MC341643DM Datasheet, PDF (1/9 Pages) List of Unclassifed Manufacturers – 3V UNDERVOLTAGE SENSING CIRCUIT

THE INFINITE POWER OF INNOVATION
MC33164-3 / MC34164-3
3V UNDERVOLTAGE SENSING CIRCUIT
PRODUCTION DATA SHEET
DESCRIPTION
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 MC34164-3's RESET output is specified to
be fully functional at VIN ≥ 1V. See Product
Highlight below.
KEY FEATURES
„ Monitors +3.3V Supplies (V_T =
2.7V Typ)
„ Outputs Fully Defined At V_IN ≥ 1V
(See Product Highlight)
„ Ultra-Low Supply Current (13µA
Max.)
„ Temperature Compensated I_CC
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 / MC34164
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
APPLICATIONS
„ All Microprocessor Or
Microcontroller Designs Using
3V/3.3V Supplies
„ Simple 3V/3.3V Undervoltage
Detection
PRODUCT HIGHLIGHT
PACKAGE ORDER INFO
T_A (°C)
Plastic SOIC
DM _8-Pin
RoHS Compliant / Pb-free
Transition DC: 0440
Plastic TO-92
LP _3-Pin
RoHS Compliant / Pb-free
Transition DC: 0509
0 to 70
MC34164-3DM
MC34164-3LP
-40 to 85
MC33164-3DM
MC33164-3LP
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e.
MC34164-3DM-TR)
Copyright © 1999
Rev. 1.2a,2005-03-09
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: [phone]
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