MAX792LEPE+ Maxim Integrated Products, MAX792LEPE+ Datasheet
![IC SUPERVISOR MPU 16-DIP](/photos/6/57/65728/175-16-dip_sml.jpg)
MAX792LEPE+
Specifications of MAX792LEPE+
Related parts for MAX792LEPE+
MAX792LEPE+ Summary of contents
Page 1
... Computers Controllers Intelligent Instruments Critical µP Power Monitoring V CC ________________________________________________________________ Maxim Integrated Products For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. Microprocessor and Nonvolatile Memory Supervisory Circuits ♦ Manual-Reset Input ♦ 200ms Power-OK / Reset Time Delay ♦ ...
Page 2
Microprocessor and Nonvolatile Memory Supervisory Circuits ABSOLUTE MAXIMUM RATINGS Input Voltage (with respect to GND) V .......................................................................-0.3V to +6V CC All Other Inputs.......................................-0. Input Current GND ................................................................................25mA All Other Outputs ............................................................25mA Continuous Power Dissipation (T = +70°C) A ...
Page 3
ELECTRICAL CHARACTERISTICS (continued 2.75V to 5.5V MIN MAX PARAMETER LOW-LINE COMPARATOR Low-Line Threshold Voltage (Internal Threshold Mode)—V TH Low-Line Threshold Voltage (External Programming Mode) Low-Line Hysteresis (Internal Threshold Mode) LLIN/REFOUT Leakage ...
Page 4
Microprocessor and Nonvolatile Memory Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued +2.75V to +5.5V MIN MAX PARAMETER OVERVOLTAGE COMPARATOR OVI Input Threshold V CC OVI Leakage Current I SINK OVO Output Voltage I ...
Page 5
Operating Characteristics (T = +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. TEMPERATURE 100 SWT = ALL OUTPUTS UNLOADED ...
Page 6
Microprocessor and Nonvolatile Memory Supervisory Circuits (T = +25°C, unless otherwise noted.) A INTERNAL-MODE RESET THRESHOLD vs. TEMPERATURE (NORMALIZED) 1.125 1.100 1.075 1.050 1.025 1.000 0.975 0.950 THE RESET THRESHOLD IS SHOWN 0.925 NORMALIZED TO 1, REPRESENTING ALL AVAILABLE MAX792/MAX820 ...
Page 7
Description PIN NAME Active-Low Reset Output goes low whenever V RESET 1 old programming mode, or RESET IN falls below 1.30V in external threshold programming mode. RESET remains low for 200ms typ after the threshold is exceeded on power-up. ...
Page 8
Microprocessor and Nonvolatile Memory Supervisory Circuits Detailed Description Manual-Reset Input Many µP-based products require manual-reset capabil- ity, allowing the operator to initiate a reset. The manu- al/external-reset input (MR) can connect directly to a switch without an external pull-up resistor ...
Page 9
RESET IN/ INT LLIN/ 5 REFOUT SWT 11 WDI 7 OVI Figure 1. MAX792/MAX820 Block Diagram _______________________________________________________________________________________ Microprocessor and Nonvolatile Memory Supervisory Circuits RESET COMPARATOR ...
Page 10
Microprocessor and Nonvolatile Memory Supervisory Circuits MR RESET OUT Figure 2. Manual-Reset Timing Diagram MANUAL RESET 9 * OTHER RESET * SOURCES . . . * DIODES NOT REQUIRED ON OPEN-DRAIN OUTPUTS Figure 3. Diode "OR" ...
Page 11
REGULATOR RESET IN/INT R1 MAX792 R4 MAX820 LLIN/REFOUT R2 GND LOW LINE 1 RESET R4 Figure 4c. Alternative Connection for External ...
Page 12
Microprocessor and Nonvolatile Memory Supervisory Circuits 1.6s WDI WDPO 70ns WDO Figure 7. WDI, WDO, and WDPO Timing Diagram default is 1.6s. Select alternative timeout periods by connecting an external capacitor from SWT to GND (see ...
Page 13
Chip-Enable Signal Gating The MAX792/MAX820 provide internal gating of chip- enable (CE) signals, which prevents erroneous data from corrupting CMOS RAM in the event of an under- voltage condition. The MAX792/MAX820 use a series transmission gate from ...
Page 14
Microprocessor and Nonvolatile Memory Supervisory Circuits + MAX792 MAX820 OUT GND 12 * MAXIMUM R VALUE DEPENDS ON P THE NUMBER OF RAMS. MINIMUM R VALUE IS 1kΩ P ...
Page 15
Information (continued) PART** TEMP. RANGE MAX792_EPE -40°C to +85°C MAX792_ESE -40°C to +85°C MAX792_EJE -40°C to +85°C MAX792_MJE -55°C to +125°C MAX820_CPE -0°C to +70°C MAX820_CSE -0°C to +70°C MAX820_EPE -40°C to +85°C MAX820_ESE -40°C to +85°C MAX820_EJE -40°C ...
Page 16
... 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. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products ...