Microchip Technology ATTINY461-20MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $9.64 | $9.64 |
| 15+ | $2.22 | $33.30 |
| 25+ | $2.17 | $54.25 |
| 50+ | $2.05 | $102.50 |
| 100+ | $1.81 | $181.00 |
| N+ | $0.36 | 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 | 20MHz |
| Connectivity | USI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 16 |
| Program Memory Size | 4KB (2K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 256 x 8 |
| RAM Size | 256 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | A/D 11x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 32-VQFN (5x5) |
| Package / Case | 32-VFQFN Exposed Pad |
| ROHS |
The ATTINY461-20MU is an 8-bit AVR microcontroller from Atmel, delivering 20MHz performance in a compact 32-VFQFN package. With 4KB flash and 256 bytes RAM, it integrates essential features like brown-out detection, power-on reset, PWM, and a watchdog timer. Its 2.7V to 5.5V supply range supports both 3.3V and 5V systems, making it ideal for space-constrained embedded control applications.
- High-speed AVR core: 20MHz execution for real-time control tasks.
- Wide voltage range: 2.7V-5.5V simplifies power supply design.
- Integrated safety features: BOD and POR enhance system reliability.
- Compact QFN package: Saves PCB space for miniaturized designs.
Compact Sensor Nodes
The 32-VFQFN package and 20MHz AVR core enable dense sensor interfaces in IoT edge devices, with PWM for actuator control.
Battery-Powered Controllers
Operating from 2.7V to 5.5V, it directly runs from 3V coin cells or 5V USB, while WDT ensures reliable wake-up scheduling.
Motor Control Hobby Kits
With 4KB flash and hardware PWM, it handles small DC motor speed control with minimal external components.
Industrial Signal Conditioning
Brown-out detection and POR protect against supply glitches in 24V industrial environments when paired with level shifters.
Automotive Aftermarket Modules
The -40°C to 85°C range suits cabin-mounted modules like window controllers, using the 20MHz speed for fast response.
LED Lighting Drivers
PWM channels drive constant-current LED drivers, while the small footprint fits into bulb housings.
- Q: What is the maximum operating frequency of the ATTINY461-20MU?
- A: The ATTINY461-20MU operates at up to 20MHz with a supply voltage range of 2.7V to 5.5V.
- Q: What package is the ATTINY461-20MU available in?
- A: It comes in a 32-VFQFN exposed pad package, suitable for compact PCB designs.
- Q: Does the ATTINY461-20MU include a watchdog timer?
- A: Yes, it features a Watchdog Timer (WDT) along with Brown-out Detection and Power-On Reset.
- Q: What is the program memory size?
- A: It has 4KB of in-system programmable flash memory (2K x 16 bits).
- Q: What is the maximum operating frequency of the ATTINY461-20MU?
- A: The ATTINY461-20MU operates at up to 20MHz with a supply voltage range of 2.7V to 5.5V.
- Q: What package is the ATTINY461-20MU available in?
- A: It comes in a 32-VFQFN exposed pad package, suitable for compact PCB designs.
- Q: Does the ATTINY461-20MU include a watchdog timer?
- A: Yes, it features a Watchdog Timer (WDT) along with Brown-out Detection and Power-On Reset.
- Q: What is the program memory size?
- A: It has 4KB of in-system programmable flash memory (2K x 16 bits).

ATTINY461-20MU.pdf