Datasheet
SN74CB3T3245
www.ti.com
SCDS136A –OCTOBER 2003–REVISED AUGUST 2012
Electrical Characteristics
(1)
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
(2)
MAX UNIT
V
IK
V
CC
= 3 V, I
I
= –18 mA –1.2 V
V
OH
See Figure 3 and Figure 4
I
IN
Control inputs V
CC
= 3.6 V, V
IN
= 3.6 V to 5.5 V or GND ±10 μA
V
I
= V
CC
– 0.7 V to 5.5 V ±20
I
I
V
CC
= 3.6 V, Switch ON, V
IN
= V
CC
or GND V
I
= 0.7 V to V
CC
– 0.7 V –40 μA
V
I
= 0 to 0.7 V ±5
I
OZ
(3)
V
CC
= 3.6 V, V
O
= 0 to 5.5 V, V
I
= 0, Switch OFF, V
IN
= V
CC
or GND ±10 μA
I
off
V
CC
= 0, V
O
= 0 to 5.5 V, V
I
= 0, 10 μA
V
I
= V
CC
or GND 40
V
CC
= 3.6 V, I
I/O
= 0,
I
CC
μA
Switch ON or OFF, V
IN
= V
CC
or GND
V
I
= 5.5 V 40
ΔI
CC
(4)
Control inputs V
CC
= 3 V to 3.6 V, One input at V
CC
– 0.6 V, Other inputs at V
CC
or GND 300 μA
C
in
Control inputs V
CC
= 3.3 V, V
IN
= V
CC
or GND 4 pF
C
io(OFF)
V
CC
= 3.3 V, V
I/O
= 5.5 V, 3.3 V, or GND, Switch OFF, V
IN
= V
CC
or GND 5 pF
V
I/O
= 5.5 V or 3.3 V 5
C
io(ON)
V
CC
= 3.3 V, Switch ON, V
IN
= V
CC
or GND pF
V
I/O
= GND 13
I
O
= 24 mA 5 8.5
V
CC
= 2.3 V, TYP at V
CC
= 2.5 V, V
I
= 0
I
O
= 16 mA 5 8.5
r
on
(5)
Ω
I
O
= 64 mA 5 7
V
CC
= 3 V, V
I
= 0
I
O
= 32 mA 5 7
(1) V
IN
and I
IN
refer to control inputs. V
I
, V
O
, I
I
, and I
O
refer to data pins.
(2) All typical values are at V
CC
= 3.3 V (unless otherwise noted), T
A
= 25°C.
(3) For I/O ports, the parameter I
OZ
includes the input leakage current.
(4) This is the increase in supply current for each input that is at the specified TTL voltage level, rather than V
CC
or GND.
(5) Measured by the voltage drop between A and 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 (unless otherwise noted) (see Figure 2)
V
CC
= 2.5 V V
CC
= 3.3 V
FROM TO
± 0.2 V ± 0.3 V
PARAMETER UNIT
(INPUT) (OUTPUT)
MIN MAX MIN MAX
t
pd
(1)
A or B B or A 0.15 0.25 ns
t
en
OE A or B 1 10.5 1 8 ns
t
dis
OE A or B 1 5.5 1 7.5 ns
(1) 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).
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