MAX-8 / MAX-M8 - Hardware Integration Manual
UBX-15030059 - R05 Migration to u-blox 8 / M8 modules Page 19 of 31
Production Information
Pin MAX-6 MAX-8/M8 Remarks for Migration
Pin Name Typical Assignment Pin Name Typical Assignment
11 RF_IN Matched RF-Input, DC
block inside.
RF_IN Matched RF-Input, DC
block inside.
No difference
12 GND GND GND GND No difference
13 ANT_ON Active antenna or ext.
LNA control pin in
power save mode.
ANT_ON pin voltage
level: MAX-6 ->
VCC_RF (pull-up)
LNA_EN
Ext. LNA control pin in
power save mode.
LNA_EN pin voltage level:
MAX-M8 -> VCC_IO
(push-pull)
On MAX-6, ANT_ON pin voltage level
is with respect to VCC_RF, on MAX-
8 / M8 to VCC_IO
(only relevant when VCC_IO does not
share the same supply with VCC)
14 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
15 RESERVED Leave open. RESERVED
(MAX-M8W:
V_ANT )
Leave open. No difference
16 SDA DDC Data SDA DDC Data No difference
17 SCL DDC Clock SCL DDC Clock No difference
18
SAFEBOOT_N
Leave open.
SAFEBOOT_N
Leave open. No difference
Table 5: Pin-out comparison MAX-6 vs. MAX-8 / MAX-M8
3.3 Software migration
☞ For an overall description of the module software operation, see the
u-blox 8 / u-blox M8 Receiver
Description Including Protocol Specification
[3].
☞ For migration, see
u-blox M8 FW SPG3.01 Migration Guide
[8].
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