SP813LCN-L Datasheet, PDF (1/17 Pages) Exar Corporation – Low Power Microprocessor Supervisory Circuits

June 2010
SP705-SP708-SP813L
Low Power Microprocessor Supervisory Circuits
Rev. 2.0.0
GENERAL DESCRIPTION
The SP705-708/813L series is a family of
microprocessor (µP) supervisory circuits that
integrate myriad components involved in
discrete solutions which monitor power-supply
and battery in mP and digital systems.
The SP705-708/813L series will significantly
improve system reliability and operational
efficiency when compared to solutions
obtained with discrete components. The
features of the SP705-708/813L series include
a watchdog timer, a µP reset, a Power Fail
Comparator, and a manual-reset input.
The SP705-708/813L series is ideal for
applications in automotive systems,
computers, controllers, and intelligent
instruments. The SP705-708/813L series is an
ideal solution for systems in which critical
monitoring of the power supply to the µP and
related digital components is demanded.
APPLICATIONS
• Processors & DSPs Based Systems
• Industrial & Medical Instruments
FEATURES
• Precision Voltage Monitor
− SP705/SP707/SP813L: 4.65V
− SP706/SP708: 4.40V
• 200ms RESET Pulse Width
• Independent Watchdog Timer
− 1.6s Timeout (SP705/SP706/SP813L)
• 60µA Maximum Supply Current
• Debounced TTL/CMOS Manual Reset
Input
• RESET Asserted Down to V_CC=1.1V
• Voltage Monitor for Power Failure or
Low Battery Warning
• 8-Pin PDIP, NSOIC and MSOP Packages
• Pin Compatible with Industry
Standards 705-708-813L Series
• Functionally Compatible to Industry
Standard 1232 Series
Part Number
SP705
SP706
SP707
SP708
SP813L
RESET Threshold
4.65V
4.40V
4.65V
4.40V
4.65V
RESET Active
Low
Low
Low and High
Low and High
High
Manual RESET
Yes
Yes
Yes
Yes
Yes
Watchdog
Yes
Yes
No
No
Yes
PFI Accuracy
4%
4%
4%
4%
4%
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. [phone] – Fax. [phone]