ATTINY48-AU - 12MHz 8-Bit AVR MCU | Microchip
部品番号: ATTINY48-AU ✓ 生産中ATTINY48-AU 概要
A microcontroller is a programmable system-on-chip that executes firmware, reads inputs, controls outputs, and manages embedded-system timing. The ATTINY48 belongs to the ATtiny family of 8-bit AVR microcontrollers, within the broader embedded-processing and semiconductor hierarchy. Its picoPower architecture targets efficient low-voltage operation in compact control products.
The verified device data identifies 8-bit and 16-bit timer/counters, a 16-bit timer/counter with PWM, a 10-bit analog-to-digital converter, SPI, and debugWIRE on-chip debugging. These peripherals support motor and LED control, sensor acquisition, serial communication, and firmware debugging without requiring separate components for each function. The manufacturer product page specifically lists 4 KB of ISP Flash, 64 B EEPROM, and 256 B SRAM for the ATtiny48 family.
Typical applications include compact industrial controls, sensor interfaces, LED and motor-control nodes, low-voltage embedded modules, and small consumer devices. The 1.8 V to 5.5 V operating range allows integration across common low-voltage systems, while the 32-TQFP package supports surface-mount manufacturing.
Designers should preserve the ATtiny48 pin assignments, power requirements, programming interface, and clock configuration when creating a PCB footprint. Because the supplied verified data does not expose a complete manufacturer pinout table, individual pin names are not asserted here. Verify the package drawing and datasheet before final layout release.
ドロップイン代替品: ATTINY48-AU — 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。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストATTINY48-AU 最大定格＆電気的特性
| Product Type | 8-bit AVR RISC-based microcontroller |
| Architecture | AVR 8-bit RISC |
| 最大クロック周波数 | 12 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Throughput | Up to 12 MIPS at 12 MHz |
| Flash Memory | 4 KB ISP Flash |
| EEPROM | 64 bytes |
| SRAM | 256 bytes |
| ADC Resolution | 10-bit |
| Timer/Counter 0 | 8-bit timer/counter |
| Timer/Counter 1 | 16-bit timer/counter with PWM |
| Serial Interface | SPI |
| Debug Interface | debugWIRE |
| パッケージ | 32-TQFP, 7 mm × 7 mm |
| 実装タイプ | Surface mount |
| Core Architecture | picoPower AVR |
| Programming | In-system programming |
| Product Family | ATtiny |
| Manufacturer Product Page Status | Active listing |
ATTINY48-AU 32-tqfp, 7 mm × 7 mm ピン配置ガイド
ATTINY48-AU (32-tqfp, 7 mm × 7 mm 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: ATTINY48-AU.
詳細は データシート をご参照ください。
主な用途
ATTINY48-AU の用途: 6 件s: Compact Industrial Sensor Interface, Low-Voltage Motor and LED Control, Embedded Communication Module, Battery-Powered IoT Sensor Node, Consumer Appliance Control Panel, Programmable Logic and Timing Module.
Compact Industrial Sensor Interface
The ATTINY48-AU is suitable for small sensor-interface nodes that need local acquisition and control without a higher-memory processor. Its verified 10-bit ADC supports analog sensor conditioning, while SPI provides a path to a sensor, transceiver, or external peripheral. The 1.8 V to 5.5 V operating range supports both low-voltage and common 3.3 V or 5 V system rails. The 256 bytes of SRAM is adequate for short sampled-data workflows, but firmware must avoid unnecessary buffers. The 32-TQFP package also provides a compact surface-mount footprint for space-constrained industrial electronics.
おすすめ
Low-Voltage Motor and LED Control
The ATTINY48-AU can serve as the local controller in a small LED or motor-control module where a 12 MHz AVR core provides deterministic timing and the verified 16-bit timer/counter with PWM supports waveform generation. Its operating range of 1.8 V to 5.5 V permits integration with low-voltage power systems, while the ADC can monitor a current or supply signal when the application requires feedback. Designers should account for the limited 256 bytes of SRAM and add suitable driver transistors or MOSFETs rather than driving loads directly from MCU pins.
おすすめ
Embedded Communication Module
The ATTINY48-AU is appropriate for a compact embedded module that needs a serial peripheral and protocol handling alongside basic control logic. Its verified SPI interface can connect to a radio, sensor, memory, or other SPI-compatible device, and debugWIRE provides a low-pin-count debugging route during development. The 4 KB Flash footprint favors concise firmware, making the device suitable for gateways, remote controls, and small peripheral nodes. SPI clocking, interrupt latency, and electrical limits should be checked against the connected peripheral and the ATtiny48 operating conditions.
おすすめ
Battery-Powered IoT Sensor Node
The ATTINY48-AU is a fit for a small battery-powered IoT sensing node when the design prioritizes low component count and a 1.8 V to 5.5 V operating range. The 10-bit ADC can digitize analog sensor outputs, while the 8-bit AVR core handles local thresholding, sampling, and actuator-control logic. The manufacturer identifies picoPower technology and up to 12 MIPS throughput, but actual battery life depends on the selected clock, sleep behavior, peripheral use, and board leakage. Use the datasheet to verify sleep-mode and operating-current data before finalizing the power budget.
おすすめ
Consumer Appliance Control Panel
The ATTINY48-AU can support a compact appliance or control-panel submodule that combines button or sensor inputs with LED indication and simple actuator sequencing. Its verified AVR architecture and timer peripherals support periodic control tasks, while the ADC can monitor analog feedback from a potentiometer or sensing network. The 32-TQFP package is practical for automated surface-mount assembly and keeps the controller footprint compact. Firmware must be structured around the limited SRAM and EEPROM, and safety-critical appliance functions require suitable protection and isolation beyond the MCU.
おすすめ
Programmable Logic and Timing Module
The ATTINY48-AU is suitable for a small programmable timing or logic module where deterministic 8-bit control is more appropriate than a high-performance application processor. Its 12 MHz maximum clock supports straightforward event sequencing, debounce logic, pulse generation, and supervisory functions. The 8-bit and 16-bit timers, PWM capability, and interrupt-driven architecture provide the core resources for such tasks. For designs requiring extensive logging, large protocol stacks, or multiple high-speed peripherals, select a higher-capacity MCU and validate the complete memory and peripheral allocation.
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: ATTINY48-AU — 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 |
|---|---|
| Package | 32-TQFP, 7 mm × 7 mm |
| Brand | Microchip Technology |
| Architecture | 8-bit AVR RISC |
| Maximum Frequency | 12 MHz |
| Operating Voltage | 1.8 V to 5.5 V |
| Flash Memory | 4 KB ISP Flash |
| EEPROM | 64 bytes |
| SRAM | 256 bytes |
| ADC | 10-bit ADC |
| Serial Interface | SPI |
| Debug Interface | debugWIRE |
| Timer Resources | 8-bit timer/counter and 16-bit timer/counter with PWM |
主な差別化要因
- Compact 8-bit AVR controller with integrated mixed peripherals （vs ATTINY48-AUR)
- 12 MHz throughput in a compact 32-TQFP package （vs ATTINY28L-4AC)
- 4 KB ISP Flash with AVR ecosystem support （vs ATtiny48-MU)
設計ノート
The verified operating range is 1.8 V to 5.5 V, so validate the supply rail against the selected clock speed and peripheral configuration. Place the required local decoupling close to the device power pins and keep analog and digital return paths controlled. Because the supplied data does not include application-current or regulator-dropout values, do not assume a specific supply headroom or regulator topology without consulting the manufacturer datasheet.
Use the manufacturer 32-TQFP package drawing to create the PCB footprint, including pin-1 orientation, lead pitch, pad length, and exposed or non-exposed thermal structure if applicable. The verified data confirms the 32-TQFP 7 mm × 7 mm package but does not provide the complete pin table, so release the layout only after checking the official package drawing and electrical pin assignments.
Do not substitute a functionally similar ATtiny device based only on memory size or family name. A valid replacement must match the exact package, pinout, voltage range, clock requirements, peripheral allocation, programming interface, and debug behavior. The supplied cross-reference results do not establish a qualified drop-in replacement, so production substitution should wait for manufacturer or distributor cross-reference evidence and a hardware review.
Keep SPI traces short and controlled, especially when connecting the ATTINY48-AU to an external sensor or transceiver. Route sensitive analog inputs away from switching nodes and high-current LED or motor paths, and provide a quiet ground reference for the 10-bit ADC. The verified material does not specify ADC input count or exact pin locations, so these layout actions must be coordinated with the final pin assignment.
コンプライアンス情報
The supplied verified data does not include RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. AEC-Q100 status is not applicable based on the provided product description, which does not identify an automotive-qualified variant.
