74CBTLV3251PWRG4 Datasheet, PDF (5/19 Pages) Texas Instruments – LOW-VOLTAGE 1-OF-8 FET MULTIPLEXER/DEMULTIPLEXER

SN74CBTLV3251
LOWĆVOLTAGE 1ĆOFĆ8 FET MULTIPLEXER/DEMULTIPLEXER
SCDS054I − MARCH 1998 − REVISED OCTOBER 2003
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
CL
(see Note A)
2 × VCC
RL
S1
Open
GND
RL
LOAD CIRCUIT
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
2 × VCC
GND
VCC
2.5 V ±0.2 V
3.3 V ±0.3 V
CL
30 pF
50 pF
RL
500 Ω
500 Ω
V_∆
0.15 V
0.3 V
Input
tw
VCC/2
VCC/2
VOLTAGE WAVEFORMS
PULSE DURATION
VCC
0V
Timing Input
Data Input
VCC/2
VCC
0V
tsu
th
VCC/2
VCC
VCC/2
0V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Input
VCC/2
VCC/2
VCC
0V
tPLH
Output
VCC/2
tPHL
VOH
VCC/2
VOL
tPHL
tPLH
Output
VCC/2
VOH
VCC/2
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
Output
Control
VCC/2
VCC/2
tPZL
Output
Waveform 1
S1 at 2 × VCC
(see Note B)
VCC/2
tPLZ
VOL + V_∆
tPZH
Output
Waveform 2
S1 at GND
(see Note B)
VCC/2
tPHZ
VOH − V_∆
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
VCC
0V
VCC
VOL
VOH
≈0 V
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.
H. All parameters and waveforms are not applicable to all devices.
Figure 1. Load Circuit and Voltage Waveforms
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