IMP705 IMP [IMP, Inc], IMP705 Datasheet
IMP705
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IMP705 Summary of contents
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... IMP705/706/813L feature a 1.6 second watchdog timer. The IMP707/708 have both active-HIGH and active-LOW reset outputs but no watchdog function. The IMP813L has the same pin-out and functions as the IMP705 but has an active-HIGH reset output. A versatile power-fail circuit has a 1.25V threshold, useful in checking battery levels and non-5V supplies. All devices have a manual reset (MR) input ...
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... IMP705/6/7/8, 8 IMP705/6/7/ RESET (RESET WDO PFO IMP705 IMP706 3 6 PFI MR (IMP813L) 4 ...
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... PFI Input Current PFO Output Voltage Notes: 2. RESET (IMP705/6/7/8), RESET (IMP707/8, IMP813L) 1999 IMP, Inc. © Operating Temperature Range IMP705E/706E/707E/708E/813LE . . . . . . . –40°C to 85°C + 0.3V) IMP706C/707C/708C/813LC . . . . . . . . . . . 0°C to 70°C CC Storage Temperature Range . . . . . . . . . . . . . . –65°C to 160°C Lead Temperature Soldering(10 sec 300°C Note: 1 ...
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... Not connected. Active-LOW reset output. Pulses LOW for 200ms when triggered, and stays low whenever V CC the reset threshold (IMP705: 4.65V, IMP705J: 4.00V, IMP706: 4.40V). RESET remains LOW for 200ms after V rises above the RESET threshold goes from LOW to HIGH. A watchdog timeout will not trigger RESET unless WDO is connected to MR ...
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... RESET to be generated. The IMP813L should be above 1.2V. During a CC used when an active-HIGH RESET is required. Watchdog Timer The watchdog timer available on the IMP705/706/813L monitors µP/µC activity. If activity is not detected within 1.6 seconds, the falls below the CC internal timer puts the watchdog output, WDO, into a LOW CC state ...
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... Application Information Ensuring That RESET is Valid Down to V When V falls below 1.1V, the IMP705-708 RESET output no CC longer pulls down; it becomes indeterminate. To avoid the possi- bility that stray charges build up and force RESET to the wrong state, a pull-down resistor should be connected to the RESET pin, thus draining such charges to ground and holding RESET low. The resistor value is not critical. A 100kΩ ...
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... Monitoring Voltages Other Than V The IMP705-708 can monitor voltages other than V Power Fail circuitry resistive divider is connected from the voltage to be monitored to the Power Fail input, PFI, the PFO (output) will go LOW if the divider voltage goes below its 1.25V reference. Should hysteresis be desired, connect a resistor (equal to approximately 10 times the sum of the two resistors in the divider) between the PFI and PFO pins ...
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... 0.150 H 0.228 L 0.016 D 0.189 * JEDEC Drawing MS-001BA C ** JEDEC Drawing MO-187AA *** JEDEC Drawing MS-012AA SO (8-Pin).eps 408-432-9100/www.impweb.com IMP705/6/7/8, 8 IMP705/6/7/8, 8 0.210 –––– ––––– 0.38 0.195 2.92 0.022 0.36 0.070 1.14 0.045 0.80 0.400 9.02 ––––– 0.13 0.325 7 ...
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... Tel: 800-438-3722 Fax: 408-434-0335 e-mail: info@impinc.com http://www.impweb.com The IMP logo is a registered trademark of IMP, Inc. All other company and product names are trademarks of their respective owners. IMP705/6/7/ IMP705/6/7/ © 1999 IMP, Inc. Printed in USA Publication #: 1017 Revision: A Issue Date: ...