CAT872: Dual Input Reset Generator

Description: CAT871, CAT872 are dual input reset generators des...
  • CAT871, CAT872 are dual input reset generators designed to restart microprocessor and microcontroller based systems when the watchdog timer or other resetting mechanisms have become disabled or failed.

    CAT871, CAT872 monitor two inputs and output an active low reset pulse after both inputs have been active (logic low) for a factory preset minimum time. The reset pulse width is 2.2 ms for CAT871 and 70 ms for CAT872. Releasing either input from its active state before the minimum timeout period resets the internal timer and both inputs must return to being active before the timer will restart with a fresh count down.

    CAT871, CAT872's open drain output is capable of sinking up to 3 mA of current and may be wire-OR'd with other open drain devices to drive a common reset input.
  • Features
  • Ultra Low Quiescent Current: 10 nA (typical) - Low Power Consumption
  • Schmitt Trigger Inputs - Low Sensitivity to Noise
  • 8 Factory Preset Delay Times from 0.5 s to 5 s to Choose From - Flexibility
  • Operate on 1.65 V to 5.5 V Power Supplies
  • Small µLLGA-6 Package: 1.45 x 1.0 x 0.4 mm
  • These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant
  • End Products
  • Mobile Phones
  • PDAs
  • MP3 Players
  • Personal Navigation Devices
  • Technical Documentation & Design Resources
    Availability and Samples
    CAT872-05ULGT3
  • Status: Obsolete
  • Compliance: Pb-free Halide free 
  • Description: Dual Input Reset Generator
  • Package Type: ULLGA-6
  • Package Case Outline: 613AF
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT872-10ULGT3
  • Status: Obsolete
  • Compliance: Pb-free Halide free 
  • Description: Dual Input Reset Generator
  • Package Type: ULLGA-6
  • Package Case Outline: 613AF
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT872-15ULGT3
  • Status: Obsolete
  • Compliance: Pb-free Halide free 
  • Description: Dual Input Reset Generator
  • Package Type: ULLGA-6
  • Package Case Outline: 613AF
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT872-20ULGT3
  • Status: Obsolete
  • Compliance: Pb-free Halide free 
  • Description: Dual Input Reset Generator
  • Package Type: ULLGA-6
  • Package Case Outline: 613AF
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT872-25ULGT3
  • Status: Obsolete
  • Compliance: Pb-free Halide free 
  • Description: Dual Input Reset Generator
  • Package Type: ULLGA-6
  • Package Case Outline: 613AF
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT872-30ULGT3
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Dual Input Reset Generator
  • Package Type: ULLGA-6
  • Package Case Outline: 613AF
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Mouser:>1K
  • ON Semiconductor:45,000
  • CAT872-40ULGT3
  • Status: Obsolete
  • Compliance: Pb-free Halide free 
  • Description: Dual Input Reset Generator
  • Package Type: ULLGA-6
  • Package Case Outline: 613AF
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT872-50ULGT3
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Dual Input Reset Generator
  • Package Type: ULLGA-6
  • Package Case Outline: 613AF
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Mouser:>1K
  • ON Semiconductor:6,208
  • Specifications
  • Voltages Monitored:
  • VCC Max (V): 5.5 
  • V(TO) Typ (V):
  • IQ Typ (µA): 0.05 
  • Reset Active State: Low 
  • Reset Timer: Yes 
  • Manual Reset: Yes 
  • Watchdog Timer: No 
  • Package Type: ULLGA-6 
  • ON Semiconductor Full Web Site