ATtiny2313 8-bit AVR Microcontroller
ATtiny2313 is a high-performance but low-power Microchip 8-bit AVR RISC architecture based Microcontroller unit that has 20 pins, out of which 18 pins can be used as I/O pins.
ATtiny2313 Pin Configuration
|
Pin Number |
Pin Name |
Description |
|
1 |
RESET/dW/PA2 |
Port A BIt 2 or RESET used mainly for programming or dW |
|
2 |
PD0/RXD |
Bidirectional I/O Pin of Port D Bit 0 or UART DATA Receive |
|
3 |
PD1/TXD |
Bidirectional I/O Pin of Port D Bit 1 or UART DATA Transmit |
|
4 |
PA1/XTAL2 |
Port A BIt 1 or Crystal Out |
|
5 |
PA0/XTAL1 |
Port A Bit 0 or Crystal In |
|
6 |
PD2/CKOUT/XCK/INT0 |
Bidirectional I/O Pin of Port D Bit 2 or External Interrupt 0 or System clock output or USART clock for synchronous transfer |
|
7 |
PD3/INT1 |
Bidirectional I/O Pin of Port D Bit 3 or External Interrupt 1 |
|
8 |
PD4/T0 |
Bidirectional I/O Pin of Port D Bit 4 or Timer 0 Output/counter |
|
9 |
PD5/OC0B/T1 |
Bidirectional I/O Pin of Port D Bit 5 or Output compare match Bout or Timer 1 Output / Counter |
|
10 |
GND |
Ground Pin of MCU |
|
11 |
PD6/ICP |
Bidirectional I/O Pin of Port D Bit 6 or Input Capture |
|
12 |
PB0/AIN0/PCINT0 |
Bidirectional I/O Pin of Port B Bit 0 or Analog comparator 0 or Pin change Interrupt source |
|
13 |
PB1/AIN1/PCINT1 |
Bidirectional I/O Pin of Port B Bit 1 or Analog comparator 1 or Pin change Interrupt source |
|
14 |
PB2/OC0A/PCIN2 |
Bidirectional I/O Pin of Port B Bit 2 or Output compare match A out or Pin change Interrupt source |
|
15 |
PB3/OC1A/PCINT3 |
Bidirectional I/O Pin of Port B Bit 3 or Output compare match A out or Pin change Interrupt source |
|
16 |
PB4/OC1B/PCINT4 |
Bidirectional I/O Pin of Port B Bit 4 or Output compare match Bout or Pin change Interrupt source |
|
17 |
PB5/MOSI/DI/SDA/PCINT5 |
Bidirectional I/O Pin of Port B Bit 5 or SPI MOSI, also used in Programming or I2C SDA or Pin change Interrupt source |
|
18 |
PB6/MISO/DO/PCINT6 |
Bidirectional I/O Pin of Port B Bit 5 or SPI MISO, also used in Programing or Pin change Interrupt source or three-wire Universal Interface Data output |
|
19 |
PB7/UCSK/SCL/PCINT7 |
Bidirectional I/O Pin of Port B Bit 7 or Three-wire mode Universal serial interface or I2C SCL or Pin change Interrupt source or SCK for Programming |
|
20 |
VCC |
Positive Pin of MCU (+5V) |
Features and Specification of the ATtiny2313 Microcontroller
|
ATtiny2313 - Simplified Features and Specification |
|
|
CPU |
8-bit AVR |
|
Number of Pins |
20 |
|
Operating Voltage (V) |
1.8-5.5V |
|
Number of I/O pins |
18 |
|
ADC Module |
Nil |
|
Timer Module |
8-bit(1), 16-bit(1) |
|
Comparators |
1 |
|
DAC Module |
Nil |
|
Communication Peripherals |
1-UART, 2-SPI, 1-I2C |
|
External Oscillator |
Yes |
|
Internal Oscillator |
8 MHz |
|
Program Memory (KB) |
2 KB |
|
CPU Speed (MIPS) |
20 MIPS |
|
RAM Bytes |
128 |
|
Data EEPROM |
128 Bytes |
Note: Complete technical details can be found in the ATtiny2313 Datasheet linked at the bottom of this page.
Alternative Product of ATtiny2313
Alternative products for ATtiny2313 microcontroller are listed below-
- ATtiny2313A (Exact Alternative with the new release)
- ATtiny417
- ATtiny28L
- ATtiny48
- ATmega88PA
- ATmega8A
- ATmega8515
- ATmega8535
- ATmega645A
- ATmega6490
Introduction to ATtiny2313
ATtiny2313 is a high-performance but low-power Microchip 8-bit AVR RISC architecture based Microcontroller unit that has 20 pins, out of which 18 pins can be used as I/O pins.
It has Powerful instruction architecture that provides a processing speed of 1 MIPS per MHz while balancing power consumption at the same time processing high-speed performance. The speed could reach up to 20 MIPS if 20 Mhz max frequency is used. ATtiny2313 also comes with the debugWIRE On-Chip debugging feature, In-system Programmable SPI Port, Low-Power Idle, Power-down, and Standby Modes. It also uses a programmable brownout detection circuit.
It has a wide operating voltage range, from 1.8V to 5.5V. Thus, it can be used in 1.8V, 3.3V, or 5.0V logic level operations. However, 0-4 Mhz operation is supported by the 1.8V input voltage for ATtiny2313V. For frequency up to 10 Mhz, the minimum voltage is required 2.7V for ATtiny2313, and for 20 Mhz operations, the minimum voltage is required 4.5V-5.5V.
The below image is showing the detailed pin diagram of the ATtiny2313.
Detailed Features of ATtiny2313
|
ATtiny2313 –Detailed Features |
|
|
CPU |
8-Bit AVR RISC |
|
Architecture |
8 |
|
Program Memory Size (Kbytes) |
2 |
|
RAM (bytes) |
128 |
|
EEPROM/HEF |
128 |
|
Pin Count |
20 |
|
Max. CPU Speed (MHz) |
20 |
|
Peripheral Pin Select (PPS) |
No |
|
Internal Oscillator |
4-Mhz |
|
No. Of comparators |
1 |
|
No. Of Operational Amplifier |
0 |
|
No. Of ADC channels |
0 |
|
Max ADC Resolution (bits) |
- |
|
ADC with Computation |
0 |
|
Number of DAC Converter |
0 |
|
Max DAC resolution |
- |
|
Internal Voltage Reference |
No |
|
Zero Cross Detect |
No |
|
No. Of 8-bit timers |
1 |
|
No. Of 16-bit Timers |
1 |
|
Signal Measurement Timer |
0 |
|
Hardware Limit Timer |
0 |
|
No. Of PWM outputs |
4 |
|
Max PWM resolution |
1024 |
|
Angular Timer |
0 |
|
Math Accelerator |
No |
|
No. Of UART module |
1 |
|
No. Of SPI Module |
2 |
|
No. Of I2C module |
1 |
|
No. Of USB Module |
0 |
|
Windowed Watchdog Timer (WWDT) |
No |
|
CRC/Scan |
No |
|
Numerically Controlled Oscillator |
No |
|
Cap. Touch Channels |
4 |
|
Segment LCD |
0 |
|
Minimum Operating Temperature (*C) |
-40 |
|
Maximum Operating Temperature (*C) |
85 |
|
Minimum Operating Voltage (V) |
1.8 / (2.7 up to 10 Mhz) / (4.5 up to 20 Mhz) |
|
Maximum Operating Voltage (V) |
5.5 |
|
High Voltage Capable |
No |
Programming AVR Microcontroller
PIC microcontrollers can be programmed with different software that is available in the market. There are people who still use Assembly language to program AVR MCUs. The below details is for the most advanced and common software and compiler that has been developed by Atmel (now Microchip) itself.
In order to program the AVR microcontroller, we will need an IDE (Integrated Development Environment), where the programming takes place. A compiler, where our program gets converted into MCU readable form called HEX files.
IDE: Atmel Studio 7
Compiler: AVR and ARM Toolchains
Microchip has given all these two software for free. They can be downloaded directly from their official page. I have also provided the link for your convenience. Once downloaded, install them on your computer. If you have any problem doing so, you can post them in the comment below.
To dump or upload our code into AVR, we will need a device called ATAtmel-ICE. The ATATmel - ICE programmer/debugger is a simple, in-circuit debugger that is controlled by a PC running Atmel Studio software on a Windows platform. The ATAtmel-ICE programmer/debugger is an integral part of the development engineer's tool suite. The basic ATtiny2313 programming circuit is shown below.
Other than this official programmer, users also use USB ASP AVR Programming Device for low-cost programming solutions.
In addition to this, we will also need other hardware like a Perf board or breadboard, Soldering station, AVR ICs, Crystal oscillators, capacitors, etc.
Components Associated with AVR
USB ASP AVR Programmer, AVR Development Board, Crystal Oscillators, Capacitors, 12V Adapter, 7805 Voltage Regulator.
2D Model
The dimensions of the ATtiny2313 are shown below-
