ATMEGA48-20MMH Atmel, ATMEGA48-20MMH Datasheet - Page 342
ATMEGA48-20MMH
Manufacturer Part Number
ATMEGA48-20MMH
Description
MCU AVR 4KB FLASH 20MHZ 28QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA48-20MMH
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
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Processor Series
ATMEGA48x
Core
AVR8
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Data Bus Width
8 bit
Maximum Clock Frequency
16 MHz
Operating Supply Voltage
2.7 V to 5.5 V
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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30. Register Summary
342
Address
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ATmega48/88/168
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UBRR0H
Reserved
UCSR0C
UBRR0L
UCSR0B
UCSR0A
Name
UDR0
UMSEL01
RXCIE0
Bit 7
RXC0
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UMSEL00
TXCIE0
Bit 6
TXC0
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UDRIE0
UPM01
UDRE0
Bit 5
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USART Baud Rate Register Low
UPM00
RXEN0
Bit 4
USART I/O Data Register
FE0
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USBS0
TXEN0
Bit 3
DOR0
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USART Baud Rate Register High
UCSZ01 /UDORD0
UCSZ02
Bit 2
UPE0
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UCSZ00 / UCPHA0
RXB80
Bit 1
U2X0
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UCPOL0
MPCM0
TXB80
Bit 0
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2545S–AVR–07/10
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Page
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