ds1320 clock chip principle (ds1302 clock chip timing principle)

• 1, Clock chip DS1302 Function and specific introduction
• 2. What is the pin configuration principle of the DS1302 chip in the 51 What is the pin configuration principle of DS1302 chip in single chip microcomputer?
• 3, ds1302 clock chip working principle

Clock chip DS1302 Function and specific introduction

DS1302 is a low power real-time clock chip with trickle current charging capability introduced by DALLAS company. It can time the year, month, day, week, hour, minute, second, and has many functions such as leap year compensation. There are many serial clock circuits, such as DS130 DS130PCF8485Let's wait.

Can also keep the clock running continuously when the main power supply is turned off. The DS1302 is powered by the larger of both VCC1 and VCC2. When VCC2 is greater than VCC1 02V, VCC2 supplies power to DS1302. When VCC2 is less than VCC1, the DS1302 is powered by VCC1. XX2: Source of oscillation. External 32768kHz crystal oscillator.

DS1302 is a high performance, low power consumption, real-time clock circuit with RAM introduced by DALLAS company, which can adjust the year, month, day, week and hour, minute, second timing, with leap year compensation function, the working voltage is 0V ~ 5V.

ds1302 is a high-performance, low-power real-time clock chip launched by DALLAS, USA, with 31 bytes of static RAM, SPI three-wire interface for synchronous communication with the CPU, and can transmit multiple bytes of clock signal and RAM data in a burst mode.

DS1302 pin X1 X2 3768KHz crystal oscillator pin GND CE reset pin I/O data input1 battery powered, can also keep the clock continuous operation) DS1302 working principle is very simple, it is connected to 32768Hz crystal oscillator to provide oscillation clock.

Working principle of ds1302 clock chip: read the time from DS1302 with MCU, set the reset pin (RST) to a high level and load the 8-bit address and command information into the shift register.

Clock circuit principle -- Pin Real-time clock circuit DS1302 includes VCCVCCXXSCLK, I/O, RST, GND eight pins.

DS1302 is a low power real-time clock chip with trickle current charging capability introduced by DALLAS company. It can time the year, month, day, week, hour, minute, second, and has many functions such as leap year compensation. There are many serial clock circuits, such as DS130 DS130PCF8485.

ds1302 clock chip working principle

1, ds1302 clock chip working principle: use the MCU to read the time from DS1302, set the reset foot (RST) to high powerFlat and loads the 8-bit address and command information into the shift register.

2, the working principle of DS1302 is very simple, it is connected with 32768Hz crystal oscillator to provide oscillating clock. After the circuit inside the chip splits the frequency of the crystal oscillator 32768, the second signal with a period of 1S is obtained, and then counts the second signal to obtain the value of minutes, hours, days, weeks, months, years, etc.

3, the clock burst register can read and write all the register contents except the charging register in sequence at one time.