MAX6845UKD0-T Maxim Integrated, MAX6845UKD0-T Datasheet
MAX6845UKD0-T
Specifications of MAX6845UKD0-T
Related parts for MAX6845UKD0-T
MAX6845UKD0-T Summary of contents
Page 1
... Basestations Servers/Workstations Selector Guide and Typical Operating Circuit appear at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ♦ Factory-Set Reset Threshold Voltages for Monitoring Supplies from 0.9V to 1.5V (MAX6841/MAX6842) ♦ ...
Page 2
Ultra-Low-Voltage µP Reset Circuits and Voltage Detectors ABSOLUTE MAXIMUM RATINGS Terminal Voltage (with respect to GND) V .......................................................................-0.3V to +6V CC MR, RESET IN, RESET (open-drain).........................-0.3V to +6V Push-Pull RESET and RESET .....................-0. Input Current (all pins) ........................................................20mA ...
Page 3
Ultra-Low-Voltage µP Reset Circuits and ELECTRICAL CHARACTERISTICS (continued +0.55V to +1.8V -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Open-Drain RESET Output Voltage Open-Drain RESET Output Leakage Current Push-Pull ...
Page 4
Ultra-Low-Voltage µP Reset Circuits and Voltage Detectors (V = 1.5V +25°C, unless otherwise noted NORMALIZED V RESET THRESHOLD CC vs. TEMPERATURE 1.015 V = 0.833V TH 1.010 1.005 1.000 0.995 0.990 0.985 -40 - ...
Page 5
Ultra-Low-Voltage µP Reset Circuits and PULLUP MANUAL RESET V REF DETECT RESET TIMEOUT PERIOD GND Detailed Description A microprocessor’s (µP’s) reset input starts the µ known state. The MAX6841–MAX6845 assert a reset dur- ing ...
Page 6
Ultra-Low-Voltage µP Reset Circuits and Voltage Detectors RESET IN decreases. The MAX6843/MAX6844/ MAX6845 assert a reset when the voltage at RESET IN falls below the RESET IN threshold (V leakage current at RESET IN allows for relatively large- value resistors ...
Page 7
... D3 D4 Table 3. Standard Versions CC DEVICE MAX6841HUKD0 MAX6841HUKD3 MAX6841FUKD0 MAX6841FUKD3 MAX6841DUKD0 MAX6841DUKD3 MAX6842HUKD0 MAX6842HUKD3 MAX6842FUKD0 MAX6842FUKD3 MAX6842DUKD0 MAX6842DUKD3 MAX6843UKD0 MAX6843UKD3 MAX6844UKD0 MAX6844UKD3 MAX6845UKD0 MAX6845UKD3 Voltage Detectors RESET THRESHOLD (V) I 1.388 H 1.313 G 1.110 F 1.050 E 0.833 D 0.788 RESET ACTIVE TIMEOUT PERIOD (ms) MIN TYP — 0. ...
Page 8
Ultra-Low-Voltage µP Reset Circuits and Voltage Detectors PART MANUAL RESET ✔ MAX6841 ✔ MAX6842 ✔ MAX6843 ✔ MAX6844 ✔ MAX6845 Typical Operating Circuit V IN 3.3V 0.9V DC/DC CONVERTER V CC MAX6842D/E RESET PUSHBUTTON MR RESET SWITCH GND 8 _______________________________________________________________________________________ ...
Page 9
... 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 _____________________ 9 © 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc ...