ATMEGA48A-CCU Atmel, ATMEGA48A-CCU Datasheet - Page 562
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ATMEGA48A-CCU
Manufacturer Part Number
ATMEGA48A-CCU
Description
IC MCU AVR 4K FLASH VFBGA
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA48A-CCU
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 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-UFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Part Number
Manufacturer
Quantity
Price
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8271C–AVR–08/10
21 2-wire Serial Interface .......................................................................... 215
22 Analog Comparator ............................................................................. 247
23 Analog-to-Digital Converter ................................................................ 251
24 debugWIRE On-chip Debug System .................................................. 268
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
20.6Data Transfer ......................................................................................................209
20.7AVR USART MSPIM vs. AVR SPI ......................................................................211
20.8Register Description ............................................................................................212
21.1Features ..............................................................................................................215
21.22-wire Serial Interface Bus Definition ..................................................................215
21.3Data Transfer and Frame Format ........................................................................217
21.4Multi-master Bus Systems, Arbitration and Synchronization ...............................219
21.5Overview of the TWI Module ...............................................................................222
21.6Using the TWI ......................................................................................................224
21.7Transmission Modes ...........................................................................................228
21.8Multi-master Systems and Arbitration ..................................................................241
21.9Register Description ............................................................................................242
22.1Overview .............................................................................................................247
22.2Analog Comparator Multiplexed Input .................................................................247
22.3Register Description ............................................................................................248
23.1Features ..............................................................................................................251
23.2Overview .............................................................................................................251
23.3Starting a Conversion ..........................................................................................253
23.4Prescaling and Conversion Timing ......................................................................254
23.5Changing Channel or Reference Selection .........................................................256
23.6ADC Noise Canceler ...........................................................................................257
23.7ADC Conversion Result ......................................................................................262
23.8Temperature Measurement .................................................................................262
23.9Register Description ............................................................................................263
24.1Features ..............................................................................................................268
24.2Overview .............................................................................................................268
24.3Physical Interface ................................................................................................268
24.4Software Break Points .........................................................................................269
24.5Limitations of debugWIRE ...................................................................................269
24.6Register Description ............................................................................................269
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