<s>
InterChip	B-Device
USB	I-Device
(	O
IC-USB	B-Device
)	O
,	O
sometimes	O
referred	O
to	O
as	O
USB-IC	O
or	O
Inter-chip	O
USB	O
,	O
is	O
an	O
addendum	O
to	O
the	O
USB	O
Implementers	O
Forum	O
(	O
USB-IF	O
)	O
USB	O
2.0	O
specification	O
.	O
</s>
<s>
IC-USB	B-Device
is	O
intended	O
as	O
a	O
low-power	O
variant	O
of	O
the	O
standard	O
physical	O
USB	O
interface	O
,	O
intended	O
for	O
direct	O
chip-to-chip	O
communications	O
.	O
</s>
<s>
The	O
IC-USB	B-Device
bus	O
's	O
maximum	O
length	O
of	O
10cm	O
results	O
in	O
a	O
lower	O
inductance	O
and	O
capacitance	O
and	O
therefore	O
allows	O
lower	O
power	O
requirements	O
.	O
</s>
<s>
IC-USB	B-Device
is	O
used	O
primarily	O
in	O
embedded	B-Architecture
systems	I-Architecture
;	O
for	O
example	O
,	O
ETSI	O
(	O
in	O
specification	O
TS	O
102	O
600	O
)	O
has	O
standardized	O
on	O
IC-USB	B-Device
as	O
the	O
official	O
high-speed	O
interface	O
for	O
connections	O
between	O
the	O
main	O
chipset	O
of	O
a	O
smartphone	B-Application
and	O
the	O
SIM	O
card	O
or	O
UICC	B-Algorithm
card	I-Algorithm
.	O
</s>
<s>
The	O
HSIC	O
physical	B-Application
layer	I-Application
uses	O
about	O
50%	O
less	O
power	O
and	O
75%	O
less	O
board	O
area	O
compared	O
to	O
traditional	O
USB2.0	O
.	O
</s>
<s>
It	O
does	O
not	O
have	O
low	O
enough	O
latency	O
to	O
support	O
RAM	B-Architecture
sharing	O
between	O
two	O
chips	O
.	O
</s>
