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Electrical Characteristics
(1) (2)
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES577D – JUNE 2004 – REVISED JUNE 2007
over recommended operating free-air temperature range (unless otherwise noted)
T
A
= 25 ° C –40 ° C to 85 ° C
PARAMETER TEST CONDITIONS V
CCA
V
CCB
UNIT
MIN TYP MAX MIN MAX
I
OH
= –100 μ A 1.2 V to 3.6 V 1.2 V to 3.6 V V
CCO
– 0.2
I
OH
= –3 mA 1.2 V 1.2 V 0.95
I
OH
= –6 mA 1.4 V 1.4 V 1.05
V
OH
V
I
= V
IH
V
I
OH
= –8 mA 1.65 V 1.65 V 1.2
I
OH
= –9 mA 2.3 V 2.3 V 1.75
I
OH
= –12 mA 3 V 3 V 2.3
I
OL
= 100 μ A 1.2 V to 3.6 V 1.2 V to 3.6 V 0.2
I
OL
= 3 mA 1.2 V 1.2 V 0.15
I
OL
= 6 mA 1.4 V 1.4 V 0.35
V
OL
V
I
= V
IL
V
I
OL
= 8 mA 1.65 V 1.65 V 0.45
I
OL
= 9 mA 2.3 V 2.3 V 0.55
I
OL
= 12 mA 3 V 3 V 0.7
I
I
DIR input V
I
= V
CCA
or GND 1.2 V to 3.6 V 1.2 V to 3.6 V ± 0.025 ± 0.25 ± 1 μ A
V
I
= 0.42 V 1.2 V 1.2 V 25
V
I
= 0.49 V 1.4 V 1.4 V 15
I
BHL
(3)
V
I
= 0.58 V 1.65 V 1.65 V 25 μ A
V
I
= 0.7 V 2.3 V 2.3 V 45
V
I
= 0.8 V 3.3 V 3.3 V 100
V
I
= 0.78 V 1.2 V 1.2 V –25
V
I
= 0.91 V 1.4 V 1.4 V –15
I
BHH
(4)
V
I
= 1.07 V 1.65 V 1.65 V –25 μ A
V
I
= 1.6 V 2.3 V 2.3 V –45
V
I
= 2 V 3.3 V 3.3 V –100
1.2 V 1.2 V 50
1.6 V 1.6 V 125
I
BHLO
(5)
V
I
= 0 to V
CCI
1.95 V 1.95 V 200 μ A
2.7 V 2.7 V 300
3.6 V 3.6 V 500
1.2 V 1.2 V –50
1.6 V 1.6 V –125
I
BHHO
(6)
V
I
= 0 to V
CCI
1.95 V 1.95 V –200 μ A
2.7 V 2.7 V –300
3.6 V 3.6 V –500
(1) V
CCO
is the V
CC
associated with the output port.
(2) V
CCI
is the V
CC
associated with the input port.
(3) The bus-hold circuit can sink at least the minimum low sustaining current at V
IL
max. I
BHL
should be measured after lowering V
IN
to GND
and then raising it to V
IL
max.
(4) The bus-hold circuit can source at least the minimum high sustaining current at V
IH
min. I
BHH
should be measured after raising V
IN
to
V
CC
and then lowering it to V
IH
min.
(5) An external driver must source at least I
BHLO
to switch this node from low to high.
(6) An external driver must sink at least I
BHHO
to switch this node from high to low.
5
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