TCA9406 Datasheet, PDF (12/19 Pages) Texas Instruments – 2-BIT BIDIRECTIONAL 1MHz, I2C BUS AND SMBUS VOLTAGE-LEVEL TRANSLATOR

TCA9406
SCPS221 – JULY 2010
V_CCI
PARAMETER MEASUREMENT INFORMATION
DUT
IN OUT
V_CCO
15 pF
1 MW
V_CCI
DUT
IN
OUT
V_CCO
15 pF
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1 MW
DATA RATE, PULSE DURATION, PROPAGATION DELAY,
OUTPUT RISE AND FALL TIME MEASUREMENT USING
A PUSH-PULL DRIVER
From Output
Under Test
15 pF
DATA RATE, PULSE DURATION, PROPAGATION DELAY,
OUTPUT RISE AND FALL TIME MEASUREMENT USING
AN OPEN-DRAIN DRIVER
50 kW ^S1
2 × V_CCO
Open
50 kW
LOAD CIRCUIT FOR ENABLE/DISABLE
TIME MEASUREMENT
TEST
t_PZL/t_PLZ
t_PHZ/t_PZH
S1
2 × V_CCO
Open
Input
Input
t_PLH
Output
t_w
V_CCI
V_CCI/2
V_CCI/2
0V
VOLTAGE WAVEFORMS
PULSE DURATION
Output
Control
(low-level
enabling)
V_CCI/2
V_CCO/2
t_r
V_CCI/2
V_CCI
0V
t_PHL
0.9 y V_CCO
0.1 y V_CCO
V_OH
V_CCO/2
V_OL
t_f
Output
Waveform 1
S1 at 2 × V_CCO
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
t_PZL
t_PZH
V_CCA/2
V_CCA/2
V_CCA
0V
0.1 y V_CCO
0.9 y V_CCO
t_PLZ
V_CCO/2
t_PHZ
V_CCO/2
V_CCO
V_OL
V_OH
0V
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
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: PRRv10 MHz, Z_O = 50 Ω, dv/dt ≥ 1 V/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.
H. V_CCI is the V_CC associated with the input port.
I. V_CCO is the V_CC associated with the output port.
J. All parameters and waveforms are not applicable to all devices.
Figure 2. Load Circuit and Voltage Waveforms
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