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74LVT646D Folha de dados(PDF) 4 Page - NXP Semiconductors |
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74LVT646D Folha de dados(HTML) 4 Page - NXP Semiconductors |
4 / 14 page Philips Semiconductors Product specification 74LVT646 3.3V Octal bus transceiver/register (3-State) 1998 Feb 19 4 REAL TIME BUS TRANSFER BUS B TO BUS A OE DIR CPAB CPBA SAB SBA LL X X X L REAL TIME BUS TRANSFER BUS A TO BUS B OE DIR CPAB CPBA SAB SBA LH X X L X STORAGE FROM A, B, OR A AND B OE DIR CPAB CPBA SAB SBA LH ↑ XXX LL X ↑ XX HX ↑↑ XX TRANSFER STORED DATA TO A OR B OE DIR CPAB CPBA SAB SBA L L X H or L X H L H H or L X H X A A A A B B B B SV00049 FUNCTION TABLE INPUTS DATA I/O OPERATING MODE OE DIR CPAB CPBA SAB SBA An Bn OPERATING MODE X X ↑ X X X Input Unspecified output* Store A, B unspecified X X X ↑ X X Unspecified output* Input Store B, A unspecified H H X X ↑ H or L ↑ H or L X X X X Input Input Store A and B data Isolation, hold storage 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 B bus Stored A data to B bus H = High voltage level L = Low voltage level X = Don’t care ↑ = Low-to-High clock transition * The data output function may be enabled or disabled by various signals at the OE input. Data input functions are always enabled, i.e., data at the bus pins will be stored on every Low-to-High transition of the clock. |
Nº de peça semelhante - 74LVT646D |
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Descrição semelhante - 74LVT646D |
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