{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HC541PW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HC541PW","canonicalUrl":"https://icboms.com/texas-instruments/SN74HC541PW","factsUrl":"https://icboms.com/api/mcp/products/SN74HC541PW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74HC541PW, 74HC series octal buffer, non-inverting, 3-state outputs, 2V to 6V supply, 7.8mA output drive, -40°C to 85°C, 20-TSSOP package.","salesMarkdown":"## Octal buffer with 3-state outputs for 2V to 6V buses The Texas Instruments SN74HC541PW is an octal (8-bit) non-inverting buffer with 3-state outputs from the 74HC family. It operates across a 2V to 6V supply range, making it a direct fit for both 3.3V and 5V logic domains without level translation. The symmetric 7.8mA source and sink drive at each output handles typical CMOS fan-out to eight loads, and the 3-state control lets you isolate the bus during power sequencing or multi-master arbitration. The 20-TSSOP package (4.40mm body width) suits space-constrained boards in industrial control, motor drives, and outdoor telecom equipment where the -40°C to 85°C temperature grade is required. ## Supply voltage and logic-level compatibility The 2V to 6V supply range is the defining spec for this buffer. At 3.3V ±10% it meets the VIH/VIL thresholds of a standard 3.3V CMOS bus; at 5V ±10% it interfaces directly with 5V TTL or CMOS logic. There is no separate VCCIO pin — the single supply rail sets both the input thresholds and the output swing. If your design runs a mixed 3.3V/5V backplane, this part bridges the gap without an external translator, as long as the input signals stay within the supply rails. ## Output drive and bus isolation Each of the eight outputs can source or sink 7.8mA. That is enough to drive a standard CMOS load or a short PCB trace, but not a cable or a high-current LED — keep the per-pin current within the 7.8mA ceiling. The 3-state output enable (active-low, shared across all bits) lets you float the outputs when the buffer is not selected, which is essential for shared data buses where multiple devices drive the same lines. The non-inverting path means the output follows the input polarity, so no logic inversion surprises in the signal chain. ## Package and footprint The 20-TSSOP package (4.40mm body width, 0.65mm pin pitch) is a common footprint shared with many 20-pin logic devices from TI and other vendors. It is surface-mount only — no through-hole variant exists for this order code. The narrow body saves board area compared to a 20-SOIC, but the fine pitch means the PCB fab needs a decent solder mask registration. Standard MSL 1 handling applies out of the bag. ## Lifecycle and sourcing It is ROHS3 compliant. For a BOM line that needs a proven 74HC octal buffer, this part carries no LTB risk and is available through the independent distribution channel.","metaTitle":"SN74HC541PW 74HC Buffer, Non-Inverting, 3-State, 20-TSSOP","metaDescription":"TI SN74HC541PW 74HC octal buffer with 3-state outputs, 2V-6V supply, 7.8mA drive, -40°C to 85°C. Active production.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"74HC","Package":"Tube","Logic Type":"Buffer, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"20-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Number of Elements":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"20-TSSOP","Current - Output High, Low":"7.8mA, 7.8mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.32","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.32000","currency":"USD"},{"qty":10,"price":"$1.18200","currency":"USD"},{"qty":25,"price":"$1.12200","currency":"USD"},{"qty":100,"price":"$0.92160","currency":"USD"},{"qty":250,"price":"$0.86148","currency":"USD"},{"qty":500,"price":"$0.76130","currency":"USD"},{"qty":1000,"price":"$0.60102","currency":"USD"},{"qty":2500,"price":"$0.56700","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/cf63d6253179538c456c3baaa5a6d026.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between SN74HC541PW and SN74HCT541PW?","answer":"The SN74HCT541PW is the TTL-compatible variant of the same octal buffer. The HCT version has input thresholds that match TTL logic levels (0.8V/2.0V), while the HC version uses CMOS thresholds (30%/70% of VCC). If your upstream logic is 5V TTL, the HCT variant gives cleaner noise margins; for pure CMOS or 3.3V systems, the HC part is the standard choice."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HC541PW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HC541PW 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}}