PIC16C54-20I/SS Microchip Technology, PIC16C54-20I/SS Datasheet - Page 112

• Manufacturer Part Number: PIC16C54-20I/SS
• Description: ROM-Based 8-Bit CMOS Microcontroller Series
• Manufacturer: Microchip Technology

PIC16C5X
15.5
The timing parameter symbols have been created with one of the following formats:
FIGURE 15-1:
DS30453D-page 110
1. TppS2ppS
2. TppS
T
Lowercase letters (pp) and their meanings:
pp
Uppercase letters and their meanings:
S
ck CLKOUT
F
cy cycle time
drt device reset timer
io
F
H
I
L
2
to
Frequency
I/O port
Fall
High
Low
Invalid (Hi-impedance)
Timing Parameter Symbology and Load Conditions
Pin
LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS - PIC16C54A
V
SS
C
L
Preliminary
C
L
= 50 pF
T
mc MCLR
osc oscillator
os OSC1
t0
wdt watchdog timer
P
R
V
Z
0 -15 pF for OSC2 in XT, HS or LP modes when
Time
Hi-impedance
T0CKI
Period
Valid
Rise
for all pins and OSC2 for RC modes
external clock is used to drive OSC1
2002 Microchip Technology Inc.