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CD74HC652EN Datasheet(PDF) 4 Page - Texas Instruments |
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CD74HC652EN Datasheet(HTML) 4 Page - Texas Instruments |
4 / 12 page 4 H H X X L X Input Output Real-Time A Data to B Bus Real-Time A Data to B Bus H H H or L X H X Stored A Data to B Bus Stored A Data to B Bus H L H or L H or L H H Output Output Stored A Data to B Bus and Stored A Data to B Bus Stored B Data to A Bus Stored B Data to A Bus NOTES: 3. To prevent excess currents in the High-Z (isolation) modes, all I/O terminals should be terminated with 10k Ω to 1MΩ resistors. 4. The data output functions may be enabled or disabled by various signals at the OEAB or OEBA 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. 5. Select Control = L: Clocks can occur simultaneously. Select Control = H: Clocks must be staggered in order to load both registers. FUNCTION TABLE INPUTS DATA I/O OPERATION OR FUNCTION OEAB OEBA CAB CBA SAB SBA A0 THRU A7 B0 THRU B7 651 652 CD74HC652, CD74HCT652 CD74HC652, CD74HCT652 |
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