Datasheet
TXB0108
SCES643B –NOVEMBER 2006–REVISED FEBRUARY 2010
www.ti.com
Timing Requirements
over recommended operating free-air temperature range, V
CCA
= 1.8 V ± 0.15 V (unless otherwise noted)
V
CCB
= 1.8 V V
CCB
= 2.5 V V
CCB
= 3.3 V V
CCB
= 5 V
± 0.15 V ± 0.2 V ± 0.3 V ± 0.5 V
UNIT
MIN MAX MIN MAX MIN MAX MIN MAX
Data rate 52 60 60 60 Mbps
t
w
Pulse duration Data inputs 19 17 17 17 ns
Timing Requirements
over recommended operating free-air temperature range, V
CCA
= 2.5 V ± 0.2 V (unless otherwise noted)
V
CCB
= 2.5 V V
CCB
= 3.3 V V
CCB
= 5 V
± 0.2 V ± 0.3 V ± 0.5 V
UNIT
MIN MAX MIN MAX MIN MAX
Data rate 70 100 100 Mbps
t
w
Pulse duration Data inputs 14 10 10 ns
Timing Requirements
over recommended operating free-air temperature range, V
CCA
= 3.3 V ± 0.3 V (unless otherwise noted)
V
CCB
= 3.3 V V
CCB
= 5 V
± 0.3 V ± 0.5 V
UNIT
MIN MAX MIN MAX
Data rate 100 100 Mbps
t
w
Pulse duration Data inputs 10 10 ns
Switching Characteristics
T
A
= 25°C, V
CCA
= 1.2 V
V
CCB
= 1.8 V V
CCB
= 2.5 V V
CCB
= 3.3 V V
CCB
= 5 V
FROM TO
PARAMETER UNIT
(INPUT) (OUTPUT)
TYP TYP TYP TYP
A B 9.5 7.9 7.6 8.5
t
pd
ns
B A 9.2 8.8 8.4 8
A 1 1 1 1
t
en
OE ms
B 1 1 1 1
A 20 17 17 18
t
dis
OE ns
B 20 16 15 15
t
rA
, t
fA
A-port rise and fall times 4.1 4.4 4.1 3.9 ns
t
rB
, t
fB
B-port rise and fall times 5 5 5.1 5.1 ns
t
SK(O)
Channel-to-channel skew 2.4 1.7 1.9 7 ns
Max data rate 20 20 20 20 Mbps
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