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PIC16F687-I/ML 参数 Datasheet PDF下载

PIC16F687-I/ML图片预览
型号: PIC16F687-I/ML
PDF下载: 下载PDF文件 查看货源
内容描述: 20引脚基于闪存的8位CMOS微控制器采用纳瓦技术 [20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology]
分类和应用: 闪存微控制器和处理器外围集成电路时钟
文件页数/大小: 294 页 / 5272 K
品牌: MICROCHIP [ MICROCHIP ]
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PIC16F631/677/685/687/689/690  
FIGURE 2-2:  
PROGRAM MEMORY MAP  
AND STACK FOR THE  
PIC16F685/689/690  
2.0  
2.1  
MEMORY ORGANIZATION  
Program Memory Organization  
The PIC16F631/677/685/687/689/690 has a 13-bit  
program counter capable of addressing an 8K x 14  
program memory space. Only the first 1K x 14  
(0000h-03FFh) is physically implemented for the  
PIC16F631, the first 2K x 14 (0000h-07FFh) for the  
PIC16F677/PIC16F687, and the first 4K x 14  
(0000h-0FFFh) for the PIC16F685/PIC16F689/  
PC<12:0>  
13  
CALL, RETURN  
RETFIE, RETLW  
Stack Level 1  
Stack Level 2  
PIC16F690. Accessing  
a location above these  
boundaries will cause a wraparound. The Reset vector  
is at 0000h and the interrupt vector is at 0004h (see  
Figures 2-1 through 2-3).  
Stack Level 8  
Reset Vector  
0000h  
FIGURE 2-1:  
PROGRAM MEMORY MAP  
AND STACK FOR THE  
PIC16F631  
0004h  
0005h  
Interrupt Vector  
On-chip Program  
Memory  
PC<12:0>  
13  
CALL, RETURN  
RETFIE, RETLW  
0FFFh  
1000h  
Stack Level 1  
Stack Level 2  
Access 0-FFFh  
1FFFh  
Stack Level 8  
Reset Vector  
0000h  
0004h  
0005h  
Interrupt Vector  
On-chip Program  
Memory  
03FFh  
0400h  
Access 0-3FFh  
1FFFh  
© 2007 Microchip Technology Inc.  
DS41262D-page 25  
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