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 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 will receive 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.
Products containing the "SN74BCT646" keyword are: SN74BCT646DW , SN74BCT646DW , SN74BCT646DWE4 , SN74BCT646DWE4 , SN74BCT646DWR , SN74BCT646DWR , SN74BCT646DWRG4 , SN74BCT646NT , SN74BCT646NTStatus | ACTIVE |
SubFamily | Registered transceiver |
Technology Family | BCT |
VCC | 5.5 |
Bits | 8 |
Voltage | 5 |
F @ nom voltage | 70 |
tpd @ Nom Voltage | 10.5 |
IOL | 64 |
Rating | Catalog |
Operating temperature range | 0 to 70 |
Package Group | SOIC|24 |
Package size: mm2:W x L (PKG) | [pf]24SOIC[/pf]: 160 mm2: 10.3 x 15.5 (SOIC|24) |
Approx. price | 4.94 | 1ku |
Schmitt Trigger | No |