Datasheet

SN74CBT1G125
SINGLE FET BUS SWITCH
SCDS046G – FEBRUARY 1998 – REVISED JANUARY 2003
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range, V
CC
–0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
(see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous channel current 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I/O
< 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
JA
(see Note 2): DBV package 206°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DCK package 252°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 3)
MIN MAX UNIT
V
CC
Supply voltage 4 5.5 V
V
IH
High-level control input voltage 2 V
V
IL
Low-level control input voltage 0.8 V
T
A
Operating free-air temperature –40 85 °C
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 MIN TYP
‡
MAX UNIT
V
IK
V
CC
= 4.5 V, I
I
= –18 mA –1.2 V
I
I
V
CC
= 5.5 V, V
I
= 5.5 V or GND ±1 µA
I
CC
V
CC
= 5.5 V, I
O
= 0, V
I
= V
CC
or GND 1 µA
C
i
Control input V
I
= 3 V or 0 3 pF
C
io(OFF)
V
O
= 3 V or 0, OE = V
CC
4 pF
§
V
CC
= 4 V, TYP at V
CC
= 4 V, V
I
= 2.4 V, I
I
= 15 mA 14 20
r
§
V
I
=0
I
I
= 64 mA 5 7
Ω
r
on
§
V
CC
= 4.5 V
V
I
=
0
I
I
= 30 mA 5 7
Ω
V
I
= 2.4 V, I
I
= 15 mA 10 15
‡
All typical values are at V
CC
= 5 V (unless otherwise noted), T
A
= 25°C.
§
Measured by the voltage drop between the A and the B terminals at the indicated current through the switch. On-state resistance is determined
by the lower of the voltages of the two (A or B) terminals.
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 4 V
V
CC
= 5 V
± 0.5 V
UNIT
(INPUT)
(OUTPUT)
MIN MAX MIN MAX
t
pd
¶
A or B B or A 0.35 0.25 ns
t
en
OE
A or B 5.5 1.6 4.9 ns
t
dis
OE
A or B 4.5 1 4.2 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).