IDT74FCT543

IDT54/74FCT543/A/C FAST CMOS OCTAL LATCHED TRANSCEIVER FAST CMOS OCTAL LATCHED TRANSCEIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES IDT54/74FCT543/A/C FEATURES: − IDT54/74FCT543 equivalent to FAST™ speed − IDT54/74FCT543A 25% faster than FAST − IDT54/74FCT543C 40% faster than FAST − Equivalent to FAST output drive over full temperature and voltage supply extremes − IOL = 64mA (commercial), 48mA (military) − Separate controls for data flow in each direction − Back-to-back latches for storage − CMOS power levels (1mW typ. static) − Substantially lower input current levels than FAST (5µ A max.) − TTL input and output level compatible − CMOS output level compatible − Military product compliant to MIL-STD-883, Class B − Available in the following packages: Commercial: SOIC Military: CERDIP, LCC, CERPACK DESCRIPTION: The FCT543 is a non-inverting octal transceiver built using an advanced dual metal CMOS technology. These devices contain two sets of eight D-type latches with separate input and output controls for each set. 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 A0–A7 or to take data from B0–B7, 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 both ...