PIC16C54B/C54C/CR54B/CR54C/C55A/C56A/CR56A/C57C/CR57C/C58B/CR58B
19.5
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
Lowercase subscripts (pp) and their meanings:
pp
T
Time
2
to
mc
osc
os
MCLR
ck
cy
drt
io
CLKOUT
cycle time
device reset timer
I/O port
oscillator
OSC1
t0
T0CKI
wdt
watchdog timer
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 19-1: LOAD CONDITIONS -
PIC16C54B/C54C/CR54B/CR54C/C55A/C56A/CR56A/C57C/CR57C/C58B/CR58B,
PIC16CR5X
Pin
CL = 50 pF for all pins except OSC2
CL
15 pF for OSC2 in XT, HS or LP
options when external clock
is used to drive OSC1
VSS
1998 Microchip Technology Inc.
Preliminary
DS30453B-page 177
MICROCHIP [ MICROCHIP ]
