Dual In Line Package >NAME >VALUE PIN HEADER A >NAME >VALUE VV CONNECTOR A B >NAME >VALUE 40 VV UU LH >NAME GND VCC >NAME >NAME GND >VALUE TXD >NAME >NAME Bus Transceiver BC08J compatible bus connector >VALUE >VALUE SUPPLY SYMBOL SUPPLY SYMBOL Date: >LAST_DATE_TIME Sheet: >SHEET REV: TITLE: Document Number: >DRAWING_NAME FRAME 401 x 266 mm, landscape PIN HEADER 1 >NAME >VALUE 20 >VALUE >NAME PIN HEADER TTL Devices, 74xx Series with US Symbols Based on the following sources: <ul> <li>Texas Instruments TTL Data Book   Volume 1, 1996. <li>TTL Data Book, Volume 2 , 1993 <li>National Seminconductor Databook 1990, ALS/LS Logic <li>ttl 74er digital data dictionary, ECA Electronic + Acustic GmbH, ISBN 3-88109-032-0 <li>http://icmaster.com/ViewCompare.asp </ul> <author>Created by librarian@cadsoft.de</author> Dual In Line Package >NAME >VALUE Wide Small Outline package 300 mil >VALUE >NAME Leadless Chip Carrier Ceramic Package >NAME >VALUE >NAME >VALUE >NAME GND VCC Octal BUFFER and LINE DRIVER, 3-state