ATMEGA329P-20MU Atmel, ATMEGA329P-20MU Datasheet - Page 425

• 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

8021G–AVR–03/11
27 Memory Programming ......................................................................... 296
28 Electrical Characteristics .................................................................... 330
29 Typical Characteristics ........................................................................ 342
30 Register Summary ............................................................................... 403
31 Instruction Set Summary .................................................................... 407
32 Ordering Information ........................................................................... 410
26.4Read-While-Write and No Read-While-Write Flash Sections ..............................282
26.5Boot Loader Lock Bits .........................................................................................284
26.6Entering the Boot Loader Program ......................................................................286
26.7Addressing the Flash During Self-Programming .................................................286
26.8Self-Programming the Flash ................................................................................287
26.9Register Description ............................................................................................294
27.1Program And Data Memory Lock Bits .................................................................296
27.2Fuse Bits .............................................................................................................297
27.3Signature Bytes ...................................................................................................299
27.4Calibration Byte ...................................................................................................299
27.5Page Size ............................................................................................................299
27.6Parallel Programming Parameters, Pin Mapping, and Commands .....................299
27.7Parallel Programming ..........................................................................................302
27.8Programming via the JTAG Interface ..................................................................317
28.1Absolute Maximum Ratings* ...............................................................................330
28.2DC Characteristics ..............................................................................................330
28.3Speed Grades .....................................................................................................333
28.4Clock Characteristics ...........................................................................................335
28.5System and Reset Characteristics ......................................................................336
28.6Standard Power-on Reset ...................................................................................336
28.7Enhanced Power-on Reset .................................................................................337
28.8Brown-out Detection ............................................................................................337
28.9SPI Timing Characteristics ..................................................................................338
28.10ADC Characteristics – Preliminary Data ............................................................340
28.11LCD Controller Characteristics ..........................................................................341
29.1ATmega329P ......................................................................................................343
29.2ATmega3290P ....................................................................................................373
32.1ATmega329P ......................................................................................................410
ATmega329P/3290P
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