ATTINY2313A-MUR Atmel, ATTINY2313A-MUR Datasheet - Page 4

• Manufacturer Part Number: ATTINY2313A-MUR
• Description: MCU AVR 2K FLASH 20MHZ 20QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY2313A-MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Size: 2KB (1K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -

2. Overview
2.1
4
Block Diagram
ATtiny2313A/4313
The ATtiny2313A/4313 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced
RISC architecture. By executing powerful instructions in a single clock cycle, the
ATtiny2313A/4313 achieves throughputs approaching 1 MIPS per MHz allowing the system
designer to optimize power consumption versus processing speed.
Figure 2-1.
VCC
GND
PROGRAMMING
Block Diagram
INSTRUCTION
INSTRUCTION
PROGRAM
PROGRAM
COUNTER
DECODER
CONTROL
REGISTER
LOGIC
FLASH
LINES
DATA REGISTER
PORTA
DATA REGISTER
PORTB
PORTA DRIVERS
PORTB DRIVERS
PA0 - PA2
PB0 - PB7
REGISTER
PURPOSE
GENERAL
REGISTER
POINTER
STATUS
SRAM
REG. PORTA
STACK
ALU
SPI
DATA DIR.
8-BIT DATA BUS
REG. PORTB
DATA DIR.
MCU CONTROL
DATA REGISTER
MCU STATUS
CALIBRATED
OSCILLATOR
OSCILLATOR
WATCHDOG
COUNTERS
INTERRUPT
REGISTER
REGISTER
INTERNAL
INTERNAL
EEPROM
TIMER/
USART
TIMER
PORTD
UNIT
USI
PORTD DRIVERS
PD0 - PD6
XTAL1
REG. PORTD
DATA DIR.
OSCILLATOR
TIMING AND
CONTROL
DEBUGGER
ON-CHIP
XTAL2
8246A–AVR–11/09
RESET