R1EX24008ASA00A_10 Datasheet, PDF (14/24 Pages) Renesas Technology Corp – Two-wire serial interface 8k EEPROM (1-kword × 8-bit)

R1EX24008Axx00A
Write Operations
Byte Write:
A write operation requires an 8-bit device address word with R/W = “0”. Then the EEPROM sends
acknowledgment "0" at the ninth clock cycle. After these, the 8kbit EEPROM receives 2 sequence 8-bit
memory address words. Upon receipt of this memory address, the EEPROM outputs acknowledgment "0"
and receives a following 8-bit write data. After receipt of write data, the EEPROM outputs
acknowledgment "0". If the EEPROM receives a stop condition, the EEPROM enters an internally-timed
write cycle and terminates receipt of SCL, SDA inputs until completion of the write cycle. The EEPROM
returns to a standby mode after completion of the write cycle.
Byte Write Operation
Device
address
8k
1010
Start
Memory
address (n)
Write data (n)
W
ACK
R/W
ACK
Stop
REJ03C0351-0100 Rev.1.00 Oct.26, 2009
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