes - same | 64 bytes - same | 256 bytes (+300%) |
| Maximum Clock | 20 MHz | 20 MHz - same | 20 MHz - same | 20 MHz - same | 20 MHz - same | 20 MHz - same |
| GPIO Pins | 6 | 6 - same | 6 - same | 6 - same | 6 - same | 12 (4x4mm QFN) / varies by package |
| Series | tinyAVR 1-series | tinyAVR 1-series - same | tinyAVR 1-series - same | tinyAVR 1-series - same | tinyAVR 0-series - different | tinyAVR 1-series - same |
主な差別化要因
- Functional Safety (FuSa) qualified silicon （vs ATTINY202-SSN)
- Doubles memory headroom in pin-compatible upgrade （vs ATTINY412-SSN)
- Lower cost than automotive-grade equivalents （vs ATTINY1626-XU)
設計ノート
Estimated: at VDD = 3.3 V and CPU running 20 MHz active mode, the ATTINY212-SSN draws roughly 3-5 mA. In Power-Down sleep with peripherals disabled, the datasheet specifies currents below 1 uA at 25C. Place a 100 nF decoupling capacitor (X7R) within 3 mm of the VDD pin (pin 1) to suppress digital switching noise, and add a 10 uF bulk capacitor near the supply entry point. SleepWalking allows selected peripherals to wake the CPU only when needed, extending battery life in sensor applications.
The 8-SOIC (150 mil) footprint is industry-standard and easily hand-soldered or reflowed. Use a 0.1 uF bypass capacitor within 3 mm of VDD (pin 1) and a low-impedance ground pour connecting to pin 8. Keep UPDI/PA6 (pin 2) trace short for noise-free programming. For automotive or industrial designs, add a TVS diode and ferrite bead on the supply input to survive ESD and surge transients per IEC 61000-4. Maintain clearance between analog and digital sections to minimize ADC reference noise.
Pin 2 (PA6) serves triple duty as GPIO, RESET, and UPDI programming line; accidentally configuring it as a low-impedance output during programming will block UPDI access and require a high-voltage RESET to recover. Always initialize the MCU with pin 2 set to UPDI mode before any firmware runs. When migrating from ATTINY212-SSN to ATTINY412-SSN, update the toolchain device selection to match the new part number, even though firmware compiles without code changes. Verify VDD ramp time is within the datasheet's brown-out detector specifications during power-up.
コンプライアンス情報
RoHS and REACH compliant per Microchip product page. Functional Safety (FuSa) qualified per IEC 61508 SIL-2 capability, but not AEC-Q100 automotive qualified - consider ATTINY1626-XU for AEC-Q100 applications. Lead-free and halogen-free packaging.
