Ublox MAX-7C-0, Manual

Page: 36 / 52

MAX-7 / NEO-7 - Hardware Integration Manual
UBX-13003704 - R09 Production Information Migration
to u-blox-7 modules
Page 36 of 52
6.2.2 Hardware migration NEO-6 -> NEO-7
Pin
NEO-6 NEO-7 Remarks for Migration
Pin Name Typical Assignment Pin Name Typical Assignment
1 RESERVED Leave open. RESERVED Leave open. No difference
2 SS_N
SPI Slave Select
D_SEL selects the interface
-> Different functions, compatible only when not
using SPI for communication.
3 TIMEPULSE Time pulse (1PPS) TIMEPULSE Time pulse (1PPS) No difference
4 EXTINT0 External interrupt pin EXTINT0 External interrupt pin No difference
5 USB_DM USB data USB_DM USB Data No difference
6 USB_DP USB data USB_DP USB Data No difference
7 VDD_USB USB supply VDD_USB USB supply No difference
8 RESERVED
Pin 8 and 9 must be
connected together.
RESET_N Reset input
If pin 8 is connected to pin 9 on NEO-7N, the
device always runs. With NEO-6Q, if Reset input
is used, it implements the 3k3 resistor from pin 8
to pin 9. This also works with NEO-7N. If used
with NEO-7N, do not populate the pull-up
resistor.
9 VCC_RF
Can be used for active
antenna or external
LNA supply.
VCC_RF
Can be used for active
antenna or external
LNA supply.
No difference
10 GND GND GND GND No difference
11 RF_IN GPS signal input RF_IN GPS signal input No difference
12 GND GND GND GND No difference
13 GND GND GND GND No difference
14
MOSI/CFG_
COM0
SPI MOSI /
Configuration pin.
Leave open if not
used.
ANT_ON
turn on and off an
optional external LNA
ANT_ON (antenna on) can be used to turn on
and off an optional external LNA.
-> Different functions, no SPI MOSI and
configuration pins with NEO-7. If not used as
default configuration, it must be set using
software command!
It is not possible to migrate from NEO-6 to NEO-
7N, if NEO-6 pin 14 is connected to GND. In this
case, migrate to NEO-7M!
15
MISO/CFG_
COM1
SPI MISO /
Configuration pin.
Leave open if not
used.
RESERVED Leave open.
16
CFG_GPS0/
SCK
Power Mode
Configuration pin / SPI
Clock. Leave open if
not used.
RESERVED Leave open.
17 RESERVED Leave open. RESERVED Leave open. No difference
18 SDA DDC Data SDA DDC Data / SPI CS_N
No difference for DDC. If pin 2 low = SPI chip
select.
19 SCL DDC Clock SCL DDC Clock / SPI SCK No difference for DDC. If pin 2 low = SPI clock.
20 TxD
Serial Port
TxD
Serial Port / SPI MISO No difference for UART. If pin 2 low = SPI
MISO.
21 RxD
Serial Port
RxD
Serial Port / SPI MOSI No difference for UART. If pin 2 low = SPI
MOSI.
22 V_BCKP
Backup supply voltage
V_BCKP
Backup supply voltage Check current in Data Sheet
If on u-blox 6 module this was connected to
GND, no problem to do the same in u-blox 7.
23 VCC
Supply voltage
NEO-6G: 1.75 – 2.0V
NEO-6Q/M/P/V/T:
2.7 – 3.6V
VCC
Supply voltage
NEO-7M: 1.65 – 3.6V
NEO-7N/P: 2.7 – 3.6V
See Figure 30 for migration path
24 GND GND GND GND No difference
Table 13: Pin-out comparison NEO-6 vs. NEO-7