ATMEGA48PA-PN Atmel, ATMEGA48PA-PN Datasheet - Page 445

• Manufacturer Part Number: ATMEGA48PA-PN
• Description: MCU AVR 4KB FLASH 20MHZ 28PDIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA48PA-PN

• 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: 23
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8161D–AVR–10/09
21 2-wire Serial Interface .......................................................................... 214
22 Analog Comparator ............................................................................. 246
23 Analog-to-Digital Converter ................................................................ 250
24 debugWIRE On-chip Debug System .................................................. 267
20.5Frame Formats ....................................................................................................206
20.6Data Transfer ......................................................................................................208
20.7AVR USART MSPIM vs. AVR SPI ......................................................................210
20.8Register Description ............................................................................................211
21.1Features ..............................................................................................................214
21.22-wire Serial Interface Bus Definition ..................................................................214
21.3Data Transfer and Frame Format ........................................................................216
21.4Multi-master Bus Systems, Arbitration and Synchronization ...............................218
21.5Overview of the TWI Module ...............................................................................221
21.6Using the TWI ......................................................................................................223
21.7Transmission Modes ...........................................................................................227
21.8Multi-master Systems and Arbitration ..................................................................240
21.9Register Description ............................................................................................241
22.1Overview .............................................................................................................246
22.2Analog Comparator Multiplexed Input .................................................................246
22.3Register Description ............................................................................................247
23.1Features ..............................................................................................................250
23.2Overview .............................................................................................................250
23.3Starting a Conversion ..........................................................................................252
23.4Prescaling and Conversion Timing ......................................................................253
23.5Changing Channel or Reference Selection .........................................................255
23.6ADC Noise Canceler ...........................................................................................256
23.7ADC Conversion Result ......................................................................................261
23.8Temperature Measurement .................................................................................261
23.9Register Description ............................................................................................262
24.1Features ..............................................................................................................267
24.2Overview .............................................................................................................267
24.3Physical Interface ................................................................................................267
24.4Software Break Points .........................................................................................268
24.5Limitations of debugWIRE ...................................................................................268
24.6Register Description ............................................................................................268
ATmega48PA/88PA/168PA/328P
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