Differences and Similarities between Epson Clock Chip RX8025T UB and RX8025T UC

Jun 14,2024
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The Aishousheng clock chip RX8025T is a high-precision real-time clock chip with characteristics such as high precision, low power consumption, small size, wide voltage range, and built-in EEPROM. It is widely used in electricity meters, water meters, gas meters, level conversion, EMI sensitive transceiver applications, industrial control, access control, security systems, and other fields.

The clock chip RX8025T is a new type of real-time clock chip with a 12C interface and temperature compensation function. The EPSON clock chip, also abbreviated as 8025T or RX8025T, is a real-time clock module launched by EPSON based on its popular RX-8025SA and RX-8025NB series clock chips and special requirements of China's smart grid. It is divided into two types: UB and UC.

The difference between RX8025TUB and RX8025TUC

1. Epson RX8025T is a clock chip designed specifically for electronic energy meters, available in two types: UB and UC. Due to the embedded digital temperature compensation crystal oscillator, it maintains high accuracy over a wide temperature range. The RX8025T UB is an industrial grade product with a wider temperature range, which can maintain high precision and stability from -40 ℃ to+85 ℃, ensuring an accuracy of 5ppm The RX8025T UC is a civilian grade product, or also known as a commercial grade, which can maintain high precision and stability from -30 ℃ to+70 ℃, ensuring an accuracy of 5ppm. 2. Based on performance differences, the price of the RX8025TUB (industrial grade) is slightly higher than that of the RX8025TUC (commercial grade), but the difference is not significant

The same for RX8025TUB and RX8025TUC

After discussing the differences between RX8025T UB and RX8025TUC, let's talk about the similarities. At the corresponding other operating temperatures, the parameters of both are completely consistent and can be replaced with each other at room temperature.

The parameter characteristics are as follows:

1. Equipped with a 32.768KHz DTCXO (digital temperature compensated crystal oscillator) with high stability

2. Supports high-speed mode of 12C bus (400K)

3. Timed alarm function (can be set t day, date, hour, minute)

4. Fixed cycle timed interrupt function.

5. Time update interrupt function

6.32.768KHz frequency output (with enable OE function)

7. Yan Nian's automatic adjustment function. (2000 to 2099)

8. Wide range interface voltage: 2.2V to 5.5V

9. Wide range of time holding voltage: 1.8V to 5.5V

10. Low current power consumption: 0.8uA/3V (Typ.)