STM6520

Active

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

Download datasheet
Overview
Online design
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Partner products
Sales Briefcase

Product overview

Description

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.
  • All features

    • 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

Circuit Diagram

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STM6520

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

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM6520AQRRDG9F
Active
DFN-8L P 0.5 mm Industrial Ecopack3

STM6520AQRRDG9F

Package:

DFN-8L P 0.5 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN-8L P 0.5 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Reset pulse width (mS) (min)
Budgetary Price (US$)*/Qty
More info
min
max
STM6520AQRRDG9F Available at 2 distributors

Distributor availability ofSTM6520AQRRDG9F

Distributor Name
Region Stock Min. Order Third party link
FUTURE WORLDWIDE 6000 3000 Buy from Distributor
Farnell Element14 EUROPE 5965 1 Buy from Distributor

Distributor reported inventory date: 2022-01-19

Distributor Name

FUTURE

Stock

6000

Min.Order

3000

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

5965

Min.Order

1

Distributor reported inventory date: 2022-01-19

Active
EAR99 NEC Tape And Reel DFN-8L P 0.5 mm -30 85 - 0.4574 / 1k
MORE INFO

Reset pulse width (mS) (max):

-

Unit Price (US$):

0.4574

Country of Origin:

MALAYSIA

STM6520AQRRDG9F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4574 / 1k

Distributor availability ofSTM6520AQRRDG9F

Distributor Name
Region Stock Min. Order Third party link
FUTURE WORLDWIDE 6000 3000 Buy from Distributor
Farnell Element14 EUROPE 5965 1 Buy from Distributor

Distributor reported inventory date: 2022-01-19

Distributor Name

FUTURE

Stock

6000

Min.Order

3000

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

5965

Min.Order

1

Distributor reported inventory date: 2022-01-19

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN-8L P 0.5 mm

Operating Temperature (°C)

(min)

-30

(max)

85

Reset pulse width (mS) (min)

-

Reset pulse width (mS) (max)

-

Budgetary Price (US$)* / Qty

0.4574 / 1k

Country of Origin

MALAYSIA

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