ATMEGA324P-20AU Atmel, ATMEGA324P-20AU Datasheet - Page 429

• Manufacturer Part Number: ATMEGA324P-20AU
• Description: IC MCU AVR 32K FLASH 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA324P-20AU

• 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: 32
• 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: 44-TQFP, 44-VQFP
• Processor Series: ATMEGA32x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: 2-Wire/JTAG/SPI/USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 4.5 V to 5.5 V
• 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: 8-ch x 10-bit
• A/d Inputs: 8-Channel, 10-Bit
• Cpu Speed: 20 MIPS
• Eeprom Memory: 1K Bytes
• Input Output: 32
• Interface: 2-Wire/JTAG/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin TQFP
• Programmable Memory: 32K Bytes
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2.7-5.5 V
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 20MHz
• Total Internal Ram Size: 2KB
• # I/os (max): 32
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package: 44TQFP
• Family Name: ATmega
• Maximum Speed: 20 MHz
• Controller Family/series: AVR MEGA
• No. Of I/o's: 32
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Rohs Compliant: Yes
• For Use With: ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

32.8
32.9
32.10 Rev. 8011F- 04/07
32.11 Rev. 8011E - 04/07
8011O–AVR–07/10
Rev. 8011H- 04/08
Rev. 8011G- 08/07
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LCD reference removed from table note in
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Removed reference to External Memory Interface in
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Table 6-12 on page
80.
”Data Retention” on page
”ATmega644P Typical Characteristic” on page
”Features” on page 1
”SPH and SPL – Stack Pointer High and Stack pointer Low” on page
”Data Reception – The USART Receiver” on page
”ADCSRB – ADC Control and Status Register B” on page
Figure 26-31 on page
”ATmega324P DC Characteristics” on page 327
Table 25-7 on page 331
”Watchdog Timer Configuration” on page
”GTCCR – General Timer/Counter Control Register” on page
”EECR – The EEPROM Control Register” on page
Table 11-7 on page
”Address Match Unit” on page
Table 6-3 on page 32.Table 6-9 on page
328.
”ADC - Analog-to-digital Converter” on page
87,
”Ordering Information” on page
37.
Table 11-14 on page
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84,
”Packaging Information” on page
354,
”Packaging Information” on page
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Table 11-8 on page
Figure on page 355,Figure 26-33 on page 355
Table 6-14 on page
Table 25-9 on page
ATmega164P/324P/644P
”Sleep Modes” on page
214.
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”Pinout - DRQFN” on page
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Table 25-12 on
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