ATMEGA48A-MMH Atmel, ATMEGA48A-MMH Datasheet - Page 89
![IC MCU AVR 4K FLASH 28QFN](/photos/12/32/123209/28m1-vqfn_sml.jpg)
ATMEGA48A-MMH
Manufacturer Part Number
ATMEGA48A-MMH
Description
IC MCU AVR 4K FLASH 28QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA48A-MMH
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 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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13.3.3
8271C–AVR–08/10
Alternate Functions of Port D
Table 13-8.
The Port D pins with alternate functions are shown in
Table 13-9.
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Port Pin
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
PC3/ADC3/
PCINT11
0
0
0
0
0
0
PCINT11 • PCIE1 +
ADC3D
PCINT11 • PCIE1
PCINT11 INPUT
ADC3 INPUT
Overriding Signals for Alternate Functions in PC3...PC0
Port D Pins Alternate Functions
Alternate Function
AIN1 (Analog Comparator Negative Input)
PCINT23 (Pin Change Interrupt 23)
AIN0 (Analog Comparator Positive Input)
OC0A (Timer/Counter0 Output Compare Match A Output)
PCINT22 (Pin Change Interrupt 22)
T1 (Timer/Counter 1 External Counter Input)
OC0B (Timer/Counter0 Output Compare Match B Output)
PCINT21 (Pin Change Interrupt 21)
XCK (USART External Clock Input/Output)
T0 (Timer/Counter 0 External Counter Input)
PCINT20 (Pin Change Interrupt 20)
INT1 (External Interrupt 1 Input)
OC2B (Timer/Counter2 Output Compare Match B Output)
PCINT19 (Pin Change Interrupt 19)
INT0 (External Interrupt 0 Input)
PCINT18 (Pin Change Interrupt 18)
TXD (USART Output Pin)
PCINT17 (Pin Change Interrupt 17)
RXD (USART Input Pin)
PCINT16 (Pin Change Interrupt 16)
PC2/ADC2/
PCINT10
0
0
0
0
0
0
PCINT10 • PCIE1 +
ADC2D
PCINT10 • PCIE1
PCINT10 INPUT
ADC2 INPUT
Table
PC1/ADC1/
PCINT9
0
0
0
0
0
0
PCINT9 • PCIE1 +
ADC1D
PCINT9 • PCIE1
PCINT9 INPUT
ADC1 INPUT
13-9.
PC0/ADC0/
PCINT8
0
0
0
0
0
0
PCINT8 • PCIE1 +
ADC0D
PCINT8 • PCIE1
PCINT8 INPUT
ADC0 INPUT
89
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