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SN74ALVC164245 Datasheet, PDF (9/20 Pages) Texas Instruments – 16-BIT 3.3-V TO 5-V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
www.ti.com
From Output
Under Test
CL = 30 pF
(see Note A)
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
VCCB = 3.3 V ± 0.3 V to VCCA = 2.5 V ± 0.2 V
500 Ω S1
500 Ω
2 × VCCA
Open
GND
TEST
tpd
tPLZ/tPZL
tPHZ/tPZH
S1
Open
2 × VCCA
GND
LOAD CIRCUIT
Output
Control
(low-level
enabling)
1.5 V
1.5 V
2.7 V
0V
Input
1.5 V
1.5 V
2.7 V
0V
tPLH
tPHL
Output
VCCA/2
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOHA
VCCA/2
VOLA
tPZL
Output
Waveform 1
S1 at 2 × VCCA
(see Note B)
VCCA/2
tPLZ
VCCA
VOL + 0.15 V
VOLA
tPZH
tPHZ
Output
Waveform 2
S1 at GND
(see Note B)
VCCA/2
VOHA
VOH − 0.15 V
0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A. CL 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, ZO = 50 Ω, tr ≤ 2 ns, tf ≤ 2 ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
Figure 2. Load Circuit and Voltage Waveforms
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