3.08 V threshold — the reset trip point that matters
The MAX706ATESA+ is a simple reset/power-on supervisor from Analog Devices (formerly Maxim Integrated) that monitors a single 3.3 V supply rail. Its 3.08 V threshold means the reset asserts when the supply drops to that level, giving the downstream MCU or logic a clean reset before the rail falls out of spec. The active-low push-pull output drives the processor's reset pin directly — no external pull-up resistor needed, and the totem-pole stage delivers fast, glitch-free edges.
140 ms reset timeout — why it matters for power-up sequencing
The 140 ms minimum reset timeout holds the processor in reset long enough for the main supply rail and any external oscillator to stabilize before the CPU starts executing code. This prevents boot failures from a rail that hasn't fully settled or a clock that hasn't locked. For a typical 3.3 V MCU system, that 140 ms window is comfortable margin for a ceramic-cap regulator start-up.
Industrial temperature grade — deployment fit
Rated for -40°C to 85°C ambient, this supervisor suits industrial control panels, outdoor telecom gear, and factory-floor automation where the enclosure sees temperature swings. The 8-SOIC package is a standard footprint that routes easily on a two-layer board, and the surface-mount body keeps the profile low for dense assemblies.
Lifecycle and compliance — active, no LTB pressure
The MAX706ATESA+ carries an Active lifecycle status and is ROHS3 compliant. There is no announced discontinuation or last-time-buy window, so it remains a safe choice for new designs and production replenishment without the urgency of qualifying a substitute.