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Partname: | SN74LVTH646DW |
Description: | 3.3-V ABT OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS |
Manufacturer: | Texas Instruments |
Package: | DW |
Pins: | 24 |
Oper. temp.: | -40 to 85 |
Datasheet: | PDF (137K). Click here to download *) |
The 'LVTH646 devices consist of bus transceiver circuits, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus is clocked into the registers on the low-to-high transition of the appropriate clock (CLKAB or CLKBA) input. Figure 1 illustrates the four fundamental bus-management functions that can be performed with the 'LVTH646. Output-enable (OE) and direction-control (DIR) inputs are provided to control the transceiver functions. In the transceiver mode, data present at the high-impedance port can be stored in either register or in both. The select-control (SAB and SBA) inputs can multiplex stored and real-time (transparent mode) data. The direction control (DIR) determines which bus receives data when OE is low. In the isolation mode (OE high), A data can be stored in one register and/or B data can be stored in the other register. |
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Click here to download SN74LVTH646DW Datasheet*) |
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