HN58X2402SFPIAG Просмотр технического описания (PDF) - Renesas Electronics

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HN58X2402SFPIAG

Two-wire serial interface

Renesas Electronics 

HN58X2402SFPIAG/HN58X2404SFPIAG

Acknowledge

All addresses and data words are serially transmitted to and from in 8-bit words. The receiver sends a zero to

acknowledge that it has received each word. This happens during ninth clock cycle. The transmitter keeps bus open to

receive acknowledgment from the receiver at the ninth clock. In the write operation, EEPROM sends a zero to

acknowledge after receiving every 8-bit words. In the read operation, EEPROM sends a zero to acknowledge after

receiving the device address word. After sending read data, the EEPROM waits acknowledgment by keeping bus open.

If the EEPROM receives zero as an acknowledge, it sends read data of next address. If the EEPROM receives

acknowledgment "1" (no acknowledgment) and a following stop condition, it stops the read operation and enters a

stand-by mode. If the EEPROM receives neither acknowledgment "0" nor a stop condition, the EEPROM keeps bus

open without sending read data.

Acknowledge Timing Waveform

SCL

SDA IN

SDA OUT

1

2

8

9

Acknowledge

out

Rev.4.00, Jul.13.2005, page 9 of 16

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