Datasheet

PIC18F2450/4450
© 2008 Microchip Technology Inc. DS39760D-page 283
21.4 AC (Timing) Characteristics
21.4.1 TIMING PARAMETER SYMBOLOGY
The timing parameter symbols have been created
using one of the following formats:
1. TppS2ppS
2. TppS
T
F Frequency T Time
Lowercase letters (pp) and their meanings:
pp
mc MCLR
cc CCP1 osc OSC1
ck CLKO wr WR
dt Data in t0 T0CKI
io I/O port t1 T1CKI
:Uppercase Letters and their meanings
S
F Fall P Period
HHigh RRise
I Invalid (High-Impedance) V Valid
L Low Z High-Impedance
High High
Low Low