مدار مجتمع (آی سی) آی‌سی واسط ارتباطی واسط ویژه

Product Attributes

Introduction

L1527 is a CMOS pre-burned internal code (address code for remote control) universal encoder. It features 20-bit pre-burnable internal code with 1,000,000 code combinations, resulting in an extremely low code collision rate and enhanced security. The chip integrates a misoperation key-off function: when a key input is valid and its state remains unchanged, the chip continuously retransmits data; after 15 seconds, the L1527 enters low-power mode and stops transmitting data until the key is released to exit the shutdown state.

Features

• Low quiescent current < 0.1uA, typical 0.01uA
• Enhanced ESD performance
• Wide operating voltage: VCC = 2.0V ~ 12V
• 4-key input with 15 possible combinations
• 15-second key-off function for misoperation prevention
• Compact SOP8 package
• Single-ended oscillator requiring only one oscillation resistor

Applications

• Vehicle anti-theft alarm remote control systems
• Electric door/window remote control systems
• Lighting remote control systems
• Wireless doorbells
• Other remote control systems