ATTINY4-TSHR - 12MHz 8-Bit AVR MCU | Microchip
MPN： ATTINY4-TSHR ✓ 啟用中ATTINY4-TSHR 概覽
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.
直接替換替代品，適用於 ATTINY4-TSHR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATTINY4-TSHR （相同外形與佔位） — 差異在於 Package, ADC, SRAM, Mounting Type, Flash Memory.
ATTINY5-TSHR
✅ 直接替換聯絡詢價
查看資料表 →ATTINY9-TSHR
✅ 直接替換📋 參考替代品（不在目錄中）
ATTINY10-TSHR
✅ 直接替換📋 參考替代品（不在目錄中）
ATTINY4-TS8R
✅ 直接替換聯絡詢價
查看資料表 →ATTINY412-SSF
✅ 直接替換聯絡詢價
查看資料表 →N76E003AT20
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATTINY4-TSHR 最大額定值與電氣特性
| Product Type | 8-bit AVR RISC microcontroller |
| 最大時脈頻率 | 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 |
| 封裝 | 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 |
| 安裝類型 | 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 腳位配置指南
ATTINY4-TSHR（6-pin sot-23-6 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATTINY4-TSHR.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATTINY4-TSHR 適用於 6 應用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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
工程參考資料，適用於 ATTINY4-TSHR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- Very small six-pin MCU footprint (對比N76E003AT20)
- Constrained 512-byte Flash target (對比ATTINY10-TSHR)
- Explicit absence of ADC (對比ATTINY5-TSHR)
設計說明
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.
合規資訊
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.
