ATMEGA329P-20AN Atmel, ATMEGA329P-20AN Datasheet - Page 24

• Manufacturer Part Number: ATMEGA329P-20AN
• Description: IC MCU AVR 32K 20MHZ 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA329P-20AN

• 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-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11. Datasheet Revision History
11.1
11.2
11.3
8021GS–AVR–03/11
Rev.8021G - 03/11
Rev.8021F - 02/11
Rev.8021E – 07/09
Please note that the referring page numbers in this section are referring to this document.The
referring revision in this section are referring to the document revision.
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Updated
Updated the last page with Atmel’s new addresses.
Removed ATmega169PA/649P/6490P from the datasheet and updated it accordingly.
Updated Feature Overviews.
Removed Typical and electrical characteristics, and Ordering information for
ATmega169PA, ATmega649P and ATmega6490P.
Errata updated.
Updated the datasheet according to the Atmel new brand style guide.
Editing update.
Integrated ATmega169PA/649P/6490P into the manual and updated the datasheet
accordingly.
Updated Feature Overviews.
Updated text in
Added
Updated the document with Atmel new style guide included “Atmel blue logo”.
Updated
Added Typical chara for
”ATmega649P” on page
updated.
Updated
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Updated last page.
Table 8-6 on page
”Errata” on page
Figure 29-11 on page 356
”Ordering Information” on page
”Packaging Information” on page
Section 8.5 ”Low-frequency Crystal Oscillator” on page
443, and
”ATmega329P” on page
416.
30, Capacitance for Low-frequency Oscillator.
”ATmega6490P” on page
Power-down Supply Current.
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ATmega329P/3290P
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”ATmega3290P” on page
473. All other typical chara
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