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Electrical Characteristics (continued)
(1) (2)
Switching Characteristics
SN74AVCH2T45
DUAL-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES582F – JULY 2004 – REVISED NOVEMBER 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
A port 0 V 0 V to 3.6 V ± 0.1 ± 1 ± 5
I
off
V
I
or V
O
= 0 to 3.6 V µ A
B port 0 V to 3.6 V 0 V ± 0.1 ± 1 ± 5
B port 0 V 3.6 V ± 0.5 ± 2.5 ± 5
V
O
= V
CCO
or GND,
I
OZ
µ A
V
I
= V
CCI
or GND
A port 3.6 V 0 V ± 0.5 ± 2.5 ± 5
1.2 V to 3.6 V 1.2 V to 3.6 V 10
I
CCA
V
I
= V
CCI
or GND, I
O
= 0 0 V 3.6 V – 2 µ A
3.6 V 0 V 10
1.2 V to 3.6 V 1.2 V to 3.6 V 10
I
CCB
V
I
= V
CCI
or GND, I
O
= 0 0 V 3.6 V 10 µ A
3.6 V 0 V – 2
I
CCA
+ I
CCB
V
I
= V
CCI
or GND, I
O
= 0 1.2 V to 3.6 V 1.2 V to 3.6 V 20 µ A
Control
C
i
V
I
= 3.3 V or GND 3.3 V 3.3 V 2.5 pF
inputs
C
io
A or B port V
O
= 3.3 V or GND 3.3 V 3.3 V 6 pF
(1) V
CCO
is the V
CC
associated with the output port.
(2) V
CCI
is the V
CC
associated with the input port.
over recommended operating free-air temperature range, V
CCA
= 1.2 V (see Figure 11 )
V
CCB
= 1.2 V V
CCB
= 1.5 V V
CCB
= 1.8 V V
CCB
= 2.5 V V
CCB
= 3.3 V
FROM TO
PARAMETER UNIT
(INPUT) (OUTPUT)
TYP TYP TYP TYP TYP
t
PLH
3.1 2.6 2.4 2.2 2.2
A B ns
t
PHL
3.1 2.6 2.4 2.2 2.2
t
PLH
3.4 3.1 3 2.9 2.9
B A ns
t
PHL
3.4 3.1 3 2.9 2.9
t
PHZ
5.2 5.2 5.1 5 4.8
DIR A ns
t
PLZ
5.2 5.2 5.1 5 4.8
t
PHZ
5 4 3.8 2.8 3.2
DIR B ns
t
PLZ
5 4 3.8 2.8 3.2
t
PZH
(1)
8.4 7.1 6.8 5.7 6.1
DIR A ns
t
PZL
(1)
8.4 7.1 6.8 5.7 6.1
t
PZH
(1)
8.3 7.8 7.5 7.2 7
DIR B ns
t
PZL
(1)
8.3 7.8 7.5 7.2 7
(1) The enable time is a calculated value derived using the formula shown in the enable times section.
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