T H E I N F I N I T E P O W E R O F I N N O VAT I O N
MC33164-3/MC34164-3
3V UNDERVOLTAGE SENSING CIRCUIT PRODUCTION DA...
T H E I N F I N I T E P O W E R O F I N N O VAT I O N
MC33164-3/MC34164-3
3V UNDER
VOLTAGE SENSING CIRCUIT PRODUCTION DATA SHEET
DESCRIPTION
The MC33164-3 and MC34164-3 are under
voltage 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 MC34164-3's RESET output is specified to be fully functional at VIN ≥ 1V. See Product Highlight below.
NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com.
PRODUCT HIGHLIGHT
RESET OUTPUT VS. I N P U T V O LTA G E
10
3
K E Y F E AT U R E S
s Monitors +3.3V Supplies (V = 2.7V Typ)
T
s Outputs Fully Defined At VIN ≥ 1V (See Product Highlight)
s 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
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