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| PIC16F87XA Datasheet, PDF (183/234 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers | |||
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PIC16F87XA
17.3 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
CLKO
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 (High-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
High-impedance
High
Low
SU
STO
Setup
Stop condition
FIGURE 17-3:
LOAD CONDITIONS
Load Condition 1
VDD/2
Load Condition 2
RL
Pin
CL
Pin
CL
VSS
VSS
RL = 464â¦
CL = 50 pF for all pins except OSC2, but including PORTD and PORTE outputs as ports,
15 pF for OSC2 output
Note: PORTD and PORTE are not implemented on PIC16F873A/876A devices.
 2003 Microchip Technology Inc.
DS39582B-page 181
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