PIC18F4539 Datasheet, PDF (270/322 Pages) Microchip Technology – Enhanced FLASH Microcontrollers with Single Phase Induction Motor Control Kernel

PIC18FXX39
23.3 AC (Timing) Characteristics
23.3.1 TIMING PARAMETER SYMBOLOGY
The timing parameter symbols have been created
following one of the following formats:
1. TppS2ppS
2. TppS
T
F
Frequency
Lowercase letters (pp) and their meanings:
pp
cc
CCP1
ck
CLKO
cs
CS
di
SDI
do
SDO
dt
Data in
io
I/O port
mc
MCLR
Uppercase letters and their meanings:
S
F
Fall
H
High
I
Invalid (Hi-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
osc
rd
rw
sc
ss
t0
t1
wr
P
R
V
Z
High
Low
SU
STO
(I²C specifications only)
(I²C specifications only)
Time
OSC1
RD
RD or WR
SCK
SS
T0CKI
T13CKI
WR
Period
Rise
Valid
Hi-impedance
High
Low
Setup
STOP condition
DS30485A-page 268
Preliminary
 2002 Microchip Technology Inc.