PIC16C6X
Applicable Devices 61 62 62A R62 63 R63 64 64A R64 65 65A R65 66 67
16.4 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
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
(I2C specifications only)
(I2C specifications only)
T
Time
osc
OSC1
rd
RD
rw
RD or WR
sc
SCK
ss
SS
t0
T0CKI
t1
T1CKI
wr
WR
P
R
V
Z
High
Low
Period
Rise
Valid
Hi-impedance
High
Low
SU
STO
Setup
STOP condition
FIGURE 16-1: LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS
Load condition 1
Load condition 2
VDD/2
RL
Pin
CL
Pin
RL = 464Ω
CL = 50 pF
15 pF
VSS
for all pins except OSC2/CLKOUT
for OSC2 output
CL
VSS
DS30234D-page 168
© 1997 Microchip Technology Inc.