SO 20L WB  Drawing Last Update: Feb 2013
M20B SOW20, Packing Drawing Last Update: Jan 2016
SOIC Tape And Reel Packing Drawing Last Update: Jun 2016
MDIP 20L  Drawing Last Update: Jan 2015
TSSOP 20L  Drawing Last Update: Jan 2015
MTC20 TSSOP20 Leads, Packing Drawing Last Update: Jan 2016
DC Electrical Characteristics of MM74HC High Speed CMOS Logic Last Update : 05-Mar-2011
High Speed CMOS (MM74HC) Processing Last Update : 05-Mar-2011
An Introduction to and Comparison of 74HCT TTL Compatible CMOS Logic Last Update : 05-Mar-2011