your position is our focus
LEA-LA
LEA-4H / LEA-4P
Remarks for Migration
Pin
Pin
Name
Typical
Assignment
Pin
Name
Typical
Assignment
mode
is
increased
by
up
to
50µA
22 GPSMODE2
Connected
to
GND
or
VDD_18OUT
PCS2_N
Not
connected
Backward
compatible:
can
be
left
open
or
connected
to
GND,
VDDIO
or
VDD_18OUT.
23 NC
Not
connected
SCK
Not
connected
24 NC
Connected
to
GND
VDDUSB
Connected
to
GND
or
VDD_USB
25 NC
Not
connected
USB_DM
Not
connected
26 NC
Not
connected
USB_DP
Not
connected
Placing
a
LEA-4x
into
an
existing
LEA-LA
board
design
will
disable
USB
port.
27 EXTINT0
Connected
to
VDD18OUT
EXTINT0
Not
connected
Do
not
add
an
external
pull
up
resistor;
there
is
one
built-in
to
V_BAT
.
Leave
open
if
not
used.
28 TIMEPULSE
1.8V
out
TIMEPULSE
VDDIO
level
I/O
Consider
that
TIMPULSE
on
LEA-4x
is
on
VDDIO
voltage
level
(1.8V
on
LEA-LA)
J
:
Pins
to
be
checked
carefully
Table 80: Pin-out comparison LEA-LA vs. LEA-4x
GPS
Modules
-
System
Integration
Manual
(SIM)
(incl.
Reference
Design)
Migration
to
ANTARISP®P4
receivers
GPS.G4-MS4-05007-A1
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