During the epidemic, Corebai Micro assisted multiple clients in achieving domestic substitution. Amid shortages and price hikes of international brands, Corebai Micro maintained stable supply to customers and committed not to raise prices.

Watchdog Circuit:

Corebai Micro, with years of technical accumulation and development, currently provides high-reliability analog circuit products and services to industrial customers, serving as perfect replacements for international brands.

The watchdog, also known as a watchdog timer, is essentially a timer circuit with an input and an output. The input, called "feeding the dog," is typically connected to another part's reset terminal, often linked to a microcontroller. The watchdog's function is to periodically check the internal conditions of the chip and issue a reset signal to the chip in case of errors. Watchdog commands have the highest priority in program interrupt handling.

In complex industrial environments such as factories with large electromechanical equipment, signals, power supplies, and systems may be susceptible to interference. In such cases, it is necessary to implement preventive measures in both software and hardware.

CBM705/706/708/1232 are a group of CMOS monitoring circuits that can monitor power supply voltage, battery faults, and the operating status of microprocessors. These chips integrate commonly used functions like reset and watchdog into one chip, significantly reducing system complexity and component count compared to circuits using discrete components or single-function chips, thereby enhancing system reliability and precision. These products find wide applications in microprocessor and microcontroller systems, embedded controller systems, battery-powered systems, smart meters, power electronics, meters (electricity, water, gas, heat), security monitoring, communication systems, mobile terminals, and more.

At present, Corebai Micro offers a complete range of microprocessor monitoring solutions, covering mainstream models such as 705, 706, 707, 708, 1232, with years of mass production experience and customer recognition. The company supports industrial customers in selecting models and provides perfect replacements for foreign brands with high cost-effectiveness.

RS485 and RS232 Interface Circuits:

Data transfer between computers, or between computers and terminals, can be done using serial communication or parallel communication. Serial communication is widely adopted due to its advantages of using fewer lines and lower costs, especially for long-distance transmission, avoiding inconsistencies associated with multiple lines.

For serial communication, it is essential that both communicating parties use a standard interface to facilitate easy connection between different devices. The RS-232-C interface (also known as EIA RS-232-C) is one of the most commonly used serial communication interfaces. It is a standard for serial binary data exchange between Data Terminal Equipment (DTE) and Data Communication Equipment (DCE).

Due to the limitations of the RS-232 serial standard in field applications with long transmission distances and complexity, the RS-422 and RS-485 interface standards were introduced. RS-485/422 employs balanced transmission and differential reception to achieve communication. The sender converts TTL-level signals from the serial port into differential signals A and B, which are transmitted over cables and then restored to TTL-level signals at the receiver end. With strong common-mode interference rejection capabilities and high sensitivity, RS-485/422 is extensively used in process control (chemical, brewing, papermaking), factory automation (automotive, metallurgy), power industry, security, motor control, motion control, and more.

Corebai Micro currently offers a complete range of 485, 232, 3485, 3232, 3085 interface circuit chips, supporting domestic user design and providing perfect replacements for foreign brands with good cost-effectiveness.

Real-Time Clocks:

Real-time clock (RTC) chips provide accurate real-time information for people or serve as precise time references for electronic systems. Currently, most RTC chips use high-precision crystal oscillators as clock sources. Some clock chips require external battery power to operate in case of main power failure.

Corebai Micro was founded in 2008, officially establishing Corebai Microelectronics (Beijing) Co., Ltd. in 2014. In 2019, the company officially launched its Corebai Micro brand into the market with a product lineup comprising over 300 models across 6 major categories, including ADC/DAC, USB interfaces, interface circuits, general-purpose operational amplifiers, high-voltage operational amplifiers, and instrumentation amplifiers.

Currently, Corebai Micro's authorized distributors include Weijian International, Xinye Electronics, Airui Electronics, Jiade Intelligent, and Shenzhen Kairitong, among others. For more distributor information and device details, you can visit www.corebai.com or consult our authorized distributors.