TXB0304_15 Datasheet, PDF (8/25 Pages) Texas Instruments – 4-Bit Bidirectional Level-Shifter/Voltage Translator

TXB0304
SCES831E – SEPTEMBER 2011 – REVISED NOVEMEBER 2015
7 Parameter Measurement Information
From Output
Under Test
C_L
50 k
From Output
Under Test
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50 kΩ ^S1
2 × V_CCO
Open
15 pF 50 kΩ
LOAD CIRCUIT FOR MAX DATA RATE,
PULSE DURATION PROPAGATION
DELAY OUTPUT RISE AND FALL TIME
MEASUREMENT
LOAD CIRCUIT FOR
ENABLE/DISABLE
TIME MEASUREMENT
TEST
t_PZL/t_PLZ
t_PHZ/t_PZH
S1
2 × V_CCO
Open
Input
V_CCI/2
t_PLH
Output
V_CCO/2
t_r
V_CCI/2
V_CCI
0V
t_PHL
0.9 x V_CCO
0.1 x V_CCO
V_OH
V_CCO/2
V_OL
t_f
Input
t_W
V_CCI/2
V_CCI/2
VOLTAGE WAVEFORMS
PULSE DURATION
V_CCI
0V
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
A. C_L includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR 10 MHz, Z_O = 50 Ω, dv/dt ≥ 1
V/ns.
C. The outputs are measured one at a time, with one transition per measurement.
D. t_PLH and t_PHL are the same as t_pd.
E. V_CCI is the V_CC associated with the input port.
F. V_CCO is the V_CC associated with output port.
G. All parameters and waveforms are not applicable to all devices.
Figure 2. Load Circuits and Voltage Waveforms
8
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