SR2

批量生产

6引脚智能复位

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概述
Online design
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)

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EDA Symbols, Footprints and 3D Models

STMicroelectronics - SR2

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

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**:

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

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) Reset pulse width (mS) (min)
Budgetary Price (US$)*/Qty
更多信息
最小值
最大值
SR2HARU Available at 1 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
Farnell Element14 EUROPE 304 1 马上订购

代理商库存报告日期: 2021-04-12

代理商名称

Farnell Element14

库存

304

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2021-04-12

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel QFN-6L P 0.4 mm -40 85 - 0.3 / 1k
更多信息

Reset pulse width (mS) (max):

-

单价(US$):

0.3

Country of Origin:

MALAYSIA

SR2LARU Available at 2 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
MOUSER WORLDWIDE 2984 1 马上订购
Farnell Element14 EUROPE 2874 1 马上订购

代理商库存报告日期: 2021-04-12

代理商名称

MOUSER

库存

2984

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

2874

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2021-04-12

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel QFN-6L P 0.4 mm -40 85 - 0.3 / 1k
更多信息

Reset pulse width (mS) (max):

-

单价(US$):

0.3

Country of Origin:

MALAYSIA

SR2UABU Available at 2 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
AVNET AMERICA 21000 0 马上订购
P&S ASIA/PACIFIC 480 1 马上订购

代理商库存报告日期: 2021-04-12

代理商名称

AVNET

库存

21000

Min.Order

0

地区

AMERICA 马上订购

P&S

库存

480

Min.Order

1

地区

ASIA/PACIFIC 马上订购

代理商库存报告日期: 2021-04-12

批量生产
EAR99 NEC Tape And Reel QFN-6L P 0.4 mm -40 85 240 0.3 / 1k
更多信息

Reset pulse width (mS) (max):

480

单价(US$):

0.3

Country of Origin:

MALAYSIA

SR2UARU Available at 2 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
MOUSER WORLDWIDE 2839 1 马上订购
Farnell Element14 EUROPE 1618 1 马上订购

代理商库存报告日期: 2021-04-12

代理商名称

MOUSER

库存

2839

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

1618

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2021-04-12

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel QFN-6L P 0.4 mm -40 85 - 0.3 / 1k
更多信息

Reset pulse width (mS) (max):

-

单价(US$):

0.3

Country of Origin:

MALAYSIA

SR2PARU 无法联系到经销商,请联系我们的销售办事处 Buy Direct
批量生产
EAR99 NEC Tape And Reel QFN-6L P 0.4 mm -40 85 - 0.3 / 1k
更多信息

Reset pulse width (mS) (max):

-

单价(US$):

0.3

Country of Origin:

MALAYSIA

SR2LABU Available at 1 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
DIGIKEY WORLDWIDE 7 1 马上订购

代理商库存报告日期: 2021-04-12

代理商名称

DIGIKEY

库存

7

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-04-12

批量生产
EAR99 NEC Tape And Reel QFN-6L P 0.4 mm -40 85 240 0.3 / 1k
更多信息

Reset pulse width (mS) (max):

480

单价(US$):

0.3

Country of Origin:

MALAYSIA

SR2HARU

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3 / 1k

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
Farnell Element14 EUROPE 304 1 马上订购

代理商库存报告日期: 2021-04-12

代理商名称

Farnell Element14

库存

304

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2021-04-12

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

QFN-6L P 0.4 mm

Operating Temperature (°C)

(最小值)

-40

(最大值)

85

Reset pulse width (mS) (min)

-

Reset pulse width (mS) (max)

-

Budgetary Price (US$)* / Qty

0.3 / 1k

Country of Origin

MALAYSIA

SR2LARU

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3 / 1k

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
MOUSER WORLDWIDE 2984 1 马上订购
Farnell Element14 EUROPE 2874 1 马上订购

代理商库存报告日期: 2021-04-12

代理商名称

MOUSER

库存

2984

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

2874

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2021-04-12

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

QFN-6L P 0.4 mm

Operating Temperature (°C)

(最小值)

-40

(最大值)

85

Reset pulse width (mS) (min)

-

Reset pulse width (mS) (max)

-

Budgetary Price (US$)* / Qty

0.3 / 1k

Country of Origin

MALAYSIA

SR2UABU

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3 / 1k

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
AVNET AMERICA 21000 0 马上订购
P&S ASIA/PACIFIC 480 1 马上订购

代理商库存报告日期: 2021-04-12

代理商名称

AVNET

库存

21000

Min.Order

0

地区

AMERICA 马上订购

P&S

库存

480

Min.Order

1

地区

ASIA/PACIFIC 马上订购

代理商库存报告日期: 2021-04-12

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

QFN-6L P 0.4 mm

Operating Temperature (°C)

(最小值)

-40

(最大值)

85

Reset pulse width (mS) (min)

240

Reset pulse width (mS) (max)

480

Budgetary Price (US$)* / Qty

0.3 / 1k

Country of Origin

MALAYSIA

SR2UARU

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3 / 1k

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
MOUSER WORLDWIDE 2839 1 马上订购
Farnell Element14 EUROPE 1618 1 马上订购

代理商库存报告日期: 2021-04-12

代理商名称

MOUSER

库存

2839

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

1618

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2021-04-12

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

QFN-6L P 0.4 mm

Operating Temperature (°C)

(最小值)

-40

(最大值)

85

Reset pulse width (mS) (min)

-

Reset pulse width (mS) (max)

-

Budgetary Price (US$)* / Qty

0.3 / 1k

Country of Origin

MALAYSIA

SR2PARU

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

QFN-6L P 0.4 mm

Operating Temperature (°C)

(最小值)

-40

(最大值)

85

Reset pulse width (mS) (min)

-

Reset pulse width (mS) (max)

-

Budgetary Price (US$)* / Qty

0.3 / 1k

Country of Origin

MALAYSIA

SR2LABU

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3 / 1k

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
DIGIKEY WORLDWIDE 7 1 马上订购

代理商库存报告日期: 2021-04-12

代理商名称

DIGIKEY

库存

7

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-04-12

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

QFN-6L P 0.4 mm

Operating Temperature (°C)

(最小值)

-40

(最大值)

85

Reset pulse width (mS) (min)

240

Reset pulse width (mS) (max)

480

Budgetary Price (US$)* / Qty

0.3 / 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