control transmitter. ET4205 Datasheet
The ET4205 is remote control transmitter which uses CMOS technology. The ET4205 is suitable for remote control of TV,
VCR, FANS, Airconditioners, Audio Equipments, Toys, Games etc.
Program memory：2,048 bytes (2,048 x 8bit)
Data memory (RAM)：32 nibble (32 x 4bit)
3 levels of subroutine nesting
Operating frequency：2.4MHz ~ 4MHz
Released stop mode by key input
Built in Poweron Reset circuit
Built in Transistor for I.R LED Drive：IOL=250mA at VDD=3V and VO=0.3V
Built in Low Voltage reset circuit
Built in a watch dog timer (WDT)
Low operating voltage：1.2 ~ 3.6V @ 4MHz
20/24 SOP Package.