STM65xx Smart Reset ICs

            STM65xx Smart Reset ICs 
                    STMicroelectronics' dual pushbutton Smart Reset IC for manual reset applications
    

Image of STMicroelectronics' STM65xx Smart Reset™ ICs STMicroelectronics' STM65xx family of Smart Resets™ consists of low power microprocessor reset circuits designed to provide an extended input delay period on single or dual Smart Reset inputs. A reset is asserted when valid Smart Reset input conditions (combined push button press) and set up time delays are met, with the aim of ensuring a safe reset and eliminating the need for a dedicated reset button. In a typical application, the Smart Reset inputs are connected to the interrupt lines, to allow the control of both the interrupt and the hard reset function. A short push sends an interrupt to the micro, a push longer than the setup time causes a hard reset.

Features

Two Smart Reset pushbutton inputs with adjustable delay
Programmable reset setup delay (up to 15s):
- 2-state logic (STM6520)
- 3-state logic (STM6513, STM6503, and STM6504)
- External capacitor (STM6505, STM6510, and STM6522)
Low supply current (3 µA typical)
Factory-programmed thresholds to monitor VCC (except STM6520 and STM6522)
Power On reset (except STM6520 and STM6522)
Single or dual reset outputs (push-pull or open drain)
Fixed or programmable reset pulse duration (except STM6520)
TDFN-8 package: 2 mm x 2 mm x 0.75 mm, 0.5 mm pitch
Operating temperature: -40°C to +85°C

Applications

Any application with a manual reset:
- Portable (consumer, industrial, telecom, healthcare)
- White goods
- STBs
- Alarm systems
- GPS
- Portable media players
- Smartphones and PDAs