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MAX6315 Datasheet(PDF) 1 Page - Maxim Integrated Products

Part No. MAX6315
Description  Open-Drain SOT μP Reset Circuit
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX6315 Datasheet(HTML) 1 Page - Maxim Integrated Products

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________________General Description
The MAX6315 low-power CMOS microprocessor (µP)
supervisory circuit is designed to monitor power sup-
plies in µP and digital systems. It provides excellent cir-
cuit reliability and low cost by eliminating external
components and adjustments. The MAX6315 also pro-
vides a debounced manual reset input.
This device performs a single function: it asserts a reset
signal whenever the VCC supply voltage falls below a
preset threshold or whenever manual reset is asserted.
Reset remains asserted for an internally programmed
interval (reset timeout period) after VCC has risen above
the reset threshold or manual reset is deasserted. The
MAX6315’s open-drain RESET output can be pulled up
to a voltage higher than VCC.
The MAX6315 comes with factory-trimmed reset thresh-
old voltages in 100mV increments from 2.5V to 5V.
Preset timeout periods of 1ms, 20ms, 140ms, and
1120ms (minimum) are also available. The device
comes in a SOT143 package.
For microcontrollers (µCs) and µPs with bidirectional
reset pins, see the MAX6314 data sheet.
________________________Applications
Computers
Controllers
Intelligent Instruments
Critical µP and µC Power Monitoring
Portable/Battery-Powered Equipment
____________________________Features
o Small SOT143 Package
o Open-Drain RESET Output Can Exceed VCC
o Precision, Factory-Set VCC Reset Thresholds:
100mV Increments from 2.5V to 5V
o ±1.8% Reset Threshold Accuracy at TA = +25°C
o ±2.5% Reset Threshold Accuracy Over Temp.
o Four Reset Timeout Periods Available:
1ms, 20ms, 140ms, or 1120ms (minimum)
o Immune to Short VCC Transients
o 5µA Supply Current
o Pin-Compatible with MAX811
Open-Drain SOT µP Reset Circuit
________________________________________________________________
Maxim Integrated Products
1
1
2
4
3
VCC
MR
RESET
GND
MAX6315
SOT143
TOP VIEW
__________________Pin Configuration
MAX6315
VCC
VCC
GND
RESET
µP
RESET
MR
LASER-
TRIMMED
RESISTORS
RESET
CIRCUITRY
__________Typical Operating Circuit
19-2000; Rev 1; 1/99
Ordering and Marking Information appear at end of
data sheet.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.


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