W55FXX SERIAL FLASH EEPROM SERIES GENERAL DESCRIPTION The W55FXX is a serial input/output flash EEPROM series that is typically used as the memory cell TM of a W51300 (voice recorder controller) or the ROM code emulator for the PowerSpeech series.
The single voltage supply eliminates the need for an extra pump circuit during programming and erasing.
FEATURES • • • • Provides CLK, ADDR, and DATA pins to operate with Winbond PowerSpeechTM series 512K/1M/2M memory sizes available Directly cascadable for longer duration Fast frame-write operation − Frame (32 bits) program cycle time: 400 µS (typ.
) Fast whole-chip-erase duration: 50 mS (max.
) Read data access time: 500 nS (max.
) Program/erase c...

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