W551C020

W551CXXX Data Sheet Table of Contents- SERIAL VOICE MEMORY 1. GENERAL DESCRIPTION ......................................................................................................... 2 1.1 W551Cxxx Features Description .................................................................................... 2 1.2 W551Cxxx Pad Description ............................................................................................ 3 1.2.1 W551C002/005/010/020/040/060/080 Pad Description....................................................3 1.2.2 W551C160/240/320 Pad Description ...............................................................................4 2. FUNCTION DESCRIPTION ........................................................................................................ 5 2.1 W551Cxxx System Block Diagram ................................................................................. 5 2.2 W551Cxxx Serial Read Mode......................................................................................... 7 2.3 W551Cxxx Self-test Mode .............................................................................................. 9 3. ELECTRICAL CHARACTERISTICS......................................................................................... 10 3.1 W551Cxxx Absolute Maximum Ratings ....................................................................... 10 3.2 W551Cxxx DC Characteristics ...........................................................................