ATMEGA328-MU Atmel, ATMEGA328-MU Datasheet - Page 298

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

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
Table 27-5.
Note:
Table 27-6.
Note:
Table 27-7.
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
Extended Fuse Byte
–
–
–
–
–
BOOTSZ1
BOOTSZ0
BOOTRST
Extended Fuse Byte
–
–
–
–
–
BODLEVEL2
BODLEVEL1
BODLEVEL0
High Fuse Byte
RSTDISBL
DWEN
SPIEN
(2)
1. The default value of BOOTSZ[1:0] results in maximum Boot Size. See
1. See
(1)
page
(1)
(1)
(1)
Extended Fuse Byte for ATmega88A/88PA/168A/168PA
Extended Fuse Byte for ATmega328/328P
Fuse High Byte for ATmega48A/48PA/88A/88PA/168A/168PA
Table 28-13 on page 323
303.
Bit No
Bit No
Bit No
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
Description
–
–
–
–
–
Select Boot Size
(see
Table 26-7 on page 291
Table 26-10 on page 292
for details)
Select Boot Size
(see
Table 26-7 on page 291
Table 26-10 on page 292
for details)
Select Reset Vector
Description
–
–
–
–
–
Brown-out Detector trigger
level
Brown-out Detector trigger
level
Brown-out Detector trigger
level
Description
External Reset Disable
debugWIRE Enable
Enable Serial Program and
Data Downloading
for BODLEVEL Fuse decoding.
and
and
Default Value
1
1
1
1
1
0 (programmed)
0 (programmed)
1 (unprogrammed)
Default Value
1
1
1
1
1
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
Default Value
1 (unprogrammed)
1 (unprogrammed)
0 (programmed, SPI
programming enabled)
”Pin Name Mapping” on
(1)
(1)
298