Datasheet
Switching Characteristics
Switching Characteristics
Operating Characteristics
SN74LVC1T45-EP
www.ti.com
........................................................................................................................................................................................... SCES768 – NOVEMBER 2008
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 18.5 1.4 11 0.7 8.8 0.7 7.4
A B ns
t
PHL
2 15.6 1.3 10 0.8 8 0.7 7
t
PLH
1.7 11.3 1.3 9.4 0.7 8.8 0.6 8.4
B A ns
t
PHL
1.8 10.1 1.3 8.4 0.8 8 0.7 7.5
t
PHZ
2.9 10.3 3 10.3 2.8 10.3 3.4 10.3
DIR A ns
t
PLZ
1.8 8.6 1.6 8.6 2.2 8.7 2.2 8.7
t
PHZ
5.4 23.5 3.9 13.1 2.9 11.8 2.4 9.8
DIR B ns
t
PLZ
3.3 17.5 2.9 10.8 2.4 10.1 1.7 7.9
t
PZH
(1)
28.8 20.2 18.9 16.3
DIR A ns
t
PZL
(1)
31.6 21.5 19.8 17.3
t
PZH
(1)
27.1 19.6 17.5 16.1
DIR B ns
t
PZL
(1)
25.9 20.3 18.3 17.3
(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 18.1 1 10.5 0.6 8.4 0.5 6.9
A B ns
t
PHL
1.8 15.2 0.9 9.2 0.7 7.5 0.5 6.5
t
PLH
1.4 10.2 1 8.1 0.7 7.4 0.5 6.9
B A ns
t
PHL
1.7 10 0.9 7.6 0.7 7 0.5 6.5
t
PHZ
2.1 8.4 2.2 8.4 2.2 8.5 2.2 8.4
DIR A ns
t
PLZ
0.9 6.8 1 6.8 1 6.7 0.9 6.7
t
PHZ
4.8 23.2 2.5 12.8 1 11.5 2.5 9.5
DIR B ns
t
PLZ
4.2 17.8 2.5 10.4 2.5 10 1.6 7.5
t
PZH
(1)
28 18.5 17.4 14.4
DIR A ns
t
PZL
(1)
31.2 20.4 18.5 16
t
PZH
(1)
24.9 17.3 15.1 13.6
DIR B ns
t
PZL
(1)
23.6 17.6 16 14.6
(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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