ATMEGA48PA-MNR Atmel, ATMEGA48PA-MNR Datasheet - Page 445
![MCU AVR 4KB FLASH 20MHZ 28QFN](/photos/12/32/123209/28m1-vqfn_sml.jpg)
ATMEGA48PA-MNR
Manufacturer Part Number
ATMEGA48PA-MNR
Description
MCU AVR 4KB FLASH 20MHZ 28QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA48PA-AN.pdf
(448 pages)
Specifications of ATMEGA48PA-MNR
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
*
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI, UART, I2C
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
23
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Operating Temperature Range
- 40 C to + 85 C
Processor To Be Evaluated
ATMEGA48A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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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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