u-blox LEA-5T User Manual

LEA-5, NEO-5, TIM-5H - Hardware Integration Manual
GPS.G5-MS5-09027-A2 Released Appendix
Page 65 of 68
A.6 Migration from TIM-4H / TIM-4P to TIM-5H
The pin-outs of TIM-4H/4P and TIM-5H differ slightly. Table 19 compares the modules and highlights the
differences to be considered.
Pin
TIM-4x
TIM-5H
Remarks for Migration
Pin Name
Typical Assignment
Pin Name
Typical Assignment
1
VCC
2.70 – 3.30V
VCC
2.70 – 3.60 V
Increased Voltage range and peak supply current.
2
GND
GND
GND
GND
No difference
3
BOOT_INT
NC
NC
Reserved
Do not drive low
4
RXD1
1.8 to 5.0V in
RXD1
Input
No difference
5
TXD1
3.0V out
TXD1
Output
No difference
6
TXD2
3.0V out
TXD2
Output
No difference
7
RXD2
1.8 to 5.0V in
RXD2
Input
No difference
8
SCK1/ P17/
GPSMODE5
NC
Reserved
NC
No difference
9
EXTINT1/
GPSMODE3
NC
Reserved
NC
No difference
10
VDD18OUT
NC
VCC_OUT
NC
Internally connected to VCC, if you have circuitry
connected to this pin, check if it withstands the
VCC voltage.
11
to
16
GND
GND
GND
GND
No difference
17
RF_IN
RF_IN
RF_IN
RF_IN
No difference
18
GND
GND
GND
GND
No difference
19
V_ANT
3.0V - –.0V
V_ANT
2.7 – 5.5V
20
VCC_RF
VCC - –.1V
VCC_RF
VCC - –.1V
No difference
21
V_BAT
1.50 – 3.6V
V_BCKP
1.40 – 3.6V
Wider voltage range but needs more current.
Check your backup supply, regarding the higher
consumption.
22
RESET_N
1.8V
RESET_N
NC
Input only, do not drive high. Internal pull up to
VCC.
23
EXTINT0
NC
EXTINT0
NC
No difference
24
PCS1_N /
GPSMODE2
NC
Reserved
NC
Check GPSMODE pin
25
PCS0_N/
GPSMODE6
NC
Reserved
NC
Check GPSMODE pin
26
SCK/
NC
NC
Reserved
NC
No difference
27
AADET_N
NC
AADET_N
NC
No difference
28
MOSI/
NC
NC
Reserved
NC
No difference
29
TIMEPULSE
3.0V out
TIMEPULSE
Output
No difference
30
PCS3_N/
GPSMODE 12
NC
Reserved
NC
No difference
: Pins to be checked carefully; NC: Not connected
Table 19: Pin-out comparison TIM-4H / TIM-4P vs. TIM-5H

u-blox LEA-5T Specifications

General

Brand	u-blox
Model	LEA-5T
Category	GPS
Language	English