參數(shù)資料
型號(hào): 16LF628A
廠商: Microchip Technology Inc.
元件分類: 8位微控制器
英文描述: FLASH-Based 8-Bit CMOS Microcontrollers
中文描述: 基于閃存的8位CMOS微控制器
文件頁數(shù): 41/168頁
文件大?。?/td> 3760K
代理商: 16LF628A
2002 Microchip Technology Inc.
Preliminary
DS40044A-page 39
PIC16F627A/628A/648A
FIGURE 5-12:
BLOCK DIAGRAM OF RB4/PGM PIN
Data Latch
TRIS Latch
RD TRISB
Q
D
Q
CK
Q
D
Q
CK
RD PORTB
WR PORTB
WR TRISB
Schmitt
Trigger
PGM input
LVP
Data Bus
RB4/PGM
V
DD
weak pull-up
P
From other
RB<7:4> pins
Q
D
EN
Q
D
EN
Set RBIF
TTL
input
buffer
V
DD
V
SS
Note:
The low voltage programming disables the interrupt-on-change and the weak pull-ups on RB4.
RBPU
Q1
Q3
(Configuration Bit)
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