{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74ALS573CDW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74ALS573CDW","canonicalUrl":"https://icboms.com/texas-instruments/SN74ALS573CDW","factsUrl":"https://icboms.com/api/mcp/products/SN74ALS573CDW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74ALS series SN74ALS573CDW D-Type Transparent Latch, 8:8 circuit, Tri-State output, 4.5V to 5.5V supply, 2ns propagation delay, 20-SOIC surface mount package.","salesMarkdown":"## 8-bit transparent latch for bus-oriented data paths The SN74ALS573CDW is an 8-bit D-type transparent latch from TI's 74ALS family, designed for buffered data storage on a microprocessor bus or memory interface. With tri-state outputs and a 2ns propagation delay, it handles address latching and data demultiplexing in 5V systems where the bus must float during inactive cycles. ## Delay and drive — what the numbers mean for bus timing The 2ns propagation delay is the time from the latch-enable edge to valid data at the output — in a 10 MHz bus cycle (100 ns period), this leaves 98 ns for setup and hold at the receiving device, so the latch itself is rarely the timing bottleneck. The output drive is asymmetric: 2.6 mA source, 24 mA sink. The 24 mA sink current handles standard TTL loads and drives the bus capacitance on the falling edge; the 2.6 mA source is lighter, so the rising edge into a heavily loaded bus may need an external pull-up if the rise time must stay under a few nanoseconds. The commercial temperature grade (0 °C to 70 °C) limits it to indoor, conditioned environments — not suitable for automotive or outdoor enclosures without active thermal management.","metaTitle":"SN74ALS573CDW D-Type Transparent Latch, 2ns, 20-SOIC","metaDescription":"Texas Instruments SN74ALS573CDW, 74ALS series 8-bit D-type transparent latch with tri-state outputs. 2ns propagation delay, 4.5-5.5V supply, 20-SOIC.","metaKeywords":null},"attributes":{"series":"74ALS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74ALS","Circuit":"8:8","Package":"Tube","Logic Type":"D-Type Transparent Latch","Output Type":"Tri-State","Mounting Type":"Surface Mount","Package / Case":"20-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Independent Circuits":"1","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"20-SOIC","Delay Time - Propagation":"2ns","Current - Output High, Low":"2.6mA, 24mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.39","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.39000","currency":"USD"},{"qty":10,"price":"$1.24500","currency":"USD"},{"qty":25,"price":"$1.18120","currency":"USD"},{"qty":100,"price":"$0.97030","currency":"USD"},{"qty":250,"price":"$0.90704","currency":"USD"},{"qty":500,"price":"$0.80158","currency":"USD"},{"qty":1000,"price":"$0.63282","currency":"USD"},{"qty":2500,"price":"$0.59700","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b870f8ca4a4bac7ed7652e6d98189ecd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the propagation delay of the SN74ALS573CDW?","answer":"The propagation delay is 2 ns. This is the time from the latch-enable signal to valid data at the output, measured under standard test conditions."},{"question":"What compliance documentation does Texas Instruments provide for the SN74ALS573CDW?","answer":"The part is ROHS3 Compliant. Texas Instruments provides the standard RoHS certificate of compliance and material declaration for this device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74ALS573CDW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74ALS573CDW when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}