A000048 Arduino, A000048 Datasheet - Page 5
A000048
Manufacturer Part Number
A000048
Description
ATMEGA328 MCU IC W/ Arduino UNO Bootloader
Manufacturer
Arduino
Series
-r
Specifications of A000048
Accessory Type
Pre-Programed IC
Features
Powered Via USB Connection, AC-to-DC Adapter, Power Jack, ICSP Header
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
23
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
-
For Use With
ATmega328 Microcontrollers
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 5 of 566
- Download datasheet (23Mb)
2. Overview
2.1
8271C–AVR–08/10
Block Diagram
The ATmega48A/48PA/88A/88PA/168A/168PA/328/328P is a low-power CMOS 8-bit microcon-
troller based on the AVR enhanced RISC architecture. By executing powerful instructions in a
single clock cycle, the ATmega48A/48PA/88A/88PA/168A/168PA/328/328P achieves through-
puts approaching 1 MIPS per MHz allowing the system designer to optimize power consumption
versus processing speed.
Figure 2-1.
The AVR core combines a rich instruction set with 32 general purpose working registers. All the
32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
Block Diagram
Generation
PORT D (8)
Watchdog
Watchdog
Oscillator
Oscillator
8bit T/C 0
8bit T/C 2
USART 0
Circuits /
EEPROM
Timer
Clock
PD[0..7]
POR / BOD &
Supervision
PORT B (8)
16bit T/C 1
Analog
Power
RESET
Comp.
Flash
PB[0..7]
SPI
CPU
debugWIRE
PORT C (7)
A/D Conv.
Bandgap
PROGRAM
Internal
SRAM
PC[0..6]
LOGIC
TWI
6
ADC[6..7]
2
AVCC
XTAL[1..2]
AREF
GND
RESET
5
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