PIC18F2455-I/SP Microchip Technology Inc., PIC18F2455-I/SP Datasheet - Page 62

• 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.

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

PIC18F2450/4450
FIGURE 5-5:
DS39760A-page 60
Note 1:
BSR<3:0>
= 0000
= 0001
= 0010
= 0011
= 0100
= 0101
= 1110
= 1111
This bank also serve as RAM buffer for USB operation. See Section 5.3.1 “USB RAM” for more
information.
DATA MEMORY MAP FOR PIC18F2450/4450 DEVICES
Bank 14
Bank 0
Bank 1
Bank 2
Bank 3
Bank 4
Bank 5
Bank 15
to
FFh
FFh
FFh
FFh
FFh
FFh
FFh
00h
00h
00h
00h
00h
00h
00h
Data Memory Map
Access RAM
Read as 00h
Read as 00h
Read as 00h
Advance Information
Unused
Unused
Unused
Unused
GPR
GPR
GPR
SFR
(1)
000h
05Fh
060h
0FFh
100h
1FFh
200h
2FFh
300h
3FFh
400h
4FFh
800h
EFFh
F00h
F5Fh
F60h
FFFh
When a = 0:
When a = 1:
The BSR is ignored and the
Access Bank is used.
The first 96 bytes are
general purpose RAM
(from Bank 0).
The remaining 160 bytes are
Special Function Registers
(from Bank 15).
The BSR specifies the bank
used by the instruction.
© 2006 Microchip Technology Inc.
Access RAM High
Access RAM Low
Access Bank
(SFRs)
FFh
00h
5Fh
60h