ATTINY4-TSHR - 12MHz 8-Bit AVR MCU | Microchip
料号： ATTINY4-TSHR ✓ 量产中ATTINY4-TSHR 概述
What is an 8-bit microcontroller? An MCU is an integrated circuit containing a processor core, program memory, data memory, I/O ports, and embedded peripherals. The AVR enhanced RISC architecture uses single-clock-cycle instruction execution, allowing the ATTINY4-TSHR to provide useful control throughput in a very small package. In the hierarchy of electronic components, it belongs to the microcontroller, embedded processor, and semiconductor categories.
Key verified features include 512 bytes of Flash memory, 32 bytes of SRAM, a 12 MHz operating frequency, and 8-bit AVR processing. Distributor listings identify the device as a 6-pin SOT-23-6 part and indicate support for 2.5 V, 3.3 V, and 5 V supply variants. Its small package makes it suitable for board-constrained products, but designers should verify the exact electrical limits and pin functions against the manufacturer documentation before layout or firmware release.
The ATTINY4-TSHR is positioned for simple control logic rather than high-throughput embedded processing. Its limited memory footprint favors compact programs, state machines, debounce logic, indicators, and basic timing functions. The device can be evaluated for simple sensor conditioning, low-speed communication, actuator control, and auxiliary system functions where the application does not require large buffers or complex networking.
Typical design work should begin by confirming the supply voltage, oscillator configuration, I/O direction, reset behavior, and programming interface. Because the package has only six pins, pin multiplexing and exposed-pad or programming considerations require careful schematic review. Use the manufacturer datasheet as the authoritative source for pin names, electrical limits, programming requirements, and operating conditions.
A key selection consideration is that ATTINY4-TSHR is a highly constrained MCU with only 512 bytes of Flash and 32 bytes of SRAM. Choose it when the control task is simple and board area is more important than memory capacity or peripheral breadth. For designs needing larger firmware storage, more SRAM, or a broader peripheral set, compare the ATtiny family or another microcontroller family rather than assuming this part can scale.
This page combines verified distributor specifications, manufacturer and datasheet references, application guidance, and same-family comparison information to support practical selection. Confirm the exact orderable configuration, lifecycle status, and current commercial terms with Microchip or an authorized distributor before committing a production design.
直接替换替代料： ATTINY4-TSHR ——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： ATTINY4-TSHR （相同外形与封装尺寸） ——差异在于 Package, ADC, SRAM, Mounting Type, Flash Memory.
ATTINY5-TSHR
✅ 直接替换联系询价
查看数据手册 →ATTINY9-TSHR
✅ 直接替换📋 参考替代料（不在目录中）
ATTINY10-TSHR
✅ 直接替换📋 参考替代料（不在目录中）
ATTINY4-TS8R
✅ 直接替换联系询价
查看数据手册 →ATTINY412-SSF
✅ 直接替换联系询价
查看数据手册 →N76E003AT20
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →ATTINY4-TSHR 最大额定值与电气特性
| Product Type | 8-bit AVR RISC microcontroller |
| 最大时钟频率 | 12 MHz |
| Program Memory | 512 bytes Flash |
| Program Memory Organization | 256 x 16 words |
| SRAM | 32 bytes |
| Supply Voltage Variants | 2.5 V, 3.3 V, and 5 V |
| 封装 | 6-pin SOT-23-6 |
| Architecture | AVR enhanced RISC |
| General-Purpose I/O | 12 lines on the ATtiny4 family device |
| Working Registers | 32 general-purpose working registers |
| Timer/Counter | 8-bit timer/counter with two PWM channels on the ATtiny4 family device |
| 安装类型 | Surface Mount |
| Programming | In-system programmable Flash |
| Internal Oscillator | 8 MHz calibrated internal oscillator |
| Power Modes | Four software-selectable power modes |
| ADC | Not available on ATTINY4 according to verified comparison data |
ATTINY4-TSHR 6-pin sot-23-6 引脚配置指南
ATTINY4-TSHR（6-pin sot-23-6 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： ATTINY4-TSHR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATTINY4-TSHR 适用于 6 应用s: Simple Push-Button Control, LED Indicator and Status Control, Simple Sensor Signal Conditioning, Low-Speed Auxiliary Actuator Control, Compact Appliance Control, Factory-Programmable Compact Product.
Simple Push-Button Control
ATTINY4-TSHR fits compact user-interface logic where several push buttons, LEDs, or discrete control signals must be combined in a small board area. The 8-bit AVR core can implement debounce states, press timing, and output-control logic without a larger microcontroller package. Its 512 bytes of Flash and 32 bytes of SRAM encourage table-driven or highly compact firmware, while the 6-pin SOT-23-6 footprint supports dense layouts. The key design check is pin assignment: confirm the exact six-pin mapping, pull-up requirements, and output drive limits in the manufacturer datasheet before finalizing the PCB.
推荐
LED Indicator and Status Control
ATTINY4-TSHR is appropriate for centralized LED status logic in compact consumer, appliance, or accessory products. A small AVR program can encode operating states, blink patterns, fault indications, and button-driven status changes while occupying only a six-pin footprint. The device’s limited memory makes fixed-state logic more realistic than buffering or complex animation, and its low-power MCU positioning helps reduce board complexity. Because LED current, supply voltage, and available I/O pins constrain the design, use the verified 12 MHz and 512-byte Flash data only as a starting point and confirm absolute pin and current limits from Microchip documentation.
推荐
Simple Sensor Signal Conditioning
ATTINY4-TSHR can supervise discrete sensor signals when the external sensor produces logic-level outputs rather than requiring on-chip ADC conversion. The verified comparison data identifies the absence of an ADC as a key distinction, so analog sensing should be performed by another component or MCU. For thresholded digital sensors, the ATTINY4-TSHR can implement debounce, delay, polarity conversion, fault flags, and simple actuator commands. Keep the firmware within the 512-byte Flash and 32-byte SRAM limits, and account for any sensor pull-ups or level-shifting components in the overall power and board-area budget.
推荐
Low-Speed Auxiliary Actuator Control
ATTINY4-TSHR is suitable for small auxiliary actuator functions such as latches, relays, indicators, and simple step sequences where the system does not require high-speed control loops. The 12 MHz maximum clock provides a deterministic execution rate for basic timer-based sequencing, while the small SOT-23-6 package limits PCB footprint. Inductive loads, motor mechanisms, or high-current outputs still require external drivers and protection; the MCU should command those stages through defined logic levels. Confirm the exact I/O voltage, current, and timing limits in the manufacturer datasheet before designing the power stage.
推荐
Compact Appliance Control
ATTINY4-TSHR can serve as a compact controller in appliances and small embedded products where the primary requirements are state management, timers, and discrete outputs. Its 512-byte Flash and 32-byte SRAM make it appropriate for tightly scoped control logic, not a full application processor. The AVR architecture and 12 MHz maximum clock support straightforward firmware, while the six-pin package helps reduce board size. Designers should define startup behavior and fail-safe outputs before relying on the MCU, and should verify reset, oscillator, programming, and supply requirements against the exact Microchip documentation for production.
推荐
Factory-Programmable Compact Product
ATTINY4-TSHR can be evaluated for products where a factory-programmed controller reduces field configuration requirements or supports a fixed product behavior. The verified Microchip Direct result identifies ATTINY4-TSHR as factory programmable, which is relevant to production provisioning. The design still needs a defined programming fixture, programming protocol, fuse or lock configuration, and test strategy for end-of-line verification. Because the supplied records do not include the exact programming voltage, fuse map, or production timing, these details must be obtained from Microchip before writing a manufacturing procedure.
推荐
工程参考数据： ATTINY4-TSHR ——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 | ATTINY5-TSHR | ATTINY9-TSHR | ATTINY10-TSHR | ATTINY4-TS8R | N76E003AT20 |
|---|---|---|---|---|---|---|
| Package | 6-pin SOT-23-6 | 6-pin SOT-23-6 | 6-pin SOT-23-6 | 6-pin SOT-23-6 | 6-pin SOT-23-6 | SOT-23-6 package family |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
关键差异点
- Very small six-pin MCU footprint （对比 N76E003AT20)
- Constrained 512-byte Flash target （对比 ATTINY10-TSHR)
- Explicit absence of ADC （对比 ATTINY5-TSHR)
设计说明
Validate the exact supply limits and current consumption for the selected ATTINY4-TSHR orderable variant before powering external loads. The verified listings mention 2.5 V, 3.3 V, and 5 V supply variants, but those snippets do not replace the datasheet’s absolute maximum and operating tables. Keep GPIO loads, pull-ups, LEDs, and sensor bias currents separate from the MCU supply budget, and ensure every connected signal remains within the verified voltage limits.
Design the six-pin SOT-23-6 footprint from the manufacturer mechanical drawing and verify pin numbering against the exact package variant. Because the supplied data confirms the package but does not provide the complete pin map, do not assign nets from distributor images alone. Reserve a programming footprint if the product requires field programming, provide adequate decoupling near the supply pins, and keep the layout compact enough for reliable assembly without violating the manufacturer’s land-pattern guidance.
Do not design analog measurement into the ATTINY4-TSHR based on assumptions from larger ATtiny devices. The verified comparison data identifies the absence of an ADC as a distinguishing feature of ATTINY4. Also treat the 512-byte Flash and 32-byte SRAM limits as hard design constraints. Estimate program and data requirements early, avoid interrupt handlers or buffering features that exceed SRAM, and confirm watchdog, reset, fuse, and power-mode behavior in the manufacturer documentation before firmware release.
合规信息
The supplied verified web data does not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements for ATTINY4-TSHR. Obtain these confirmations from Microchip or the exact manufacturer datasheet before making compliance claims.
