Datasheet

© 2007 Microchip Technology Inc. DS39597C-page 93
PIC16F72
14.3 Timing Parameter Symbology
The timing parameter symbols have been created following one of the following formats:
FIGURE 14-3: LOAD CONDITIONS
1. TppS2ppS
3. T
CC:ST (I
2
C specifications only)
2. TppS
4. Ts (I
2
C specifications only)
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 PPeriod
HHigh RRise
I Invalid (Hi-impedance) V Valid
L Low Z Hi-impedance
I
2
C only
AA output access High High
BUF Bus free Low Low
TCC:ST (I
2
C specifications only)
CC
HD Hold SU Setup
ST
DAT DATA input hold STO STOP condition
STA START condition
VDD/2
C
L
RL
Pin Pin
V
SS
VSS
CL
RL = 464Ω
C
L = 50 pF for all pins except OSC2
15 pF for OSC2 output
Load Condition 1
Load Condition 2