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Nisshinbo R3200 Reset Timer ICs

Nisshinbo R3200 Reset Timer ICs offer two input signals for mobile equipment that require a long interval for reset sequence. The long interval prevents unexpected resets caused by accidental key operations. The ICs feature two active low-input pins (SR0 and SR1) to generate reset signals after the output delay time. There are two versions available that offer different output delay time settings and output release methods. The R3200 offers an ultra-low supply current while the reset signal remains active or after being sent out. Nisshinbo R3200 Reset Timer ICs are available in 8-pin DFN(PLP)2020-8B or 8-pin DFN1216-8 packages.

Versions

R3200x001x
The output delay time is selectable from 7.5s or 11.25s (typical) by connecting the DSR pin to GND or VDD. A reset signal can be released by making one of the active low input pins high.

R3200xxx2x, R3200L053B, or R3200L064A
The output delay time is fixed. A reset signal will be released automatically after the output release time, or by making one of the active low input pins high, a reset signal can be released before the output release time.

Features

  • 1.65V to 5.5V (6V) operating voltage range (maximum rating)
  • 0.28μA (VDD = 5.5V) typical supply current 1 (at standby)
  • 3μA (VDD = 5.5V) typical supply current 2 (at active before reset signal output)
  • 0.45μA (VDD = 5.5V) typical supply current 3 (at active after reset signal output)
  • Typical output delay time
    • 7.5s or 11.25s (R3200x001x)
    • 7.5s (R3200x002x)
    • 10s (R3200L053B and R3200L052B) 
    • 3.0s (R3200L064A)
  • ±10% output delay time accuracy
  • Typical output release time
    • 0.234s (R3200x002x)
    • 0.313s (R3200L052B)
    • 0.078s (R3200L053B)
    • 0.1875s (R3200L064A)
  • ±10% output release time accuracy
  • Output type
    • Nch open drain (R3200xxxxA)
    • Nch open drain and CMOS (R3200xxxxB)
  • -40°C to +85°C operating temperature range
  • DFN(PLP)2020-8B and DFN1216-8 packages

Applications

  • Mobile phones and smartphones
  • Tablet devices
  • Portable games
  • Personal navigation devices

Block Diagrams

Block Diagram - Nisshinbo R3200 Reset Timer ICs
Publicado: 2020-11-20 | Actualizado: 2024-05-06