GENERAL DESCRIPTION

The W55FXX is a serial input/output flash EEPROM series that is typically used as the memory cell of a W51300 (voice recorder controller) or the ROM code emulator for the PowerSpeechTM 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 cycles: 10,000 (typ.)

• Data retention: 10 years (typ.)

• Low power consumption:

− Operating: 5 mA (typ.)

− Standby: 2 µA (typ.)