PIC16C55X(A)
10.4
Timing Parameter Symbology
The timing parameter symbols have been created with one of the following formats:
1. TppS2ppS
2. TppS
T
F
Frequency
Lowercase subscripts (pp) and their meanings:
pp
ck
T
Time
CLKOUT
I/O port
MCLR
os
t0
OSC1
T0CKI
io
mc
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
FIGURE 10-1: LOAD CONDITIONS
Load condition 1
Load condition 2
VDD/2
RL
CL
CL
Pin
Pin
VSS
VSS
RL = 464Ω
CL = 50 pF for all pins except OSC2
15 pF for OSC2 output
1997 Microchip Technology Inc.
Preliminary
DS40143B-page 73
MICROCHIP [ MICROCHIP ]
