ACE24C256C

Two-wire serial EEPROM

VER 1.2

6

Device Operation

Data Input

The SDA pin is normally pulled high with an external device. Data on the SDA pin may change only during

SCL low time periods (see to Figure 3). Data changes during SCL high periods will indicate a start or stop

condition as defined below.

Figure1：Bus Timing

Figure2：Write Cycle Timing

Figure3：Data Validity