MCU 8-bit ATtiny AVR RISC 4KB Flash 3.3V/5V 8-Pin SOIC EIAJ The ATTINY45 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. In this article we are going to discuss about ATTINY45 microcontroller pinout, specifications, datasheet, features and other details about this microcontroller.
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Sep 24, 2021
Sandy Adolph
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MCU 8-bit ATtiny AVR RISC 4KB Flash 3.3V/5V 8-Pin SOIC EIAJ
The ATTINY45 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. In this article we are going to discuss about ATTINY45 microcontroller pinout, specifications, datasheet, features and other details about this microcontroller. Furthermore, Huge range of Semiconductors, Capacitors, Resistors and IcS in stock. Welcome RFQ.
ATTINY45-20SU
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.40795 | $4.41 |
| 10+ | $4.15845 | $41.58 |
| 100+ | $3.92306 | $392.31 |
| 500+ | $3.701 | $1850.5 |
| 1000+ | $3.49151 | $3491.51 |
ATTINY45 is high performance, low power controller from ATMEL. It is an 8 bit controller based on Advanced RISC architecture. It is one of members of ATTINYXX series, popular because of its small size and features. ATTINY45 is one of the most popular microcontrollers due to its small size and multiple features.
This microcontroller available in multiple embedded systems and even you can find its applications at the industrial level. ATTINY45 microcontroller allows the designer to optimize power vs performance through programming. It is designed by using AVR and RSIC technology which makes it less power consumption controller and usage of its internal oscillator make it save more power.
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Microchip Technology ATTINY45-20SU technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology ATTINY45-20SU.
Microchip Technology ATTINY45-20SU technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology ATTINY45-20SU.
| Product Attribute | Attribute Value | |
|---|---|---|
| Factory Lead Time | 23 Weeks | |
| Contact Plating | Tin | |
| Mount | Surface Mount | |
| Mounting Type | Surface Mount | |
| Package / Case | 8-SOIC (0.209, 5.30mm Width) | |
| 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 | 2011 | |
| JESD-609 Code | e3 | |
| Pbfree Code | yes | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) | |
| Number of Terminations | 8Terminations | |
| Termination | SMD/SMT | |
| Terminal Position | DUAL |
| Product Attribute | Attribute Value | |
|---|---|---|
| Terminal Form | GULL WING | |
| Peak Reflow Temperature (Cel) | 260 | |
| Supply Voltage | 5V | |
| Frequency | 20MHz | |
| Time@Peak Reflow Temperature-Max (s) | 40 | |
| Base Part Number | ATTINY45 | |
| Supply Voltage-Max (Vsup) | 5.5V | |
| Power Supplies | 3/5V | |
| Interface | SPI | |
| Memory Size | 4kB | |
| Oscillator Type | Internal | |
| RAM Size | 256 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 | 4KB 2K x 16 | |
| Connectivity | USI |
| Product Attribute | Attribute Value | |
|---|---|---|
| Bit Size | 8 | |
| Access Time | 20 μs | |
| Has ADC | YES | |
| DMA Channels | NO | |
| Data Bus Width | 8b | |
| PWM Channels | YES | |
| Number of Timers/Counters | 2Timers/Counters | |
| Address Bus Width | 8b | |
| EEPROM Size | 256 x 8 | |
| Number of Programmable I/O | 6Programmable I/Os | |
| Number of ADC Channels | 4ADC Channels | |
| Number of I2C Channels | 1I2C Channel | |
| Height | 1.91mm | |
| Length | 5.35mm | |
| Width | 5.4mm | |
| REACH SVHC | No SVHC | |
| Radiation Hardening | No | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
• High efficiency design
• Low current consumption 300uA in use & 0.1uA in sleep mode on 1.8V.
• Total six analog inputs
• Built in 4 kbytes of flash memory
• Built in 256b of SRAM
• Built in 256b of EEPROM
• Circuitry contains 32 Registers
• Minimum cycles per instruction design or Advance RISC
• Programming lock feature for code security
• Built in two 8-bit timers one is high speed and other is compare mode.
• Total six I/O pins
• Universal Serial Interface feature
• Two pulse width modulation channels
• Watchdog programmable Timer and Oscillator
• Operating voltage as low as 1.8V DC to 5.5V DC max.
ATTINY25 and ATTINY85 are the two most suitable alternatives of ATTINY45. But the internal Flash, SRAM and EEPROM values are different of all the three microcontrollers.
•ATTINY45 is an 8 pin AVR controller and so application program can be developed in AVR IDE which has many references.
•Although we have many controllers, ATTINY is popular because it is one of cheapest.
•Also ATTINY provides many features in lesser pins.
•With program memoryof 4Kbytes the controller can be used in many applications.
•With variousPOWER SAVING modes it can work on MOBILE EMBEDDED SYSTEMS.
•With its small and compact size it can be put in many small boards.
•With Watchdog timer and other features the use on ATTINY45 is further promoted.
Like any other controller, ATTINY45 works based on application program, i.e. execute the application program saved in its memory.
The procedure to program an ATTINY45 microcontroller is described below:
1. First list the functions to be executed by controller.
2. Write the functions in programming language in IDE programs.
You can download the IDE program for free in company websites. IDE program for AVR controllers is ‘ATMEL STUDIO’. Link for ATMELSTUDIO is given below.
(Usually Atmel Studio 6.0 for Windows7 [http://atmel-studio.software.informer.com/6.0/], Atmel Studio 7 for Windows10 [https://www.microchip.com/avr-support/atmel-studio-7])
3. After writing the program compile it to eliminate errors.
4. Make the IDE generate HEX file for the written program after compiling.
5. This HEX file contains the machine code which should be saved in controller flash memory.
6. Choose the programming device (usually SPI programmer made for AVR controllers) which establishes communication between PC and ATTINY45. Programming ATTINY45 can also be done by using ARDUINO boards.
7. Run the programmer software and choose the appropriate hex file.
8. Burn the HEX file of written program in ATTINY45 flash memory using this program.
9. Disconnect the programmer, connect the appropriate peripherals for the controller and get the system started.
Machinery controlling systems in different industries
Solar based projects
Home, Office, factories IOT based applications
Weather systems and applications
Wireless data transfer and communication applications
Security based projects
Medical and health related devices
Automobile applications
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.
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Microchip Technology Inc., is a leader that provides microcontroller and analog semiconductors. Microchip was headquartered in Chandler, Arizona. We are delicated to offering low-risk product development, reducing total system cost and accelerating time to market. We mainly serve for different fields of customers applications around the world. To provide prominent technical support along with reliable delivery and quality is our goal.
Download datasheets and manufacturer documentation for ATTINY45-20SU
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