ACE24C128/256

Two-wire Serial EEPROM

VER 1.5

11

Sequential Read:

Sequential reads are initiated by either a current address read or a random address read. After the

microcontroller receives a data word, it responds with an acknowledge. As long as the EEPROM

receives an acknowledge, it will continue to increment the data word address and serially clock out

sequential data words. When the memory address limit (256K) is reached, the data word address will

“roll over” and the sequential read will continue. The sequential read operation is terminated when the

microcontroller does not respond with a zero but does generate a following stop condition (refer to

Figure 12).

MSB

LSB

1

0

1

0

R/W

Figure 7．Device Address

Figure 8．Byte Write

Figure 9．Page Write