データシートサーチシステム |
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SN74ABT18646PMG4 データシート(PDF) 3 Page - Texas Instruments |
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SN74ABT18646PMG4 データシート(HTML) 3 Page - Texas Instruments |
3 / 13 page SN74ABT18646 SCAN TEST DEVICE WITH 18-BIT TRANSCEIVER AND REGISTER SCBS131A – AUGUST 1992 – REVISED JANUARY 2002 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 FUNCTION TABLE (normal mode, each 9-bit section) INPUTS DATA I/O OPERATION OR FUNCTION OE DIR CLKAB CLKBA SAB SBA A1–A9 B1–B9 OPERATION OR FUNCTION X X ↑ X X X Input Unspecified† Store A, B unspecified† X XX ↑ X X Unspecified† Input Store B, A unspecified† H X ↑ ↑ X X Input Input Store A and B data H X L L X X Input disabled Input disabled Isolation, hold storage L L X X X L Output Input Real-time B data to A bus L L X X X H Output Input disabled Stored B data to A bus L H X X L X Input Output Real-time A data to B bus L H L X H X Input disabled Output Stored A data to B bus † The data output functions can be enabled or disabled by various signals at the OE and DIR inputs. Data input functions are always enabled; i.e., data at the bus terminals is stored on every low-to-high transition of the clock inputs. |
同様の部品番号 - SN74ABT18646PMG4 |
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同様の説明 - SN74ABT18646PMG4 |
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