The \x92FCT543T octal latched transceivers contain two sets of eight D-type latches with separate latch-enable (LEAB\, LEBA\) and output-enable (OEAB\, OEBA\) inputs for each set to permit independent control of input and output in either direction of data flow. For data flow from A to B, for example, the A-to-B enable (CEAB\) input must be low in order to enter data from A or to take data from B, as indicated in the function table. With CEAB\ low, a low signal on the A-to-B latch-enable (LEAB\) input makes the A-to-B latches transparent; a subsequent low-to-high transition of the LEAB\ signal puts the A latches in the storage mode and their outputs no longer change with the A inputs. With CEAB\ and OEAB\ low, the 3-state B-output buffers are active and reflect the data present at the output of the A latches. Control of data from B to A is similar, but uses CEBA\, LEBA\, and OEBA\ inputs.
These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
Products containing the "CY74FCT543T" keyword are: CY74FCT543TQC , CY74FCT543TQCT , CY74FCT543TQCT , CY74FCT543TQCTE4 , CY74FCT543TQCTG4 , CY74FCT543TSOC , CY74FCT543TSOC , CY74FCT543TSOCE4 , CY74FCT543TSOCG4 , CY74FCT543TSOCT , CY74FCT543TSOCT , CY74FCT543TSOCTE4 , CY74FCT543TSOCTG4Status | ACTIVE |
SubFamily | Registered transceiver |
Technology Family | FCT |
VCC | 5.25 |
Bits | 8 |
Voltage | 5 |
F @ nom voltage | 70 |
tpd @ Nom Voltage | 6.5 |
IOL | 64 |
Rating | Catalog |
Operating temperature range | -40 to 85 |
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 | 0.26 | 1ku |
Schmitt Trigger | No |