PIC12CE67X
12.5
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
CLKOUT
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
I
2
C only
AA
BUF
output access
Bus free
T
Time
3. T
CC
:
ST
4. Ts
(I
2
C speci铿乧ations only)
(I
2
C speci铿乧ations only)
osc
rd
rw
sc
ss
t0
t1
wr
OSC1
RD
RD or WR
SCK
SS
T0CKI
T1CKI
WR
P
R
V
Z
High
Low
Period
Rise
Valid
Hi-impedance
High
Low
T
CC
:
ST
(I
2
C speci铿乧ations only)
CC
HD
Hold
ST
DAT
DATA input hold
STA
START condition
SU
STO
Setup
STOP condition
FIGURE 12-1: LOAD CONDITIONS
Load condition 1
V
DD
/2
Load condition 2
R
L
Pin
V
SS
R
L
= 464鈩?/div>
C
L
= 50 pF
15 pF
C
L
Pin
V
SS
C
L
for all pins except OSC2
for OSC2 output
漏
1998 Microchip Technology Inc.
Preliminary
DS40181B-page 89
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