PIC18F45K20-I/ML Microchip Technology, PIC18F45K20-I/ML Datasheet - Page 19

• Manufacturer Part Number: PIC18F45K20-I/ML
• Description: IC PIC MCU FLASH 16KX16 44QFN
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F45K20-I/ML

• Program Memory Type: FLASH
• Program Memory Size: 32KB (16K x 16)
• Package / Case: 44-QFN
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 64MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 35
• Eeprom Size: 256 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1.5 KB
• Interface Type: CCP/ECCP/EUSART/I2C/MSSP/SPI
• Maximum Clock Frequency: 64 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 4
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14-ch x 10-bit
• Package: 44QFN EP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 64 MHz
• Operating Supply Voltage: 2.5|3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM240313 - BOARD DEMO 8BIT XLPAC164112 - VOLTAGE LIMITER MPLAB ICD2 VPPDM164124 - KIT STARTER FOR PIC18F4XK20AC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

© 2009 Microchip Technology Inc.
FIGURE 3-5:
To complete the project setup, we will add a Linker Script and microcontroller header
file to the project. A Linker Script is required to build the project. It is a command file for
the linker, and defines options that describe the available memories on the target
microcontroller. There are four example linker files for the microcontroller:
Add the Linker Script by selecting menu Project > Add files to project…. In the “Files of
type” dropdown box, select “Linker Scripts (*.lkr)” as shown in Figure 3-6. Browse
to the Linker Scripts directory C:\MCC18\lkr and open the 18f45k20i.lkr file as
the debugger will be used in later lessons.
Files can also be added by right-clicking in the Project window. Right-click on the
“Header Files” folder and select Add Files… from the pop-up menu. Browse to the
MPLAB C header file directory C:\MCC18\h and open the p18f45k20.h header file.
The Project window now looks like Figure 3-7.
It is important to note that the file selected in the directory it resides in will be added to
the project, so modifying it will modify the original file. If this is not desired, open the file
and use File > Save As… to save a new copy in the current project directory and then
add the new file to the project. As a final step use File > Save Workspace to save the
project and its working environment.
18f45k20.lkr
18f45k20_e.lkr
18f45k20i.lkr
18f45k20i_e.lkr
PICkit™ 3 Debug Express Lessons
THE PROJECT WINDOW
Basic Linker Script file for compiling a memory image in
non-extended processor mode. (More on the Extended mode in a
later lesson.)
Linker Script file for compiling using Extended mode.
Linker Script file for use when debugging. These Linker Scripts
prevent application code from the using the small areas of memory
reserved for the debugger.
Linker Script file for debugging in Extended mode.
DS41370C-page 15