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Switching Characteristics
Switching Characteristics
SN74AVC2T45
DUAL-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES531J – DECEMBER 2003 – REVISED JUNE 2007
over recommended operating free-air temperature range, V
CCA
= 1.8 V ± 0.15 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 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.
over recommended operating free-air temperature range, V
CCA
= 2.5 V ± 0.2 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 MIN MAX MIN MAX MIN MAX MIN MAX
t
PLH
2.6 0.4 4.9 0.2 4 0.2 3 0.2 2.6
A B ns
t
PHL
2.6 0.4 4.9 0.2 4 0.2 3 0.2 2.6
t
PLH
2.1 0.6 3.8 0.5 3.4 0.4 3 0.3 2.8
B A ns
t
PHL
2.1 0.6 3.8 0.5 3.4 0.4 3 0.3 2.8
t
PHZ
2.4 0.7 7.9 0.8 6.4 0.8 5 0.5 4.3
DIR A ns
t
PLZ
2.4 0.7 7.9 0.8 6.4 0.8 5 0.5 4.3
t
PHZ
3.8 1 4.3 0.6 4.3 0.5 4.2 1.1 4.1
DIR B ns
t
PLZ
3.8 1 4.3 0.6 4.3 0.5 4.2 1.1 4.1
t
PZH
(1)
5.9 8.5 7.7 7.2 6.9
DIR A ns
t
PZL
(1)
5.9 8.5 7.7 7.2 6.9
t
PZH
(1)
5 12.8 10.4 8 6.9
DIR B ns
t
PZL
(1)
5 12.8 10.4 8 6.9
(1) The enable time is a calculated value, derived using the formula shown in the enable times section.
7
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