Datasheet

PIC12F635/PIC16F636/639
DS41232D-page 178 © 2007 Microchip Technology Inc.
15.9 Timing Parameter Symbology
The timing parameter symbols have been created with
one of the following formats:
FIGURE 15-4: LOAD CONDITIONS
1. TppS2ppS
2. TppS
T
F Frequency T Time
Lowercase letters (pp) and their meanings:
pp
cc CCP1 osc OSC1
ck CLKOUT rd RD
cs CS rw RD or WR
di SDI sc SCLK
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 (High-impedance) V Valid
L Low Z High-impedance
V SS
C L
Legend: CL = 50 pF for all pins
15 pF for OSC2 output
Load Condition
Pin