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ROHM Semiconductor BU4316G-TR — Microcontrollers & Processors (MCU / MPU / DSP)
ROHM Semiconductor

ROHM BU4316G-TR Simple Reset IC, Active-Low, 1.6V Threshold

MPNBU4316G-TR
End of Life

ROHM BU4316G-TR Simple Reset/Power-On Reset, Active-Low Push-Pull Output, 1.6V Threshold, Adjustable Timeout, -40°C to 125°C, SOT-753 (5-SSOP), Tape & Reel.

$0.59Ref. price · indicative, final on quote
BU4316G-TR datasheet
PackagingSC-74A, SOT-753
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

BU4316G-TR Technical Specifications
ParameterValue
TypeSimple Reset/Power-On Reset
Mounting typeSurface Mount
Voltage - threshold1.6V
Number of voltages monitored1
Operating temperature-40°C ~ 125°C (TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeoutAdjustable/Selectable
CaseSC-74A, SOT-753

Product details

Active-lifecycle supervisor with a 1.6V trip point

The reset timeout is adjustable or selectable via an external capacitor, giving you control over power-up sequencing.

Package and rework — SOT-753 is hand-friendly

Housed in a 5-pin SOT-753 (SC-74A), this part is small enough for tight layouts but still reworkable with a hot-air station. No exposed thermal pad to worry about, so a standard reflow profile for small-outline packages works fine.

Temperature grade — full industrial range

The 125°C ceiling is a step above many voltage detectors that stop at 105°C, giving extra margin in hot environments.

Frequently asked questions

Is BU4316G-TR compatible with 3.3V systems?

The 1.6V threshold is well below a 3.3V rail, so the BU4316G-TR monitors a 3.3V supply correctly — it will assert reset when the rail falls to 1.6V, which is typical for power-fail detection. The push-pull output drives 3.3V logic directly.

What is the reset timeout for BU4316G-TR and how is it set?

The reset timeout is adjustable or selectable, typically set with an external capacitor connected to the delay pin. The exact timeout value depends on the capacitor chosen — the datasheet provides the formula or table for selecting the capacitor value for your desired delay.

When sourcing BU4316G-TR, what's the closest functional second-source?

The BU4921G-TR is a close peer in the same ROHM family, but its reset polarity is active-high instead of active-low. If your design needs an active-low reset, the BU4316G-TR is the correct choice.