Datasheet

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PARAMETER MEASUREMENT INFORMATION
t
h
t
su
From Output
Under Test
C
(see Note A)
L
LOAD CIRCUIT
S1
V
LOAD
Open
GND
R
L
Data Input
Timing Input
0 V
0 V
0 V
t
W
Input
0 V
Input
Output
Waveform 1
S1 at V
(see Note B)
LOAD
Output
Waveform 2
S1 at GND
(see Note B)
V
OL
V
OH
0 V
≈0 V
Output
Output
TEST S1
Output
Control
V
M
V
M
V
M
V
M
V
M
1.8 V 0.15 V±
2.5 V 0.2 V±
3.3 V 0.3 V±
5 V 0.5 V±
1 kΩ
500 Ω
500 Ω
500 Ω
V
CC
R
L
2 × V
CC
2 × V
CC
6 V
2 × V
CC
V
LOAD
C
L
30 pF
30 pF
50 pF
50 pF
0.15 V
0.15 V
0.3 V
0.3 V
V
∆
3 V
V
I
V
CC
/2
V
CC
/2
1.5 V
V
CC
/2
V
M
≤2 ns
≤2 ns
≤2.5 ns
≤2.5 ns
INPUTS
R
L
t /t
r f
V
CC
V
CC
V
CC
t (see Notes E and F)
PZL
V
LOAD
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
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 have the following characteristics: PRR 10 MHz, Z = 50 .
D. The outputs are measured one at a time, with one transition per measurement.
L
O
≤ Ω
E. Because this device has open-drain outputs, t and t are the same as t .
F. t is measured at V .
G. t is measured at V + V .
H. All parameters and waveforms are not applicable to all devices.
PLZ PZL PD
PZL M
PLZ OL ∆
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
V
I
V
I
V
I
V
M
V
M
V /2
LOAD
t
PZL
t
PLZ
t
PHZ
t
PZH
V – V
OH ∆
V + V
OL ∆
V
M
V
M
V
M
V
M
V
OL
V
OH
V
I
V
I
V
OH
V
OL
V
M
V
M
V
M
V
M
t
PLH
t
PHL
t
PLH
t
PHL
t (see Notes E and G)
PLZ
V
LOAD
t /t
PHZ PZH
V
LOAD
SN74LVC2G38
DUAL 2-INPUT NAND GATE
WITH OPEN-DRAIN OUTPUTS
SCES554C – MARCH 2004 – REVISED FEBRUARY 2007
(OPEN DRAIN)
Figure 2. Load Circuit and Voltage Waveforms
6
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