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SN74GTLP1395 Fiches technique(PDF) 3 Page - Texas Instruments |
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SN74GTLP1395 Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 21 page SN74GTLP1395 TWO 1-BIT LVTTL-TO-GTLP ADJUSTABLE-EDGE-RATE BUS TRANSCEIVERS WITH SPLIT LVTTL PORT, FEEDBACK PATH, AND SELECTABLE POLARITY SCES349C – JUNE 2001 – REVISED NOVEMBER 2001 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 functional description The output-enable (1OEAB, 1OEBY) and polarity-control (1T/C) inputs control 1A, 1B, and 1Y. 2OEAB, 2OEBY, and 2T/C control 2A, 2B, and 2Y. OEAB controls the activity of the B port. When OEAB is low, the B-port output is active. When OEAB is high, the B-port output is disabled. A separate LVTTL A input and Y output provide a feedback path for control and diagnostics monitoring. OEBY controls the Y output. When OEBY is low, the Y output is active. When OEBY is high, the Y output is disabled. T/C selects polarity of data transmission in both directions. When T/C is high, data transmission is true, and A data goes to the B bus and B data goes to the Y bus. When T/C is low, data transmission is complementary, and inverted A data goes to the B bus and inverted B data goes to the Y bus. Function Tables OUTPUT CONTROL INPUTS OUTPUT MODE T/C OEAB OEBY OUTPUT MODE X H H Z Isolation H L H A data to B bus True transparent H H L B data to Y bus True transparent H L L A data to B bus, B data to Y bus True transparent with feedback path L L H Inverted A data to B bus Inverted transparent L H L Inverted B data to Y bus Inverted transparent L L L Inverted A data to B bus, Inverted B data to Y bus Inverted transparent with feedback path OUTPUT EDGE-RATE CONTROL (ERC) INPUT ERC LOGIC LEVEL OUTPUT B-PORT EDGE RATE H Slow L Fast |
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Description similaire - SN74GTLP1395 |
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