ATMEGA329P-20MU Atmel, ATMEGA329P-20MU Datasheet - Page 2

• Manufacturer Part Number: ATMEGA329P-20MU
• Description: IC MCU 32K 4X25 LCD CTRL 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA329P-20MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, LCD, 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): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Processor Series: ATMEGA32x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: SPI, USART, USI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATMEGA329P-16MU; ATMEGA329P-16MU

1. Pin Configurations
Figure 1-1.
Note:
8021GS–AVR–03/11
(USCK/SCL/PCINT4) PE4
(XCK/AIN0/PCINT2) PE2
(DI/SDA/PCINT5) PE5
(OC0A/PCINT12) PB4
(OC1A/PCINT13) PB5
(OC1B/PCINT14) PB6
(MOSI/PCINT10) PB2
(MISO/PCINT11) PB3
(CLKO/PCINT7) PE7
The large center pad underneath the QFN/MLF packages is made of metal and internally connected to GND. It should be sol-
dered or glued to the board to ensure good mechanical stability. If the center pad is left unconnected, the package might loosen
from the board.
(AIN1/PCINT3) PE3
(RXD/PCINT0) PE0
(TXD/PCINT1) PE1
(SCK/PCINT9) PB1
(DO/PCINT6) PE6
(SS/PCINT8) PB0
MLF/ Pinout ATmega329P
LCDCAP
10
11
14
15
16
12
13
1
2
3
4
5
6
7
8
9
INDEX CORNER
ATmega329P/3290P
39
38
35
34
33
48
47
46
45
44
43
42
41
40
37
36
PA3 (COM3)
PA4 (SEG0)
PA5 (SEG1)
PA6 (SEG2)
PA7 (SEG3)
PG2 (SEG4)
PC7 (SEG5)
PC5 (SEG7)
PC4 (SEG8)
PC3 (SEG9)
PC2 (SEG10)
PC1 (SEG11)
PC0 (SEG12)
PC6 (SEG6)
PG1 (SEG13)
PG0 (SEG14)
2