This document is about UT912D. UT912D is a CMOS LSI for remote control system applications. It can decode information which consists of N address bits and 12-N data bits.
The UT912D is a CMOS decoder designed for remote‑control applications. It works with the matching UT912E encoder and supports 8 address bits and 4 data bits. The device decodes serial address and data streams received via RF or infrared, indicating a valid transmission on the Vr pin.
The datasheet provides detailed pin configurations, electrical characteristics, absolute maximum ratings, and typical application circuits. It also includes ordering information for the various package options (DIP‑18, SOP‑20) and a block diagram of the internal architecture.
| Operating Voltage | 2.4 V – 12 V |
|---|---|
| Supply Voltage Rating | -0.3 V – +13 V |
| Address Bits | 8 bits |
The decoder operates from 2.4 V up to 12 V.
It provides 8 address bits.
The Vr pin goes high to indicate a valid transmission.