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PIC16C71-04/SO 参数 Datasheet PDF下载

PIC16C71-04/SO图片预览
型号: PIC16C71-04/SO
PDF下载: 下载PDF文件 查看货源
内容描述: 8位CMOS微控制器与A / D转换器 [8-Bit CMOS Microcontrollers with A/D Converter]
分类和应用: 转换器微控制器
文件页数/大小: 176 页 / 1596 K
品牌: MICROCHIP [ MICROCHIP ]
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PIC16C71X  
FIGURE 5-4: BLOCK DIAGRAM OF  
RB7:RB4 PINS  
FIGURE 5-5: BLOCK DIAGRAM OF  
RB7:RB4 PINS  
(PIC16C71)  
(PIC16C710/711/715)  
VDD  
VDD  
RBPU(2)  
RBPU(2)  
weak  
weak  
P
P
pull-up  
pull-up  
Data Latch  
Data Latch  
Data bus  
WR Port  
Data bus  
WR Port  
D
Q
D
Q
I/O  
pin(1)  
I/O  
pin(1)  
CK  
TRIS Latch  
CK  
TRIS Latch  
D
Q
D
Q
WR TRIS  
WR TRIS  
TTL  
Input  
Buffer  
TTL  
Input  
Buffer  
CK  
CK  
ST  
Buffer  
ST  
Buffer  
RD TRIS  
RD Port  
RD TRIS  
RD Port  
Latch  
Latch  
Q
D
Q
Q
D
EN  
EN  
Q1  
Set RBIF  
Set RBIF  
From other  
RB7:RB4 pins  
Q
D
D
From other  
RB7:RB4 pins  
RD Port  
Q3  
EN  
EN  
RD Port  
RB7:RB6 in serial programming mode  
RB7:RB6 in serial programming mode  
Note 1: I/O pins have diode protection to VDD and VSS.  
2: TRISB = ’1’ enables weak pull-up if  
RBPU = ’0’ (OPTION<7>).  
Note 1: I/O pins have diode protection to VDD and VSS.  
2: TRISB = ’1’ enables weak pull-up if  
RBPU = ’0’ (OPTION<7>).  
TABLE 5-3:  
PORTB FUNCTIONS  
Name  
Bit#  
Buffer  
Function  
(1)  
RB0/INT  
bit0  
TTL/ST  
Input/output pin or external interrupt input. Internal software  
programmable weak pull-up.  
RB1  
RB2  
RB3  
RB4  
bit1  
bit2  
bit3  
bit4  
TTL  
TTL  
TTL  
TTL  
Input/output pin. Internal software programmable weak pull-up.  
Input/output pin. Internal software programmable weak pull-up.  
Input/output pin. Internal software programmable weak pull-up.  
Input/output pin (with interrupt on change). Internal software programmable  
weak pull-up.  
RB5  
RB6  
RB7  
bit5  
bit6  
bit7  
TTL  
TTL/ST  
TTL/ST  
Input/output pin (with interrupt on change). Internal software programmable  
weak pull-up.  
(2)  
(2)  
Input/output pin (with interrupt on change). Internal software programmable  
weak pull-up. Serial programming clock.  
Input/output pin (with interrupt on change). Internal software programmable  
weak pull-up. Serial programming data.  
Legend: TTL = TTL input, ST = Schmitt Trigger input  
Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt.  
2: This buffer is a Schmitt Trigger input when used in serial programming mode.  
DS30272A-page 28  
1997 Microchip Technology Inc.  
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