SC73C1402 Datasheet | Silan Microelectronics

4-BIT MCU FOR REMOTE CONTROLLER(MASK TYPE) DESCRIPTION SC73C1402 is one of Silan’ s 4-bit CMOS single-chip microcontrollers for infrared remote control transmitters (IRCTs). It can be implemented in various IRCT circuits by mask option. SOP-20-300-1.27 Features - Operating voltage range: (2.0 ~ 4.0V) Low static power consumption (<1uA) - Program memory: 2Kx 9 bits The last 1K areas can also be used as data table - Data memory (RAM): 16 x 4 bits - Timer/counter: 10~15 bits - 20 I/O ports, where there is a 4-bit input, two 4-bit outputs and two 4-bit programmable input/output ports(P53 is output but not used as keypress). - Oscillator frequency (fosc): 300KHz~2MHz or 2MHz~6MHz...