Product overview
描述
The STM809/810/811/812 MICROPROCESSOR RESET Circuits are low-power supervisory devices used to monitor power supplies. They perform a single function: asserting a reset signal whenever the VCC supply voltage drops below a preset value and keeping it asserted until VCC has risen above the preset threshold for a minimum period of time (trec). The STM811/812 also provide a push-button reset input (MR).
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All features
- Lead-free, small SOT23 and SOT143 package
- Operating temperature: –40 °C to 85 °C (industrial grade)
- Precision monitoring of 3 V, 3.3 V, and 5 V supply voltages
- 140 ms reset pulse width (min)
- Two output configurations
Push-pull RST output (STM809/811) Push-pull RST output (STM810/812) - Guaranteed
RST/RST assertion down to VCC = 1.0 V - Low supply current - 6 µA (typ)
电路原理图
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STMicroelectronics - STM812
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | 符合RoHS级别 | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| STM812LW16F | Active 产品已量产 | SOT-143 4 | Industrial | Ecopack3 | - | - | |
| STM812MW16F | Active 产品已量产 | SOT-143 4 | Industrial | Ecopack3 | - | - | |
| STM812RW16F | Active 产品已量产 | SOT-143 4 | Industrial | Ecopack3 | - | - | |
| STM812SW16F | Active 产品已量产 | SOT-143 4 | Industrial | Ecopack3 | - | - | |
| STM812TW16F | Active 产品已量产 | SOT-143 4 | Industrial | Ecopack3 | - | - |
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
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Sample & Buy
| Part Number | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| STM812TW16F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM812SW16F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM812LW16F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM812RW16F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM812MW16F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
STM812TW16F Active
STM812SW16F Active
STM812LW16F Active
STM812RW16F Active
STM812MW16F Active