Datasheet

Switching Characteristics
Switching Characteristics
Operating Characteristics
SN74LVC1T45
www.ti.com ..................................................................................................................................................... SCES515I – DECEMBER 2003 – REVISED MAY 2009
over recommended operating free-air temperature range, V
CCA
= 3.3 V ± 0.3 V (see Figure 1 )
V
CCB
= 1.8 V V
CCB
= 2.5 V V
CCB
= 3.3 V V
CCB
= 5 V
FROM TO
± 0.15 V ± 0.2 V ± 0.3 V ± 0.5 V
PARAMETER UNIT
(INPUT) (OUTPUT)
MIN MAX MIN MAX MIN MAX MIN MAX
t
PLH
2.1 15.5 1.4 8 0.7 5.8 0.7 4.4
A B ns
t
PHL
2 12.6 1.3 7 0.8 5 0.7 4
t
PLH
1.7 8.3 1.3 6.4 0.7 5.8 0.6 5.4
B A ns
t
PHL
1.8 7.1 1.3 5.4 0.8 5 0.7 4.5
t
PHZ
2.9 7.3 3 7.3 2.8 7.3 3.4 7.3
DIR A ns
t
PLZ
1.8 5.6 1.6 5.6 2.2 5.7 2.2 5.7
t
PHZ
5.4 20.5 3.9 10.1 2.9 8.8 2.4 6.8
DIR B ns
t
PLZ
3.3 14.5 2.9 7.8 2.4 7.1 1.7 4.9
t
PZH
(1)
22.8 14.2 12.9 10.3
DIR A ns
t
PZL
(1)
27.6 15.5 13.8 11.3
t
PZH
(1)
21.1 13.6 11.5 10.1
DIR B ns
t
PZL
(1)
19.9 14.3 12.3 11.3
(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
= 5 V ± 0.5 V (see Figure 1 )
V
CCB
= 1.8 V V
CCB
= 2.5 V V
CCB
= 3.3 V V
CCB
= 5 V
FROM TO
± 0.15 V ± 0.2 V ± 0.3 V ± 0.5 V
PARAMETER UNIT
(INPUT) (OUTPUT)
MIN MAX MIN MAX MIN MAX MIN MAX
t
PLH
1.9 15.1 1 7.5 0.6 5.4 0.5 3.9
A B ns
t
PHL
1.8 12.2 0.9 6.2 0.7 4.5 0.5 3.5
t
PLH
1.4 7.2 1 5.1 0.7 4.4 0.5 3.9
B A ns
t
PHL
1.7 7 0.9 4.6 0.7 4 0.5 3.5
t
PHZ
2.1 5.4 2.2 5.4 2.2 5.5 2.2 5.4
DIR A ns
t
PLZ
0.9 3.8 1 3.8 1 3.7 0.9 3.7
t
PHZ
4.8 20.2 2.5 9.8 1 8.5 2.5 6.5
DIR B ns
t
PLZ
4.2 14.8 2.5 7.4 2.5 7 1.6 4.5
t
PZH
(1)
22 12.5 11.4 8.4
DIR A ns
t
PZL
(1)
27.2 14.4 12.5 10
t
PZH
(1)
18.9 11.3 9.1 7.6
DIR B ns
t
PZL
(1)
17.6 11.6 10 8.6
(1) The enable time is a calculated value, derived using the formula shown in the enable times section.
T
A
= 25 ° C
V
CCA
= V
CCA
= V
CCA
= V
CCA
=
TEST
V
CCB
= 1.8 V V
CCB
= 2.5 V V
CCB
= 3.3 V V
CCB
= 5 V
PARAMETER UNIT
CONDITIONS
TYP TYP TYP TYP
A-port input, B-port output C
L
= 0 pF, 3 4 4 4
C
pdA
(1)
f = 10 MHz, pF
B-port input, A-port output 18 19 20 21
t
r
= t
f
= 1 ns
A-port input, B-port output C
L
= 0 pF, 18 19 20 21
C
pdB
(1)
f = 10 MHz, pF
B-port input, A-port output 3 4 4 4
t
r
= t
f
= 1 ns
(1) Power dissipation capacitance per transceiver
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