UPD6125A Overview
The µPD6125A and 6126A are 4-bit single-chip microcontrollers for infrared remote controllers for TVs, VCRs, stereos, cassette decks, air conditioners, 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 in software.
UPD6125A Key Features
- Transmission-in-progress indication pin (S-OUT): 1 pin Transmit carrier frequency (REM) fOSC/12, fOSC/8 Standby operatio
- Program memory (ROM) capacity: 1002 × 10 bits Data memory (RAM) capacity: 32 × 5 bits 9-bit programmable timer: 1 channe
- µPD6125A: 4 pins
- µPD6126A: 8 pins
- Input pins (KI): 4 pins Serial input pins (S-IN): 1 pin Caution To use the NEC transmission format, ask NEC to supply th