TI380FPAA Datasheet, PDF (10/24 Pages) Texas Instruments – PACKETBLASTERE™

TI380FPAA
PACKETBLASTER ™
SPWS038 – MAY 1997
PARAMETER MEASUREMENT INFORMATION
timing parameters
The timing parameters for all the pins of the TI380FPAA are shown in the following tables and are illustrated
in the accompanying figures. The purpose of these figures and tables is to quantify the timing relationships
among the various signals. The parameters are numbered for convenience.
static signals
The following table lists signals that are not allowed to change dynamically and have no timing associated with
them. They should be strapped high or low as required.
SIGNAL
FUNCTION
MANT0
Test pin for TI manufacturing test†
MANT1
Test pin for TI manufacturing test†
† _{For unit-in-place test}
timing parameter symbology
Timing parameter symbols have been created in accordance with JEDEC standard 100. In order to shorten the
symbols, some of the pin names and other related terminology have been abbreviated as shown below:
DR
DRN
OSC
SCK
DRVR
DRVR
OSCIN
SBCLK
Lower-case subscripts are defined as follows:
RS
VDD
MRESET
VDDL
c
cycle time
d
delay time
h
hold time
w
pulse duration (width)
r
rise time
sk
skew
su
setup time
t
transition time
The following additional letters and phrases are defined as follows:
H
High
L
Low
V
Valid
Z
Falling edge
Rising edge
High impedance
No longer high
No longer low
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