ADPL63164

The ADPL63164 low-power microprocessor (μP) supervisory circuits monitor single/dual system supply voltages from 1.575V to 5V and provide maximum adjustability for reset and watchdog functions. These devices assert a reset signal whenever the V_CC supply voltage or RESET IN falls below its reset threshold or when manual reset is pulled low. The reset output remains asserted for the reset timeout period after V_CC and RESET IN rise above the reset threshold. The reset function features immunity to power-supply transients.

The ADPL63164 has a ±2% factory-trimmed reset threshold voltage in approximately 100mV increments from 1.575V to 5V and/or adjustable reset threshold voltages using external resistors.

The reset and watchdog delays are adjustable with external capacitors. The ADPL63164 contains a watchdog select input that extends the watchdog timeout period by 128x.

The ADPL63164 is available with an open-drain active-low RESET output. The ADPL63164 is available in an 8-pin SOT23 package and is fully specified over the temperature range of -40°C to +125°C.

APPLICATIONS

• Medical Equipment
• Automotive
• ntelligent Instruments
• Portable Equipment
• Battery-Powered Computers/Controllers
• Embedded Controllers
• Critical Microprocessor Monitoring
• Set Top Boxes
• Computers