ASM813LCPAF PULSECORE [PulseCore Semiconductor], ASM813LCPAF Datasheet

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ASM813LCPAF

Manufacturer Part Number
ASM813LCPAF
Description
Low Power ?P Supervisor Circuits
Manufacturer
PULSECORE [PulseCore Semiconductor]
Datasheet
April 2008
rev 1.6
General Description
The ASM705 / 706 / 707 / 708 and ASM813L are cost
effective CMOS supervisor circuits that monitors power-
supply and battery voltage level, and µP/µC operation.
The family offers several functional options. Each device
generates a reset signal during power-up, power-down and
during brownout conditions. A reset is generated when
the supply drops below 4.65V (ASM705/707/813L) or
4.40V (ASM706/708). For 3V power supply applications,
refer to the ASM705P/R/S/T data sheet. In addition, the
ASM705/706/813L feature a 1.6 second watchdog timer.
The ASM707/708 have both active-HIGH and active-LOW
reset outputs but no watchdog function. The ASM813L
has the same pin-out and functions as the ASM705 but has
an active-HIGH reset output. A versatile power-fail circuit
has a 1.25V threshold, useful in low battery detection and
for monitoring non-5V supplies. All devices have a manual
reset (MR) input. The watchdog timer output will trigger
a reset if connected to MR.
All devices are available in 8-pin DIP, SO and MicroSO
packages.
Typical Operating Circuit
1715 S. Bascom Ave Suite 200 Campbell, CA 95008 • Tel: 408-879-9077 • Fax: 408-879-9018
Notice: The information in this document is subject to change without notice.
Low Power µP Supervisor Circuits
PulseCore Semiconductor Corporation
www.pulsecoresemi.com
Features
Application
Precision power supply monitor
• 4.65V threshold (ASM705/707/813L)
• 4.40V threshold (ASM706/708)
Debounced manual reset input
Voltage monitor
• 1.25V threshold
• Battery monitor / Auxiliary supply monitor
Watchdog timer (ASM705/706/813L)
200ms reset pulse width
Active HIGH reset output (ASM707/708/813L)
MicroSO package
Computers and embedded controllers
Portable/Battery-operated systems
Intelligent instruments
Wireless communication systems
PDAs and hend-held equipment
Automative Systems
Safety Systems
ASM705/706/707/708
ASM813L

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ASM813LCPAF Summary of contents

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April 2008 rev 1.6 Low Power µP Supervisor Circuits General Description The ASM705 / 706 / 707 / 708 and ASM813L are cost effective CMOS supervisor circuits that monitors power- supply and battery voltage level, and µP/µC operation. The family ...

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April 2008 rev 1.6 Block Diagram Pin Configuration Low Power µP Supervisor Circuits Notice: The information in this document is subject to change without notice. ASM705/706/707/708 ASM813L ...

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April 2008 rev 1.6 Pin Description Pin Number ASM705/706 ASM707/708 DIP/ DIP/ MicroSO MicroSO ...

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April 2008 rev 1.6 Detailed Description A proper reset input enables a microprocessor / microcontroller to start in a known state. ASM70X and ASM813L assert reset to prevent code execution errors during power-up, power-down and brown-out conditions. RESET/RESET Timing The ...

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April 2008 rev 1.6 WDO will also become LOW and remain so, whenever the supply voltage falls below the device threshold CC level. WDO goes HIGH as soon the threshold. There is no minimum pulse ...

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April 2008 rev 1.6 Monitoring a Negative Voltage The Power-Fail circuitry can also monitor a negative supply rail. When the negative rail is OK, PFO will be LOW, and when the negative rail is failing (not negative enough), PFO goes ...

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April 2008 rev 1.6 Absolute Maximum Ratings Parameter Pin Terminal Voltage with Respect to Ground All other inputs Input Current at V and GND CC Output Current: All outputs Rate of Rise Plastic DIP ...

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April 2008 rev 1.6 Electrical Characteristics Unless otherwise noted, specifications are over the operating temperature range and VCC supply voltages are 2.7V to 5.5V (ASM706P,ASM708R), 3 5.5V (ASM706/708S), 3.15V to 5.5V (ASM706/708T) and 4.1V to 5.5.V (ASM706/708J) SYMBOL ...

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April 2008 rev 1.6 Package Dimensions Low Power µP Supervisor Circuits Notice: The information in this document is subject to change without notice. ASM705/706/707/708 8-Pin MicroSO ASM813L ...

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April 2008 rev 1.6 Package Dimensions (contd) Low Power µP Supervisor Circuits Notice: The information in this document is subject to change without notice. ASM705/706/707/708 Plastic DIP (8-Pin) ASM813L ...

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April 2008 rev 1.6 Package Dimensions (contd) Low Power µP Supervisor Circuits Notice: The information in this document is subject to change without notice. ASM705/706/707/708 SO (8-Pin) ASM813L ...

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April 2008 rev 1.6 Ordering Codes Part Number Reset Threshold TIN - LEAD DEVICES ASM705 Active LOW Reset, Watchdog Output And Manual RESET ASM705CPA 4.65 ASM705CSA 4.65 ASM705CUA 4.65 ASM705EPA 4.65 ASM705ESA 4.65 ASM705EUA 4.65 ASM706 Active LOW Reset, Watchdog ...

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... DIP -40°C to +85°C 8-SO ASM813L Package Marking ASM705CPAF ASM705CSAF ASM705CUAF ASM705EPAF ASM705ESAF ASM705EUAF ASM706CPAF ASM706CSAF ASM706CUAF ASM706EPAF ASM706ESAF ASM707CPAF ASM707CSAF ASM707CUAF ASM707EPAF ASM707ESAF ASM708CPAF ASM708CSAF ASM708CUAF ASM708EPAF ASM708ESAF ASM813LCPAF ASM813LCSAF ASM813LCUAF ASM813LEPAF ASM813LESAF ...

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April 2008 rev 1.6 Feature Summary ASM705 ♦ Power fail detector ♦ Brownout detection ♦ Manual RESET input ♦ Power-up/down RESET ♦ Watchdog Timer Active HIGH RESET output ♦ Active LOW RESET output RESET Threshold (V) 4.65 Low Power µP ...

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April 2008 rev 1.6 PulseCore Semiconductor Corporation 1715 S. Bascom Ave Suite 200 Campbell, CA 95008 Tel: 408-879-9077 Fax: 408-879-9018 www.pulsecoresemi.com © Copyright 2006 PulseCore Semiconductor Corporation. All rights reserved. Our logo and name are trademarks or registered trademarks of ...

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