Dual push-button smart reset with push-button controlled output delay

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  • 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 discriminate between a software generated interrupt and a hard system reset. When the input push-buttons 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-buttons closed for the extended setup time tSRCcauses a hard reset of the processor through the reset outputs.
    The STM6520 has two combined delayed Smart Reset™ inputs (SR0, SR1) with two user-selectable delayed Smart Reset™ setup time (tSRC) options of 7.5 s and 12.5 s typ., selected by a dual-state Smart Reset™ DSR input pin. When DSR is connected to ground, tSRC= 7.5 s, when connected to VCC, tSRC= 12.5 s (typ.). There are two reset outputs, both going active simultaneously after both of the Smart Reset™ inputs were held active for the selected tSRC delay time. The outputs remain asserted until either or both inputs go to inactive logic level (for this device the output reset pulse duration is fully push-button controlled, meaning neither fixed nor minimum reset pulse width, nor power-on reset pulse is implemented). The first reset output, RST1, is active-low, open-drain; the second reset output, RST2, is active-high, push-pull. The device fully operates over a broad VCC range 1.65 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.

    主な特徴

    • Dual Smart Reset™ push-button inputs, with user-selectable extended reset setup delay (by two-state input logic): tSRC = 6, 10 s (min.)
    • Push-button controlled reset pulse duration (no fixed nor minimum pulse width guaranteed)
    • No power-on reset
    • Dual reset outputs
      • RST1- active-low, open-drain
      • RST2 - active-high, push-pull
    • Fixed Smart Reset™ input logic voltage levels
    • Broad operating voltage range 1.65 V to 5.5 V, inactive reset output levels valid down to 1.0 V
    • Low supply current 1.5 μA
    • Operating temperature: –30 °C to +85 °C
    • TDFN8 package: 2 mm x 2 mm x 0.75 mm
    • RoHS compliant

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Reset pulse width (mS) (min)
Reset pulse width (mS) (max)
温度(℃) 製品ステータス
概算価格(USS)
詳細情報
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min
max
STM6520AQRRDG9F DFN8 2x2x0.75 Tape And Reel - - -30
Active
0.39 1000
詳細情報

Operating Temperature (°C) (max):

85

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

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Distributor availability ofSTM6520AQRRDG9F

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DIGIKEY WORLDWIDE 5694 1 Order Now
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代理店レポートによる在庫データ: 2020-01-27

代理店名

DIGIKEY

在庫

5694

Min.Order

1

地域

WORLDWIDE Order Now

P&S

在庫

1050

Min.Order

1

地域

ASIA/PACIFIC Order Now

MOUSER

在庫

2205

Min.Order

1

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WORLDWIDE Order Now

代理店レポートによる在庫データ: 2020-01-27

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STM6520AQRRDG9F

パッケージ

DFN8 2x2x0.75

梱包タイプ

Tape And Reel

Unit Price (US$)

0.39*

Distributor availability ofSTM6520AQRRDG9F

代理店名
地域 在庫 最小発注 Third party link
DIGIKEY WORLDWIDE 5694 1 Order Now
P&S ASIA/PACIFIC 1050 1 Order Now
MOUSER WORLDWIDE 2205 1 Order Now

代理店レポートによる在庫データ: 2020-01-27

代理店名

DIGIKEY

在庫

5694

Min.Order

1

地域

WORLDWIDE Order Now

P&S

在庫

1050

Min.Order

1

地域

ASIA/PACIFIC Order Now

MOUSER

在庫

2205

Min.Order

1

地域

WORLDWIDE Order Now

代理店レポートによる在庫データ: 2020-01-27

Reset pulse width (mS) (min)

-

Reset pulse width (mS) (max)

-

Operating Temperature (°C)

(min)

-30

製品ステータス

Active

Unit Price (US$)

0.39

Quantity

1000

(max)

85

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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技術文書

    • 概要 Version Size Action
      DS6371
      Dual push-button Smart ResetTM with push-button controlled output delay
      6.1
      254.17 KB
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      DS6371

      Dual push-button Smart ResetTM with push-button controlled output delay

    • 概要 Version Size Action
      AN3261
      Dual push-button Smart Reset™ devices with user-adjustable setup delays
      1.1
      630.21 KB
      PDF
      AN3261

      Dual push-button Smart Reset™ devices with user-adjustable setup delays

    • 概要 Version Size Action
      TN0941
      Reset and supervisor ICs: frequently asked questions (FAQ)
      1.0
      328.63 KB
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      TN0941

      Reset and supervisor ICs: frequently asked questions (FAQ)

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      Resets and supervisors - portfolio overview 1.0
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製品型番 製品ステータス パッケージ グレード RoHSコンプライアンスグレード 材料宣誓書**
STM6520AQRRDG9F
Active
DFN8 2x2x0.75 Industrial Ecopack3

STM6520AQRRDG9F

Package:

DFN8 2x2x0.75

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN8 2x2x0.75

Grade

Industrial

RoHS Compliance Grade

Ecopack3

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