GC2272 remote control decoding circuit is a remote control decoding dedicated integrated circuit used with GC2262, with a wide working voltage range, low power consumption and strong noise suppression capabilities.
This document provides an overview of the GC2272 remote‑control decoding integrated circuit, including its main characteristics such as a wide supply voltage range (2.5‑6 V), low power consumption and strong noise immunity. It explains the address and data pin configurations, the two output types (latch and transient), and the built‑in oscillator circuit.
Detailed sections cover absolute and electrical parameters, pin assignments, operation flowcharts, and example application circuits for RF and data‑type implementations. Suggested resistor values for the external oscillator are also listed. This manual is written in Chinese.
| Supply voltage (VCC) | 2.5‑6 V |
|---|---|
| Maximum power consumption (Pa) at VCC=6 V | 300 mW |
| Operating temperature (Topr) | -20 °C to +70 °C |
| Storage temperature (Tstg) | -40 °C to +125 °C |
| Input high voltage (VIH) | 0.7 × VCC |
| Input low voltage (VIL) | 0 to 0.3 × VCC |
| Output high current (IOH) at VCC=5 V, VOH=3 V | -3 mA |
| Output low current (IOL) at VCC=5 V, VOL=3 V | 2 mA |
| Address pins | Up to 12 three‑state address pins |
The GC2272 operates with a supply voltage between 2.5 V and 6 V.
It can have up to 12 three‑state address pins.
By connecting a resistor between the OSC1 and OSC2 pins, a precise single‑resistor oscillator is created.