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74VMEH22501ADGVRG4 Arkusz danych(PDF) 3 Page - Texas Instruments |
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74VMEH22501ADGVRG4 Arkusz danych(HTML) 3 Page - Texas Instruments |
3 / 30 page SN74VMEH22501A 8BIT UNIVERSAL BUS TRANSCEIVER AND TWO 1BIT BUS TRANSCEIVERS WITH SPLIT LVTTL PORT, FEEDBACK PATH, AND 3STATE OUTPUTS SCES620 – DECEMBER 2004 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 functional description The SN74VMEH22501A is a high-drive (–48/64 mA), 8-bit UBT transceiver containing D-type latches and D-type flip-flops for data-path operation in transparent, latched, or flip-flop modes. Data transmission is true logic. The device is uniquely partitioned as 8-bit UBT transceivers with two integrated 1-bit three-wire bus transceivers. functional description for two 1-bit bus transceivers The OEAB inputs control the activity of the 1B or 2B port. When OEAB is high, the B-port outputs are active. When OEAB is low, the B-port outputs are disabled. Separate 1A and 2A inputs and 1Y and 2Y outputs provide a feedback path for control and diagnostics monitoring. The OEBY inputs control the 1Y or 2Y outputs. When OEBY is low, the Y outputs are active. When OEBY is high, the Y outputs are disabled. The OEBY and OEAB inputs can be tied together to form a simple direction control where an input high yields A data to B bus and an input low yields B data to Y bus. 1-BIT BUS TRANSCEIVER FUNCTION TABLE INPUTS OUTPUT MODE OEAB OEBY OUTPUT MODE L H Z Isolation H H A data to B bus True driver L L B data to Y bus True driver H L A data to B bus, B data to Y bus True driver with feedback path |
Podobny numer części - 74VMEH22501ADGVRG4 |
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Podobny opis - 74VMEH22501ADGVRG4 |
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