MC33164-3LP

The MC33164-3 and MC34164-3 are undervoltage sensing circuits designed specifically for use as reset controllers in microprocessor-based systems.
They offer the designer an economical, space efficient solution for low supply voltage detection when used in combination with a single pull-up resistor. Adding one capacitor offers the functionality of a programmable delay time after power returns.
The MC33164-3 and MC34164-3 consist of a temperature stable reference comparator with hysteresis, high-current clamping diode and an open collector output stage capable of sinking more than 6mA over the full temperature range.
The MC33164-3 and MC34164-3s RESET output is specified to be fully functional at VIN ≥ 1V. See Product Highlight below.KEY
FEATURES
• Monitors +3.3V Supplies (VT = 2.7V Typ)
• Outputs Fully Defined At VIN ≥ 1V (See Product Highlight)
• Ultra-Low Supply Current (13µA Max.)
• Temperature Compensated ICC For Extremely Stable Current Consumption
• µP Reset Delay Programmable With 1 External Resistor And Capacitor
• Comparator Hysteresis Prevents Output Oscillation (60mV Typ.)
• Electrically Compatible With Motorola MC34164-3
• Pin-to-Pin Compatible With Motorola MC34064 / MC34164APPLICATIONS
• All Microprocessor Or Microcontroller Designs Using 3V/3.3V Supplies
• Simple 3V/3.3V Undervoltage Detection