Datasheet

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   
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SCDS025R − MAY 1995 − REVISED JANUARY 2004
3
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54CBTD3384 SN74CBTD3384
UNIT
MIN MAX MIN MAX
UNIT
V
CC
Supply voltage 4.5 5.5 4.5 5.5 V
V
IH
High-level control input voltage 2 2 V
V
IL
Low-level control input voltage 0.8 0.8 V
T
A
Operating free-air temperature −55 125 −40 85 °C
In applications with fast edge rates, multiple outputs switching, and operating at high frequencies, the output may have little or no level-shifting
effect.
NOTE 3: All unused control inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54CBTD3384 SN74CBTD3384
UNIT
PARAMETER
TEST CONDITIONS
MIN TYP
MAX MIN TYP
MAX
UNIT
V
IK
V
CC
= 4.5 V, I
I
= −18 mA −1.2 −1.2 V
V
OH
See Figure 2
I
I
V
CC
= 5.5 V, V
I
= 5.5 V or GND ±1 ±1 µA
I
CC
V
CC
= 5.5 V, I
O
= 0, V
I
= V
CC
or GND 1.5 1.5 mA
I
CC
Control inputs
V
CC
= 5.5 V, One input at 3.4 V,
Other inputs at V
CC
or GND
2.5 2.5 mA
C
i
Control inputs V
I
= 3 V or 0 3 3 pF
C
io(OFF)
V
O
= 3 V or 0, OE = V
CC
3.5 3.5 pF
V
I
= 0
I
I
= 64 mA 5 5 7
r
on
§
V
= 4.5 V
V
I
= 0
I
I
= 30 mA 5 5 7
r
on
V
I
= 2.4 V, I
I
= 15 mA 35 35 50
Typical values are at V
CC
= 5 V, T
A
= 25°C.
This is the increase in supply current for each input that is at the specified TTL voltage level, rather than V
CC
or GND.
§
Measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-state resistance is determined by
the lowest voltage of the two (A or B) terminals.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature range, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
SN54CBTD3384 SN74CBTD3384
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN MAX MIN MAX
UNIT
t
pd
A or B B or A 0.25 0.25 ns
t
en
OE
A or B 2.2 9.7 2.3 7 ns
t
dis
OE
A or B 1.5 8.6 1.7 5.3 ns
The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance, when
driven by an ideal voltage source (zero output impedance).