mic6315-46d4uy Micrel Semiconductor, mic6315-46d4uy Datasheet

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mic6315-46d4uy

Manufacturer Part Number
mic6315-46d4uy
Description
Mic6315 Open-drain ?p Reset Circuit
Manufacturer
Micrel Semiconductor
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MIC6315-46D4UY
Manufacturer:
MIC
Quantity:
8 500
Part Number:
MIC6315-46D4UY
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
General Description
The MIC6315 is an inexpensive reset generator circuit that
monitors power supplies in microprocessor based sys-
tems.
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
risen above the designed reset threshold level. The MIC6315
comes in a 4-pin SOT-143 package.
Typical Application
October 2005
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
MR
MIC6315
V CC
RESET
CC
has
V CC
1
Features
• Precision voltage monitor for 3V, 3.3V or 5V power sup-
• /RESET remains valid with V
• 5µA supply current
• 20ms, 140ms, or 1100ms minimum reset pulse widths
• Manual reset input
• 4-pin SOT-143 package
Applications
• Portable equipment
• Intelligent instruments
• Critical microprocessor power monitoring
• Printers/computers
• Embedded controllers
10k
plies
available
RESET
Open-Drain µP Reset Circuit
V CC
µP
MIC6315
CC
as low as 1V
M9999-102005

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mic6315-46d4uy Summary of contents

Page 1

... General Description The MIC6315 is an inexpensive reset generator circuit that monitors power supplies in microprocessor based sys- tems. 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 ...

Page 2

... M7 MIC6315-41D4UY MIC6315-44D4U NJ MIC6315-44D4UY MIC6315-46D4U NZ MIC6315-46D4UY Notes: 1. All devices available in tape and reel only. 2. Parts not yet assigned an identification code are shown as “zz”. Contact Micrel for details. Minimum order may apply. Pin Configuration Pin Description Pin Number Pin Name ...

Page 3

Absolute Maximum Ratings Terminal Voltage (V , /RESET) ........................................–0.3V to 6.0V CC (/MR) ..........................................–0. Rate of Rise (V ) .................................................. 100V/µs CC Input Current (V , /MR) ............................................ 20mA CC Output Current (/RESET) ........................................... 20mA Lead Temperature (soldering, ...

Page 4

Timing Diagram V CC /MR /RESET Functional Diagram V CC (4) MR (3) M9999-102005 RST Reset Timing Diagram + - Reset RESET Threshold (V) GENERATOR 4 t RST RESET (2) GND (1) October 2005 ...

Page 5

... For most applications, this volt- age will be the same power supply that supplies V MIC6315 possible, however, to tie this resistor to some other voltage. This will allow the MIC6315 to monitor one voltage while level-shifting the /RESET output to some other voltage ...

Page 6

Package Information 0.950 (0.0374) TYP 3.05 (0.120) 2.67 (0.105) 0.800 (0.031) TYP 0.400 (0.016) TYP 3 PLACES MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL The information furnished by Micrel in this datasheet ...

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