mic809 Micrel Semiconductor, mic809 Datasheet

no-image

mic809

Manufacturer Part Number
mic809
Description
Mic809/mic810 Microprocessor Reset Circuits
Manufacturer
Micrel Semiconductor
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
mic809-5SUY
Manufacturer:
MAXIM
Quantity:
36
Part Number:
mic809-5SUY
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
mic809-5SYC3
Manufacturer:
MICREL
Quantity:
658
Part Number:
mic809JU
Manufacturer:
MICREL
Quantity:
140
Part Number:
mic809JU
Manufacturer:
MICREL
Quantity:
338
Part Number:
mic809JU
Manufacturer:
MIC
Quantity:
20 000
Part Number:
mic809JU/L/T
Manufacturer:
MICREL
Quantity:
1 717
Part Number:
mic809JUYR
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Part Number:
mic809LUY
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Part Number:
mic809LUYR
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Company:
Part Number:
mic809LY
Quantity:
10
General Description
The MIC809 and MIC810 are inexpensive microprocessor
supervisory circuits that monitor power supplies in micro-
processor based systems.
The function of these devices is to assert a reset if the power
supply drops below a designated reset threshold level. Several
different reset threshold levels are available to accommodate
3V, 3.3V or 5V powered systems.
The MIC809 has an active-low /RESET output, while the
MIC810 offers an active-high RESET output. The reset output
is guaranteed to remain asserted for a minimum of 140ms
after V
level. Having a push-pull output stage, the MIC809/810 does
not require a pull-up resistor at the output. The MIC809/810
comes in a 3-pin SOT-23 and SC-70 package.
The MIC809 is also available with a shorter reset timeout
(30ms min.). See the MIC809-5.
All support documentation can be found on Micrel’s web site
at www.micrel.com.
Typical Application
April 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
CC
has risen above the designated reset threshold
MIC809
V CC
RESET
V CC
1
Features
• Precision voltage monitor for 3V, 3.3V or 5V power sup-
• /RESET remains valid with V
• /RESET remains valid with VCC as low as 1V for SC70
• Typically less than15µA supply current for SOT-23 pack-
• 5µ typical supply current for SC70 packaged part
• 140ms minimum reset pulse widths available
• Available in 3-pin SOT-23 and SC-70 package
Applications
• Portable equipment
• Intelligent instruments
• Critical microprocessor power monitoring
• Printers/computers
• Controllers
RESET
plies
23 packaged part
packaged part
aged part
V CC
µP
Microprocessor Reset Circuits
MIC809/810
MIC809/810
CC
as low as 1.4V for SOT-
M0450-041405

Related parts for mic809

mic809 Summary of contents

Page 1

... CC level. Having a push-pull output stage, the MIC809/810 does not require a pull-up resistor at the output. The MIC809/810 comes in a 3-pin SOT-23 and SC-70 package. The MIC809 is also available with a shorter reset timeout (30ms min.). See the MIC809-5. ...

Page 2

... GND 1 GND MIC809 RESET 2 RESET 2 MIC809 3-Lead SOT23 MIC810 3-Lead SOT23 MIC809 3-Lead SC70 MIC810 3-Lead SC70 Pin Function Pin Function Pin Function Pin Function Pin Function GND GND GND GND IC Ground Pin. IC Ground Pin. IC Ground Pin. IC Ground Pin. /RESET ...

Page 3

... Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF. 4. Specifi cation for packaged product only. April 2005 (1) Operating Ratings Operating Temperature Range MIC809 ..................................................... –40°C to 85°C MIC810 ..................................................... –40°C to 85°C Power Dissipation (T Power Dissipation (T = +70°C) Power Dissipation (T (4) = 3.3V for MIC8_S/ for MIC8_R ...

Page 4

... MIC809/810 Timing Diagram /RESET Functional Diagram V CC (3) M0450-041405 RST Reset Timing Diagram + RESET GENERATOR - Reset Threshold (V) GND ( RST RESET (2) RESET (MIC810) April 2005 Micrel ...

Page 5

... SC-70 package Transients CC The MIC809/810 are relatively immune to negative-going V glitches below the reset threshold. Typically, a negative-going transient 125mV below the reset threshold with a duration of 20µs or less (SC70 package) will not cause a reset. April 2005 Interfacing to Bidirectional Reset Pins The MIC809/810 can interface with µ ...

Page 6

... MIC809/810 Package Information 2.36 (0.093) 2.28 (0.090) 3.05 (0.120) 2.67 (0.105) 0.445 (0.0175) 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 data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. ...

Related keywords