UPD6600A

DATA SHEET µPD6124A, 6600A 4-BIT SINGLE-CHIP MICROCONTROLLER FOR REMOTE CONTROL TRANSMISSION MOS INTEGRATED CIRCUIT DESCRIPTION The µPD6124A and 6600A are 4-bit single-chip microcontrollers for infrared remote controllers for TVs, VCRs, stereos, cassette decks, air conditions, etc. These microcontrollers consist of ROM, RAM, a 4-bit parallel-processing ALU, a programmable timer, key input/ output ports, and transmit output ports. Functioning is controlled by a program. A one-time PROM, model µPD61P24, to which a program can be written only once is also available. This one-time PROM is ideal for evaluation of programs running in a µPD6124A or 6600A, and for small-scale production of such systems. FEATURES Transmitter for programmable infrared remote controller 19 types of instructions Instruction execution time: 17.6 µs (with 455-kHz ceramic resonator) Program memory (ROM) capacity µPD6124A: 1002 × 10 bits µPD6600A: 512 × 10 bits 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) Low-voltage operation Data memory (RAM) capacity: 32 × 5 bits 9-bit programmable timer: 1 channel I/O pins (KI/O): 8 pins Input pins (KI): 4 pins Serial input pins (S-IN): 1 pin Caution µPD6124A: VDD = 2.2 to 5.5 V µPD6600A: VDD = 2.2 to 3.6 V To use the NEC transmission format, ask NEC to supply the cus...