GR-89
GPS Module series
THE PRO NAME IN GPS
HOLUX Technology, Inc.
No.1-1, Innovation Rd.1, Hsinchu Science Park, Hsinchu, Taiwan(R.O.C)
TEL: 886-3-6687000 FAX:886-3-6687111 E-mail:[email protected] http:www.holux.com.tw
Recommend PCB layout
Pin assignment
Pin Pin Name Type
Function description
1
VCC_IN
I
3.3 ~ 5 V supply input
2
GND
G Ground
3
BOOT_SEL
I
Boot selection. Pull high this pin at power on stage for flash
programming.
4
RXDA
I
Serial Data input A
5
TXDA
O Serial Data Output A
6
TXDB
O Serial Data Output B
7
RXDB
I
Serial Data input B
8
GPIO14
I/O General purpose I/O. flash at 1Hz when position is fixed.
9
RF_ON
O Indication for RF power supply. Flashes in trickle power mode.
10
GND
G Ground
11
GND
G Ground
12
GND
G Ground
13
GND
G Ground
14
GND
G Ground
15
GND
G Ground
16
GND
G Ground
17
RF_IN
I
GPS signal input
18
GND
I
Ground
