ATMEGA48PA-PN Atmel, ATMEGA48PA-PN Datasheet - Page 322

• Manufacturer Part Number: ATMEGA48PA-PN
• Description: MCU AVR 4KB FLASH 20MHZ 28PDIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA48PA-PN

• 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): 1.8 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8161D–AVR–10/09
3. C
4. f
5. This requirement applies to all ATmega48PA/88PA/168PA/328P 2-wire Serial Interface operation. Other devices connected
to the 2-wire Serial Bus need only obey the general f
CK
b
= capacitance of one bus line in pF.
= CPU clock frequency
Figure 28-5. 2-wire Serial Bus Timing
SCL
SDA
t
SU;STA
t
HD;STA
t
t
of
LOW
SCL
ATmega48PA/88PA/168PA/328P
requirement.
t
HIGH
t
HD;DAT
t
LOW
t
SU;DAT
t
SU;STO
t
r
t
BUF
322