ATmega328 Atmel Corporation, ATmega328 Datasheet - Page 343
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ATmega328
Manufacturer Part Number
ATmega328
Description
Manufacturer
Atmel Corporation
Specifications of ATmega328
Flash (kbytes)
32 Kbytes
Pin Count
32
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
23
Ext Interrupts
24
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
2
Eeprom (bytes)
1024
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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8271D–AVR–05/11
Figure 30-19. ATmega48A: Reset Pull-up Resistor Current vs. Reset Pin Voltage (V
Figure 30-20. ATmega48A: Reset Pull-up Resistor Current vs. Reset Pin Voltage (V
120
100
60
50
40
30
20
10
80
60
40
20
0
0
0
0
0.5
ATmega48A/PA/88A/PA/168A/PA/328/P
0.5
1
1.5
1
2
V
V
RESET
RESET
1.5
2.5
(V)
(V)
3
2
3.5
4
2.5
4.5
3
5
-40 °C
-40 °C
25 °C
85 °C
25 °C
85 °C
CC
CC
= 2.7 V)
= 5V)
343
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