AVR 8-Bit bit Microcontroller AVR? ATtiny Series ATTINY85 8 PIN 20MHz 5V 8-DIP (0.300, 7.62mm) ATtiny85 is a high performance, low power 8-bit microcontroller based on Advanced RISC Architecture. It has 8 Kbytes of In-System Programmable Flash and is popular because of its compact size and its features.
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Apr 8, 2022
Scott Nelly
What is a microcontroller and how microcontroller works
AVR 8-Bit bit Microcontroller AVR® ATtiny Series ATTINY85 8 PIN 20MHz 5V 8-DIP (0.300, 7.62mm)
ATtiny85 is a high performance, low power 8-bit microcontroller based on Advanced RISC Architecture. It has 8 Kbytes of In-System Programmable Flash and is popular because of its compact size and its features. Furthermore, Huge range of Semiconductors, Capacitors, Resistors and IcS in stock. Welcome RFQ.
ATTINY85-20PU
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.88345 | $3.88 |
| 10+ | $3.66363 | $36.64 |
| 100+ | $3.45625 | $345.63 |
| 500+ | $3.26062 | $1630.31 |
| 1000+ | $3.07605 | $3076.05 |
The following figure is the diagram of ATTINY85 Pinout.
Pinout
The followings are ATTINY85 Symbol, Footprint, and 3D Model.
PCB Symbol
PCB Footprint
3D Model
● ATTINY85 is cheap and easily available for experimenting
● ATTINY85 has many reference data available making it easy to work with.
● Also ATTINY85 provides many features in lesser pins.
● With program memory of 8Kbytes the controller has satisfying memory for many applications.
● With various POWER SAVE modes it can work on battery operated applications.
● With its small and compact size it can be put in many small boards.
● With watchdog timer and other features the use on ATTINY85 is further promoted.
● High Performance, Low Power AVR® 8-Bit Microcontroller
● Advanced RISC Architecture
◆ 120 Powerful Instructions – Most Single Clock Cycle Execution
◆ 32 x 8 General Purpose Working Registers
◆ Fully Static Operation
● Non-volatile Program and Data Memories
◆ 8K Bytes of In-System Programmable Program Memory Flash
★ Endurance: 10,000 Write/Erase Cycles
◆ 512 Bytes In-System Programmable EEPROM
★ Endurance: 100,000 Write/Erase Cycles
◆ 512 Bytes Internal SRAM
◆ Programming Lock for Self-Programming Flash Program and EEPROM Data Security
● Peripheral Features
◆ 8-bit Timer/Counter with Prescaler and Two PWM Channels
◆ 8-bit High Speed Timer/Counter with Separate Prescaler
★ 2 High Frequency PWM Outputs with Separate Output Compare Registers
★ Programmable Dead Time Generator
◆ USI – Universal Serial Interface with Start Condition Detector
◆ 10-bit ADC
★ 4 Single Ended Channels
★ 2 Differential ADC Channel Pairs with Programmable Gain (1x, 20x)
★ Temperature Measurement
◆ Programmable Watchdog Timer with Separate On-chip Oscillator
◆ On-chip Analog Comparator
● Special Microcontroller Features
◆ debugWIRE On-chip Debug System
◆ In-System Programmable via SPI Port
◆ External and Internal Interrupt Sources
◆ Low Power Idle, ADC Noise Reduction, and Power-down Modes
◆ Enhanced Power-on Reset Circuit
◆ Programmable Brown-out Detection Circuit
◆ Internal Calibrated Oscillator
● I/O: Six Programmable I/O Lines
● Operating Voltage: 2.7 - 5.5V
● Speed Grade: 0 – 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V
● Industrial Temperature Range
● Low Power Consumption
◆ Active Mode: 1 MHz, 1.8V: 300 µA
◆ Power-down Mode: 0.1 µA at 1.8V
Microchip Technology ATTINY85-20PU technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology ATTINY85-20PU.
Microchip Technology ATTINY85-20PU technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology ATTINY85-20PU.
| Product Attribute | Attribute Value | |
|---|---|---|
| Factory Lead Time | 6 Weeks | |
| Contact Plating | Tin | |
| Mount | Through Hole | |
| Mounting Type | Through Hole | |
| Package / Case | 8-DIP (0.300, 7.62mm) | |
| Number of Pins | 8Pins | |
| Data Converters | A/D 4x10b | |
| Number of I/Os | 6I/Os | |
| Watchdog Timers | Yes | |
| Operating Temperature | -40°C~85°C TA | |
| Packaging | Tube | |
| Series | AVR® ATtiny | |
| Published | 1997 | |
| JESD-609 Code | e3 | |
| Pbfree Code | yes | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 8Terminations | |
| Termination | Through Hole |
| Product Attribute | Attribute Value | |
|---|---|---|
| Terminal Position | DUAL | |
| Supply Voltage | 5V | |
| Frequency | 20MHz | |
| Base Part Number | ATTINY85 | |
| Supply Voltage-Max (Vsup) | 5.5V | |
| Power Supplies | 3/5V | |
| Interface | SPI | |
| Memory Size | 8kB | |
| Oscillator Type | Internal | |
| RAM Size | 512 x 8 | |
| Voltage - Supply (Vcc/Vdd) | 2.7V~5.5V | |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | |
| Core Processor | AVR | |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | |
| Program Memory Type | FLASH | |
| Core Size | 8-Bit | |
| Program Memory Size | 8KB 4K x 16 | |
| Connectivity | USI | |
| Bit Size | 8 |
| Product Attribute | Attribute Value | |
|---|---|---|
| Access Time | 20 μs | |
| Has ADC | YES | |
| DMA Channels | NO | |
| Data Bus Width | 8b | |
| PWM Channels | YES | |
| Number of Timers/Counters | 2Timers/Counters | |
| EEPROM Size | 512 x 8 | |
| Number of Programmable I/O | 6Programmable I/Os | |
| Number of ADC Channels | 4ADC Channels | |
| Number of I2C Channels | 1I2C Channel | |
| Height | 4.953mm | |
| Length | 10.16mm | |
| Width | 7.112mm | |
| REACH SVHC | No SVHC | |
| Radiation Hardening | No | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
The following is the Block Diagram of ATTINY85.
Block Diagram
| Model number | Manufacturer | Description |
| ATTINY85-20MI | Atmel Corporation | RISC Microcontroller, 8-Bit, FLASH, 20MHz, CMOS, 4 X 4 MM, 0.80 MM HEIGHT, 0.50 MM PITCH, MO-220WGGD5, MLF-20 |
| ATTINY85-20PI | Microchip Technology Inc | RISC Microcontroller, 8-Bit, FLASH, 20MHz, CMOS, PDIP8 |
ATTINY85 works like any other microcontroller. If stated in one sentence, all that microcontrollers do is execute the application program saved in its memory. So in the case of controllers all there to do is write application program. Without programming controller simply stays idle.
Step by step procedure for programming ATTINY85 is explained below:
1. First list the tasks to be done by the designing application.
2. Write down the functions to be executed by controller to complete required tasks.
3. Develop the program code for the functions in IDE software.
4. After writing the program compile it to eliminate errors.
5. Make the IDE generate HEX file for the written program after compiling.
6. This HEX file contains the machine code which should be saved in microcontroller flash memory.
7. Choose the programming device (usually SPI programmer made for AVR microcontrollers) which establishes communication between PC and ATTINY85. You can also program the microcontroller using UART Interface. Programming ATTINY85 can also be done by using ARDUINO boards.
8. Run the programmer software and choose the appropriate hex file.
9. Burn the HEX file of written program in ATTINY85 flash memory using this program.
10. After disconnecting the programmer connect the appropriate peripherals for the controller and get the system started.
Once powered, the ATTINY85 executes the machine code saved in its memory to create the programmed response.
● Used in development boards
● Hobby projects
● Drivers
● Industrial control systems
● SMPS and Power Regulation systems
● Analog signal measuring and manipulations
● Embedded systems like coffee machine, vending machine
● Display units
● Peripheral Interface system
The following diagrams show the ATTINY85 Package.
Top View
Side View
End View
Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.
Download datasheets and manufacturer documentation for ATTINY85-20PU
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