MAX6318LHUK30CZ+T Maxim Integrated Products, MAX6318LHUK30CZ+T Datasheet
MAX6318LHUK30CZ+T
Specifications of MAX6318LHUK30CZ+T
Related parts for MAX6318LHUK30CZ+T
MAX6318LHUK30CZ+T Summary of contents
Page 1
... MAX6321HP MAX6322HP — * The MAX6318/MAX6319/MAX6321/MAX6322 feature two types of reset output on each device. ________________________________________________________________ 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. Watchdog and Manual Reset ____________________________Features ♦ ♦ Small 5-Pin SOT23 Package ♦ ...
Page 2
Supervisory Circuits with Watchdog and Manual Reset ABSOLUTE MAXIMUM RATINGS Voltage (with respect to GND) V ......................................................................-0.3V to +6V CC RESET (MAX6320/MAX6321/MAX6322 only)...... -0.3V to +6V All Other Pins.........................................-0. Input/Output Current, All Pins .............................................20mA Continuous Power ...
Page 3
Supervisory Circuits with ELECTRICAL CHARACTERISTICS (continued 2.5V to 5.5V -40°C to +125°C, unless otherwise noted. Typical values are PARAMETER SYMBOL BIDIRECTIONAL RESET OUTPUT (MAX6316M/MAX6318MH/MAX6319MH) Transitional Flip-Flop Setup Time RESET Output ...
Page 4
Supervisory Circuits with Watchdog and Manual Reset __________________________________________Typical Operating Characteristics (T = +25°C, unless otherwise noted.) A MAX6316/MAX6317/MAX6318/MAX6320/MAX6321 SUPPLY CURRENT vs. TEMPERATURE ...
Page 5
Supervisory Circuits with ______________________________________________________________Pin Description PIN MAX6316L MAX6318LH MAX6316M MAX6317H MAX6318MH MAX6320P MAX6321HP 1 — — _______________________________________________________________________________________ Watchdog and Manual Reset MAX6319LH NAME MAX6319MH MAX6322HP RESET ...
Page 6
Supervisory Circuits with Watchdog and Manual Reset 52kΩ MR (ALL EXCEPT MAX6318/MAX6321) WDI (ALL EXCEPT MAX6319/MAX6322) Figure 1. Functional Diagram _______________Detailed Description A microprocessor’s (µP) reset input starts or restarts the µ ...
Page 7
Supervisory Circuits with Bidirectional Output The MAX6316M/MAX6318MH/MAX6319MH are designed to interface with µPs that have bidirectional reset pins, such as the Motorola 68HC11. Like an open-drain output, these ...
Page 8
Supervisory Circuits with Watchdog and Manual Reset LASER- TRIMMED RESISTORS 2μs ONE SHOT ACTIVE PULLUP ENABLE COMPARATOR Figure 4. MAX6316/MAX6318MH/MAX6319MH Bidirectional Reset Output Functional Diagram 8 _______________________________________________________________________________________ V CC MAX6318MH MAX6319MH VREF RESET GENERATOR WATCHDOG ON 2μs ONE ...
Page 9
Supervisory Circuits with P-channel transistor on-resistance quickly charges stray capacitance on the reset line, allowing RESET to transition from low to high within the required two elec- tronic-clock cycles, even with several devices on the reset line. This ...
Page 10
Supervisory Circuits with Watchdog and Manual Reset RST RESET t RP WDI Figure 7. Watchdog Timing Relationship Applications Information Watchdog Input Current The WDI input is internally driven through a buffer and series resistor from ...
Page 11
Supervisory Circuits with Figure 10 shows an example of a flow diagram where the I/O driving the watchdog input is set high at the beginning of the program, set low at the end of every subroutine or loop, ...
Page 12
Supervisory Circuits with Watchdog and Manual Reset Table 1. Factory-Trimmed Reset Thresholds PART MAX63___50_ _-T MAX63___49_ _-T MAX63___48_ _-T MAX63___47_ _-T MAX63___46_ _-T MAX63___45_ _-T MAX63___44_ _-T MAX63___43_ _-T MAX63___42_ _-T MAX63___41_ _-T MAX63___40_ _-T MAX63___39_ _-T MAX63___38_ ...
Page 13
Supervisory Circuits with Table 2. Standard Versions (continued) RESET PART THRESHOLD (V) MAX6320PUK46CY-T 4.63 MAX6321HPUK46CY-T 4.63 MAX6322HPUK46C-T 4.63 Note: Thirteen standard versions are available, with a required order increment of 2500 pieces. Sample stock is generally held on ...
Page 14
... 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. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products ...