PIC18F2450-I/SO Microchip Technology, PIC18F2450-I/SO Datasheet - Page 210

• Manufacturer Part Number: PIC18F2450-I/SO
• Description: IC PIC MCU FLASH 8KX16 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2450-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 16KB (8K x 16)
• Package / Case: 28-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: UART/USART, USB
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 23
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: EUSART/USB
• Maximum Clock Frequency: 48 MHZ
• Number Of Programmable I/os: 23
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• 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, ICE2000, ICE4000, DM163014, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Package: 28SOIC W
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 48 MHz
• A/d Bit Size: 10 bit
• A/d Channels Available: 10
• Height: 2.31 mm
• Length: 17.87 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2 V
• Width: 7.49 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164322 - MODULE SOCKET MPLAB PM3 28/44QFNDM163025 - PIC DEM FULL SPEED USB DEMO BRD
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F2450/4450
18.5
The overall structure of the code protection on the
PIC18 Flash devices differs significantly from other
PIC
The user program memory is divided into three blocks.
One of these is a boot block of 1 or 2 Kbytes. The
remainder of the memory is divided into two blocks on
binary boundaries.
FIGURE 18-5:
TABLE 18-3:
DS39760C-page 208
300008h
300009h
30000Ah
30000Bh
30000Ch
30000Dh
Legend: Shaded cells are unimplemented.
®
microcontrollers.
File Name
Program Verification and
Code Protection
CONFIG5L
CONFIG5H
CONFIG6L
CONFIG6H
CONFIG7L
CONFIG7H
SUMMARY OF CODE PROTECTION REGISTERS
MEMORY SIZE/DEVICE
CODE-PROTECTED PROGRAM MEMORY FOR PIC18F2450/4450
(PIC18F2450/4450)
Unimplemented
Unimplemented
Unimplemented
16 Kbytes
Boot Block
Read ‘0’s
Read ‘0’s
Read ‘0’s
Block 0
Block 1
Bit 7
—
—
—
—
—
—
EBTRB
WRTB
Bit 6
CPB
—
—
—
Preliminary
000000h
0007FFh
000FFFh
001000h
001FFFh
002000h
003FFFh
1FFFFFh
Address
WRTC
Range
Bit 5
—
—
—
—
—
Each of the three blocks has three code protection bits
associated with them. They are:
• Code-Protect bit (CPn)
• Write-Protect bit (WRTn)
• External Block Table Read bit (EBTRn)
Figure 18-5 shows the program memory organization
for 24 and 32-Kbyte devices and the specific code
protection bit associated with each block. The actual
locations of the bits are summarized in Table 18-3.
Bit 4
—
—
—
—
—
—
(Unimplemented Memory Space)
Block Code Protection
CPB, WRTB, EBTRB
CP0, WRT0, EBTR0
CP1, WRT1, EBTR1
Bit 3
—
—
—
—
—
—
Controlled By:
Bit 2
© 2007 Microchip Technology Inc.
—
—
—
—
—
—
EBTR1
WRT1
Bit 1
CP1
—
—
—
EBTR0
WRT0
Bit 0
CP0
—
—
—