2.4 Form Factors
All
module
form
factors
are
based
on
the
same
GPS
engine.
The
main
difference
between
the
form
factors
(apart
from
size)
lies
in
the
number
of
pins
available
for
communication
and
configuration.
2.4.1 NEO
Modules
NEO
Top
View
1
2
3
4
5
6
7
8
9
10
11
12
24
22
21
20
19
18
17
16
15
14
13
23
Figure 31: NEO form factor
The
NEO
form
factor
is
16.0
x
12.2
x
2.8
mm
and
has
24
pins.
It
supports
one
USART
and
one
USB
communication
interface
and
is
optimized
for
minimal
floor
space
compared
to
the
TIM
and
LEA
form
factors.
NEO
modules
allow
fully
automatic
assembly
and
soldering.
2.4.2 LEA
Modules
LEA
TOP
View
16
17
18
19
20
28
27
26
25
24
23
22
21
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
Figure 32: LEA form factor
The
LEA
form
factor
is
17.0
x
22.4
x
3
mm
and
has
28
pins.
It
supports
one
USART
and
one
USB
communication
interface
and
is
optimized
for
minimal
floor
space
compared
to
the
TIM
form
factor.
The
LEA
form
factor
is
now
available
in
it’s
2
nd
generation
(LEA-LA,
LEA-4x)
allowing
u-blox
customers
to
profit
from
technological
advances
without
having
to
redesign
their
applications.
LEA
modules
allow
fully
automatic
assembly
and
soldering.
GPS
Modules
-
System
Integration
Manual
(SIM)
(incl.
Reference
Design)
System
Consideration
GPS.G4-MS4-05007-A1
Page 37
