MIC6315
Micrel
MIC6315
Open-Drain
碌
P 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
comes in a 4-pin SOT-143 package.
Features
鈥?Precision voltage monitor for 3V, 3.3V or 5V power
supplies
鈥?/RESET remains valid with V
CC
as low as 1.4V
鈥?<15碌A(chǔ) supply current
鈥?20ms, 40ms, or 1100ms minimum reset pulse widths
available
鈥?Manual reset input
鈥?4-pin SOT-143 package
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Portable equipment
Intelligent instruments
Critical microprocessor power monitoring
Printers/computers
Embedded controllers
Typical Application
VCC
VCC
VCC
10k
MIC6315
MR
RESET
碌P
RESET
Micrel, Inc. 鈥?1849 Fortune Drive 鈥?San Jose, CA 95131 鈥?USA 鈥?tel + 1 (408) 944-0800 鈥?fax + 1 (408) 944-0970 鈥?http://www.micrel.com
July, 2004
1
M9999-071504
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