
PIC16F946
DS41265A-page 238
Preliminary
2005 Microchip Technology Inc.
19.5
Timing Parameter Symbology
The timing parameter symbols have been created with
one of the following formats:
FIGURE 19-2:
LOAD CONDITIONS
1. TppS2ppS
2. TppS
T
F
Frequency
T
Time
Lowercase letters (pp) and their meanings:
pp
cc
CCP1
osc
OSC1
ck
CLKO
rd
RD
cs
CS
rw
RD or WR
di
SDI
sc
SCK
do
SDO
ss
SS
dt
Data in
t0
T0CKI
io
I/O port
t1
T1CKI
mc
MCLR
wr
WR
Uppercase letters and their meanings:
S
FFall
P
Period
HHigh
R
Rise
I
Invalid (High-impedance)
V
Valid
L
Low
Z
High-impedance
VDD/2
CL
RL
PIN
VSS
CL
RL = 464
Ω
CL = 50 pF for all pins
15 pF for OSC2 output
Load Condition 1
Load Condition 2
Legend: