آر اف (فرکانس رادیویی) و بی‌سیم آی سی‌ فرستنده‌گیرنده آر اف

Product Attributes

Introduction

Vx2241L is a highly integrated, low-power learning code encoder IC. It integrates a 20-bit pre-programmable address code, supporting one million (2^20) or one trillion (2^40) address code combinations, significantly reducing the probability of remote control duplication in use. Vx2241L features 4 key scan pins, supports combination key scanning, and can accommodate up to 15 keys. Vx2241L uses a programmed code rate adjustment method, saving one oscillator resistor compared to the traditional 1527. Vx2241L is available in an SOP8 package.

Features

• Code width range: 100μs~2000μs (data rate range: 0.5Kbps~10Kbps)
• No oscillator resistor required
• Drop-in replacement for SC2241, HS2241
• Supply voltage: 2.2–5.5V
• Low power consumption: 0.5mA
• Low quiescent current: <1.0μA
• Up to 15 key combinations

Applications

• Remote access control
• Key fob remote control
• Fan remote control
• Lighting switch remote control
• Toy remote control
• Security systems
• Electric vehicle remote control
• Garage door remote control