PIC12F509-I Datasheet, PDF (75/110 Pages) Microchip Technology – 8/14-Pin, 8-Bit Flash Microcontrollers

PIC12F508/509/16F505
10.3 Timing Parameter Symbology and Load Conditions – PIC12F508/509/16F505
The timing parameter symbols have been created following one of the following formats:
1. TppS2ppS
2. TppS
T
F Frequency
Lowercase subscripts (pp) and their meanings:
pp
2
to
ck
CLKOUT
T Time
mc
MCLR
osc
Oscillator
cy
Cycle time
drt
Device Reset Timer
os
OSC1
t0
T0CKI
io
I/O port
wdt
Watchdog Timer
Uppercase letters and their meanings:
S
F
Fall
H
High
P
Period
R
Rise
I
Invalid (high-impedance)
L
Low
V
Valid
Z
High-impedance
FIGURE 10-3:
LOAD CONDITIONS – PIC12F508/509/16F505
Legend:
pin
CL
CL = 50 pF for all pins except OSC2
15 pF for OSC2 in XT, HS or LP
VSS
modes when external clock
is used to drive OSC1
FIGURE 10-4:
OSC1
EXTERNAL CLOCK TIMING – PIC12F508/509/16F505
Q4
Q1
Q2
Q3
Q4
Q1
1
3
3
4
4
2
© 2009 Microchip Technology Inc.
DS41236E-page 75