ATMEGA48-20MMH Atmel, ATMEGA48-20MMH Datasheet - Page 301
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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27.8.4
2545S–AVR–07/10
SPI Serial Programming Characteristics
Figure 27-9. Serial Programming Waveforms
For characteristics of the SPI module see “SPI Timing Characteristics” on page 308.
SERIAL DATA OUTPUT
SERIAL CLOCK INPUT
SERIAL DATA INPUT
SAMPLE
(MOSI)
(MISO)
(SCK)
MSB
MSB
ATmega48/88/168
LSB
LSB
301
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