
TC1270A/70AN/71A
DS22035B-page 4
2007 Microchip Technology Inc.
1.1
AC CHARACTERISTICS
1.1.1
TIMING PARAMETER SYMBOLOGY
The timing parameter symbols have been created
following one of the following formats:
FIGURE 1-1:
TEST LOAD CONDITIONS
1. TppS2ppS
T
F
E
Lowercase letters (pp) and their meanings:
pp
io
Input or Output pin
rx
Receive
bitclk
RX/TX BITCLK
drt
Device Reset Timer
Uppercase letters and their meanings:
S
F
Fall
H
High
I
Invalid (High-impedance)
L
Low
2. TppS
Frequency
Error
T
Time
osc
tx
RST
Oscillator
Transmit
Reset
P
R
V
Z
Period
Rise
Valid
High-impedance
Pin
V
SS
C
L
= 50 pF