{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD74HC151E","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD74HC151E","canonicalUrl":"https://icboms.com/texas-instruments/CD74HC151E","factsUrl":"https://icboms.com/api/mcp/products/CD74HC151E","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments CD74HC151E, 74HC series CMOS multiplexer, 1 x 8:1 circuit, single supply 2V to 6V, -55°C to 125°C operating temperature, 16-DIP (0.300\", 7.62mm) through-hole package, 5.2mA output drive.","salesMarkdown":"It selects one of eight data sources (D0 through D7) based on a 3-bit binary address (A, B, C) and presents it at the Y output, with a complementary W output available. The 1 x 8:1 circuit means one multiplexer per package, no independent sub-circuits to manage. This is the part you reach for when you need to route one of several digital or analog signals to a single ADC input, a microcontroller pin, or a data bus — classic board-level signal routing without the footprint of a larger crosspoint switch. The 5.2mA output drive at both high and low states is typical for 74HC, enough to drive a single CMOS load or a short PCB trace but not a long backplane or a relay coil without a buffer. The 16-DIP through-hole package (0.300\" body width, 7.62mm lead spacing) is the legacy dual-inline format that sockets well and survives rework cycles. It is the same footprint as the original 74LS151 and 74HC151, making this a drop-in replacement for older board designs that need a fresh, ROHS3-compliant supply. ## Supply voltage and temperature — the real selection gate The 2V to 6V supply range is wider than the 74LS family (typically 4.75V to 5.25V) and matches the 74HC standard. At 2V the propagation delay increases, but the part still switches — useful for battery-operated gear running down to 2V before the regulator drops out. At 6V you get the full speed and drive capability, but the CMOS inputs are 5V-tolerant at that rail; no level shifting needed when mixing 3.3V and 5V domains as long as the VIH/VIL thresholds are respected. If your BOM calls out a part for a sealed outdoor telecom cabinet, a military vehicle, or a satellite payload, this temperature grade alone justifies the selection. The 74HC process holds logic states across that span, but the propagation delay roughly doubles from 25°C to 125°C — budget timing margin accordingly if the data path runs near the maximum frequency. ## Package and mounting — through-hole for socketed or rework-heavy builds The 16-DIP (0.300\" body, 7.62mm lead pitch) is a through-hole package that inserts into a standard 0.1\" grid breadboard, a DIP socket, or solders directly into plated through-holes. It is the same footprint as the 74LS151 and 74HC151 from other vendors, so a board laid out for a legacy multiplexer can take this part without a layout change. The through-hole format is preferred in high-reliability or high-vibration environments where a socketed IC is easier to replace than a reworked SMD part, and it survives hand-soldering and rework cycles that would stress a fine-pitch SOIC. No exposed pad, no thermal vias needed — the package dissipates through the leads and the body. The ROHS3 compliance (lead-free, no exemptions) covers EU and global regulatory requirements for current builds. Because the part is active and widely used, it is stocked across multiple independent distribution channels.","metaTitle":"CD74HC151E 74HC Multiplexer, 1 x 8:1, 16-DIP, -55°C to 125°C","metaDescription":"CD74HC151E 74HC CMOS 8-input multiplexer. 1 x 8:1 circuit, 2V-6V supply, -55°C to 125°C range. 16-DIP through-hole. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Type":"Multiplexer","Series":"74HC","Circuit":"1 x 8:1","Package":"Tube","Mounting Type":"Through Hole","Package / Case":"16-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Independent Circuits":"1","Operating Temperature":"-55°C ~ 125°C","Voltage Supply Source":"Single Supply","Supplier Device Package":"16-PDIP","Current - Output High, Low":"5.2mA, 5.2mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.78","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.78000","currency":"USD"},{"qty":10,"price":"$0.68600","currency":"USD"},{"qty":25,"price":"$0.64400","currency":"USD"},{"qty":100,"price":"$0.52560","currency":"USD"},{"qty":250,"price":"$0.48824","currency":"USD"},{"qty":500,"price":"$0.41552","currency":"USD"},{"qty":1000,"price":"$0.33242","currency":"USD"},{"qty":2500,"price":"$0.30125","currency":"USD"},{"qty":5000,"price":"$0.29400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/239c6f295a5d8299f5f6734c0cb33a70.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between CD74HC151E and CD74HCT151E?","answer":"The CD74HCT151E is the TTL-compatible version of the same multiplexer. It operates from 4.5V to 5.5V and has TTL-level input thresholds (0.8V low, 2.0V high), making it a direct drop-in for 5V TTL logic systems. The CD74HC151E has CMOS-level thresholds (typically 30% and 70% of VCC) and a wider 2V to 6V supply range. If your system uses 3.3V logic or needs the wider supply range, the HC variant is the right choice. For a 5V-only TTL bus, the HCT variant avoids threshold compatibility issues."},{"question":"What is the equivalent of CD74HC151E?","answer":"The CD74HC151E is a standard 74HC151 8-input multiplexer in a 16-DIP package. Functional equivalents include the NXP 74HC151D (SOIC package) and the ON Semiconductor MC74HC151ADG (SOIC-16). For a through-hole drop-in, the NTE74HC151 and the original Harris CD74HC151E (now TI) are pin-compatible. The SN74LS348N is a priority encoder, not a multiplexer — it encodes 8 inputs to 3 outputs, not the same function."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD74HC151E","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD74HC151E 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}}