TIM-5H - Hardware Integration Manual AppendixGPS.G5-MS5-07015-A-1 u-blox proprietary Page 40your position is our focusA.1 Migration from TIM-4H / TIM-4P to TIM-5HThe pin-outs of TIM-4H/4P and TIM-5H differ slightly. Table 8 compares the modules and highlights thedifferences to be considered.TIM-4x TIM-5H Remarks for MigrationPinPin Name Typical Assignment Pin Name Typical Assignment1 VCC 2.70 – 3.30V VCC 2.70 – 3.60 V Increased Voltage range and peak supply current.2 GND GND GND GND No difference3 BOOT_INT NC NC NC Do not drive low4 RXD1 1.8 to 5.0V in RXD1 Input No difference5 TXD1 3.0V out TXD1 Output No difference6 TXD2 3.0V out TXD2 Output No difference7 RXD2 1.8 to 5.0V in RXD2 Input No difference8 SCK1/ P17/GPSMODE5 NC Reserved NC No difference9 EXTINT1/GPSMODE3 NC Reserved NC No difference10 VDD18OUT NC VCC_OUT NCInternally connected to VCC, if you have circuitryconnected to this pin, check if it withstands theVCC voltage.11to16GND GND GND GNDNo difference17 RF_IN RF_IN RF_IN RF_IN No difference18 GND GND GND GND No difference19 V_ANT 3.0V - 5.0V V_ANT 2.7 – 5.5V20 VCC_RF VCC - 0.1V VCC_RF VCC - 0.1V No difference21 V_BAT 1.50 – 3.6V V_BCKP 1.30 – 4.8VWider voltage range but needs more current.Check your backup supply, regarding the higherconsumption.22 RESET_N 1.8V RESET_N NC Input only, do not drive high. Internal pull up toVCC.23 EXTINT0 NC EXTINT0 NC No difference24 PCS1_N /GPSMODE2 NC Reserved NC Check GPSMODE pin25 PCS0_N/GPSMODE6 NC Reserved NC Check GPSMODE pin26 SCK/NC NC Reserved NC No difference27 AADET_N NC AADET_N NC No difference28 MOSI/NC NC Reserved NC No difference29 TIMEPULSE 3.0V out TIMEPULSE Output No difference30 PCS3_N/GPSMODE 12 NC Reserved NC No differenceJ: Pins to be checked carefully; NC: Not connectedTable 8: Pin-out comparison TIM-4H / TIM-4P vs. TIM-5H