Data Sheet

SHENZHEN FIRST TECHNOLOGY CO.,LTD FST50_04E WIFI DataSheet
http：// www.fst-tech.com
11
20
TXD0
UART（TX），High level is equal to VCC, 10K pull-up resistor
must be connected externally
Note: PAD_SEL1 is pulled up 3.3V during program compilation and programming.
4.Shape and size
The external dimensions of the FST50_04E SMD module are 16mm * 24mm * 2.5mm. This
module uses SPI Flash with a capacity of 16M bits. The module uses a 2 DBi PCB on-board
antenna.
Front view Back view
FST50_04E module size plan (unit: mm)
Length
width
height
Plate
thickness
PAD
Pin distance
24mm
16 mm
2.5 mm
1mm
1 mm x 1.5 mm
2mm