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PIC16F877T-20PQ 参数 Datasheet PDF下载

PIC16F877T-20PQ图片预览
型号: PIC16F877T-20PQ
PDF下载: 下载PDF文件 查看货源
内容描述: 8位微控制器\n [8-Bit Microcontroller ]
分类和应用: 微控制器
文件页数/大小: 200 页 / 3338 K
品牌: ETC [ ETC ]
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PIC16F87X  
15.4  
Timing Parameter Symbology  
The timing parameter symbols have been created fol-  
lowing one of the following formats:  
(I2C specifications only)  
(I2C specifications only)  
1. TppS2ppS  
2. TppS  
T
3. TCC:ST  
4. Ts  
F
Frequency  
Lowercase letters (pp) and their meanings:  
pp  
cc  
T
Time  
CCP1  
CLKOUT  
CS  
osc  
rd  
OSC1  
RD  
ck  
cs  
di  
rw  
sc  
ss  
t0  
RD or WR  
SCK  
SDI  
do  
dt  
SDO  
SS  
Data in  
I/O port  
MCLR  
T0CKI  
T1CKI  
WR  
io  
t1  
mc  
wr  
Uppercase letters and their meanings:  
S
F
H
I
Fall  
P
R
V
Z
Period  
High  
Rise  
Invalid (Hi-impedance)  
Low  
Valid  
L
Hi-impedance  
I2C only  
AA  
output access  
Bus free  
High  
Low  
High  
Low  
BUF  
TCC:ST (I2C specifications only)  
CC  
HD  
ST  
DAT  
STA  
Hold  
SU  
Setup  
DATA input hold  
START condition  
STO  
STOP condition  
FIGURE 15-4: LOAD CONDITIONS  
Load condition 1  
Load condition 2  
VDD/2  
RL  
CL  
CL  
Pin  
Pin  
VSS  
VSS  
RL = 464Ω  
CL = 50 pF  
15 pF  
for all pins except OSC2, but including PORTD and PORTE outputs as ports  
for OSC2 output  
Note: PORTD and PORTE are not implemented on the 28-pin devices.  
DS30292B-page 158  
1999 Microchip Technology Inc.