{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN54LS377WB","brand":"AMD (Xilinx)","brandSlug":"amd-xilinx","productSlug":"SN54LS377WB","canonicalUrl":"https://icboms.com/amd-xilinx/SN54LS377WB","factsUrl":"https://icboms.com/api/mcp/products/SN54LS377WB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN54LS377WB, D-Type flip-flop, 8-bit, positive-edge triggered, non-inverted outputs, master reset, 40 MHz clock, 4.5 V to 5.5 V supply, -40°C to 125°C, 20-CFlatpack surface-mount package.","salesMarkdown":"## 8-bit D-type register with master reset — military-grade bus latch The SN54LS377WB is an 8-bit D-type flip-flop with master reset, positive-edge triggered, non-inverted outputs. Clock frequency is 40 MHz. Output high is 8 mA, output low is 400 µA. ## 40 MHz clock and 27 ns propagation delay — timing margin on a 5 V bus Clock frequency is 40 MHz. Max propagation delay is 27 ns at 5 V and 15 pF. Quiescent current is 28 mA. ## 20-CFlatpack — hermetic surface-mount for harsh environments The 20-CFlatpack is a ceramic, hermetic surface-mount package. Unlike plastic SOIC or TSSOP, the ceramic body resists moisture absorption and thermal shock, making it suitable for military avionics, satellite payloads, downhole tools, and other sealed or high-vibration assemblies. The flat leads require a reflow profile compatible with ceramic — typically a slower ramp rate than plastic packages to avoid thermal stress. Board layout should follow the supplier device package footprint for the 20-CFlatpack; lead pitch is standard for this form factor.","metaTitle":"SN54LS377WB D-Type Flip-Flop, 40 MHz, 20-CFlatpack","metaDescription":"SN54LS377WB D-Type flip-flop with master reset, 40 MHz clock, 4.5-5.5 V supply, -40 to 125 °C. Active production. Sourced to order; request quote for price and availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"D-Type","Package":"Bulk","Function":"Master Reset","Output Type":"Non-Inverted","Trigger Type":"Positive Edge","Mounting Type":"Surface Mount","Package / Case":"20-CFlatpack","Clock Frequency":"40 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Number of Elements":"1","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"20-CFlatpack","Current - Quiescent (Iq)":"28 mA","Current - Output High, Low":"8mA, 400µA","Number of Bits per Element":"8","Max Propagation Delay @ V, Max CL":"27ns @ 5V, 15pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.0","stockQuantity":0,"priceTiers":[{"qty":25,"price":"$12.00000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bc273b6dc9e37df5f8cdf13042622d48.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the operating temperature range of SN54LS377WB?","answer":"The operating temperature range is -40°C to 125°C (TA). This is the military-grade temperature range, suitable for avionics, downhole, and other harsh-environment applications."},{"question":"Is SN54LS377WB RoHS compliant?","answer":"No, the SN54LS377WB is RoHS non-compliant. This is typical for ceramic military-grade packages that use lead-based solder for hermetic seal integrity."},{"question":"What is the pinout of SN54LS377WB?","answer":"The SN54LS377WB is an 8-bit D-type flip-flop in a 20-CFlatpack. Pin assignments follow the standard 54LS377 pinout: clock (pin 1), master reset (pin 13), data inputs D0–D7 (pins 3, 4, 7, 8, 13, 14, 17, 18), and non-inverted outputs Q0–Q7 (pins 2, 5, 6, 9, 12, 15, 16, 19). VCC is pin 20, GND is pin 10. Refer to the TI datasheet for the exact pin diagram."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/amd-xilinx/SN54LS377WB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/amd-xilinx/SN54LS377WB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-11T19:19:27.724Z","lastPublished":"2026-07-11T19:19:27.724Z","indexable":true}}