CBM812Z A microprocessor monitoring circuit with logic high-level RESET output

The CBM811/CBM812 are reliable voltage monitoring devices suitable for use in most voltage monitoring applications. The CBM811/CBM812 are designed to monitor six different voltages.These voltages have been selected for the effective monitoring of 2.5 V, 3 V, 3.3 V, and 5V supply voltage levels. Included in this circuit is a debounced manual reset input. Reset can be activated using an electrical switch (or an input from another digital device) or by a degradation of the supply voltage.
The manual reset function is very useful, especially if the circuit in which the CBM811/CBM812 are operating enters into a state that can only be detected by the user. Allowing the user to reset a system manually can reduce the damage or danger that could otherwise be caused by an out-of-control or locked system.

Parameters
Features
Applications

Threshold voltage:4.63V
Product type:Power-On Reset
Monitoring voltage:1
Output:Push-Pull
Reset:Active High
Reset timeout:140ms

Precision voltage monitor: 2.32V(CBM811Z/812Z) / 2.63 V(CBM811R/812R) / 2.93 V (CBM811S/812S)/3.08 V (CBM811T/812T) / 4.38 V(CBM811M/812M) / 4.63 V
(CBM811L/812L)
Low power consumption: 5μA typical
Reset assertion down to 1 VCC
Power-on reset: 140 ms minimum
Logic low RESET output (CBM811)
Logic high RESET output (CBM812)
Built-in manual reset

Microprocessor systems
Controllers
Intelligent instruments
Automotive systems
Safety systems
Portable instruments

Type	Title	File Size	Date	Download
Selection Guide	Corebai Selection Guide Rev.En2025.pdf	7.73M	2024-01-24	Download

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ANALOG-ENGINEER-CALC — 模拟工程师计算器

模拟工程师计算器旨在加快模拟电路设计工程师经常使用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算的列表（从使用反馈电阻器设置运算放大器增益到为稳定模数转换器 (ADC) 驱动器缓冲器电路选择合适的电路设计元件）。除了可用作单独的工具之外，该计算器还能够很好地与模拟工程师口袋参考书中所述的概念配合使用。

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计算工具

ANALOG-ENGINEER-CALC — 模拟工程师计算器

模拟工程师计算器旨在加快模拟电路设计工程师经常使用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算的列表（从使用反馈电阻器设置运算放大器增益到为稳定模数转换器 (ADC) 驱动器缓冲器电路选择合适的电路设计元件）。除了可用作单独的工具之外，该计算器还能够很好地与模拟工程师口袋参考书中所述的概念配合使用。

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Product number	Rating	Inventory(pcs)	Price	Package	MSL	RoHS	MPQ	Operating Temperature Range (℃)	Order
CBM812ZST4	Industrial grade	16000	10~99 \| $ 0.11  100~999$0.11 1000~2999$0.09 3000+$0.06	SOT-143-4	MSL 3	RoHS	Tape and Reel, 3000	-40 to 85	- + Requested quantity exceeds in stock amount Add to cart