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SN74ALVC164245
16-BIT 2.5-V TO 3.3-V/3.3-V TO 5-V LEVEL-SHIFTING TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS416P – MARCH 1994 – REVISED NOVEMBER 2005
PARAMETER MEASUREMENT INFORMATION
V
CCB
= 3.3 V
±
0.3 V to V
CCA
= 2.5 V
±
0.2 V
2
×
V
CCA
From Output
Under Test
C
L
= 30 pF
(see Note A)
500
Ω
S1
Open
GND
500
Ω
TEST
t
pd
t
PLZ
/t
PZL
t
PHZ
/t
PZH
S1
Open
2
×
V
CCA
GND
LOAD CIRCUIT
Output
Control
(low-level
enabling)
t
PZL
2.7 V
Input
1.5 V
1.5 V
0V
t
PLH
t
PHL
V
OHA
Output
V
CCA
/2
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
V
CCA
/2
V
OLA
Output
Waveform 2
S1 at GND
(see Note B)
Output
Waveform 1
S1 at 2
×
V
CCA
(see Note B)
t
PZH
2.7 V
1.5 V
1.5 V
0V
t
PLZ
V
CCA
V
CCA
/2
V
OL
+ 0.15 V
V
OLA
t
PHZ
V
OHA
V
OH
− 0.15 V
0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
V
CCA
/2
NOTES: A. C
L
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
O
= 50
Ω,
t
r
≤
2 ns, t
f
≤
2 ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. t
PLZ
and t
PHZ
are the same as t
dis
.
F. t
PZL
and t
PZH
are the same as t
en
.
G. t
PLH
and t
PHL
are the same as t
pd
.
Figure 2. Load Circuit and Voltage Waveforms
9
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