Part 3.16: Eeprom And Temperature Sensor - Alinx ZYNQ UltraScale+ AXU9EGB User Manual

clock information. At the same time, in order for the real-time clock to operate
normally after the product is powered off, it is generally necessary to equip the
(model LR1130, voltage is
coin battery
The BT1 on the development board is a battery Socket. After we put the coin
battery, even the system is off, the coin battery can also power the RTC system
and provide continuous time information.

Part 3.16: EEPROM and Temperature Sensor

The AXU9EGB Fpga development board has an EEPROM onboard. The
model of the EEPROM is 24LC04, and the capacity is: 4Kbit (2 * 256 * 8bit),
which is connected to the PS terminal through the I2C bus.
A high-precision, low-power, digital temperature sensor chip is installed on
the AXU9EGB FPGA development board, and the model is LM75 from ON
Semiconductor. The temperature accuracy of the LM75 chip is 0.5 degrees.
The EEPROM and temperature sensor are mounted on the Bank500 MIO
of ZYNQ UltraScale+ through the I2C bus. Figure 3-16-1 is the schematic
diagram of EEPROM and temperature sensor
60 / 66
Figure 3-15-1: RTC Schematic
AXU9EGB User Manual
5V) to supply power to the clock chip.
www.alinx.com