MAX800MCSE Maxim Integrated Products, MAX800MCSE Datasheet
MAX800MCSE
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MAX800MCSE Summary of contents
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... SYSTEM STATUS INDICATORS SuperCap is a registered trademark of Baknor Industries. MaxCap is a registered trademark of The Carborundum Corp. ________________________________________________________________ Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468. ____________________________Features 200ms Power-OK/Reset Timeout Period 1µ ...
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Microprocessor Supervisory Circuits ABSOLUTE MAXIMUM RATINGS Terminal Voltage (with respect to GND) V .......................................................................-0.3V to +6V CC VBATT...................................................................-0.3V to +6V All Other Inputs .....................................-0. Input Current V Peak...........................................................................1. Continuous.............................................................250mA CC VBATT Peak ..................................................................250mA VBATT Continuous ..........................................................25mA ...
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Microprocessor Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued) (MAX691A, MAX800L +4.75V to +5.5V, MAX693A, MAX800M unless otherwise noted.) PARAMETER Battery Switchover Hysteresis I = 3.2mA BATT ON Output SINK Low Voltage I = 25mA SINK Sink current BATT ...
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Microprocessor Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued) (MAX691A, MAX800L +4.75V to +5.5V, MAX693A, MAX800M unless otherwise noted.) PARAMETER POWER-FAIL COMPARATOR MAX69_AC/AE/AM, V PFI Input Threshold MAX800_C/E, V PFI Leakage Current I SINK PFO Output Voltage I SOURCE ...
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Microprocessor Supervisory Circuits __________________________________________Typical Operating Characteristics (T = +25°C, unless otherwise noted SUPPLY CURRENT CC vs. TEMPERATURE (NORMAL OPERATING MODE VBATT = 2.8V PFI ...
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Microprocessor Supervisory Circuits ____________________________Typical Operating Characteristics (continued +25°C, unless otherwise noted.) A BATTERY CURRENT vs. INPUT SUPPLY VOLTAGE 20 VBATT = 2. OUT ...
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Microprocessor Supervisory Circuits ______________________________________________________________Pin Description PIN NAME Battery-Backup Input. Connect to external battery or capacitor and charging circuit. If backup battery is not 1 VBATT used, connect to GND. Output Supply Voltage. When When V ...
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Microprocessor Supervisory Circuits 15 RESET 1k MAX691A MAX693A Figure 1. Adding an external pull-down resistor ensures – — — — — – valid with V down to GND. CC RESET and RESET are asserted ...
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Microprocessor Supervisory Circuits Table 1. Reset Pulse Width and Watchdog Timeout Selections OSC SEL OSC IN Low External Clock Input Low External Capacitor Floating Low Floating Floating EXTERNAL CLOCK MAX691A MAX693A 8 OSC SEL MAX800L MAX800M 7 OSC IN 50kHz ...
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Microprocessor Supervisory Circuits 4.65V VBATT MAX691A MAX693A MAX800L MAX800M 7 OSC IN 8 OSC SEL 11 WDI 9 PFI 1.25V * 4.4V FOR THE MAX693A/MAX800M Figure 4. MAX691A/MAX693A/MAX800L/MAX800M Block Diagram 5. ...
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Microprocessor Supervisory Circuits + VBATT MAX691A 2.8V MAX693A MAX800L MAX800M OUT 50 GND OUTPUT IMPEDANCE Figure 6. CE Propagation Delay Test Circuit Table 2. Input and Output Status in Battery-Backup Mode PIN NAME STATUS 1 ...
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Microprocessor Supervisory Circuits Battery-Backup Input The Battery-Backup Input (VBATT) is similar to the V input except the PMOS switch and parallel diode are much smaller. Accordingly, the on-resistances of the diode and the switch are each approximately 10Ω. Continuous current ...
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Microprocessor Supervisory Circuits Rp* V OUT OUT MAX691A MAX693A MAX800L MAX800M GND *MAXIMUM Rp VALUE DEPENDS ON ACTIVE-HIGH THE NUMBER OF RAMS. CE LINES MINIMUM Rp VALUE IS 1k FROM LOGIC Figure 10. Alternate CE Gating Using ...
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Microprocessor Supervisory Circuits 100 +25°C A 0.1 F CAPACITOR 80 FROM 100 1000 RESET COMPARATOR OVERDRIVE, (Reset Threshold Voltage - V Figure 13. Maximum Transient Duration without Causing ...
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Microprocessor Supervisory Circuits Maximum V The V fall time is limited by the propagation delay of CC the battery switchover comparator and should not exceed 0.03V/µs. A standard rule of thumb for filter capacitance on most regulators is on the ...
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... MAX800LCPE 0°C to +70°C MAX800LCSE 0°C to +70°C MAX800LEPE -40°C to +85°C MAX800LESE -40°C to +85°C MAX800MCPE 0°C to +70°C MAX800MCSE 0°C to +70°C MAX800MEPE -40°C to +85°C MAX800MESE -40°C to +85°C * Dice are specified +25°C, DC parameters only. A ________________________________________________________Package Information Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product ...