CAT811MEUSGT3中文资料
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© 2005 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 1Doc. No. 3005, Rev. RCAT811, CAT8122Doc. No. 3005, Rev. R© 2005 by Catalyst Semiconductor, Inc.Characteristics subject to change without noticeORDERING INFORMATIONPIN DESCRIPTIONSTOP MARKINGNotes1)The “YM” in the SOT-143 package marking indicates the Yearand Month of production.2)All NiPdAu devices will be marked to indicate product type andpackage. Threshold and full part numbers will be provided on box and reel labels as well as all Shipping documents.d n a s t r a P d l o h se r h T 341-T O S )1(341-T O S n S n e e r G d a e L e t t a M h s i n i F )2()1(341-T O S n e e r G d a e L u A d P i N h s i n i F )2()1(8T A C 11L M Y M A M Y H D E MY R 8T A C 11M M Y N A M Y J D J 118T A C A M Y Z M Y K C T 118T A C M Y P A M Y L D S 118T A C M Y Q A M Y M D R 118T A C M Y R A M Y N D Z 118T A C A M Y Y M Y P C L 218T A C M Y S A D M Y R E MY S M 218T A C M Y T A D M Y T J 218T A C M Y U A D M Y U T 218T A C M Y V A D M Y V S 218T A C M Y W A D M Y W R 218T A C M Y X A D M Y X Z218T A C MY I C MY Y C * NiPdAu is a Lead Finish Option on the GreenPackages only. Unless indicated with the “G ” green packages are shipped with a Sn Matte Lead Finish.CAT811, CAT8123Doc No. 3005, Rev. R© 2005 by Catalyst Semiconductor, Inc.Characteristics subject to change without noticeELECTRICAL CHARACTERISTICSV CC = Full range, T A = -40°C to +85°C unless otherwise noted. Typical values at T A = +25°C and V CC = 5 V for the L/M/J versions, V CC = 3.3 V for the T/S versions, V CC = 3 V for the R version and V CC = 2.5 V for the Z version.ABSOLUTE MAXIMUM RATINGS*Any pin with respect to ground ..........-0.3 V to +6.0 V Input Current, V CC .............................................20 mA Output Current, RESET, RESET......................20 mA Rate of Rise, V CC .............................................................100 V/µs Continuous Power DissipationDerate 4mW/°C above 70°C (SOT143)........320 mWOperating Temperature Range...........-40°C to +85°C Storage Temperature Range............-65°C to +105°C Lead Soldering Temperature (10 sec)..............300°C*COMMENTStresses above those listed under “Absolute Maximum Ratings ” may cause permanent damage to the device. These are stress ratings only,and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability.CAT811, CAT8124Doc. No. 3005, Rev. R© 2005 by Catalyst Semiconductor, Inc.Characteristics subject to change without noticeELECTRICAL CHARACTERISTICS V CC = Full range, T A = -40˚C to +85˚C unless otherwise noted. Typical values at T A = +25˚C and V CC = 5 V for L/M/J versions, V CC = 3.3 V for T/S versions, V CC = 3 V for R version and V CC = 2.5 V for Z version.(continued)Note 1: Production testing done at T A = +25˚C; limits over temperature guaranteed by design only.Note 2: RESET output for the CAT811; RESET output for the CAT812Note 3: Glitches of 100 ns or less typically will not generate a reset pulse.CAT811, CAT8125Doc No. 3005, Rev. R© 2005 by Catalyst Semiconductor, Inc.Characteristics subject to change without noticeTYPICAL OPERATING CHARACTERISTICSV CC = Full range, T A = -40˚C to +85˚C unless otherwise noted. Typical values at T A = +25˚C and V CC = 5 V for L/M/J versions, V CC =3.3 V for T/S versions, V CC = 3 V for R version and V CC = 2.5 V for Z version.SUPPLY CURRENT VS. TEMPERATURE(NO LOAD, CAT8xxR/S/T/Z)121086420-50 0 50 100 150S U P P L Y C U R R E N T (µA )TEMPERATURE (˚C)POWER-DOWN RESET DELAY VS. TEMPERATURE(CAT8xxR/S/T/Z)1412108642P O W E R -D O W N R E S E T D E L A Y (µS )TEMPERATURE (˚C)POWER-UP RESET TIMEOUTVS. TEMPERATURE260240220200180160P O W E R -U P R E S E T T I M E O U T (m S )TEMPERATURE (˚C)NORMALIZED RESET THRESHOLDVS. TEMPERATURE1.000210.99980.99960.99940.99920.9990.99880 20 40 60 80 100 120N O R M A L I Z E D T H R E S H O L DTEMPERATURE (˚C)-50 0 50 100 150-50 0 50 100 150CAT811, CAT8126Doc. No. 3005, Rev. R© 2005 by Catalyst Semiconductor, Inc.Characteristics subject to change without noticeDETAILED DESCRIPTIONSRESET TIMINGThe reset signal is asserted LOW for the CAT811 and HIGH for the CAT812 when the power supply voltage falls below the threshold trip voltage and remains asserted for at least 140ms after the power supply voltage has risen above the threshold.Figure 1. Reset Timing DiagramFigure 2. Maximum Transient Duration Without Causing a Reset Pulse vs. Reset Comparator Overdrive3025201510 50T R A N S I E N T D U R A T I O N [µs )RESET OVERDRIVE V TH - V CC [mV]1 10 100 10005V 0V5V 0V 5V0VPower Supply Voltage RESETRESETV CC TRANSIENT RESPONSEThe CAT811/812 protect µPs against brownout failure.Short duration transients of 4µsec or less and 100 mV amplitude typically do not cause a false RESET.Figure 2 shows the maximum pulse duration of negative-going V CC transients that do not cause a reset condition.As the amplitude of the transient goes further below the threshold (increasing V TH - V CC ), the maximum pulse duration decreases. In this test, the V CC starts from an initial voltage of 0.5V above the threshold and drops below it by the amplitude of the overdrive voltage (V TH - V CC ).CAT811, CAT8127Doc No. 3005, Rev. R© 2005 by Catalyst Semiconductor, Inc.Characteristics subject to change without noticeVALID RESET WITH V CC UNDER 1.0 VTo ensure that the CAT811 RESET pin is in a known state when V CC is under 1.0 V, a 100 k Ω pull-down resistor between RESET pin and GND is recommended;the value is not critical. For the CAT812, a pull-up resistor from RESET pin to V CC is needed.Figure 3. RESET Valid with V CC Under 1.0 V Figure 4. RESET Valid with V CC Under 1.1 VFigure 5. Bi-directional Reset Pin Interfacing(For example: 68HC11)BI-DIRECTIONAL RESET PIN INTERFACING The CAT811/812 can interface with µP/µC bi-directional reset pins by connecting a 4.7 k Ω resistor in series with the CAT811/812 reset output and the µP/µC bi-directional reset pin.CAT811, CAT8128Doc. No. 3005, Rev. R© 2005 by Catalyst Semiconductor, Inc.Characteristics subject to change without noticeOTHER SUPERVISORY PRODUCTS0.20GAUGE PLANEPACKAGE INFORMATION Plastic SOT143 (4-Pin)Catalyst Semiconductor, Inc.Corporate Headquarters 1250 Borregas Avenue Sunnyvale, CA 94089Phone: 408.542.1000Fax: 408.542.1200Copyrights, Trademarks and PatentsTrademarks and registered trademarks of Catalyst Semiconductor include each of the following:DPP ™AE 2 ™MiniPot ™Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products. For a complete list of patents issued to Catalyst Semiconductor contact the Company ’s corporate office at 408.542.1000.CATALYST SEMICONDUCTOR MAKES NO WARRANTY, REPRESENTATION OR GUARANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES.Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where personal injury or death may occur.Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets labeled "Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale.Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate typical semiconductor applications and may not be complete.REVISION HISTORYDate Rev.Reason10/22/03L Updated Ordering Information 12/22/2003MUpdated FeaturesReplaced power-up reset timeout vs. temperature graph with updated oneReplaced VCC Transient Response graph with updated one3/22/04N General data sheet updates3/25/2004O Updated Electrical Characteristics (Reset Active Timeout Period Max)3/25/2004P Corrected Pin Configure diagram 9/28/2004Q Minor changes 12/28/2005RUpdated FeaturesUpdated Ordering Information Updated Yop MarkingPublication #:3005Revison:RIssue date:12/28/05。
