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CF745 数据表(PDF) 74 Page - Microchip Technology

部件名 CF745
功能描述  EPROM/ROM-Based 8-Bit CMOS Microcontroller Series
PDF  217 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

CF745 数据表(HTML) 74 Page - Microchip Technology

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PIC16C5X
PIC16C54/55/56/57
DS30453B-page 74
Preliminary
© 1998 Microchip Technology Inc.
11.6
Timing Parameter Symbology and Load Conditions
The timing parameter symbols have been created following one of the following formats:
1. TppS2ppS
2. TppS
T
F
Frequency
T
Time
Lowercase subscripts (pp) and their meanings:
pp
2
to
mc
MCLR
ck
CLKOUT
osc
oscillator
cy
cycle time
os
OSC1
drt
device reset timer
t0
T0CKI
io
I/O port
wdt
watchdog timer
Uppercase letters and their meanings:
S
F
Fall
P
Period
H
High
R
Rise
I
Invalid (Hi-impedance)
V
Valid
L
Low
Z
Hi-impedance
FIGURE 11-1: LOAD CONDITIONS - PIC16C54/55/56/57
CL
VSS
Pin
CL = 50 pF for all pins except OSC2
15 pF for OSC2 in XT, HS or LP
modes when external clock
is used to drive OSC1



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