Winbond Electronics Corporation ISD1720
the ISD1720 device are optimized for a wide range of battery or line-powered applications. The ISD1720 is designed for operation in either standalone or microcontroller (SPI) mode. The device incorporates a proprietary message management system that allows the chip to self-manage address locations for multiple messages.GENERAL DESCRIPTION
..............................................................................................................3FEATURES
......................................................................................................................................4 BLOCK DIAGRAM...........................................................................................................................5 PINOUT CONFIGURATION............................................................................................................6 PINDESCRIPTION
.........................................................................................................................7 MODES OF OPERATIONS .............................................................................................................8 6.1 Standalone (Push-Button) Mode .............................................................................................8 6.2 SPI Mode .................................................................................................................................8 7 TIMING DIAGRAMS .............................................