Operating temperatures should be greater than -40°C.A temperature lower than 85°C should be used for operating.A minimum voltage of 1.8V is required for operation.There is a maximal supply voltage of 5.5V when real time clocks are operating.
PCF8564AU/5GE/1,01 Features
PCF8564AU/5GE/1,01 Applications
There are a lot of NXP Semiconductors / Freescale PCF8564AU/5GE/1,01 Real Time Clocks applications.