74ALVCH16543

INTEGRATED CIRCUITS DATA SHEET 74ALVCH16543 16-bit D-type registered transceiver; 3-state Product specification Supersedes data of 1998 Aug 31 File under Integrated Circuits, IC24 1999 Nov 23 Philips Semiconductors Product specification 16-bit D-type registered transceiver; 3-state FEATURES In accordance with JEDEC standard no 8-1A CMOS low power consumption Direct interface with TTL levels MULTIBYTE™ flow-through pin-out architecture 16-bit transceiver with D-type latch Combines 16245 and 16373 type functions in one chip Back-to-back registers for storage Output drive capability 50 Ω transmission lines at 85 °C Separate controls for data flow in each direction All data inputs have bus hold 3-state non-inverting outputs for bus oriented applications Current drive ±24 mA at 3.0 V. DESCRIPTION The 74ALVCH16543 is a dual octal registered transceiver. Each section contains two sets of D-type latches for temporary storage of the data flow in either direction. FUNCTION TABLE See note 1. INPUTS OUTPUTS nOEXX H X L L L L L L L Note 1. XX = AB for A-to-B direction, BA for B-to-A direction; H = HIGH voltage level; L = LOW voltage level; nEXX X H ↑ ↑ L L L L L nLEXX X X L L ↑ ↑ L L H nBn, nAn X X h l h l H L X Z Z Z Z H L H L NC 74ALVCH16543 Separate latch enable (nLEAB, nLEBA) and output enable (nOEAB, nOEBA) inputs are provided for each register to permit independent control in either direction of the data flow. The ‘16543’ contains two sections each consi...