2 3.0/3.3V I C Combination Serial RTC, NVRAM Supervisor And Microprocessor Supervisor

The M41ST85W is a combination Serial Real-Time Clock Microprocessor Supervisor and NVRAM Supervisor. It is built in a low power CMOS SRAM process and has a 64-byte memory space with 44 bytes of NVRAM and 20 memory-mapped RTC Registers (see Table 2 on page 20). The RTC Registers are configured in binary coded decimal (BCD) format. 2 The M41ST85W combines a 400kHz I C Serial RTC with an Automatic Back-up Battery Switchover circuit for powering an external LPSRAM as well as the internal RTC When power begins to fail, the switchover automatically connects to the back-up battery to keep the RTC and external LPSRAM alive in the absence of system power. Access to the LPSRAM is also cut off via a chip-enable Gate function, thereby write-protecting the memory. A programmable Watchdog and Power-on Reset/Low Voltage Detect function are the key elements in the Microprocessor Supervisor section. By STMicroelectronics
M41ST85W 's PackagesM41ST85W 's pdf datasheet

M41ST85W Pinout, Pinouts
M41ST85W pinout,Pin out
This is one package pinout of M41ST85W,If you need more pinouts please download M41ST85W's pdf datasheet.

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