MAX6383XR32D3+中文资料

General DescriptionThe MAX200–MAX211/MAX213 transceivers are designed for RS-232 and V.28 communication inter-faces where ±12V supplies are not available. On-board charge pumps convert the +5V input to the ±10V need-ed for RS-232 output levels. The MAX201 and MAX209operate from +5V and +12V, and contain a +12V to -12V charge-pump voltage converter.The MAX200–MAX211/MAX213 drivers and receivers meet all EIA/TIA-232E and CCITT V.28 specifications at a data rate of 20kbps. The drivers maintain the ±5V EIA/TIA-232E output signal levels at data rates in excess of 120kbps when loaded in accordance with the EIA/TIA-232E specification.The 5µW shutdown mode of the MAX200, MAX205,MAX206, and MAX211 conserves energy in battery-powered systems. The MAX213 has an active-low shut-down and an active-high receiver enable control. Two receivers of the MAX213 are active, allowing ring indica-tor (RI) to be monitored easily using only 75µW power.The MAX211 and MAX213 are available in a 28-pin wide small-outline (SO) package and a 28-pin shrink small-outline (SSOP) package, which occupies only 40% of the area of the SO. The MAX207 is now avail-able in a 24-pin SO package and a 24-pin SSOP. The MAX203 and MAX205 use no external components,and are recommended for applications with limited circuit board space.ApplicationsComputersLaptops, Palmtops, Notebooks Battery-Powered Equipment Hand-Held Equipment Next-Generation Device Features ♦For Low-Cost Applications:MAX221E: ±15kV ESD-Protected, +5V, 1µA, Single RS-232 Transceiver with AutoShutdown™♦For Low-Voltage and Space-Constrained Applications:MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E: ±15kV ESD-Protected, Down to 10nA,+3.0V to +5.5V, Up to 1Mbps, True RS-232Transceivers (MAX3246E Available in UCSP™Package)♦For Space-Constrained Applications:MAX3228E/MAX3229E: ±15kV ESD-Protected,+2.5V to +5.5V, RS-232 Transceivers in UCSP ♦For Low-Voltage or Data Cable Applications:MAX3380E/MAX3381E: +2.35V TO +5.5V, 1µA,2Tx/2Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins ♦For Low-Power Applications:MAX3224E–MAX3227E/MAX3244E/MAX3245E:±15kV ESD-Protected, 1µA, 1Mbps, +3.0V to+5.5V, RS-232 Transceivers with AutoShutdown Plus™MAX200–MAX211/MAX213+5V , RS-232 Transceivers with 0.1µF External Capacitors ________________________________________________________________Maxim Integrated Products 119-0065; Rev 6; 10/03For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .Ordering Information appears at end of data sheetAutoShutdown, AutoShutdown Plus, and UCSP are trademarks of Maxim Integrated Products, Inc.MAX200–MAX211/MAX213+5V , RS-232 Transceiverswith 0.1µF External Capacitors______________________________________________________________________________________19Ordering Information*Contact factory for dice specifications.M A X 200–M A X 211/M A X 213+5V , RS-232 Transceiverswith 0.1µF External Capacitors Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.20____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2003 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.Package Information(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)。

General DescriptionThe MAX6800/MAX6801/MAX6802 microprocessor (µP)supervisory circuits monitor the power supplies in 2.85V to 5.0V µP and digital systems. They increase circuit reliability and reduce cost by eliminating external com-ponents and adjustments.These devices perform a single function—they assert a reset signal whenever the V CC supply voltage declines below a preset threshold, keeping it asserted for a preset timeout period after V CC has risen above the reset threshold. The only difference among the three devices is their output. The MAX6801 (push/pull) and MAX6802(open-drain) have an active-low RESET output, while the MAX6800 (push/pull) has an active-high RESET output.The MAX6800/MAX6801 are guaranteed to be in the cor-rect state for V CC down to 0.7V. The MAX6802 is guaran-teed to be in the correct state for V CC down to 1.0V.The reset comparator in these ICs is designed to ignore fast transients on V CC . Reset thresholds are factory-trimmable between 2.63V and 4.80V, in approximately 100mV increments. These devices are available with a 1ms (min), 20ms (min), or 100ms (min) reset pulse width. Ideal for space-critical applications, the MAX6800/MAX6801/MAX6802 come packaged in a 3-pin SOT23. For a lower threshold voltage version, see the MAX6332/MAX6333/MAX6334.ApplicationsComputers ControllersIntelligent InstrumentsCritical µP/µC Power Monitoring Portable/Battery-Powered Equipment AutomotiveFeatureso Ultra-Low 0.7V Operating Supply Voltageo Low 4.0µA Supply Currento Precision Monitoring of 2.85V to 5.0V Power-Supply Voltages o Reset Thresholds Available from 2.63V to 4.80V,in Approximately 100mV Increments o Fully Specified over Temperatureo Three Power-On Reset Timeout Periods Available (1ms min, 20ms min, 100ms min)o Low Costo Three Available Output Structures: Push/Pull RESET, Push/Pull RESET , Open-Drain RESET o Guaranteed RESET/RESET Valid to V CC = 0.7V (MAX6800/MAX6801)o Power-Supply Transient Immunity o No External Components Required o 3-Pin SOT23 Packageo Pin Compatible with MAX809/MAX810, MAX6326/MAX6327/MAX6328, and MAX6346/MAX6347/MAX6348MAX6800/MAX6801/MAX68023-Pin, Low-Power µP Reset Circuits________________________________________________________________Maxim Integrated Products 1Ordering Information*These devices are available in factory-set V CC reset thresh-olds from 2.63V to 4.80V, in approximately 0.1V increments.Choose the desired reset threshold suffix from Table 1 and insert it in the blanks following “UR” in the part number.Factory-programmed reset timeout periods are also available.Insert the number corresponding to the desired nominal reset timeout period (1 = 1ms min, 2 = 20ms min, 3 = 100ms min) in the blank following “D” in the part number. There are 15 stan-dard versions with a required order increment of 2500 pieces.S ample stock is generally held on the standard versions only (see Selector Guide). Contact the factory for availability of non-standard versions (required order increment is 10,000 pieces).All devices available in tape-and-reel only.Typical Operating Circuit and Pin Configuration appear at end of data sheet.Selector Guide appears at end of data sheet.19-1933 Rev 1; 2/01For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .M A X 6800/M A X 6801/M A X 68023-Pin, Low-Power µP Reset Circuits 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS(V CC = full range, T A = -40°C to +125°C, unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C, reset notStresses beyond 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 beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.Terminal Voltage (with respect to GND)V CC ......................................................................-0.3V to +6V Push/Pull RESET, RESET .......................-0.3V to (V CC + 0.3V)Open-Drain RESET ..............................................-0.3V to +6V Input Current (V CC ).............................................................20mA Output Current (RESET, RESET ).........................................20mAContinuous Power Dissipation (T A = +70°C)3-Pin SOT23 (derate 4mW/°C above +70°C)..............320mW Operating Temperature Range .........................-40°C to +125°C Junction Temperature......................................................+150°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°CNote 2:I SOURCE for the MAX6800 is I00nA. I SINK for the MAX6801 is 100nA. I SINK for the MAX6802 is 50µA.3-Pin, Low-Power µP Reset Circuits_______________________________________________________________________________________33.04.03.55.04.56.05.56.5-5025-255075100125SUPPLY CURRENT vs. TEMPERATURETEMPERATURE (°C)I C C (µA )0.9500.9800.9700.9601.0000.9901.0401.0301.0201.0101.050-50-25255075100125NORMALIZED RESET TIMEOUT PERIODvs. TEMPERATUREM A X 6800/01/02 t o c 02TEMPERATURE (°C)N O R M A L I Z E D R E S E T T I M E O U T P E R I O D 0302010504090807060100-50-25255075100125V CC FALLING PROPAGATION DELAYvs. TEMPERATURETEMPERATURE (°C)P R O P A G A T I O N D E L A Y (µs )10010001002004003005006000.1110MAXIMUM TRANSIENT DURATION vs. RESET COMPARATOR OVERDRIVERESET COMPARATOR OVERDRIVE (mV)M A X I M U M T R A N S I E N T D U R A T I O N (µs )10075502501.02.01.52.53.0RESET (V OH )vs. SUPPLY VOLTAGEV CC (V)O U T P U T V O L T A G E H I G H (V C C - V O H ) (m V )806040201.01.52.0 2.53.0RESET (V OL )vs. SUPPLY VOLTAGEV CC (V)O U T P U T V O L T A G E L O W (m V )Typical Operating Characteristics(Reset not asserted, T A = +25°C, unless otherwise noted.)MAX6800/MAX6801/MAX6802Pin DescriptionM A X 6800/M A X 6801/M A X 68023-Pin, Low-Power µP Reset Circuits 4_______________________________________________________________________________________Applications InformationInterfacing to µPs with BidirectionalReset PinsSince the RESET output on the MAX6802 is open-drain,this device interfaces easily with µPs that have bidirec-tional reset pins, such as the Motorola 68HC11.Connecting the µP supervisor ’s RESET output directly to the microcontroller ’s (µC ’s) RESET pin with a single pullup resistor allows either device to assert reset (Figure 1).Negative-Going V CC TransientsIn addition to issuing a reset to the µP during power-up,power-down, and brownout conditions, these devices are relatively immune to short-duration, negative-going V CCtransients (glitches). The Typical Operating Characteristics show the Maximum Transient Duration vs. Reset Comparator Overdrive graph. The graph shows the maxi-mum pulse width that a negative-going V CC transient may typically have without issuing a reset signal. As the ampli-tude of the transient increases, the maximum allowable pulse width decreases.Figure 1. Interfacing to µPs with Bidirectional Reset PinsFigure 2. Ensuring Reset Valid Down to V CC = 0Typical Operating Circuit3-Pin, Low-Power µP Reset Circuits_______________________________________________________________________________________5Table 1. Factory-Trimmed Reset ThresholdsEnsuring a Valid Reset OutputDown to V CC = 0When V CC falls below 1V and approaches the minimum operating voltage of 0.7V, push/pull-structured reset sinking (or sourcing) capabilities decrease drastically.High-impedance CMOS-logic inputs connected to the RESET pin can drift to indeterminate voltages. This does not present a problem in most cases, since most µPs and circuitry do not operate when V CC drops below 1V. For the MAX6801 application, where RESET must be valid down to 0, adding a pulldown resistor between RESET and GND removes stray leakage cur-rents, holding RESET low (Figure 2a). The pulldown resistor value is not critical; 100k Ωis large enough notto load RESET and small enough to pull it low. For the MAX6800 application, where RESET must be valid to V CC = 0, a 100k Ωpullup resistor between RESET and V CC will hold RESET high when V CC falls below 0.7V (Figure 2b).Since the MAX6802 has an open-drain, active-low out-put, it typically uses a pullup resistor. With this device,RESET will most likely not maintain an active condition,but will drift to a non-active level due to the pullup resistor and the reduced sinking capability of the open-drain device. Therefore, this device is not recommend-ed for applications where the RESET pin is required to be valid down to V CC = 0.TRANSISTOR COUNT:505PROCESS: BiCMOSChip InformationM A X 6800/M A X 6801/M A X 68023-Pin, Low-Power µP Reset Circuits 6_______________________________________________________________________________________Selector Guide (Standard Versions *)MAX6800/MAX6801/MAX6802Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.7_____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2001 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.Package Information3-Pin, Low-Power µP Reset Circuits。

MAX6365–MAX6368
SOT23, Low-Power µP Supervisory Circuits with Battery Backup and Chip-Enable Gating
ABSOLUTE MAXIMUM RATINGS
Terminal Voltages (with respect to GND)
SOT23 Pin Configurations continued at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
Pin Configurations
TOP VIEW
RESET, RESET 1 CE IN 2 GND 3 MR 4
MAX6365
8 CE OUT 7 BATT 6 OUT 5 VCC
Features
o Low +1.2V Operating Supply Voltage (VCC or VBATT) o Precision Monitoring of +5.0V, +3.3V, +3.0V, and
VCC, BATT, OUT.......................................................-0.3V to +6V RESET (open drain), RESET (open drain) ................-0.3V to +6V BATT ON, RESET (push-pull), RESET IN,

The MAX1982/MAX1983 are low-voltage, low-dropout linear regulators with an external bias supply input. The 5V bias supply drives the gate of the internal N-channel pass transistor, making these devices ideal for applications that require low-voltage outputs from low-voltage inputs. The MAX1982 delivers 1.2V (±3%) at 300mA from an input voltage of 1.25V to 5.5V. The MAX1983 delivers an adjustable output voltage from 0.8V to 2V. The MAX1982/MAX1983 include a current-limit and thermal shutdown that protects the regulator in the event of a fault condition. Both devices are offered in a 6-pin SOT23 package and are specified over the extended (-40°C to +85°C) temperature range. o Low-Cost 1.2V, 300mA VID Supply o ±3% Output Voltage Accuracy o No Minimum Load Current Required o 1.25V to 5.5V Input Supply Voltage o 5V Input Bias Supply Voltage o Power-Good (PGOOD) Open-Drain Output with 1ms Rising Edge Propagation Delay (MAX1982) o Adjustable Output Voltage (MAX1983) o Low Supply Current (IBIAS + IIN = 165µA typ) o 5µA (max) Shutdown Supply Current o Tiny 6-Pin SOT23 Package