flstm65xx0215

Smart Reset™ ICs
Dual push-button
Enhance end-products robustness
ST’s family of Smart Reset™ ICs
provides dual-assert manualreset (push-button) inputs called
smart reset inputs that make
it possible to reliably resolve a
system hang or freeze condition.
Dual-assert manual-reset inputs
require the user to assert two
inputs simultaneously to initiate
the system reset function
(except the STM6504 which is
edge triggered). This dual-key
approach is more advanced
than conventional single pushbutton resetting because
it prevents the system from
accidentally resetting.
ST’s Smart Reset™ ICs allow the
designer to use existing buttons
to reset a device and eliminates
the need for an unsightly reset
access hole or a dedicated reset
button.
KEY FEATURES
KEY BENEFITS
• Wide operating voltage: 1.0 to 5.5 V
• Ideal for touchscreens or low-pin-count
• Low supply current: 1 to 2 μA (typ.)
• Voltage thresholds monitoring: 1.575 to
4.625 V
• Open-drain or push-pull output
• Active-high or active-low reset
• Adjustable input reset delay: 0.5 s to 12.5 s (typ.)
• Adjustable reset pulse width: 1.28 to 2240 ms
• Power-on reset
• Test mode
• Operating temperature: -40 to +85 °C
• DFN6 or DFN8 package
devices
• Smart recovery from system freeze or
product misuse
• Increases product robustness / perception
of quality
• Enhanced end user satisfaction
• Also suitable for hidden functionality (not
only reset): e.g. data sync, device pairing,
shortcuts, etc.
KEY APPLICATIONS
• Smartphones, tablets, smart watches
• Wearable / IoT devices
• Multimedia and MP3 players
• Activity trackers
• Portable navigation devices
• Any application that requires 1 or 2
delayed push buttons
www.st.com/reset
TYPICAL APPLICATION SET-UP
VCC
VCC
VCC
RST
STM65
device
RESET
CSRC
SR1
MCU/
Baseband/
PMU
LED
SR0
IO/INT/NMI
IO/INT GND
VSS
Push-button
switch
Push-button
switch
SMART RESET PRODUCT RANGE
Number of
monitored
voltages
Input reset
configuration
Input reset
delay (s)
Reset pulse
configuration
Reset pulse
width (s)
Package
(mm)
Others
STM6503
1
Three-state
[2 - 10]
Factory-programmed
[0.14 - 0.48]
DFN8 2x1x0.55
-
STM6505
2
Capacitor-adjustable
[2 - 15]
Factory-programmed
[0.21 - 0.36]
DFN8 2x1x0.55
-
STM6510
1
Capacitor-adjustable
[1 - 15]
Capacitor-adjustable
[0.01 - 2.24]
DFN8 2x1x0.55
-
STM6513
1
Three-state
[2 - 10]
Capacitor-adjustable
[0.01 - 2.24]
DFN8 2x1x0.55
1 push-pull output
STM6519
0
Factory-trimming
[0.5 - 10]
Factory-programmed
[0.001 - 0.36]
QFN6 1x1.45x0.55
Customer test mode
STM6520
0
Dual-state
[7.5 - 12.5]
-
-
DFN8 2x1x0.55
1 push-pull output
STM6522
0
Capacitor-adjustable
[2 - 15]
Factory-programmed
0.21
DFN8 2x1x0.55
-
STM6524
0
Factory-trimming
[0.5 - 10]
Factory-programmed
[0.001 - 0.36]
DFN6 1.3X1.6 X0.55
Customer test mode
Part number
© STMicroelectronics - February 2015 - Printed in United Kingdom - All rights reserved
The STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies
All other names are the property of their respective owners
Order code: FLSTM65XX0215
For more information on ST products and solutions, visit www.st.com