What the TLC7701QDR is and where it fits
The Texas Instruments TLC7701QDR is a simple reset / power-on reset voltage supervisor in an 8-SOIC package. It monitors a single supply rail against a 1.1V threshold and asserts a reset output — configurable as active-high or active-low — via a push-pull totem-pole stage. The 1.1ms minimum reset timeout holds the system in reset long enough for the monitored rail to stabilise after power-up or a brown-out event. The TLC7701QDR operates from -40°C to 125°C.
1.1V threshold — what it means for your rail selection
The 1.1V threshold is the voltage at which the supervisor asserts reset on the monitored rail.
Active-high and active-low reset on one pin
The TLC7701QDR gives you both active-high and active-low reset outputs from a single push-pull stage — no external pull-up resistor needed. That simplifies the BOM when the downstream device expects a logic-low reset (common on most MCUs) but also lets you drive an active-high enable signal for a power sequencer or a fault latch. The push-pull output drives up to the supply rail without the weak pull-up limitation of an open-drain supervisor.
Active lifecycle — no LTB scramble
The TLC7701QDR carries an active lifecycle status. That means no last-time-buy window to chase, no date-code provenance worries, and no risk of the part vanishing mid-production. It is a current-production part that can be specified into new designs with confidence. For a BOM line that needs a simple voltage supervisor with a 1.1V threshold and extended temperature range, this part is available through independent distribution and quoted to order against an RFQ.