hn58x2408fpiage Renesas Electronics Corporation., hn58x2408fpiage Datasheet - Page 14

• Manufacturer Part Number: hn58x2408fpiage
• Description: Memory>eeprom>serial Eeprom Two-wire Serial Interface
• Manufacturer: Renesas Electronics Corporation.

HN58X2408/HN58X2416/HN58X2432/HN58X2464FPIAG
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.3.00, Dec.21.2004, page 14 of 19
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
ACK
Send
Yes
Yes
No
No
start condition
stop condition
Send
Send
stop condition
Send