Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

ADM8692 Datasheet(PDF) 1 Page - Analog Devices

Part No. ADM8692
Description  Microprocessor Supervisory Circuits
Download  20 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  AD [Analog Devices]
Homepage  http://www.analog.com
Logo 

ADM8692 Datasheet(HTML) 1 Page - Analog Devices

 
Zoom Inzoom in Zoom Outzoom out
 1 / 20 page
background image
Microprocessor
Supervisory Circuits
ADM8690/ADM8691/ADM8692/ADM8693/ADM8695
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006-2011 Analog Devices, Inc. All rights reserved.
FEATURES
Upgrade for ADM690 to ADM695, MAX690 to MAX695
Specified over temperature
Low power consumption (0.7 mW)
Precision voltage monitor
Reset assertion down to 1 V V
CC
Low switch on resistance 0.7 Ω normal, 7 Ω in backup
High current drive (100 mA)
Watchdog timer: 100 ms, 1.6 s, or adjustable
400 nA standby current
Automatic battery backup power switching
Extremely fast gating of chip enable signals (3 ns)
Voltage monitor for power fail
Available in TSSOP package
APPLICATIONS
Microprocessor systems
Computers
Controllers
Intelligent instruments
Automotive systems
PRODUCT HIGHLIGHTS
The ADM8690 and ADM8692 are available in 8-lead, PDIP
packages and provide:
1. Power-on reset output during power-up, power-down, and
brownout conditions. The RESET output remains
operational with VCC as low as 1 V.
2. Battery backup switching for CMOS RAM, CMOS
microprocessor, or other low power logic.
3. A reset pulse if the optional watchdog timer has not been
toggled within a specified time.
4. A 1.3 V threshold detector for power-fail warning, low battery
detection, or to monitor a power supply other than 5 V.
The ADM8691, ADM8693, and ADM8695 are available in 16-lead
PDIP and small outline packages (including TSSOP) and
provide three additional functions:
1. Write protection of CMOS RAM or EEPROM.
2. Adjustable reset and watchdog timeout periods.
3. Separate watchdog timeout, backup battery switchover, and
low VCC status outputs.
FUNCTIONAL BLOCK DIAGRAMS
RESET
1.3V
RESET
GENERATOR2
WATCHDOG
TRANSITION DETECTOR
(1.6s)
4.65V1
ADM8690/
ADM8692
WATCHDOG
INPUT (WDI)
POWER FAIL
INPUT (PFI)
VCC
VBATT
VOUT
POWER FAIL
OUTPUT (PFO)
1VOLTAGE DETECTOR = 4.65V (ADM8690)
4.40V (ADM8692)
2RESET PULSE WIDTH = 50ms (AD8690, ADM8692)
Figure 1. ADM8690/ADM8692
1.3V
LOW LINE
RESET
RESET
OSC IN
OSC SEL
BATT ON
ADM8691/
ADM8693/
ADM8695
4.65V1
RESET AND
WATCHDOG
TIME BASE
RESET
GENERATOR
WATCHDOG
TRANSITION DETECTOR
WATCHDOG
TIMER
POWER FAIL
INPUT (PFI)
WATCHDOG
INPUT (WDI)
CEIN
VCC
VBATT
VOUT
POWER FAIL
OUTPUT (PFO)
WATCHDOG
OUTPUT (WDO)
CEOUT
1VOLTAGE DETECTOR = 4.65V (ADM8691, ADM8695)
4.40V (ADM8693)
Figure 2. ADM8691/ADM8693/ADM8695


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn