Microchip Technology ATTINY85-20PU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.58 | $1.58 |
| 15+ | $1.53 | $22.95 |
| 25+ | $1.49 | $37.25 |
| 50+ | $1.41 | $70.50 |
| 100+ | $1.25 | $125.00 |
| N+ | $0.25 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATtiny, Functional Safety (FuSa) |
| Packaging | Tube | |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | USI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 6 |
| Program Memory Size | 8KB (4K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 512 x 8 |
| RAM Size | 512 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | A/D 4x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Through Hole |
| Supplier Device Package | 8-PDIP |
| Package / Case | 8-DIP (0.300", 7.62mm) |
| ROHS |
The Microchip ATTINY85-20PU is a versatile 8-bit AVR microcontroller in a through-hole 8-DIP package. It delivers 20MHz performance with 8KB flash and 512 bytes SRAM, operating from 2.7V to 5.5V. With PWM, brown-out detection, and a watchdog timer, it suits prototyping and embedded control applications.
- Through-Hole Convenience: DIP package enables easy breadboarding and manual soldering for rapid prototyping.
- High Speed for Size: 20MHz in an 8-pin package provides ample processing for real-time control loops.
- Generous Memory: 8KB flash supports moderately complex firmware without external storage.
- Robust Analog: 4-channel 10-bit ADC simplifies sensor integration in compact designs.
DIY Electronics Projects
The 8-pin DIP package is breadboard-friendly, making it perfect for hobbyist LED cubes or simple robots, with 20MHz speed for real-time effects.
Power Tool Accessories
With 2.7V minimum operation, it monitors battery voltage in cordless drills, triggering low-battery warnings via PWM-driven buzzers.
Smart Lighting Systems
Its 8KB flash stores complex fading patterns for RGB LED strips, while the 20MHz core ensures smooth 16-bit PWM updates.
Security Alarm Sensors
The watchdog timer and brown-out detection maintain reliable operation in PIR motion detectors, with the 512B SRAM buffering event logs.
Educational Kits
Through-hole DIP pins simplify soldering for students learning embedded C, with the internal oscillator eliminating crystal components.
Portable Game Controllers
It reads joystick analog inputs via its 4-channel ADC and sends button states over serial, running at 20MHz for minimal latency.
- Q: What is the maximum clock frequency of the ATTINY85-20PU?
- A: It operates at up to 20MHz with a supply voltage between 2.7V and 5.5V.
- Q: How much flash memory does it have?
- A: It provides 8KB of flash memory and 512 bytes of SRAM for program and data storage.
- Q: What package is this available in?
- A: It comes in an 8-pin DIP package (0.300" width), suitable for through-hole prototyping.
- Q: Does it support PWM output?
- A: Yes, it has 2 PWM channels with high-resolution timing for motor or LED control.
- Q: What is the maximum clock frequency of the ATTINY85-20PU?
- A: It operates at up to 20MHz with a supply voltage between 2.7V and 5.5V.
- Q: How much flash memory does it have?
- A: It provides 8KB of flash memory and 512 bytes of SRAM for program and data storage.
- Q: What package is this available in?
- A: It comes in an 8-pin DIP package (0.300" width), suitable for through-hole prototyping.
- Q: Does it support PWM output?
- A: Yes, it has 2 PWM channels with high-resolution timing for motor or LED control.

ATTINY85-20PU.pdf