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  • STM181x devices are low power reset devices used to monitor power supplies for microcontrollers. They perform a single function: asserting a reset signal whenever VCCsupply voltage drops below a preset value and keeping it asserted until VCChas risen above the preset threshold for a minimum period of time (trec). They provide excellent circuit reliability without additional external components when used with +3.0 V / +3.3 V (STM1815–STM1818), and +5 V (STM1810–STM1813) power supply systems.

    A precision voltage reference and comparator monitors the VCCinput for an out-of-tolerance condition. When an invalid VCCcondition occurs, the reset output (RST) is forced low (or high in the case of RST) and remains asserted for trecafter VCCrises above the reset threshold. The STM1813/1818 also keep reset asserted for trecafter the output is momentarily pulled to ground by an external push-button switch.
    The STM1812 and STM1817 have an active-high, push-pull output. The STM1810 and STM1815 (push-pull) and STM1811, STM1813, STM1816, and STM1818 (open-drain) have an active-low RSToutput. The open-drain devices (STM1811 / STM1813 / STM1816 / STM1818) also have an internal pull-up resistor to VCC. The STM1813 and STM1818 feature a debounced manual reset feature that asserts a reset if the RSTpin is pulled low for more than 1.5 μs. When used to initiate manual reset, RSTdebounces signals from devices such as mechanical switches. For devices with this feature, the release of the external switch triggers the reset period.
    The STM181x devices are guaranteed to output the correct logic state for VCCdown to 1.0 V (0 °C to +105 °C). They also provide a reset comparator designed to ignore fast transients on VCC.
    Reset thresholds are available between +2.55 V and +4.62 V. These small, low power devices are ideal for use in portable equipment. All are available in the space-saving 3-pin SOT23 package, and are specified from –40 °C to +105 °C.

    主要特性

    • Precision monitoring of 3 V, 3.3 V, and 5 V supply voltages
    • Four output configurations:
      • Push-pull, active-high (STM1812,1817)
      • Push-pull, active-low (STM1810,1815)
      • Open-drain, active-low (STM1811,1816)
      • Open-drain, active-low with push-button detect (STM1813,1818)
    • Reset pulse width - 100 ms (min.)
    • Low supply current - 4 μA (typ.)
    • Guaranteed assertion down to VCC= 1.0 V (0 °C to 105 °C)
    • Factory-trimmed reset thresholds of 2.55 V, 2.88 V, 3.06 V, 4.37 V, and 4.62 V (typ.)
    • Power supply transient immunity
    • Push-button/manual reset detect (STM1813/1818)
    • Operating temperature: –40 °C to 105 °C
    • ± 2.5% reset threshold accuracy:(–40 °C to 105 °C)
    • Available in the SOT23-3 package
    • Fully compatible with DS181x and MXD181x products.

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质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
STM1813LWX7F
批量生产
SOT23 工业 Ecopack3
STM1813MWX7F
批量生产
SOT23 工业 Ecopack3

STM1813LWX7F

Package:

SOT23

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SOT23

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM1813MWX7F

Package:

SOT23

Material Declaration**:

Marketing Status

批量生产

Package

SOT23

Grade

Industrial

RoHS Compliance Grade

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

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Voltage Reset 1 (V) (typ)
Budgetary Price (US$)*/Qty
更多信息
最小值
最大值
STM1813MWX7F Available at 1 distributors

经销商的可用性STM1813MWX7F

代理商名称
地区 库存 最小订购量 第三方链接
RS COMPONENTS EUROPE 1970 1 马上订购

代理商库存报告日期: 2020-11-23

代理商名称

RS COMPONENTS

库存

1970

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-11-23

Buy Direct
批量生产
EAR99 NEC Tape And Reel SOT23 -40 105 4.37 0.35 / 1k
更多信息

Voltage Reset 2 (V) (typ):

-

单价(US$):

0.35

Country of Origin:

MALAYSIA

STM1813LWX7F Available at 6 distributors

经销商的可用性STM1813LWX7F

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2643 1 马上订购
AVNET AMERICA 3000 0 马上订购
FUTURE WORLDWIDE 6000 3000 马上订购
ARROW EUROPE 3000 0 马上订购
MOUSER WORLDWIDE 2461 1 马上订购
Farnell Element14 EUROPE 5880 1 马上订购

代理商库存报告日期: 2020-11-24

代理商名称

DIGIKEY

库存

2643

Min.Order

1

地区

WORLDWIDE 马上订购

AVNET

库存

3000

Min.Order

0

地区

AMERICA 马上订购

FUTURE

库存

6000

Min.Order

3000

地区

WORLDWIDE 马上订购

ARROW

库存

3000

Min.Order

0

地区

EUROPE 马上订购

MOUSER

库存

2461

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

5880

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-11-24

Buy Direct
批量生产
EAR99 NEC Tape And Reel SOT23 -40 105 4.62 0.35 / 1k
更多信息

Voltage Reset 2 (V) (typ):

-

单价(US$):

0.35

Country of Origin:

MALAYSIA

STM1813MWX7F

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.35 / 1k

经销商的可用性STM1813MWX7F

代理商名称
地区 库存 最小订购量 第三方链接
RS COMPONENTS EUROPE 1970 1 马上订购

代理商库存报告日期: 2020-11-23

代理商名称

RS COMPONENTS

库存

1970

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-11-23

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SOT23

Operating Temperature (°C)

(最小值)

-40

(最大值)

105

Voltage Reset 1 (V) (typ)

4.37

Voltage Reset 2 (V) (typ)

-

Budgetary Price (US$)* / Qty

0.35 / 1k

Country of Origin

MALAYSIA

STM1813LWX7F

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.35 / 1k

经销商的可用性STM1813LWX7F

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2643 1 马上订购
AVNET AMERICA 3000 0 马上订购
FUTURE WORLDWIDE 6000 3000 马上订购
ARROW EUROPE 3000 0 马上订购
MOUSER WORLDWIDE 2461 1 马上订购
Farnell Element14 EUROPE 5880 1 马上订购

代理商库存报告日期: 2020-11-24

代理商名称

DIGIKEY

库存

2643

Min.Order

1

地区

WORLDWIDE 马上订购

AVNET

库存

3000

Min.Order

0

地区

AMERICA 马上订购

FUTURE

库存

6000

Min.Order

3000

地区

WORLDWIDE 马上订购

ARROW

库存

3000

Min.Order

0

地区

EUROPE 马上订购

MOUSER

库存

2461

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

5880

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-11-24

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SOT23

Operating Temperature (°C)

(最小值)

-40

(最大值)

105

Voltage Reset 1 (V) (typ)

4.62

Voltage Reset 2 (V) (typ)

-

Budgetary Price (US$)* / Qty

0.35 / 1k

Country of Origin

MALAYSIA

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商