74ALVT16543

INTEGRATED CIRCUITS 74ALVT16543 2.5V/3.3V ALVT 16-bit registered transceiver (3-State) Product specification Supersedes data of 1995 Dec 21 IC23 Data Handbook 1998 Feb 13 Philips Semiconductors Philips Semiconductors Product specification 2.5V/3.3V 16-bit registered transceiver (3-State) 74ALVT16543 FEATURES 16-bit universal bus interface 5V I/O Compatible 3-State buffers Output capability: +64mA/-32mA TTL input and output switching levels Input and output interface capability to systems at 5V supply Bus-hold data inputs eliminate the need for external pull-up Live insertion/extraction permitted Power-up 3-State Power-up reset No bus current loading when output is tied to 5V bus Latch-up protection exceeds 500mA per JEDEC Std 17 ESD protection exceeds 2000V per MIL STD 883 Method 3015 and 200V per Machine Model resistors to hold unused inputs DESCRIPTION The 74ALVT16543 is a high-performance BiCMOS product designed for VCC operation at 2.5V or 3.3V with I/O compatibility up to 5V. The device can be used as two 8-bit transceivers or one 16-bit transceiver. The 74ALVT16543 contains two sets of eight D-type latches, with separate control pins for each set. Using data flow from A to B as an example, when the A-to-B Enable (nEAB) input and the A-to-B Latch Enable (nLEAB) input are Low, the A-to-B path is transparent. A subsequent Low-to-High transition of the nLEAB signal puts the A data into the latches where it is stored and the B outputs no lo...