I. Product Introduction

The RUA1v8F48GX01 is a low-voltage, low-power, high-performance timing control chip. It integrates a 6502 computing core and a complete LCD driver engine. The entire timing logic is hardware-defined, requiring no additional programming. With simple peripheral components, it can achieve multi-channel automatic timing control. It is compatible with DC 1.2~1.8V low-voltage battery-powered devices and features an 8-key human-machine interface, full-screen LCD display, and multiple power-saving and anti-mistouch mechanisms. It provides a one-stop solution for time-sharing start/stop control needs in smart homes, industry, aquaculture, and outdoor lighting, significantly shortening the development cycle of timing control products.

II. Core Functional Advantages

1. Complete 24-hour High-Precision Timing System

The real-time clock supports complete display of day of the week/hour/minute/second, offering two timing precision options: with and without seconds. It has a built-in weekly automatic time synchronization function with a single error compensation of ±30 seconds and minimal long-term time deviation.

2. 16 Independently Programmable Timers

Supports 16 independently set ON and OFF time periods, with 15 built-in weekday combinations and customizable weekday, weekend, odd-numbered day, and every other day cycle modes; features AUTO, always-on, and always-off operating modes for free switching.

3. Low-Power Intelligent Sleep and Anti-Misoperation

Supports 1-5 minute customizable automatic sleep mode; the clock and scheduled tasks continue running in sleep mode, and can be woken up by any key press; automatically locks the keyboard after 30 seconds of inactivity, and unlocks by pressing the CLR keys four times consecutively, preventing accidental modification of timer parameters.

4. Integrated Human-Machine Interaction and Expandability

Equipped with 8 dedicated function keys, a built-in full-screen LCD test mode; multiplexed GPIO ports allow connection to external buzzers and various sensors for expanded audio-visual alerts and external linkage functions; integrated hardware key debouncing circuit ensures stable and malfunction-free operation.

5. Highly Integrated Monolithic Architecture, Simple Development

Built-in 12KB OTP program memory, 256B RAM, and hardware watchdog timer, packaged in a compact LQFP48 package; integrated LCD bias generator eliminates the need for an external LCD driver IC, resulting in extremely simple peripheral circuitry and lower BOM costs.

III. Applicable Application Scenarios

1. Outdoor Lighting Equipment: Time-sharing switch control for municipal streetlights, advertising neon lights, and store sign lights

2. Industrial Automation Equipment: Intermittent machine tool operation, power distribution cabinets, and electrical control boxes for timed start/stop management

3. Smart Aquaculture Equipment: Automatic water supply and timed feed feeding systems for aquaculture

4. Smart Home Terminals: Timed power control for home appliances such as air conditioners, water heaters, and televisions

IV. Industrial-Grade Environmental Characteristics

1. Power Supply Specifications: Standard operating voltage DC1.2~1.8V, recommended 1.5V single-cell power supply, compatible with button batteries and low-power terminals using dry cell batteries.

2. LCD Driving Standard: Supports 3.0V LCD, 1/4 duty cycle, 1/3 bias driving scheme, high screen contrast.

3. Package Specification: LQFP48 surface mount package, dimensions 7×7×1.4mm, conforms to JEDEC international standards, compact PCB layout.

4. Stable Operation Guarantee: Built-in hardware watchdog to prevent program crashes; extremely low power consumption during long-term sleep standby, suitable for long-term unattended equipment.