SN54LVTH16373, SN74LVTH16373
3.3-V ABT 16-BIT TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
www.ti.com
SCBS144P–MAY 1992–REVISED NOVEMBER 2006
PARAMETER MEASUREMENT INFORMATION
6 V
Open
GND
TEST
/t
S1
S1
500 Ω
From Output
Under Test
t
Open
6 V
PLH PHL
t
/t
PLZ PZL
C = 50 pF
(see Note A)
t
/t
GND
L
PHZ PZH
500 Ω
2.7 V
0 V
Timing Input
Data Input
1.5 V
LOAD CIRCUIT
t
w
t
t
h
su
2.7 V
0 V
2.7 V
0 V
Input
1.5 V
1.5 V
1.5 V
1.5 V
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
2.7 V
0 V
2.7 V
0 V
Output
Control
1.5 V
1.5 V
1.5 V
1.5 V
Input
t
t
t
PHL
t
t
PLH
PZL
PLZ
Output
Waveform 1
S1 at 6 V
V
V
3 V
OH
1.5 V
1.5 V
1.5 V
1.5 V
t
Output
V
+ 0.3 V
OL
V
OL
(see Note B)
OL
t
t
PZH
PHZ
PHL
PLH
Output
Waveform 2
S1 at GND
V
V
V
OH
OH
V
− 0.3 V
OH
1.5 V
1.5 V
Output
≈0 V
(see Note B)
OL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. C includes probe and jig capacitance.
L
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 Ω, t ≤ 2.5 ns, t ≤ 2.5 ns.
O
r
f
D. The outputs are measured one at a time, with one transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
7
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