General Description
The ASM161 and ASM162 are cost effective, low power supervisory circuits that monitor power supplies in
microprocessor, microcontroller and digital systems. If the power supply drops below the reset threshold level, a reset is asserted and remains asserted for atleast 800ms after VCC has risen above the reset threshold. An improved manual reset architecture gives the system designer additional flexibility.

KEY FEATUREs
• Edge triggered manual reset input
• single pulse output
• 49µS minimum MR disable period after reset
• CMOS/TTL logic or switch interface
• Debounced input
• Low supply current extends battery life
   6µA / 15µA typ/max at 5.5V
   4.5µA / 10µA typ/max at 3.6V
• Long reset period
• 0.8 sec minimum, 2 sec maximum
• Two reset polarity options
   ASM161: Active LOW, open-drain
   ASM162: Active HIGH
• Pinout matches the ASM811/812
• Small 4-Pin SOT-143 package
• Two temperature ranges: 0°c to 70°c and -40°c to +85°c

APPLICATIONs
• PDAs
• Appliances
• Computers and embedded controllers
• Wireless communication systems
• Battery operated and intelligent instruments
• Automotive systems
• Safety systems