ATMEGA48PA-AN Atmel, ATMEGA48PA-AN Datasheet - Page 446

• Manufacturer Part Number: ATMEGA48PA-AN
• Description: MCU AVR 4KB FLASH 20MHZ 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA48PA-AN

• 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8161D–AVR–10/09
25 Self-Programming the Flash, ATmega48PA ...................................... 269
26 Boot Loader Support – Read-While-Write Self-Programming,
27 Memory Programming ......................................................................... 294
28 Electrical Characteristics .................................................................... 313
29 Typical Characteristics ........................................................................ 326
ATmega88PA, ATmega168PA and ATmega328P 277
25.1Overview .............................................................................................................269
25.2Addressing the Flash During Self-Programming .................................................270
25.3Register Description ............................................................................................275
26.1Features ..............................................................................................................277
26.2Overview .............................................................................................................277
26.3Application and Boot Loader Flash Sections .......................................................277
26.4Read-While-Write and No Read-While-Write Flash Sections ..............................278
26.5Boot Loader Lock Bits .........................................................................................280
26.6Entering the Boot Loader Program ......................................................................281
26.7Addressing the Flash During Self-Programming .................................................282
26.8Self-Programming the Flash ................................................................................282
26.9Register Description ............................................................................................292
27.1Program And Data Memory Lock Bits .................................................................294
27.2Fuse Bits .............................................................................................................295
27.3Signature Bytes ...................................................................................................298
27.4Calibration Byte ...................................................................................................298
27.5Page Size ............................................................................................................299
27.6Parallel Programming Parameters, Pin Mapping, and Commands .....................299
27.7Parallel Programming ..........................................................................................301
27.8Serial Downloading .............................................................................................308
28.1Absolute Maximum Ratings* ...............................................................................313
28.2DC Characteristics ..............................................................................................313
28.3Speed Grades .....................................................................................................316
28.4Clock Characteristics ...........................................................................................317
28.5System and Reset Characteristics ......................................................................318
28.6SPI Timing Characteristics ..................................................................................319
28.72-wire Serial Interface Characteristics .................................................................321
28.8ADC Characteristics ............................................................................................323
28.9Parallel Programming Characteristics .................................................................324
ATmega48PA/88PA/168PA/328P
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