STM6524AHARDL6F STMicroelectronics, STM6524AHARDL6F Datasheet

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STM6524AHARDL6F

Manufacturer Part Number
STM6524AHARDL6F
Description
Supervisory Circuits 6-Pin Smart Reset 1.65V to 5.5V 1.5uA
Manufacturer
STMicroelectronics
Series
STM6524r
Datasheet

Specifications of STM6524AHARDL6F

Product Category
Supervisory Circuits
Rohs
yes
Output Type
Active Low, Open Drain
Manual Reset
Resettable
Watchdog
No Watchdog
Battery Backup Switching
No Backup
Power-up Reset Delay (typ)
4 s
Supply Voltage - Max
5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
UDFN-6
Minimum Operating Temperature
- 40 C
Supply Current (typ)
1.5 uA
Supply Voltage - Min
1.65 V
Features
August 2012
This is information on a product in full production.
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 (t
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
– Option 2: defined output reset pulse
No power-on reset
Single reset output
– Active low or active high
– Push-pull or open drain with optional pull-
Fixed Smart Reset™ input logic voltage levels
Operating temperature: –40 °C to +85 °C
UDFN6 package: 1.6 mm x 1.3 mm
ECOPACK
Free)
fixed or minimum pulse width guaranteed
duration (t
up resistor
®
2 (RoHS compliant, Halogen-
REC
), factory-programmed
SRC
) from
Doc ID 022335 Rev 3
Applications
Mobile phones, smartphones, PDAs
e-books
MP3 players
Games
Portable navigation devices
Any application that requires delayed reset
push-button(s) response for improved system
stability.
UDFN6 1.6 mm x 1.3 mm
6-pin Smart Reset™
Datasheet
STM6524
production data
www.st.com
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Related parts for STM6524AHARDL6F

STM6524AHARDL6F Summary of contents

Page 1

Features ■ Operating voltage 1. 5.5 V ■ Low supply current 1.5 µA ■ Integrated test mode ■ Dual Smart Reset™ push-button inputs with fixed extended reset setup delay (t 0 0.5 s ...

Page 2

Contents Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

STM6524 List of tables Table 1. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

List of figures List of figures Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 5

STM6524 1 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 (t ensures a safe reset and ...

Page 6

Description Figure 1. Logic diagram Figure 2. Pin connections (top view) 6/24 Doc ID 022335 Rev 3 STM6524 ...

Page 7

STM6524 Table 1. Signal names Pin Name Type 1 V Supply ground Ground SS 2 SR1 Input Secondary push-button Smart Reset™ input. Active low. Optional pull-up resistor. Reset output 3 RST Output (open drain with optional pull-up resistor, active low) ...

Page 8

Pin descriptions 2 Pin descriptions 2.1 Power supply (V This pin is used to provide power to the Smart Reset™ device. A 0.1 µF ceramic decoupling capacitor is recommended to be connected between the V STM6524 device as possible. 2.2 ...

Page 9

STM6524 3 Typical application diagram Figure 4. Single-button Smart Reset™ typical hookup 1. External pull-up resistor requested if the reset output (RST) is open drain type without internal pull-up. 2. External pull-up resistor requested if the Smart Reset™ inputs (SR0 ...

Page 10

Typical application diagram Figure 5. Dual-button Smart Reset™ typical hookup 1. External pull-up resistor requested if the reset output (RST) is open drain type without internal pull-up. 2. External pull-up resistor requested if the Smart Reset™ inputs (SR0 and SR1) ...

Page 11

STM6524 4 Timing waveforms Figure 6. Option without t Figure 7. Option with t REC REC Doc ID 022335 Rev 3 Timing waveforms 11/24 ...

Page 12

Timing waveforms Figure 8. Undervoltage condition 1. If undervoltage occurs (V drops below 1.575 V typ.) while reset output is active, the reset output is released and goes CC inactive. 12/24 Doc ID 022335 Rev 3 STM6524 ...

Page 13

STM6524 5 Typical operating characteristics Figure 9. Supply current (I Figure 10. Smart Reset™ delay (t Typical operating characteristics ) vs. temperature ( vs. temperature (T SRC Doc ID 022335 Rev 7.5 ...

Page 14

Typical operating characteristics Figure 11. Test mode entry voltage (V Figure 12. Initial test mode time (t 14/24 ) vs. temperature (T TEST ) vs. temperature (T SRC-INI Doc ID 022335 Rev 3 STM6524 ) ...

Page 15

... These are stress ratings only and operation of the device at these or any other conditions above those indicated in measurement conditions rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics™ SURE program and other relevant quality documents. Table 2. Absolute maximum ratings Symbol ...

Page 16

DC and AC parameters 7 DC and AC parameters This section summarizes the operating measurement conditions, and the DC and AC characteristics of the device. The parameters follow, are derived from tests performed under the measurement conditions summarized in Table ...

Page 17

STM6524 Table 4. DC and AC characteristic Symbol Parameter (3) V Supply voltage CC Supply current (inputs in I their inactive state SRC counter is not running) V Reset output voltage low OL Reset output voltage high V ...

Page 18

Package information 8 Package information In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ...

Page 19

STM6524 Table 5. Mechanical data for UDFN6 1.6 x 1.3 x 0.55 mm, 0.40 mm pitch Symbol Figure 14. Footprint recommendation for UDFN6 1.6 x 1.3 x 0.55 mm, 0.40 mm pitch ...

Page 20

Package information Figure 15. Carrier tape for UDFN6 1.6 x 1 Measured from centreline of sprocket hole to centreline of pocket. 2. Cumulative tolerance of 10 sprocket holes is ± 0.20. 3. Measured from centreline of ...

Page 21

STM6524 9 Part numbering Table 6. Ordering information scheme Example: Device type STM6524 Reset (V monitoring threshold) voltage monitoring feature CC Smart Reset™ set up delay ( factory programmable ...

Page 22

... Package marking information 10 Package marking information Table 7. Package marking Part number STM6524AHARDL6F STM6524ALABDL6F STM6524ALARDL6F STM6524APARDL6F STM6524AUABDL6F STM6524AUARDL6F active low open drain active low push-button controlled reset pulse width. REC Figure 17. Package marking (top view) 22/24 Smart Reset™ Output ...

Page 23

STM6524 11 Revision history Table 8. Document revision history Date 07-Oct-2011 13-Jun-2012 31-Aug-2012 Revision 1 Initial release. Updated Features, Section : Test 2 minor text corrections throughout document. Updated Table 7 (added “(ms)” STM6524ALABDL6F and STM6524AUABDL6F devices). ...

Page 24

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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