SR1 | 产品 - 意法半导体

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Product overview

描述

The Smart Reset^TMdevices provide a useful feature which ensures that inadvertent short reset push-button closures do not cause system resets. This is done by implementing an extended Smart Reset input delay time (t_SRC), which ensures a safe reset and eliminates the need for a specific dedicated reset button.

This reset configuration provides versatility and allows the application to distinguish between a software generated interrupt and a hard system reset. When the input push-button is connected to the microcontroller interrupt input, and is closed for a short time, the processor can only be interrupted. If the system still does not respond properly, continuing to keep the push-button closed for the extended setup time t_SRCcauses a hard reset of the processor through the reset output.

The SR1 has one Smart Reset input (SR) with preset delayed Smart Reset setup time (t_SRC). The reset output (RST) is asserted after the Smart Reset input is held active for the selected t_SRCdelay time. The RSToutput remains asserted either until the SRinput goes to inactive logic level (i.e. neither fixed nor minimum reset pulse width is set) or the output reset pulse duration is fixed for t_REC(i.e. factory-programmed). The device fully operates over a broad V_CCrange from 2.0 V to 5.5 V.

All features
Operating voltage range 2 V to 5.5 V

Low supply current 1 μA

Integrated test mode

Single Smart Reset™ push-button input with fixed extended reset setup delay (t_SRC) from 0.5 s to 10 s in 0.5 s steps (typ.), option with internal input pull-up resistor

Push-button controlled reset pulse duration

Option 1: fully push-button controlled, no fixed or minimum pulse width guaranteed

Option 2: defined output reset pulse duration (t_REC), factory-programmed

Single reset output

Active low or active high

Push-pull or open drain with optional pull-up resistor

Fixed Smart Reset input logic voltage levels

Operating temperature: -40 °C to +85 °C

UDFN6 package 1.00 mm x 1.45 mm

ECOPACK^®2 (RoHS compliant, Halogen-Free)
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EDA Symbols, Footprints and 3D Models

Quality and Reliability

Part Number	Marketing Status	Package	Grade	符合RoHS级别	Longevity Commitment	Longevity Starting Date	Material Declaration**
SR1CARU	Active	UFDFPN 1X1.45X0.6 6L PITCH0.5	Industrial	Ecopack3	-	-	PDF XML
SR1HARU	Active	UFDFPN 1X1.45X0.6 6L PITCH0.5	Industrial	Ecopack3	-	-	PDF XML
SR1LARU	Active	UFDFPN 1X1.45X0.6 6L PITCH0.5	Industrial	Ecopack3	-	-	PDF XML
SR1PAAU	Active	UFDFPN 1X1.45X0.6 6L PITCH0.5	Industrial	Ecopack3	-	-	PDF XML
SR1PARU	Active	UFDFPN 1X1.45X0.6 6L PITCH0.5	Industrial	Ecopack3	-	-	PDF XML
SR1PBBU	Active	UFDFPN 1X1.45X0.6 6L PITCH0.5	Industrial	Ecopack3	-	-

SR1CARU

Package:

UFDFPN 1X1.45X0.6 6L PITCH0.5

Material Declaration**:

SR1HARU

Package:

UFDFPN 1X1.45X0.6 6L PITCH0.5

Material Declaration**:

SR1LARU

Package:

UFDFPN 1X1.45X0.6 6L PITCH0.5

Material Declaration**:

SR1PAAU

Package:

UFDFPN 1X1.45X0.6 6L PITCH0.5

Material Declaration**:

SR1PARU

Package:

UFDFPN 1X1.45X0.6 6L PITCH0.5

Material Declaration**:

SR1PBBU

Package:

UFDFPN 1X1.45X0.6 6L PITCH0.5

Material 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。

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)

Reset pulse width (mS) (min)

Reset pulse width (mS) (max)

最小值

最大值

Available at distributors

经销商的可用性 SR1PBBU

代理商名称	地区	Stock	最小订购量	第三方链接

代理商库存报告日期:

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Buy from Distributor

Available at distributors

经销商的可用性 SR1HARU

代理商名称	地区	Stock	最小订购量	第三方链接

代理商库存报告日期:

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Buy from Distributor

Available at distributors

经销商的可用性 SR1CARU

代理商名称	地区	Stock	最小订购量	第三方链接

代理商库存报告日期:

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Buy from Distributor

Available at distributors

经销商的可用性 SR1PARU

代理商名称	地区	Stock	最小订购量	第三方链接

代理商库存报告日期:

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Buy from Distributor

Available at distributors

经销商的可用性 SR1PAAU

代理商名称	地区	Stock	最小订购量	第三方链接

代理商库存报告日期:

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Buy from Distributor

Available at distributors

经销商的可用性 SR1LARU

代理商名称	地区	Stock	最小订购量	第三方链接

代理商库存报告日期:

无法联系到经销商，请联系我们的销售办事处

Buy from Distributor

SR1PBBU Active

Budgetary Price (US$)*/Qty:

-

Available at distributors

无法联系到经销商，请联系我们的销售办事处

Buy Direct at ST

Add Free Sample

Package:

Packing Type:

RoHS:

Country of Origin:

ECCN (US):

ECCN (EU):

SR1HARU Active

Budgetary Price (US$)*/Qty:

-

Available at distributors

无法联系到经销商，请联系我们的销售办事处

Buy Direct at ST

Add Free Sample

Package:

Packing Type:

RoHS:

Country of Origin:

ECCN (US):

ECCN (EU):

SR1CARU Active

Budgetary Price (US$)*/Qty:

-

Available at distributors

无法联系到经销商，请联系我们的销售办事处

Buy Direct at ST

Add Free Sample

Package:

Packing Type:

RoHS:

Country of Origin:

ECCN (US):

ECCN (EU):

SR1PARU Active

Budgetary Price (US$)*/Qty:

-

Available at distributors

无法联系到经销商，请联系我们的销售办事处

Buy Direct at ST

Add Free Sample

Package:

Packing Type:

RoHS:

Country of Origin:

ECCN (US):

ECCN (EU):

SR1PAAU Active

Budgetary Price (US$)*/Qty:

-

Available at distributors

无法联系到经销商，请联系我们的销售办事处

Buy Direct at ST

Add Free Sample

Package:

Packing Type:

RoHS:

Country of Origin:

ECCN (US):

ECCN (EU):

SR1LARU Active

Budgetary Price (US$)*/Qty:

-

Available at distributors

无法联系到经销商，请联系我们的销售办事处

Buy Direct at ST

Add Free Sample

Package:

Packing Type:

RoHS:

Country of Origin:

ECCN (US):

ECCN (EU):

(*) 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。