hn58x2408stie Renesas Electronics Corporation., hn58x2408stie Datasheet - Page 12

• Manufacturer Part Number: hn58x2408stie
• Description: Two-wire Serial Interface 8k Eeprom 1-kword ?? 8-bit 16k Eeprom 2-kword ?? 8-bit
• Manufacturer: Renesas Electronics Corporation.

HN58X2408SI/HN58X2416SI
Acknowledge Polling:
Acknowledge polling feature is used to show if the EEPROM is in an 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 an internally-timed write cycle. Acknowledge polling will operate when the R/W code = “0”.
Acknowledgment “1” (no acknowledgment) shows the EEPROM is in an 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.2.01, Jan.21.2005, page 12 of 17
Proceed write operation
Proceed random address
addressing the memory
device address word
to initiate write cycle
Next operation is
memory address
write command
stop condition
read operation
start condition
with R/W = 0
returned
Send
Send
Send
Send
ACK
Send
Yes
Yes
No
No
start condition
stop condition
Send
Send
stop condition
Send