ATMEGA48-20PI Atmel, ATMEGA48-20PI Datasheet - Page 304

• Manufacturer Part Number: ATMEGA48-20PI
• Description: IC AVR MCU 4K 5V 20MHZ 28-DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA48-20PI

• 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 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: ATMEGA48-24PI; ATMEGA48-24PI

28.3
304
Speed Grades
ATmega48/88/168
Maximum frequency is dependent on V
mum Frequency vs. V
4.5V.
Figure 28-1. Maximum Frequency vs. V
Figure 28-2. Maximum Frequency vs. V
10 MHz
20 MHz
10 MHz
4 MHz
CC
curve is linear between 1.8V < V
1.8V
2.7V
Safe Operating Area
CC.
CC
CC
As shown in
Safe Operating Area
, ATmega48V/88V/168V
, ATmega48/88/168
2.7V
4.5V
Figure 28-1
CC
< 2.7V and between 2.7V < V
5.5V
and
Figure
5.5V
28-2, the Maxi-
2545S–AVR–07/10
CC
<