
PIC18F2XJXX/4XJXX FAMILY
DS39687E-page 6
2009 Microchip Technology Inc.
FIGURE 2-4:
MEMORY MAPS FOR PIC18F2XJXX/4XJXX FAMILY DEVICES(1)
Note 1:
Sizes of memory areas are not to scale. Sizes of accessible memory areas are enhanced to show detail.
2:
Addresses, 300006h and 300007h, are unimplemented in PIC18F45J10 family devices.
Code Memory
Unimplemented
Read as ‘0’
Configuration
Space
000000h
1FFFFFh
3FFFFFh
2FFFFFh
003FFFh
007FFFh
200000h
300000h
300007h(2)
3FFFFEh
Configuration
Words
Device IDs
Configuration
Space
Memory spaces are unimplemented or unavailable in normal execution mode and read as ‘0’.
Memory spaces are read-only (device IDs) or cannot be directly programmed by ICSP (Configuration Words).
Flash Conf. Words
PIC18FX4JXX
(16 Kbytes)
Code Memory
Unimplemented
Read as ‘0’
Configuration
Space
Configuration
Words
Device IDs
Configuration
Space
Flash Conf. Words
PIC18FX6JXX
(64 Kbytes)
Code Memory
Unimplemented
Read as ‘0’
Configuration
Space
Configuration
Words
Device IDs
Configuration
Space
Flash Conf. Words
PIC18FX5JXX
(32 Kbytes)
Code Memory
Unimplemented
Read as ‘0’
Configuration
Space
Configuration
Words
Device IDs
Configuration
Space
Flash Conf. Words
PIC18FX7JXX
(128 Kbytes)
01FFFFh
00FFFFh