{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX703EPA","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX703EPA","canonicalUrl":"https://icboms.com/analog-devices/MAX703EPA","factsUrl":"https://icboms.com/api/mcp/products/MAX703EPA","rawCanonicalId":null},"summary":{"shortDescription":"Maxim MAX703EPA, Battery Backup Circuit / MPU Supervisor, Active Low Reset, Push-Pull Output, 140ms Minimum Reset Timeout, 4.65V Threshold, -40°C to 85°C, 8-DIP (0.300\", 7.62mm) Through Hole Package.","salesMarkdown":"## What the MAX703EPA is and where it fits The Maxim MAX703EPA is a Battery Backup Circuit — a dedicated MPU supervisor IC that monitors a single voltage rail and asserts a reset signal when the supply drops below a precision threshold. Its primary job is to hold a microprocessor in reset during power-up, brown-out, or momentary sag, and to switch in a backup battery when the main rail collapses below the threshold. This is the supervisor that keeps volatile memory alive and the system state intact across power interruptions. The reset output is Active Low and push-pull (totem pole), so it drives the reset input of most MCUs and MPUs directly without an external pull-up resistor. The reset timeout is 140 ms minimum, which gives the power rail and oscillator time to stabilise before the processor starts executing code. The voltage threshold is 4.65 V. It monitors one voltage and triggers when the rail falls to 4.65 V or below. ## Key ratings and what they mean for your BOM The 4.65 V threshold is the decision point for the supervisor. The 140 ms minimum reset timeout is the period the part holds the reset line low after the supply rises above the threshold. The push-pull output eliminates the need for an external pull-up resistor to VCC, saving one component and one PCB trace. But it cannot be wire-ORed with another open-drain reset source — if your design has multiple reset drivers (watchdog, manual reset button), an open-drain output with a shared pull-up is the usual topology. ## Lifecycle and sourcing reality The MAX703EPA is listed as Active in production. For a BOM line that needs this exact DIP package supervisor, there is no urgency to qualify a substitute. Note that the RoHS compliance status is listed as non-compliant. If your assembly house requires RoHS-compliant material, this part will not pass incoming inspection.","metaTitle":"MAX703EPA Battery Backup Circuit, Active Low Reset","metaDescription":"Maxim MAX703EPA is an active MPU supervisor (Battery Backup Circuit) with 140ms min reset timeout, 4.65V threshold, push-pull output.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Battery Backup Circuit","Reset":"Active Low","Output":"Push-Pull, Totem Pole","Package":"Bulk","Mounting Type":"Through Hole","Reset Timeout":"140ms Minimum","Package / Case":"8-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Voltage - Threshold":"4.65V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-PDIP","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.77","stockQuantity":0,"priceTiers":[{"qty":63,"price":"$4.77000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8d263790048a044c05b0b82740eeb9fa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the reset timeout of MAX703EPA?","answer":"The reset timeout is 140 ms minimum. That is the period the reset line stays low after the monitored voltage rises above the 4.65 V threshold, giving the system time to stabilise before the processor starts."},{"question":"Is MAX703EPA active or obsolete?","answer":"The MAX703EPA is Active in production. No EOL or last-time-buy notice is in effect. The RoHS compliance is listed as non-compliant, so confirm the exact suffix if your assembly requires RoHS materials."},{"question":"What is the closest pin-compatible alternative to MAX703EPA?","answer":"The MAX703EPA is from the MAX703 family. Within the same family, the MAX703MJA (ceramic DIP, military temp) and MAX703CPA (plastic DIP, commercial temp) share the same pinout and basic function but differ in temperature range and package material. For a RoHS-compliant drop-in, look for the MAX703EPA+ (lead-free) variant. Outside the family, the MAX811 (SOT-23, shorter timeout) is a functional alternative but not pin-compatible."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX703EPA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX703EPA when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}