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SN74CBTD3861 Datasheet, PDF (4/6 Pages) Texas Instruments – 10-BIT FET BUS SWITCH WITH LEVEL SHIFTING
SN74CBTD3861
10-BIT FET BUS SWITCH
WITH LEVEL SHIFTING
SCDS084G – JULY 1998 – REVISED JULY 2002
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
CL = 50 pF
(see Note A)
500 Ω S1
500 Ω
7V
Open
GND
TEST
tpd
tPLZ/tPZL
tPHZ/tPZH
S1
Open
7V
Open
LOAD CIRCUIT
Output
Control
1.5 V
3V
1.5 V
0V
Input
1.5 V
3V
1.5 V
0V
tPLH
Output
1.5 V
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
tPHL
1.5 V
VOH
VOL
Output
Waveform 1
S1 at 7 V
(see Note B)
tPZL
tPZH
Output
Waveform 2
S1 at Open
(see Note B)
1.5 V
1.5 V
tPLZ
3.5 V
VOL + 0.3 V
VOL
tPHZ
VOH
VOH – 0.3 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 ≤ 2.5 ns, tf ≤ 2.5 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 1. Load Circuit and Voltage Waveforms
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