ATMEGA325A-MU Atmel, ATMEGA325A-MU Datasheet - Page 571
ATMEGA325A-MU
Manufacturer Part Number
ATMEGA325A-MU
Description
IC MCU AVR 32K FLASH 64VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA325A-MU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
54
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
64-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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29.8.9
8285B–AVR–03/11
Pin Threshold and Hysteresis
ATmega165A/165PA/325A/325PA/3250A/3250PA/6
Figure 29-460.ATmega645P: I/O Pin Input Threshold Voltage vs. V
Figure 29-461.ATmega645P: I/O Pin Input Threshold Voltage vs. V
3.1
2.9
2.7
2.5
2.3
2.1
1.9
1.7
1.5
1.3
1.1
0.9
2.4
2.2
1.8
1.6
1.4
1.2
0.8
0.6
0.4
2
1
1.5
1.5
2
2
2.5
2.5
3
3
V
V
CC
CC
3.5
3.5
(V)
(V)
4
4
4.5
4.5
CC
CC
(V
(V
IH
5
IL
5
, I/O Pin Read as “0”
, I/O Pin Read as “1”)
5.5
5.5
-45 °C
-45 °C
85 °C
25 °C
85 °C
25 °C
571
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