Datasheet

www.ti.com
PARAMETER MEASUREMENT INFORMATION
t
h
t
su
FromOutput
UnderTest
C =30pF
(seeNote A)
L
LOADCIRCUIT
S1
2xV
CC
Open
GND
500 W
Data
Input
Timing
Input
0V
0V
0V
Input
Output
Waveform1
S1at2xV
(seeNoteB)
CC
Output
Waveform2
S1atGND
(seeNoteB)
V
OL
V
OH
0V
0V
Output
t /t
PLH PHL
Open
TEST S1
Output
Control
(low-level
enabling)
V /2
CC
V /2
CC
V /2
CC
V /2
CC
V /2
CC
500 W
2xV
CC
t /t
PLZ PZL
GND
t /t
PHZ PZH
VOLTAGEWAVEFORMS
ENABLE ANDDISABLETIMES
VOLTAGEWAVEFORMS
PROPAGATIONDELAY TIMES
NOTES: A. C includesprobeandjigcapacitance.
B. Waveform1isforanoutputwithinternalconditionssuchthattheoutputislow,exceptwhendisabledbytheoutputcontrol.
Waveform2isforanoutputwithinternalconditionssuchthattheoutputishigh,exceptwhendisabledbytheoutputcontrol.
C. Allinputpulsesaresuppliedbygeneratorshavingthefollowingcharacteristics:PRR 10MHz,Z =50 ,t 2ns,
t 2ns.
D. Theoutputsaremeasuredoneatatime,withonetransitionpermeasurement.
L
O r
f
£ W ≤
≤
VOLTAGEWAVEFORMS
SETUP ANDHOLDTIMES
V
CC
V
CC
V
CC
V /2
CC
V /2
CC
V
CC
t
PZL
t
PLZ
t
PHZ
t
PZH
V – 0.15V
OH
V +0.15V
OL
V /2
CC
V /2
CC
V
OL
V
CC
V
OH
V /2
CC
V /2
CC
t
PLH
t
PHL
0V
t
W
Input
VOLTAGEWAVEFORMS
PULSEDURATION
V /2
CC
V /2
CC
V
CC
SN54ALVTH16374 , , SN74ALVTH16374
2.5-V/3.3-V 16-BIT EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCES068G – JUNE 1996 – REVISED NOVEMBER 2006
V
CC
= 2.5 V ± 0.2 V
Figure 1. Load Circuit and Voltage Waveforms
10
Submit Documentation Feedback