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CY74FCT16646CTPVCT Datasheet(PDF) 3 Page - Texas Instruments |
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CY74FCT16646CTPVCT Datasheet(HTML) 3 Page - Texas Instruments |
3 / 15 page CY74FCT16646T CY74FCT162646T 3 Function Table[1] Inputs Data I/O[2] Function OE DIR CLKAB CLKBA SAB SBA A B H H X X H or L H or L X X X X Input Input Isolation Store A and B Data L L L L X X X H or L X X L H Output Input Real Time B Data to A Bus Stored B Data to A Bus L L H H X H or L X X L H X X Input Output Real Time A Data to Bus Stored A Data to B Bus Notes: 1. H = HIGH Voltage Level. L = LOW Voltage Level. X = Don’t Care . = LOW-to-HIGH Transition 2. The data output functions may be enabled or disabled by various signals at the OE or DIR inputs. Data input functions are always enabled, i.e., data at the bus pins will be stored on every LOW-to-HIGH transition on the clock inputs. 3. Cannot transfer data to A-bus and B-bus simultaneously. BUS B BUS A DIR L OE L CLKAB X SAB X BUS B BUS A DIR H L X OE L L H CLKAB X SAB X X X SBA X X X BUS B BUS A DIR H OE L SAB L SBA X BUS A BUS A DIR L H OE L L SAB X H SBA H X Real-Time Transfer Bus B to BusA Real-Time Transfer BusA to Bus B Storage from A and/or B Transfer Stored Data to A and/or B CLKBA X CLKAB X CLKBA X SBA L CLKBA X CLKAB X Hor L CLKBA Hor L X [3] |
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