Microchip Technology AC244049 Data Sheet

DS41341E-page 19

PIC16F72X/PIC16LF72X

2.0

MEMORY ORGANIZATION

2.1

Program Memory Organization

The PIC16F72X/PIC16LF72X has a 13-bit program
counter capable of addressing a 2K x 14 program
memory space for the PIC16F722/LF722
(0000h-07FFh), a 4K x 14 program memory space for
the PIC16F723/LF723 and PIC16F724/LF724
(0000h-0FFFh) and an 8K x 14 program memory space
for the PIC16F726/LF726 and PIC16F727/LF727
(0000h-1FFFh). Accessing a location above the
memory boundaries for the PIC16F722/LF722 will
cause a wrap-around within the first 2K x 14 program
memory space. Accessing a location above the
memory boundaries for the PIC16F723/LF723 and
PIC16F724/LF724 will cause a wrap-around within the
first 4K x 14 program memory space. The Reset vector
is at 0000h and the interrupt vector is at 0004h.

FIGURE 2-1:

PROGRAM MEMORY MAP
AND STACK FOR THE
PIC16F722/LF722

FIGURE 2-2:

PROGRAM MEMORY MAP
AND STACK FOR THE
PIC16F723/LF723 AND
PIC16F724/LF724

PC<12:0>

0000h

0004h

Stack Level 1

Stack Level 8

Reset Vector

Interrupt Vector

CALL, RETURN
RETFIE, RETLW

Stack Level 2

0005h

On-chip

Program

Memory

Page 0

07FFh

Wraps to Page 0

0800h

0FFFh
1000h

17FFh
1800h

1FFFh