ATMEGA329P-20MNR Atmel, ATMEGA329P-20MNR Datasheet - Page 236
![MCU AVR 32K FLASH 20MHZ 64QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
ATMEGA329P-20MNR
Manufacturer Part Number
ATMEGA329P-20MNR
Description
MCU AVR 32K FLASH 20MHZ 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA329P-20MNR
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
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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23.3.7
23.3.8
8021G–AVR–03/11
Display Blanking
Port Mask
(TOSC1) pin instead of a 32kHz crystal. See
page 152
Before entering Power-down mode, Standby mode or ADC Noise Reduction mode with synchro-
nous LCD clock selected, the user have to disable the LCD. Refer to
page
When LCDBL is written to one, the LCD is blanked after completing the current frame. All seg-
ments and common pins are connected to GND, discharging the LCD. Display memory is
preserved. Display blanking should be used before disabling the LCD to avoid DC voltage
across segments, and a slowly fading image.
For LCD with less than 25/40 segment terminals, it is possible to mask some of the unused pins
and use them as ordinary port pins instead. Refer to
pins are automatically configured as port pins.
239.
for further details.
”Asynchronous Operation of Timer/Counter2” on
Table 23-3
ATmega329P/3290P
for details. Unused common
”Disabling the LCD” on
236
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