MIC6315_14 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – Open-Drain μP Reset Circuit

MIC6315
Open-Drain µP Reset Circuit
General Description
The MIC6315 is an inexpensive reset generator circuit that
monitors power supplies in microprocessor-based
systems.
The function of this device is to assert a reset if either
the power supply drops below a designated reset
threshold level or /MR is forced low. Several different reset
threshold levels are available to accommodate 3V, 3.3V,
or 5V powered systems.
The MIC6315 has an active low, open-drain /RESET
output. The reset output is guaranteed to remain asserted
for a minimum of either 20ms, 140ms, or 1100ms after V_CC
has risen above the designed reset threshold level. The
MIC6315 is available in a 4-pin SOT-143 package.
Datasheets and support documentation are available on
Micrel’s web site at: www.micrel.com.
Features
• Precision voltage monitor for 3V, 3.3V, or 5V power
supplies
• /RESET remains valid with V_CC as low as 1V
• 5μA supply current
• 20ms, 140ms, or 1100ms minimum reset pulse widths
available
• Manual reset input
• Available in 4-pin SOT-143 package
Applications
• Portable equipment
• Intelligent instruments
• Critical microprocessor power monitoring
• Printers/computers
• Embedded controllers
Typical Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
October 17, 2014
Revision 2.0