SC73C1402

SC73C1402 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 selectable by mask option * Operating frequency (fmain): fmain=fosc (when fosc in the range of 300KHz~2MHz) fmain=fosc/8 (when fosc in the range of 2MHz~6MHz) * Carrier frequency: fmain/12 * Carrier duty: 1/2 or 1/3 duty selectable by program * Instruction cycle: 5/fmain * Handles various user’ s codes, repeat key, persist-key press APPLICATIONS www.DataSheet4U.com and many other functions * Infrared remote control devices, such * Power on reset as TV, Video Cassette Recorder, VTR, * Supports voltage-drop detection laser phonograph and acoustics * Supports 56 keys in 20-pin package, and 80 keys in 24-pin remote controllers. package. SSOP-20-300-0.65 SOP-20-375-1.27 ORDERING INFORMATION Device SC73C1402 SC73C1402A SC73C1402B SC73C1402C SC73C1402D SC73C1402E Package SOP-24-375-1.27 SOP-20-300-1....