ISD1720

www.DataSheet4U.com PRELIMINARY ISD1720 Multi-Message Single-Chip Voice Record & Playback Device Publication Release Date: April 4, 2007 Revision 0 www.DataSheet4U.com ISD1720 TABLE OF CONTENTS 1 2 3 4 5 6 GENERAL DESCRIPTION ..............................................................................................................3 FEATURES......................................................................................................................................4 BLOCK DIAGRAM...........................................................................................................................5 PINOUT CONFIGURATION............................................................................................................6 PIN DESCRIPTION .........................................................................................................................7 MODES OF OPERATIONS .............................................................................................................8 6.1 Standalone (Push-Button) Mode .............................................................................................8 6.2 SPI Mode .................................................................................................................................8 7 TIMING DIAGRAMS ........................................................................................................................8 7.1 Basic Operation .............................................