SR2

批量生产
Design Win

6引脚智能复位

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概述
样片和购买
解决方案
文件
CAD资源
工具与软件
质量与可靠性
开始
Partner products
Sales Briefcase

产品概述

描述

The Smart Reset™ devices provide a useful feature that ensures inadvertent short reset push-button closures do not cause system resets. This is done by implementing extended Smart Reset™ input delay time (tSRC) and combined push-button inputs, which together 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 are connected to microcontroller interrupt inputs, and are 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 tSRCcauses a hard reset of the processor through the reset output.

The SR2 has two combined delayed Smart Reset™ inputs (SR0, SR1) with preset delayed Smart Reset™ setup time (tSRC). The reset output is asserted after both of the Smart Reset™ inputs were held active for the selected tSRCdelay time. Depending on selected option the RSToutput remains asserted either until at least one 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 tREC(i.e. factory-programmed). The reset output, RST, is active low or active high, push-pull or open drain with optional pull-up resistor. The device fully operates over a broad VCCrange 1.65 V to 5.5 V. Below 1.575 V typ. the inputs are ignored and outputs are deasserted; the deasserted reset output levels are then valid down to 1.0 V.

  • 所有功能

    • Operating voltage 1.65 V to 5.5 V
    • Low supply current 1.5 μA
    • Integrated test mode
    • Dual Smart Reset™ push-button inputs with fixed extended reset setup delay (tSRC) from 0.5 s to 10 s in 0.5 s steps (typ.), option with internal 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 (tREC), factory-programmed
    • No power-on reset
    • 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: 1.6 mm x 1.3 mm
    • ECOPACK®2 (RoHS compliant, Halogen-Free)

EDA符号、封装和3D模型

STMicroelectronics - SR2

为您的应用下载所有EDA符号、封装和3D模型,加快您的设计速度。您可以从大量CAD格式中进行选择,以匹配您的设计工具链。

Symbols

符号

Footprints

封装

3D model

3D模型

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**
SR2HARU
批量生产
QFN-6L P 0.4 mm 工业 Ecopack3
SR2LABU
批量生产
QFN-6L P 0.4 mm 工业 Ecopack3
SR2LARU
批量生产
QFN-6L P 0.4 mm 工业 Ecopack3
SR2PARU
批量生产
QFN-6L P 0.4 mm 工业 Ecopack3
SR2UABU
批量生产
QFN-6L P 0.4 mm 工业 Ecopack3
SR2UARU
批量生产
QFN-6L P 0.4 mm 工业 Ecopack3

SR2HARU

Package:

QFN-6L P 0.4 mm

Material Declaration**:

Marketing Status

批量生产

Package

QFN-6L P 0.4 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack3

SR2LABU

Package:

QFN-6L P 0.4 mm

Material Declaration**:

Marketing Status

批量生产

Package

QFN-6L P 0.4 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack3

SR2LARU

Package:

QFN-6L P 0.4 mm

Material Declaration**:

Marketing Status

批量生产

Package

QFN-6L P 0.4 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack3

SR2PARU

Package:

QFN-6L P 0.4 mm

Material Declaration**:

Marketing Status

批量生产

Package

QFN-6L P 0.4 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack3

SR2UABU

Package:

QFN-6L P 0.4 mm

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

QFN-6L P 0.4 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack3

SR2UARU

Package:

QFN-6L P 0.4 mm

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

QFN-6L P 0.4 mm

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

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产品型号
Order from distributors
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Reset pulse width (mS) (min)
Budgetary Price (US$)*/Qty
Reset pulse width (mS) (max)
单价(US$)
Country of Origin
最小值
最大值
SR2HARU Available at distributors

经销商的可用性 SR2HARU

代理商名称
地区 库存 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
批量生产
EAR99 NEC Tape and Reel QFN-6L P 0.4 mm -40 85 -

-

0.4002

MALAYSIA

SR2LARU Available at distributors

经销商的可用性 SR2LARU

代理商名称
地区 库存 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
批量生产
EAR99 NEC Tape and Reel QFN-6L P 0.4 mm -40 85 -

-

0.4002

MALAYSIA

SR2UABU Available at distributors

经销商的可用性 SR2UABU

代理商名称
地区 库存 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
批量生产
EAR99 NEC Tape and Reel QFN-6L P 0.4 mm -40 85 240

480

0.4002

MALAYSIA

SR2UARU Available at distributors

经销商的可用性 SR2UARU

代理商名称
地区 库存 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
批量生产
EAR99 NEC Tape and Reel QFN-6L P 0.4 mm -40 85 -

-

0.4002

MALAYSIA

SR2PARU Available at distributors

经销商的可用性 SR2PARU

代理商名称
地区 库存 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
批量生产
EAR99 NEC Tape and Reel QFN-6L P 0.4 mm -40 85 -

-

0.4002

MALAYSIA

SR2LABU Available at distributors

经销商的可用性 SR2LABU

代理商名称
地区 库存 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
批量生产
EAR99 NEC Tape and Reel QFN-6L P 0.4 mm -40 85 240

480

0.4002

MALAYSIA

SR2HARU 批量生产

封装:
QFN-6L P 0.4 mm
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

SR2HARU

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Reset pulse width (mS) (min):

-

Reset pulse width (mS) (max):

-

Country of Origin:

MALAYSIA

SR2LARU 批量生产

封装:
QFN-6L P 0.4 mm
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

SR2LARU

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Reset pulse width (mS) (min):

-

Reset pulse width (mS) (max):

-

Country of Origin:

MALAYSIA

SR2UABU 批量生产

封装:
QFN-6L P 0.4 mm
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

SR2UABU

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Reset pulse width (mS) (min):

240

Reset pulse width (mS) (max):

480

Country of Origin:

MALAYSIA

SR2UARU 批量生产

封装:
QFN-6L P 0.4 mm
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

SR2UARU

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Reset pulse width (mS) (min):

-

Reset pulse width (mS) (max):

-

Country of Origin:

MALAYSIA

SR2PARU 批量生产

封装:
QFN-6L P 0.4 mm
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

SR2PARU

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Reset pulse width (mS) (min):

-

Reset pulse width (mS) (max):

-

Country of Origin:

MALAYSIA

SR2LABU 批量生产

封装:
QFN-6L P 0.4 mm
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

SR2LABU

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Reset pulse width (mS) (min):

240

Reset pulse width (mS) (max):

480

Country of Origin:

MALAYSIA

代理商名称

代理商库存报告日期:

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(*) 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