ATMEGA48A-MMH Atmel, ATMEGA48A-MMH Datasheet - Page 4
![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
1.1.7
1.1.8
1.1.9
8271CS–AVR–08/10
AV
AREF
ADC7:6 (TQFP and QFN/MLF Package Only)
CC
The various special features of Port D are elaborated in
89.
AV
connected to V
through a low-pass filter. Note that PC6...4 use digital supply voltage, V
AREF is the analog reference pin for the A/D Converter.
In the TQFP and QFN/MLF package, ADC7:6 serve as analog inputs to the A/D converter.
These pins are powered from the analog supply and serve as 10-bit ADC channels.
CC
ATmega48A/48PA/88A/88PA/168A/168PA/328/328P
is the supply voltage pin for the A/D Converter, PC3:0, and ADC7:6. It should be externally
CC
, even if the ADC is not used. If the ADC is used, it should be connected to V
”Alternate Functions of Port D” on page
CC
.
CC
4