74ACT16543

74ACT16543 16-Bit Registered Transceiver with 3-STATE Outputs

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74ACT16543 16-Bit Registered Transceiver with 3-STATE Outputs

August 1999 Revised October 1999

74ACT16543 16-Bit Registered Transceiver with 3-STATE Outputs
General Description
The ACT16543 contains sixteen non-inverting transceivers containing two sets of D-type registers for temporary storage of data flowing in either direction. Each byte has separate control inputs which can be shorted together for full 16-bit operation. Separate Latch Enable and Output Enable inputs are provided for each register to permit independent input and output control in either direction of data flow.

Features
s Independent registers for A and B buses s Separate controls for data flow in each direction s Back-to-back registers for storage Multiplexed real-time and stored data transfers s Separate control logic for each byte s Outputs source/sink 24 mA s TTL-compatible inputs

Ordering Code:
Order Number 74ACT16543SSC 74ACT16543MTD Package Number MS56A MTD56 Package Description 56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300" Wide 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide

Device also available in Tape and Reel. Specify by appending suffix letter "X" to the ordering code.

Logic Symbol

Connection Diagram

Pin Descriptions
Pin Names OEABn OEBAn CEABn CEBAn LEABn LEBAn A0 A15 B0 B15 Descriptions A-to-B Output Enable Input (Active LOW) B-to-A Output Enable Input (Active LOW) A-to-B Enable Input (Active LOW) B-to-A Enable Input (Active LOW) A-to-B Latch Enable Input (Active LOW) B-to-A Latch Enable Input (Active LOW) A-to-B Data Inputs or B-to-A 3-STATE Outputs B-to-A Data Inputs or A-to-B 3-STATE Outputs

FACTTM is a trademark of Fairchild Semiconductor Corporation.

1999 Fairchild Semiconductor Corporation

DS500301

www.fairchildsemi.com