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CY54FCT646T Datasheet(PDF) 2 Page - Texas Instruments |
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CY54FCT646T Datasheet(HTML) 2 Page - Texas Instruments |
2 / 15 page CY54FCT646T, CY74FCT646T 8-BIT REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS SCCS031A – JULY 1994 – REVISED OCTOBER 2001 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PIN DESCRIPTION NAME DESCRIPTION A Data register A inputs, data register B outputs B Data register B inputs, data register A outputs CPAB, CPBA Clock-pulse inputs SAB, SBA Output data-source-select inputs DIR, G Output-enable inputs ORDERING INFORMATION TA PACKAGE† SPEED (ns) ORDERABLE PART NUMBER TOP-SIDE MARKING QSOP – Q Tape and reel 5.4 CY74FCT646CTQCT FCT646C SOIC SO Tube 5.4 CY74FCT646CTSOC FCT646C SOIC – SO Tape and reel 5.4 CY74FCT646CTSOCT FCT646C QSOP – Q Tape and reel 6.3 CY74FCT646ATQCT FCT646A –40 °C to 85°C SOIC SO Tube 6.3 CY74FCT646ATSOC FCT646A SOIC – SO Tape and reel 6.3 CY74FCT646ATSOCT FCT646A QSOP – Q Tape and reel 9 CY74FCT646TQCT FCT646 SOIC SO Tube 9 CY74FCT646TSOC FCT646 SOIC – SO Tape and reel 9 CY74FCT646TSOCT FCT646 LCC – L Tube 6 CY54FCT646CTLMB 55 °Cto125°C CDIP – D Tube 7.7 CY54FCT646ATDMB –55 °C to 125°C LCC L Tube 7.7 CY54FCT646ATLMB LCC – L Tube 11 CY54FCT646TLMB † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE INPUTS DATA I/O‡ OPERATION G DIR CPAB CPBA SAB SBA A1–A8 B1–B8 OR FUNCTION H X H or L H or L X X Input Input Isolation H X ↑↑ X X Input Input Store A and B data L L X X X L Output Input Real-time B data to A bus L L X H or L X H Output Input Stored B data to A bus L H X X L X Input Output Real-time A data to B bus L H H or L X H X Input Output Stored A data to B bus H = High logic level, L = Low logic level, ↑ = Low-to-high transition, X = Don’t care ‡ The data output functions can be enabled or disabled by various signals at the G or DIR inputs. Data input functions always are enabled, i.e., data at the bus pins is stored on every low-to-high transition of the clock inputs. |
Similar Part No. - CY54FCT646T_14 |
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Similar Description - CY54FCT646T_14 |
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