Ublox MAX-7C-0 - Hardware Migration NEO-6 -> NEO-7

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