LEA-5, NEO-5, TIM-5H - Hardware Integration ManualGPS.G5-MS5-09027-A2 Released AppendixPage 63 of 68Pin LEA-4A/LEA-4S LEA-5A/LEA-5S Remarks for MigrationPin Name Typical Assignment Pin Name Typical Assignment12 BOOT_INT NC Reserved NC do not drive low.13 GND GND GND GND No difference14 GND GND GND GND No difference15 GND GND GND GND No difference16 RF_IN RF_IN RF_IN RF_IN No difference17 GND GND GND GND No difference18 VCC_RF VCC - –.1V VCC_RF VCC - –.1V No difference19 V_ANT 3.0V - –.0V V_ANT 2.7V -5.5V No difference20 AADET_N NC (1.8 to 5.0V) AADET_N NC21 GPSMODE5 NC (GND orVDD18OUT) NC NC22GPSMODE2GPSMODE23NC (GND orVDD18OUT) NC NC23 GPSMODE7 NC (1.8 to 5.0V) NC NC24 VDDUSB 3.0 –3.6V/ GND VDDUSB Connected to GNDor VDD_USBDo not leave open. (VDD_USB is 3.3V regulatedpower supply from VBUS.)25 USB_DM VDDUSB I/O USB_DM NC No difference26 USB_DP VDDUSB I/O USB_DP NC No difference27 EXTINT0 NC (1.8 to 5.0V) EXTINT0 NC28 TIMEPULSE VDDIO out TIMEPULSE Output: Pins to be checked carefully; NC: Not connectedTable 17: Pin-out comparison LEA-4A/LEA-4S vs. LEA-5A/LEA-5S
