Microchip Technology ATTINY841-MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.41 | $1.41 |
| 15+ | $1.36 | $20.40 |
| 25+ | $1.33 | $33.25 |
| 50+ | $1.26 | $63.00 |
| 100+ | $1.11 | $111.00 |
| N+ | $0.22 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATtiny |
| Packaging | Tray | |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | PWM |
| Number of I/O | 12 |
| Program Memory Size | 8KB (8K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 512 x 8 |
| RAM Size | 512 x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.7V ~ 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-QFN-EP (4x4) |
| Package / Case | 20-WFQFN Exposed Pad |
| ROHS |
The Microchip ATTINY841 is a low-power AVR 8-bit MCU in a 20-WFQFN package. It operates from 1.7V to 5.5V at up to 16MHz. With 8KB flash and 512 bytes RAM, it includes PWM peripherals. Its ultra-low voltage capability makes it ideal for battery-powered and portable applications.
- Ultra-low 1.7V operation extends battery life in portable devices.
- Compact 20-WFQFN package saves PCB area for miniaturized products.
- 8KB flash provides ample code space for complex sensor algorithms.
- PWM channels enable direct drive of LEDs and small motors without extra ICs.
Wearable Health Monitors
The 1.7V minimum voltage allows direct coin-cell operation, while 16MHz speed processes heart-rate sensor data in fitness bands.
IoT Sensor Nodes
With 512B RAM and 8KB flash, it can buffer environmental data and transmit via external RF modules in smart agriculture.
Battery Management Systems
Its low-voltage operation and PWM outputs enable cell balancing in single-cell Li-ion protection circuits.
Consumer Electronics Haptics
The small QFN package fits inside game controllers, generating vibration patterns via PWM-driven actuators.
Portable Medical Devices
Extended temperature range and low power make it suitable for glucose meters and digital thermometers.
Smart Home Sensors
It can manage PIR motion detectors and transmit alerts over Zigbee, with 16MHz handling protocol timing.
- Q: What is the supply voltage range?
- A: It operates from 1.7V to 5.5V, ideal for low-power and battery applications.
- Q: What package is this?
- A: It comes in a 20-WFQFN exposed pad package for compact designs.
- Q: How much flash memory does it have?
- A: It has 8KB (8K x 8) of flash program memory.
- Q: Does it support PWM?
- A: Yes, it includes PWM channels for driving LEDs or motors.
- Q: What is the supply voltage range?
- A: It operates from 1.7V to 5.5V, ideal for low-power and battery applications.
- Q: What package is this?
- A: It comes in a 20-WFQFN exposed pad package for compact designs.
- Q: How much flash memory does it have?
- A: It has 8KB (8K x 8) of flash program memory.
- Q: Does it support PWM?
- A: Yes, it includes PWM channels for driving LEDs or motors.

ATTINY841-MU.pdf