ATMEGA324PA-MCHR Atmel, ATMEGA324PA-MCHR Datasheet - Page 251
ATMEGA324PA-MCHR
Manufacturer Part Number
ATMEGA324PA-MCHR
Description
MCU AVR 32KB FLASH 20 MHZ 44QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA324PA-AUR.pdf
(468 pages)
Specifications of ATMEGA324PA-MCHR
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
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K 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
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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ATmega164PA/324PA/644PA/1284P
Signal components higher than the Nyquist frequency (f
/2) should not be present for either
ADC
kind of channels, to avoid distortion from unpredictable signal convolution. The user is advised
to remove high frequency components with a low-pass filter before applying the signals as
inputs to the ADC.
Figure 22-8. Analog Input Circuitry
I
IH
ADCn
1..100 kΩ
C
= 14 pF
S/H
I
IL
V
/2
CC
251
8152G–AVR–11/09
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