ATMEGA328-MU Atmel, ATMEGA328-MU Datasheet - Page 106

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ATMEGA328-MU

Manufacturer Part Number
ATMEGA328-MU
Description
IC MCU AVR 32K FLASH 32QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets

Specifications of ATMEGA328-MU

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
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
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Processor Series
ATMEGA32x
Core
AVR
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
2-Wire, SPI, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
23
Number Of Timers
3
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Operating Temperature Range
- 40 C to + 85 C
Processor To Be Evaluated
ATMEGA328
Supply Current (max)
0.2 mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
8271C–AVR–08/10
Figure 14-10. Timer/Counter Timing Diagram, Setting of OCF0x, with Prescaler (f
Figure 14-11
PWM mode where OCR0A is TOP.
Figure 14-11. Timer/Counter Timing Diagram, Clear Timer on Compare Match mode, with Pres-
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
TCNTn
TCNTn
(clk
(clk
OCRnx
OCRnx
OCFnx
(CTC)
OCFnx
clk
clk
clk
clk
I/O
I/O
I/O
Tn
I/O
Tn
/8)
/8)
shows the setting of OCF0A and the clearing of TCNT0 in CTC mode and fast
caler (f
clk_I/O
OCRnx - 1
TOP - 1
/8)
OCRnx
TOP
OCRnx Value
TOP
OCRnx + 1
BOTTOM
BOTTOM + 1
OCRnx + 2
clk_I/O
/8)
106

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