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Electrical Characteristics
(1) (2)
Switching Characteristics
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) (continued)
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
V
O
= V
CCO
or
A or B port GND, OE = V
IH
3.6 V 3.6 V ± 0.5 ± 2.5 ± 5
V
I
= V
CCI
or GND
I
OZ
(3)
μ A
B port V
O
= V
CCO
or OE = 0 V 3.6 V ± 5
GND, don't
A port 3.6 V 0 V ± 5
V
I
= V
CCI
or GND care
1.2 V to 3.6 V 1.2 V to 3.6 V 8
I
CCA
V
I
= V
CCI
or GND, I
O
= 0 0 V 3.6 V –2 μ A
3.6 V 0 V 8
1.2 V to 3.6 V 1.2 V to 3.6 V 8
I
CCB
V
I
= V
CCI
or GND, I
O
= 0 0 V 3.6 V 8 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 16 μ A
Control
C
i
V
I
= 3.3 V or GND 3.3 V 3.3 V 3.5 4.5 pF
inputs
C
io
A or B port V
O
= 3.3 V or GND 3.3 V 3.3 V 6 7 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.
(3) For I/O ports, the parameter I
OZ
includes the input leakage current.
over recommended operating free-air temperature range, V
CCA
= 1.2 V (see Figure 1 )
V
CCB
= 1.5 V V
CCB
= 1.8 V V
CCB
= 2.5 V V
CCB
= 3.3 V
V
CCB
= 1.2 V
FROM TO
± 0.1 V ± 0.15 V ± 0.2 V ± 0.3 V
PARAMETER UNIT
(INPUT) (OUTPUT)
TYP TYP TYP TYP TYP
t
PLH
3.4 2.9 2.7 2.6 2.8
A B ns
t
PHL
3.4 2.9 2.7 2.6 2.8
t
PLH
3.6 3.1 2.8 2.6 2.6
B A ns
t
PHL
3.6 3.1 2.8 2.6 2.6
t
PZH
5.6 4.7 4.3 3.9 3.7
OE A ns
t
PZL
5.6 4.7 4.3 3.9 3.7
t
PZH
5 4.3 3.9 3.6 3.6
OE B ns
t
PZL
5 4.3 3.9 3.6 3.6
t
PHZ
6.2 5.2 5.2 4.3 4.8
OE A ns
t
PLZ
6.2 5.2 5.2 4.3 4.8
t
PHZ
5.9 5.1 5 4.7 5.5
OE B ns
t
PLZ
5.9 5.1 5 4.7 5.5
6
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