PIC18F2455-I/SP Microchip Technology Inc., PIC18F2455-I/SP Datasheet - Page 208
PIC18F2455-I/SP
Manufacturer Part Number
PIC18F2455-I/SP
Description
Microcontroller; 24 KB Flash; 2048 RAM; 256 EEPROM; 24 I/O; 28-Pin-SPDIP
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F2455-ISP.pdf
(320 pages)
Specifications of PIC18F2455-I/SP
A/d Inputs
10-Channel, 10-Bit
Comparators
2
Cpu Speed
12 MIPS
Eeprom Memory
256 Bytes
Input Output
23
Interface
I2C/SPI/USART/USB
Memory Type
Flash
Number Of Bits
8
Package Type
28-pin SPDIP
Programmable Memory
24K Bytes
Ram Size
2K Bytes
Speed
48 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC18F2455-I/SP
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- Current page: 208 of 320
- Download datasheet (6Mb)
PIC18F2450/4450
18.5
The overall structure of the code protection on the
PIC18 Flash devices differs significantly from other
PICmicro
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:
DS39760A-page 206
300008h
300009h
30000Ah
30000Bh
30000Ch
30000Dh
Legend: Shaded cells are unimplemented.
File Name
Program Verification and
Code Protection
®
devices.
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
Boot Block
16 Kbytes
Read ‘0’s
Read ‘0’s
Read ‘0’s
Block 0
Block 1
Bit 7
—
—
—
—
—
—
EBTRB
WRTB
Bit 6
CPB
—
—
—
Advance Information
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
© 2006 Microchip Technology Inc.
—
—
—
—
—
—
EBTR1
WRT1
Bit 1
CP1
—
—
—
EBTR0
WRT0
Bit 0
CP0
—
—
—
Related parts for PIC18F2455-I/SP
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
20-Pin USB Flash Microcontrollers
Manufacturer:
MICROCHIP [Microchip Technology]
Datasheet:
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
Microcontrollers (MCU) 48KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
Microcontrollers (MCU) 64KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 QFN 9x9x0.9mm T/R
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 TQFP 10x10x1mm T/R
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
128kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm T/
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 QFN 9x9x0.9mm TUBE
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 TQFP 10x10x1mm TRAY
Manufacturer:
Microchip Technology
Part Number:
Description:
128kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm TR
Manufacturer:
Microchip Technology