ATMEGA324PA-MCHR Atmel, ATMEGA324PA-MCHR Datasheet - Page 465

• Manufacturer Part Number: ATMEGA324PA-MCHR
• Description: MCU AVR 32KB FLASH 20 MHZ 44QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA324PA-MCHR

• 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): 1.8 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

8152G–AVR–11/09
21 AC - Analog Comparator ..................................................................... 239
22 ADC - Analog-to-digital Converter ..................................................... 242
23 JTAG Interface and On-chip Debug System ..................................... 262
24 IEEE 1149.1 (JTAG) Boundary-scan ................................................... 268
20.3Data Transfer and Frame Format ........................................................................210
20.4Multi-master Bus Systems, Arbitration and Synchronization ...............................213
20.5Overview of the TWI Module ...............................................................................215
20.6Using the TWI ......................................................................................................217
20.7Transmission Modes ...........................................................................................220
20.8Multi-master Systems and Arbitration ..................................................................233
20.9Register Description ............................................................................................234
21.1Overview .............................................................................................................239
21.2Analog Comparator Multiplexed Input .................................................................239
21.3Register Description ............................................................................................240
22.1Features ..............................................................................................................242
22.2Overview .............................................................................................................242
22.3Operation .............................................................................................................243
22.4Starting a Conversion ..........................................................................................244
22.5Prescaling and Conversion Timing ......................................................................245
22.6Changing Channel or Reference Selection .........................................................248
22.7ADC Noise Canceler ...........................................................................................250
22.8ADC Conversion Result ......................................................................................255
22.9Register Description ............................................................................................257
23.1Features ..............................................................................................................262
23.2Overview .............................................................................................................262
23.3TAP – Test Access Port ......................................................................................262
23.4TAP Controller .....................................................................................................264
23.5Using the Boundary-scan Chain ..........................................................................265
23.6Using the On-chip Debug System .......................................................................265
23.7On-chip Debug Specific JTAG Instructions .........................................................266
23.8Using the JTAG Programming Capabilities .........................................................266
23.9Bibliography .........................................................................................................267
23.10Register Description ..........................................................................................267
24.1Features ..............................................................................................................268
24.2Overview .............................................................................................................268
ATmega164PA/324PA/644PA/1284P
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