产品概述
描述
The STM6904 supervisor is a low voltage/low supply current processor supervisor, designed to monitor up to four system power supply voltages. This device is targeted at applications such as “Set-Top Boxes” (STBs), portable, battery-powered systems, networking and communication systems.
The device supports a push-button type manual reset input (MR). Two of the four supply monitors (VCCand V2IN) have fixed (customer-selectable, factory-trimmed) thresholds (VRST1and VRST2). The other two voltage monitor inputs (V3IN and V4IN) are monitored using externally adjustable threshold (0.600 V internal reference) to meet specific level requirements.
If any of the four monitored voltages drops below its factory-trimmed or adjustable thresholds, or if the MRis asserted to logic low, the reset output RSTis asserted (driven low). Once asserted, RST is maintained low for a minimum delay period (tREC) after ALL monitored supplies rise above their respective thresholds and MR returns to high. This device is in the correct reset output logic state when VCCgreater than 0.8 V.
The STM6904 is available in a standard 8-lead MSOP (TSSOP) package.
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All features
- Quad voltage monitoring
- Accurate ±1.8% across temperature voltage threshold (±1% at 25 °C)
- Primary supply (VCC) monitor. Fixed (factory -programmed) reset thresholds: 3.078 to 2.188 V
- Second fixed (V2IN) monitor. Fixed (factory-programmed) reset thresholds: 2.333 to 1.110 V
- Two additional adjustable supply monitor inputs (externally adjustable)
- 0.6 V internal reference
- RSToutput (open drain)
- Output guaranteed for VCC ≥ 0.8 V
- Reset delay time (tREC) pin selectable
- Manual reset input (MR)
- Low supply current of 12 μA (typ)
- Power supply voltage 0.8 to 5.5 V
- RoHS compliant (green package)
- 8-pin MSOP/TSSOP
- Operating temperature: –40 to 85 °C (industrial grade)
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STMicroelectronics - STM6904
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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** |
|---|---|---|---|---|---|---|---|
| STM6904PWEDS6F | Active 产品已量产 | MiniSO-8 | Industrial | Ecopack3 | - | - | |
| STM6904SFEDS6F | Active 产品已量产 | MiniSO-8 | Industrial | Ecopack3 | - | - | |
| STM6904SYEDS6F | Active 产品已量产 | MiniSO-8 | Industrial | Ecopack3 | - | - | |
| STM6904TGEDS6F | Active 产品已量产 | MiniSO-8 | Industrial | Ecopack3 | - | - | |
| STM6904TWEDS6F | Active 产品已量产 | MiniSO-8 | Industrial | Ecopack3 | - | - | |
| STM6904TZEDS6F | Active 产品已量产 | MiniSO-8 | Industrial | Ecopack3 | - | - |
STM6904PWEDS6F
Package:
MiniSO-8Material Declaration**:
STM6904SYEDS6F
Package:
MiniSO-8Material Declaration**:
(**) 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 | |||||||||||||
| STM6904PWEDS6F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM6904TWEDS6F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM6904TGEDS6F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM6904TZEDS6F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM6904SYEDS6F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM6904SFEDS6F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
STM6904PWEDS6F Active
STM6904TWEDS6F Active
STM6904TGEDS6F Active
STM6904TZEDS6F Active
STM6904SYEDS6F Active
STM6904SFEDS6F Active