MAX800MCPE Maxim Integrated Products, MAX800MCPE Datasheet
![IC MPU SUPERVISORY CIRCUIT 16DIP](/photos/6/57/65728/175-16-dip_sml.jpg)
MAX800MCPE
Specifications of MAX800MCPE
Related parts for MAX800MCPE
MAX800MCPE Summary of contents
Page 1
... SYSTEM STATUS INDICATORS MaxCap is a registered trademark of Kanthal Globar, Inc. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ____________________________Features o 200ms Power-OK/Reset Timeout Period o 1µA Standby Current, 30µA Operating Current ...
Page 2
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 ...
Page 3
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 ...
Page 4
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 ...
Page 5
Microprocessor Supervisory Circuits __________________________________________Typical Operating Characteristics (T = +25°C, unless otherwise noted SUPPLY CURRENT CC vs. TEMPERATURE (NORMAL OPERATING MODE VBATT = 2.8V PFI ...
Page 6
Microprocessor Supervisory Circuits ____________________________Typical Operating Characteristics (continued +25°C, unless otherwise noted.) A BATTERY CURRENT vs. INPUT SUPPLY VOLTAGE 20 VBATT = 2. OUT (V) ...
Page 7
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 ...
Page 8
Microprocessor Supervisory Circuits 15 RESET 1kΩ MAX691A MAX693A Figure 1. Adding an external pulldown resistor ensures – — — — — – valid with V down to GND. CC RESET and RESET are asserted ...
Page 9
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 ...
Page 10
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. ...
Page 11
Microprocessor Supervisory Circuits + VBATT 2.8V MAX691A MAX693A MAX800L MAX800M OUT 50Ω GND OUTPUT IMPEDANCE Figure 6. CE Propagation Delay Test Circuit Table 2. Input and Output Status in Battery-Backup Mode PIN NAME STATUS 1 ...
Page 12
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 ...
Page 13
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 1kΩ. FROM LOGIC Figure 10. Alternate CE Gating Using ...
Page 14
Microprocessor Supervisory Circuits 100 +25°C A 0.1μF CAPACITOR 80 FROM 100 1000 RESET COMPARATOR OVERDRIVE, (Reset Threshold Voltage - V CC Figure 13. Maximum Transient Duration without Causing ...
Page 15
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 ...
Page 16
... MAX800LESE -40°C to +85°C MAX800LEPE -40°C to +85°C MAX800MCUE -0°C to +70°C MAX800MCSE -0°C to +70°C MAX800MCPE -0°C to +70°C MAX800MEUE -40°C to +85°C MAX800MESE -40°C to +85°C MAX800MEPE -40°C to +85°C * Dice are specified +25°C, DC parameters only. ...
Page 17
... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 17 © 2008 Maxim Integrated Products DESCRIPTION is a registered trademark of Maxim Integrated Products, Inc ...