ACE24C128/256
Two-wire Serial EEPROM
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
1
0
1
0
A
2
A
1
A
0
LSB
R/W
Figure 7．Device Address
Figure 8．Byte Write
Figure 9．Page Write
VER 1.5
11
ACE [ ACE TECHNOLOGY CO., LTD. ]
