Datasheet

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Recommended Operating Conditions
(1) (2) (3)
SN74AVCH2T45
DUAL-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES582F – JULY 2004 – REVISED NOVEMBER 2007
V
CCI
V
CCO
MIN MAX UNIT
V
CCA
Supply voltage 1.2 3.6 V
V
CCB
Supply voltage 1.2 3.6 V
1.2 V to 1.95 V V
CC
× 0.65
High-level
V
IH
Data inputs
(4)
1.95 V to 2.7 V 1.6 V
input voltage
2.7 V to 3.6 V 2
1.2 V to 1.95 V V
CCI
× 0.35
Low-level
V
IL
Data inputs
(4)
1.95 V to 2.7 V 0.7 V
input voltage
2.7 V to 3.6 V 0.8
1.2 V to 1.95 V V
CCA
× 0.65
High-level DIR
V
IH
1.95 V to 2.7 V 1.6 V
input voltage (referenced to V
CCA
)
(5)
2.7 V to 3.6 V 2
1.2 V to 1.95 V V
CCA
× 0.35
Low-level DIR
V
IL
1.95 V to 2.7 V 0.7 V
input voltage (referenced to V
CCA
)
(5)
2.7 V to 3.6 V 0.8
V
I
Input voltage 0 3.6 V
Active state 0 V
CCO
V
O
Output voltage V
3-state 0 3.6
1.2 V – 3
1.4 V to 1.6 V – 6
I
OH
High-level output current 1.65 V to 1.95 V – 8 mA
2.3 V to 2.7 V – 9
3 V to 3.6 V – 12
1.2 V 3
1.4 V to 1.6 V 6
I
OL
Low-level output current 1.65 V to 1.95 V 8 mA
2.3 V to 2.7 V 9
3 V to 3.6 V 12
Δ t/ Δ v Input transition rise or fall rate 5 ns/V
T
A
Operating free-air temperature – 40 85 ° C
(1) V
CCI
is the V
CC
associated with the input port.
(2) V
CCO
is the V
CC
associated with the output port.
(3) All unused data inputs of the device must be held at V
CCI
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
(4) For V
CCI
values not specified in the data sheet, V
IH
min = V
CCI
× 0.7 V, V
IL
max = V
CCI
× 0.3 V.
(5) For V
CCA
values not specified in the data sheet, V
IH
min = V
CCA
× 0.7 V, V
IL
max = V
CCA
× 0.3 V.
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