{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD4040BPW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD4040BPW","canonicalUrl":"https://icboms.com/texas-instruments/CD4040BPW","factsUrl":"https://icboms.com/api/mcp/products/CD4040BPW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 4000B series 12-bit binary ripple counter, CD4040BPW, 12 MHz count rate, 3 V to 18 V supply, -55°C to 125°C, 16-TSSOP package, tube.","salesMarkdown":"## Asynchronous reset and its timing implications The CD4040BPW resets asynchronously — the counter clears to zero the instant the reset pin goes high, regardless of the clock state. This means the reset is not synchronized to the clock edge, so in a system where the counter must be cleared at a precise clock phase, an external synchronizer is required to avoid metastability at the reset release. The count advances on the negative (falling) edge of the clock input. If the driving signal is positive-edge-aligned, consider inverting the clock before feeding it to this device. Housed in a 16-lead TSSOP (4.40 mm body width), the CD4040BPW requires a surface-mount footprint with 0.65 mm pitch. The narrow pitch limits manual rework; a hot-air station or reflow oven is recommended for soldering. Supplied in tube packaging — not tape-and-reel — so it is suited for low-to-medium volume assembly where pick-and-place feeders expect cut-tape or tube loading.","metaTitle":"Texas Instruments CD4040BPW 12-Bit Binary Counter, 12 MHz","metaDescription":"Texas Instruments CD4040BPW 12-bit binary ripple counter in 16-TSSOP. 12 MHz count rate, 3-18 V supply, -55 to 125 °C. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"4000B","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Reset":"Asynchronous","Series":"4000B","Package":"Tube","Direction":"Up","Count Rate":"12 MHz","Logic Type":"Binary Counter","Trigger Type":"Negative Edge","Mounting Type":"Surface Mount","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3 V ~ 18 V","Number of Elements":"1","Operating Temperature":"-55°C ~ 125°C","Supplier Device Package":"16-TSSOP","Number of Bits per Element":"12"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.07","priceTiers":[{"qty":1,"price":"$1.07000","currency":"USD"},{"qty":10,"price":"$0.95400","currency":"USD"},{"qty":25,"price":"$0.90520","currency":"USD"},{"qty":100,"price":"$0.74360","currency":"USD"},{"qty":250,"price":"$0.69508","currency":"USD"},{"qty":500,"price":"$0.61428","currency":"USD"},{"qty":1000,"price":"$0.48495","currency":"USD"},{"qty":2500,"price":"$0.45750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/af97b7bf16d53a8e3d7e43ed29d1369a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CD4040BPW/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy CD4040BPW and how do I get a price?","answer":"The CD4040BPW is sourced through independent and authorized distribution. Submit an RFQ — pricing and lead time are confirmed at quote time based on your BOM quantity and delivery window."},{"question":"What is CD4040BPW's listed reset type?","answer":"The reset is asynchronous — the counter clears immediately when the reset pin is asserted, independent of the clock state."},{"question":"What compliance documentation does Texas Instruments provide for CD4040BPW?","answer":"The part is ROHS3 compliant. No REACH, UL, or IEC certification is listed in the available records."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD4040BPW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD4040BPW when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}