| Part Number | SN74BCT646 |
| Manufacturer | Texas Instruments |
| Title | Octal Bus Transceivers |
| Description | ordering information NC − No internal connection These devices consist of bus transceiver circuits, D-type flip-flops, and control circuitry arr... |
| Features |
nd 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...
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| File Size | 332.32KB |
| Datasheet |
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SN74BCT640 : The ′BCT640 bus transceiver is designed for asynchronous communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. The SN54BCT640 is characterized for operation over the full military temperature range of − 55°C to 125°C. The SN74BCT640 is characterized for operation from 0°C to 70°C. A8 GND B8 SN54BCT640 . . . FK PACKAGE (TOP VIEW) OE VCC DIR A1 A2 3 2 1 20 19 A3 4 18 B1 A4 5 17 B2 A5 6 16 B3 A6 7 15 B4 A7 8 14 B5 9 10 11 12 13 B7 B6 FUNC.
SN74BCT646NT : ordering information NC − No internal connection These 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 ’BCT646 devices. 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 o.