Datasheet
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Switching Characteristics
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, V
CCA
= 1.5 V ± 0.1 V (see Figure 11 )
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 MIN MAX MIN MAX MIN MAX MIN MAX
t
PLH
2.8 0.7 5.4 0.5 4.6 0.4 3.7 0.3 3.5
A B ns
t
PHL
2.8 0.7 5.4 0.5 4.6 0.4 3.7 0.3 3.5
t
PLH
2.7 0.8 5.4 0.7 5.2 0.6 4.9 0.5 4.7
B A ns
t
PHL
2.7 0.8 5.4 0.7 5.2 0.6 4.9 0.5 4.7
t
PHZ
3.9 1.3 8.5 1.3 7.8 1.1 7.7 1.4 7.6
DIR A ns
t
PLZ
3.9 1.3 8.5 1.3 7.8 1.1 7.7 1.4 7.6
t
PHZ
4.7 1.1 7 1.4 6.9 1.2 6.9 1.7 7.1
DIR B ns
t
PLZ
4.7 1.1 7 1.4 6.9 1.2 6.9 1.7 7.1
t
PZH
(1)
7.4 12.4 12.1 11.8 11.8
DIR A ns
t
PZL
(1)
7.4 12.4 12.1 11.8 11.8
t
PZH
(1)
6.7 13.9 12.4 11.4 11.1
DIR B ns
t
PZL
(1)
6.7 13.9 12.4 11.4 11.1
(1) The enable time is a calculated value derived using the formula shown in the enable times section.
over recommended operating free-air temperature range, V
CCA
= 1.8 V ± 0.15 V (see Figure 11 )
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 MIN MAX MIN MAX MIN MAX MIN MAX
t
PLH
2.7 0.5 5.2 0.4 4.3 0.2 3.4 0.2 3.1
A B ns
t
PHL
2.7 0.5 5.2 0.4 4.3 0.2 3.4 0.2 3.1
t
PLH
2.4 0.7 4.7 0.5 4.4 0.5 4 0.4 3.8
B A ns
t
PHL
2.4 0.7 4.7 0.5 4.4 0.5 4 0.4 3.8
t
PHZ
3.7 1.3 8.1 0.7 6.9 1.4 5.3 1.1 5.2
DIR A ns
t
PLZ
3.7 1.3 8.1 0.7 6.9 1.4 5.3 1.1 5.2
t
PHZ
4.4 1.3 5.8 1.3 5.9 0.8 5.7 1.5 5.9
DIR B ns
t
PLZ
4.4 1.3 5.8 1.3 5.9 0.8 5.7 1.5 5.9
t
PZH
(1)
6.8 10.5 10.3 9.7 9.7
DIR A ns
t
PZL
(1)
6.8 10.5 10.3 9.7 9.7
t
PZH
(1)
6.4 13.3 11.2 8.7 8.3
DIR B ns
t
PZL
(1)
6.4 13.3 11.2 8.7 8.3
(1) The enable time is a calculated value derived using the formula shown in the enable times section.
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