Analog Devices Inc./Maxim Integrated MAX701ESA

Overview

MAX701ESA from Maxim Integrated is a precision power-supply supervisory circuit for +5V microprocessor systems, providing dual active-low and active-high reset outputs with guaranteed valid state down to VCC = 1V, 4.65V reset threshold, ≥200ms reset pulse width, and debounced manual-reset input. It operates across –40°C to +85°C in 8-pin narrow-SO package and is used in industrial controllers and critical µP power monitoring.

For engineers reviewing the MAX701ESA datasheet, MAX701ESA pinout, MAX701ESA application, or MAX701ESA equivalent, this page delivers verified electrical parameters, temperature-rated package mapping, dual-reset timing behavior, manual-reset debounce implementation, and real-world substitution guidance - all specific to the MAX701ESA variant.

Technical Context

The MAX701ESA implements a comparator-based reset generator with internal 4.65V reference, monitoring VCC directly (CTL = GND). Its dual RESET/RESET outputs are synchronized and guaranteed functional for VCC ≥ 1V, with built-in hysteresis of 30mV minimum and a fixed 200–500ms reset pulse duration after power-up or brownout recovery.

It features a debounced MR input with 0.7V threshold and –5µA to –30µA pullup current, enabling reliable pushbutton reset without external RC filtering. The device draws only 100–200µA quiescent current and supports VCC up to +15.5V, making it suitable for robust industrial supply monitoring where low power and voltage margin are critical.

Key Specifications

Pinout & Package

MAX701ESA is housed in an 8-pin narrow-SO (SOIC) package, 3.9mm wide, RoHS-compliant, with gull-wing leads and 1.27mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar power-supply supervisory applications.

Compared with MAX701ESA, MAX692ESA offers identical temperature and threshold specs but omits the active-high output, while TPS3808G18DBVR trades dual outputs and MR for adjustability and size - making MAX701ESA optimal where deterministic dual-signal reset and hardware-debounced manual control are mandatory.

Availability

MAX701ESA is available at Aetrix Electronics and suitable for industrial controllers, critical µP power monitoring, and intelligent instruments requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX701ESA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for industrial, communications, and computing applications, emphasizing reliability, integration, and low-power operation.

The MAX700/MAX701/MAX702 family was engineered specifically for robust, low-component-count power supervision in +5V microprocessor systems - delivering guaranteed reset behavior, manual reset debouncing, and extended-temperature operation without external tuning.

FAQ

What is the reset threshold voltage for MAX701ESA?

The MAX701ESA has a factory-trimmed reset threshold of 4.65V, with a guaranteed range of 4.50V to 4.75V across its full operating temperature range of –40°C to +85°C. This value applies to both power-up and power-down conditions, and is optimized for stable operation in +5V digital systems without external calibration. The MAX701ESA uses internal reference circuitry to maintain accuracy independent of supply variations.

Does MAX701ESA provide both active-low and active-high reset outputs?

Yes, the MAX701ESA provides two synchronized reset outputs: an open-drain active-low RESET and a push-pull active-high RESET. Both outputs are asserted simultaneously when VCC falls below 4.65V or when the manual reset (MR) pin is pulled low. The MAX701ESA's dual-output architecture eliminates the need for external inverters in systems requiring either polarity, simplifying interface design with diverse µP and FPGA reset inputs.

What is the minimum VCC voltage at which MAX701ESA guarantees correct reset output state?

The MAX701ESA guarantees correct RESET/RESET output logic states for VCC voltages as low as +1.0V - confirmed across –40°C to +85°C. This ensures deterministic reset behavior during deep brownout events, such as battery depletion or capacitor discharge, preventing premature release of the microprocessor before power stabilization. The specification is validated per Figure 4 in the official datasheet.

Is the manual reset input on MAX701ESA debounced internally?

Yes, the MR input on MAX701ESA includes hardware debounce circuitry that filters mechanical switch bounce without requiring external RC components. It features a 0.7V logic threshold and internal 5µA pullup current, allowing direct connection to momentary pushbuttons. This internal debounce ensures clean, glitch-free reset assertion and is fully characterized across temperature and supply voltage ranges.

What package type and RoHS status does MAX701ESA use?

The MAX701ESA is supplied in an 8-pin narrow-SO (SOIC) package, 3.9mm wide, with 1.27mm lead pitch and gull-wing terminations. It is RoHS-compliant and lead(Pb)-free, indicated by the "+" suffix in ordering codes (e.g., MAX701ESA+). The land pattern matches Maxim's outline 21-0041, and the device supports standard reflow soldering profiles per JEDEC J-STD-020.