PIC18F442-I/PT Microchip Technology Inc., PIC18F442-I/PT Datasheet - Page 46

• Manufacturer Part Number: PIC18F442-I/PT
• Description: Microcontroller; 16 KB Flash; 768 RAM; 256 EEPROM; 36 I/O; 40-Pin-TQFP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F442-I/PT

• A/d Inputs: 8-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin TQFP
• Programmable Memory: 16K Bytes
• Ram Size: 768 Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part

PIC18FXX2
FIGURE 4-7:
DS39564C-page 44
When a = 1,
the BSR is used to specify the
RAM location that the
instruction uses.
BSR<3:0>
= 0000
= 0001
= 0010
= 0011
= 0100
= 0101
= 0110
= 1110
= 1111
DATA MEMORY MAP FOR PIC18F252/452
Bank 14
Bank 15
Bank 4
Bank 5
Bank 6
Bank 0
Bank 1
Bank 2
Bank 3
to
FFh
FFh
FFh
FFh
FFh
00h
00h
00h
00h
00h
FFh
00h
Data Memory Map
Access RAM
Read ’00h’
Unused
Unused
GPR
GPR
GPR
GPR
GPR
GPR
SFR
100h
1FFh
EFFh
F7Fh
F80h
FFFh
000h
07Fh
080h
0FFh
200h
300h
3FFh
400h
4FFh
500h
5FFh
600h
F00h
2FFh
When a = 0,
the BSR is ignored and the
Access Bank is used.
The first 128 bytes are General
Purpose RAM (from Bank 0).
The second 128 bytes are
Special
(from Bank 15).
© 2006 Microchip Technology Inc.
Access RAM high
Access RAM low
Access Bank
Function
(SFR’s)
Registers
FFh
00h
7Fh
80h