Installation Instructions

LISA-U2 series - System Integration Manual
UBX-13001118 - R19 Early Production Information Appendix
Page 165 of 175
LISA-U1 series
LISA-U2 series
No
Name
Description
Name
Description
Remarks for Migration
19
PWR_ON
Power-on input
PWR_ON
Power-on input
PWR_ON switch-on low pulse time difference:
 LISA-U1 series:
o L-level pulse time = 5 ms min
 LISA-U2 series:
o L-level pulse time = 50 µs min / 80 µs max
PWR_ON switch-off low pulse time difference:
 LISA-U1 series:
o Switch-off by PWR_ON not supported
 LISA-U2 series:
o L-level pulse time = 1 s min
PWR_ON operating voltage difference:
 LISA-U1 series:
o L-level input = -0.30 V min / 0.65 V max
o H-level input = 2.00 V min / 4.20 V max
o External pull-up (e.g. to V_BCKP) required
 LISA-U2 series:
o L-level input = -0.30 V min / 0.65 V max
o H-level input = 1.50 V min / 4.40 V max
o External pull-up (e.g. to V_BCKP) required
20
GPIO1
GPIO
GPIO1
GPIO
Configurable GPIO, 1.8V typ.
 LISA-U1 series:
o Output driver strength = 1 mA
 LISA-U2 series:
o Output driver strength = 6 mA
Functions on all LISA-U series:
o Pad disabled (default)
o Input / Output
o Network Status Indication
o GNSS Supply Enable
o GSM Tx Burst Indication
Function on LISA-U2 series:
o Module Status Indication
21
GPIO2
GPIO
GPIO2
GPIO
Configurable GPIO, 1.8V typ.
 LISA-U1 series:
o Output driver strength = 1 mA
 LISA-U2 series:
o Output driver strength = 1 mA
Functions on all LISA-U series:
o Pad disabled
o Input / Output
o Network Status Indication
o GNSS Supply Enable (default)
22
RESET_N
External reset input
RESET_N
External reset input
RESET_N hardware reset or switch-on low pulse time:
 LISA-U1 series:
o L-level pulse time = 50 ms min
 LISA-U2 series:
o L-level pulse time = 50 ms min
RESET_N operating voltage difference:
 LISA-U1 series:
o L-level input = -0.30 V min / 0.65 V max
o H-level input = 1.69 V min / 2.48 V max
o Internal 10kΩ pull-up to V_BCKP (2.3V typ)
 LISA-U2 series:
o L-level input = -0.30 V min / 0.51 V max
o H-level input = 1.32 V min / 2.01 V max
o Internal 10 kΩ pull-up to V_BCKP (1.8V typ)