PIC16F639 Microchip Technology Inc., PIC16F639 Datasheet - Page 180

• Manufacturer Part Number: PIC16F639
• Description: 8/14-pin Flash-based, 8-bit Cmos Microcontrollers With Nanowatt Technology
• Manufacturer: Microchip Technology Inc.

PIC12F635/PIC16F636/639
15.9
The timing parameter symbols have been created with
one of the following formats:
FIGURE 15-4:
DS41232D-page 178
1. TppS2ppS
2. TppS
T
pp
S
F
Lowercase letters (pp) and their meanings:
cc
ck
cs
di
do
dt
io
mc
Uppercase letters and their meanings:
F
H
I
L
Legend: C
Timing Parameter Symbology
Frequency
CCP1
CLKOUT
CS
SDI
SDO
Data in
I/O port
MCLR
Fall
High
Invalid (High-impedance)
Low
L
Pin
= 50 pF for all pins
Load Condition
15 pF for OSC2 output
LOAD CONDITIONS
V
SS
C
L
T
osc
rd
rw
sc
ss
t0
t1
wr
P
R
V
Z
Time
OSC1
RD
RD or WR
SCLK
SS
T0CKI
T1CKI
WR
Period
Rise
Valid
High-impedance
© 2007 Microchip Technology Inc.