PIC18F2455_09 Datasheet, PDF (387/438 Pages) Microchip Technology – 28/40/44-Pin,High-Performance,Enhanced Flash,USB Microcontrollers with nanoWatt Technology

PIC18F2455/2550/4455/4550
28.4 AC (Timing) Characteristics
28.4.1 TIMING PARAMETER SYMBOLOGY
The timing parameter symbols have been created
using one of the following formats:
1. TppS2ppS
2. TppS
T
F
Frequency
Lowercase letters (pp) and their meanings:
pp
ad
SPP address write
cc
CCP1
ck
CLKO
cs
CS
da
SPP data write
di
SDI
do
SDO
dt
Data in
io
I/O port
Uppercase letters and their meanings:
S
F
Fall
H
High
I
Invalid (High-Impedance)
L
Low
I²C only
AA
output access
BUF
Bus free
TCC:ST (I²C specifications only)
CC
HD
Hold
ST
DAT
DATA input hold
STA
Start condition
3. TCC:ST
4. Ts
T
mc
osc
rd
rw
sc
ss
t0
t1
wr
P
R
V
Z
High
Low
SU
STO
(I²C specifications only)
(I²C specifications only)
Time
MCLR
OSC1
RD
RD or WR
SCK
SS
T0CKI
T13CKI
WR
Period
Rise
Valid
High-Impedance
High
Low
Setup
Stop condition
© 2009 Microchip Technology Inc.
DS39632E-page 385