UPD61P24

DATA SHEET MOS INTEGRATED CIRCUIT µPD61P24 4-BIT SINGLE-CHIP MICROCONTROLLER FOR REMOTE CONTROL TRANSMISSION DESCRIPTION The µPD61P24 is a 4-bit single-chip microcontroller for infrared remote controllers for TVs, VCRs, stereos, cassette decks, air conditioners, etc. As the µPD61P24 is user-programmable, it is ideal for evaluation of programs running in a µPD6124A or 6600A, and for small-scale production of such systems. The functions of the µPD61P24 are described in detail in the following User’s Manual. Be sure to read this manual before designing your system. µPD612X Series User’s Manual: IEP-1083 FEATURES Transmitter for programmable infrared remote controller 19 types of instructions Instruction execution time: 17.6 µs (with 455-kHz ceramic resonator) On-chip one-time PROM: 1002 × 10 bits Data memory (RAM) capacity I/O pins (KI/O): 8 pins Input pins (KI): 4 pins : 32 × 5 bits 9-bit programmable timer: 1 channel Serial input pins (S-IN): 1 pin Transmission-in-progress indication pin (S-OUT): 1 pin Transmit carrier frequency (REM) fOSC/12, fOSC/8 Standby operation (HALT/STOP mode) Low power consumption Current consumption in STOP mode (TA = 25°C) 1 µA MAX. Low-voltage operation: VDD = 2.2 to 5.5 V Caution To use the NEC transmission format, ask NEC to supply the custom code. Do no use R0 when using a register as an operand of the branch instruction. The information in this document is subject to change without notice. Document No. U126...