hn58x2402sfpiage Renesas Electronics Corporation., hn58x2402sfpiage Datasheet - Page 12

• Manufacturer Part Number: hn58x2402sfpiage
• Description: Two-wire Serial Interface 2k Eeprom 256-word ?? 8-bit 4k Eeprom 512-word ?? 8-bit
• Manufacturer: Renesas Electronics Corporation.

HN58X2402SFPIAG/HN58X2404SFPIAG
Acknowledge Polling:
Acknowledge polling feature is used to show if the EEPROM is in a internally-timed write cycle or not. This feature is
initiated by the stop condition after inputting write data. This requires the 8-bit device address word following the start
condition during a internally-timed write cycle. Acknowledge polling will operate when the R/W code = “0”.
Acknowledgment “1” (no acknowledgment) shows the EEPROM is in a internally-timed write cycle and
acknowledgment “0” shows that the internally-timed write cycle has completed. See Write Cycle Polling using ACK.
Write Cycle Polling using ACK
Rev.4.00, Jul.13.2005, page 12 of 16
Proceed write operation
Proceed random address
addressing the memory
device address word
to initiate write cycle
memory address
Next operation is
write command
read operation
stop condition
start condition
with R/W = 0
returned
Send
Send
Send
Send
Send
ACK
Yes
Yes
No
No
start condition
stop condition
Send
Send
stop condition
Send