GPS-18X19 Datasheet, PDF (3/11 Pages) List of Unclassifed Manufacturers – GPS Ultra High Sensitivity Module

Pin Function
Pin Name
I/O
Description
1 RXD1
Digital I
Universal Asynchronous Receiver
2 TXD1
Digital O
Universal Asynchronous Receiver
3 GND
4 VCC33
GND
Input
5 V BACK Input
5 1PPS
Digital O
Ground.
+3.3V to +3.6 V Supply Voltage Input to Internal
Regulators
The real-time clock circuitry and a small block of
SRAM is included on-chip to retain time and the
necessary
GPS data for rapid warm start and hot-start
operation
1 pulse per second output,
7 TIME
8 NC
9 NC
10 RESET Digital Input Module Reset
11 EXT ANT Input
External active antenna
12 GND
GND
Ground
http://www.wenshing.com.tw ; http://www.rf.net.tw
GPS-18X19 Datasheet P3