STM6522AAAADG6F STMicroelectronics, STM6522AAAADG6F Datasheet - Page 5

• Manufacturer Part Number: STM6522AAAADG6F
• Description: IC SMART RESET DUAL PB 8TDFN
• Manufacturer: STMicroelectronics
• Series: Smart Reset™r
• Type: Smart Resetr

Specifications of STM6522AAAADG6F

• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN
• Current - Supply: 2µA
• Voltage - Supply: 1.65 V ~ 5.5 V
• Applications: Mobile Phones, Cellular, Video Displays
• No. Of Supervisors / Monitors: 2
• Supply Voltage Range: 1.65V To 5.5V
• Reset Type: Active-Low
• Supply Current: 2µA
• Delay Time: 12.5s
• Digital Ic Case Style: DFN
• No. Of Pins: 8
• Operating Temperature Range: -40°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-10619-2

STM6522
1
Description
The Smart Reset™ devices provide a useful feature that ensures that inadvertent short
reset push-button closures do not cause system resets as the extended Smart Reset™
delay setup periods are implemented. Once the valid Smart Reset™ input levels and setup
delay are met, the device generates an output reset pulse for a fixed timeout period (t
The typical application hookup shows that either a single Smart Reset™ input, or both reset
inputs can be connected to the applications interrupt and control both the interrupt pin and
the hard reset functions. If the push-button is closed for a short time, the processor is only
interrupted. If the system still does not respond properly, holding the push-button(s) for the
extended setup time (t
feature helps significantly increase system stability and eliminates the need for a dedicated
reset button.
The STM65xx family of Smart Reset™ devices consists of low-current microprocessor reset
circuits targeted at applications such as MP3 players, portable navigation or mobile phones,
generally any application that requires delayed reset push-button(s) response for improved
system stability. The devices in the STM65xx Smart Reset™ family include various
combinations of useful features for the targeted applications.
The STM6522 has two combined Smart Reset™ inputs (SR0 and SR1) with delayed reset
setup time (t
Figure 1.
SRC
Logic diagram
) programmed by an external capacitor on the SRC pin.
SRC
) causes a hard reset of the processor. The Smart Reset™
Doc ID 17045 Rev 2
SRC
SR0
SR1
STM6522
V CC
V SS
RST1
RST2
Description
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).