Microchip Technology ATTINY40-SU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.27 | $1.27 |
| 15+ | $1.23 | $18.45 |
| 25+ | $1.21 | $30.25 |
| 50+ | $1.14 | $57.00 |
| 100+ | $1.01 | $101.00 |
| N+ | $0.20 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATtiny |
| Packaging | Tube | Tube |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 12MHz |
| Connectivity | I2C, SPI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 18 |
| Program Memory Size | 4KB (2K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 256 x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 12x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 20-SOIC |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| ROHS |  |
The Microchip ATTINY40-SU is an 8-bit AVR microcontroller in a 20-pin SOIC package. It operates from 1.8V to 5.5V and runs at up to 12MHz. It offers 4KB of flash memory and 256 bytes of SRAM. Integrated features include Brown-out Detect/Reset, Power-on Reset, PWM, and Watchdog Timer. The operating temperature range is -40°C to 85°C, suitable for commercial and industrial applications.
- Larger memory (4KB): Supports more complex firmware than smaller ATtiny parts.
- 20-pin package: Provides more I/O pins for peripheral interfacing.
- Wide voltage range: 1.8V-5.5V for flexible power supply design.
- Multiple integrated peripherals: BOD, POR, PWM, and WDT reduce external component count.
Industrial Process Controllers
The 4KB flash and 12MHz speed provide enough resources for PID control loops in temperature or pressure controllers, while the 20-pin SOIC offers multiple I/O for interface.
Automotive Body Electronics
With an 85°C rating, it is suitable for cabin electronics like window lift controllers or mirror adjustment modules, where multiple PWM channels are needed.
Home Appliance Control Boards
The rich I/O count and PWM capabilities allow it to manage washing machine timers, dishwasher valves, and display drivers in a single chip.
Robotics Hobby Kits
Its 4KB memory can store complex movement sequences, and the 12MHz clock provides smooth servo control for educational robots.
Power Supply Monitoring
The brown-out detection ensures safe shutdown in power supply units, while the ADC (if available) can monitor output voltages.
Lighting Control Panels
Multiple PWM channels can drive RGB LED strips or dimmable fluorescent ballasts in commercial lighting systems.
- Q: What is the program memory size of the ATTINY40-SU?
- A: It has 4KB of flash memory (2K x 16) and 256 bytes of SRAM.
- Q: What is the maximum operating frequency?
- A: It runs at up to 12MHz.
- Q: What package is this MCU available in?
- A: It comes in a 20-pin SOIC package (0.295" width).
- Q: What is the operating temperature range?
- A: It operates from -40°C to 85°C.
- Q: Does it include a watchdog timer?
- A: Yes, it includes WDT, POR, PWM, and Brown-out Detect/Reset.
ATTINY40-SU.pdf
- Q: What is the program memory size of the ATTINY40-SU?
- A: It has 4KB of flash memory (2K x 16) and 256 bytes of SRAM.
- Q: What is the maximum operating frequency?
- A: It runs at up to 12MHz.
- Q: What package is this MCU available in?
- A: It comes in a 20-pin SOIC package (0.295" width).
- Q: What is the operating temperature range?
- A: It operates from -40°C to 85°C.
- Q: Does it include a watchdog timer?
- A: Yes, it includes WDT, POR, PWM, and Brown-out Detect/Reset.
