Maxim Integrated MAX6335US20D3 T

Description
The MAX6335/MAX6336/MAX6337 microprocessor (μP) supervisory circuits monitor power supplies in 1.8V to 3.3V μP and digital systems. They enhance circuit reliability and reduce costs by eliminating external components and adjustments. They also feature a debounced manual reset input.
These devices perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold or whenever manual reset is asserted. Reset remains asserted for a preset timeout period after VCC has risen above the reset threshold or after manual reset is deasserted. The only difference among the three devices is their output. The MAX6336 (push/pull) and MAX6337 (open-drain) have an active-low RESET output, while the MAX6335 (push/pull) has an active-high RESET output. The MAX6335/MAX6336 are guaranteed to be in the correct state for VCC down to 0.7V. The MAX6337 is guaranteed to be in the correct state for VCC down to 1.0V.
The reset comparator in these ICs is designed to ignore fast transients on VCC. Reset thresholds are factory-trimmable between 1.6V and 2.5V, in approximately 100mV increments.

Features
Ultra-low 0.7V operating supply voltage
Low 3.3μA supply current
Precision monitoring of 1.8V and 2.5V power-supply voltages
Reset thresholds available from 1.6V to 2.5V, in approximately 100mV increments
Debounced manual reset
Fully specified over temperature
Three power-on reset pulse widths available (1ms min, 20ms min, 100ms min)
Low cost
Three available output structures: Push/Pull RESET, Push/Pull RESET, Open-Drain RESET
Guaranteed RESET/RESET valid to VCC = 0.7V (MAX6335/MAX6336)
Power-supply transient immunity
No external components
4-pin SOT143 package
Pin compatible with MAX811/MAX812 and MAX6314/MAX6315

Applications
Pentium II computers
Computers
Controllers
Intelligent instruments
Critical μP/μC power monitoring
Portable/battery-powered equipment
Automotive