Key facts
- Brand
- STMicroelectronics
- Model
- M40Z300W
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-06
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STMicroelectronics AN1000 Reduced Footprint Supervisor Application Note
The document introduces the ZEROPOWER and TIMEKEEPER supervisors from STMicroelectronics, specifically models M40Z300W and M48T201V/Y. These devices are designed for surface-mount technology and automatic assembly-line processes, interfacing directly with commodity SRAM and using a commercially available cell for the internal battery.
Read onlineAll STMicroelectronics M40Z300W documents by type
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the combined footprint of an ST supervisor connected to a low power SRAM chip?
The combined footprint measures 0.916 by 0.787 inches.
From: STMicroelectronics AN1000 Reduced Footprint Supervisor Application Note
What is the footprint of a competitor's single chip solution compared to the ST devices?
A competitor's single chip solution might have a footprint of 0.965 by 0.930 inches.
From: STMicroelectronics AN1000 Reduced Footprint Supervisor Application Note
What happens to the SRAM devices when the supply voltage falls below the threshold?
The device switches the SRAMs to battery power, write-protects them, and drives the reset line low.
From: STMicroelectronics AN1021 Application Note Using M40Z300W Supervisor for NVRAM Functionality
How is the internal battery voltage monitored?
The system checks the battery voltage during every power-up and every 24-hour interval while Vcc is valid.
From: STMicroelectronics AN1021 Application Note Using M40Z300W Supervisor for NVRAM Functionality