{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD74HCT4046AM","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD74HCT4046AM","canonicalUrl":"https://icboms.com/texas-instruments/CD74HCT4046AM","factsUrl":"https://icboms.com/api/mcp/products/CD74HCT4046AM","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCT series CD74HCT4046AM, Phase Lock Loop (PLL) with VCO, CMOS input/output, 1 circuit, 38 MHz max, 4.5V to 5.5V supply, -55 to 125°C, 16-SOIC package.","salesMarkdown":"## Phase-locked loop with on-chip VCO — 38 MHz ceiling The Texas Instruments CD74HCT4046AM is a single-circuit phase-locked loop (PLL) with an integrated voltage-controlled oscillator (VCO), built in the 74HCT CMOS logic family. It accepts CMOS-level inputs and delivers CMOS-level outputs, running from a 4.5V to 5.5V supply rail — a strict 5V part, not a wide-voltage CMOS PLL. The VCO can lock up to 38 MHz, which covers the common clock-recovery and frequency-synthesis range for 8-bit/16-bit microcontroller systems, serial data links, and tone decoding. ## -55°C to 125°C — military temperature range The operating temperature span of -55°C to 125°C covers the military temperature range. ## 1:4 input-to-output ratio — what it means for your loop filter The CD74HCT4046AM provides a 1:4 ratio from its single-phase input to four outputs. That means the VCO output and the phase-comparator outputs are available simultaneously, which simplifies the external loop-filter design — you can monitor the VCO signal while the feedback path runs through the phase comparator. The part has no built-in divider or multiplier (Divider/Multiplier = No/No), so any frequency scaling must be done externally. For a clean lock, budget for a passive RC loop filter between the phase-comparator output and the VCO input pin. ## Active production — no LTB risk No last-time-buy math needed for a new design — this part will be around for the foreseeable production run. ## 16-SOIC narrow body — standard footprint Housed in a 16-pin SOIC package with 3.90 mm body width (narrow SOIC-16), the CD74HCT4046AM uses a common, well-understood land pattern. No thermal pad, no exposed paddle — just a straightforward surface-mount package that reflows on a standard profile. The supplier device package is also 16-SOIC, so the ordering code and the physical part match without ambiguity.","metaTitle":"CD74HCT4046AM PLL with VCO, 38 MHz, 16-SOIC","metaDescription":"CD74HCT4046AM phase-locked loop with integrated VCO. 38 MHz max, 4.5-5.5V supply, -55 to 125°C. RFQ for current pricing.","metaKeywords":null},"attributes":{"series":"74HCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"Yes","Type":"Phase Lock Loop (PLL)","Input":"CMOS","Output":"CMOS","Series":"74HCT","Package":"Tube","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","Frequency - Max":"38MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Divider/Multiplier":"No/No","Number of Circuits":"1","Ratio - Input:Output":"1:4","Operating Temperature":"-55°C ~ 125°C","Supplier Device Package":"16-SOIC","Differential - Input:Output":"No/No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.30000","currency":"USD"},{"qty":10,"price":"$1.16000","currency":"USD"},{"qty":25,"price":"$1.10120","currency":"USD"},{"qty":100,"price":"$0.90450","currency":"USD"},{"qty":250,"price":"$0.84552","currency":"USD"},{"qty":500,"price":"$0.74720","currency":"USD"},{"qty":1000,"price":"$0.58989","currency":"USD"},{"qty":2500,"price":"$0.55650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6a11f662d0c048466d8cd73d30c0d38c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How does CD74HCT4046AM compare to CD74HCT7046AE?","answer":"The CD74HCT7046AE is a through-hole (DIP) version of the same basic PLL, but with a 1:2 input-to-output ratio instead of the 1:4 ratio on the CD74HCT4046AM. Both run at 38 MHz from a 4.5V to 5.5V supply and share the -55°C to 125°C temperature range. The CD74HCT4046AM is surface-mount (16-SOIC); the 7046AE is a 16-pin DIP. If your board uses through-hole, you need the 7046AE; if your design is SMT, the 4046AM is the correct fit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD74HCT4046AM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD74HCT4046AM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:39:33.080Z","lastPublished":"2026-07-16T10:39:33.080Z","indexable":true}}