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IDT74FCT543

Part Number	IDT74FCT543
Manufacturer	Integrated Device Technology
Description	FAST CMOS OCTAL LATCHED TRANSCEIVER
Published	Apr 4, 2005
Detailed Description	IDT54/74FCT543/A/C FAST CMOS OCTAL LATCHED TRANSCEIVER FAST CMOS OCTAL LATCHED TRANSCEIVER MILITARY AND COMMERCIAL TEMP...
Datasheet	IDT74FCT543 PDF File

Overview

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 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 the CEBA, LEBA and OEBA inputs.
FUNCTIONAL BLOCK DIAGRAM A0 3 DQ LE DETAIL A QD LE 22 B0 A1 4 A2 5 A3 6 A4 7 A5 8 A6 9 A7 10 2 OEBA CEBA LEBA 23 1 DETAIL A x 7 MILITARY AND COMMERCIAL TEMPERATURE RANGES c 1999 Integrated Device Technology, Inc.
1 21 B1 20 B2 19 B3 18 B4 17 B5 16 B6 15 B7 13 OEAB 11 CEAB 14 LEAB JUNE 2000 DSC-4602...

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