M24C04-R datasheet(12/34 Pages) STMICROELECTRONICS

部件名	M24C04-R

功能描述	4-Kbit serial IC bus EEPROM

PDF	34 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

12 / 34 page

Device operation

M24C04-W M24C04-R M24C04-F

12/34

DocID023994 Rev 3

4.5

Device addressing

To start communication between the bus master and the slave device, the bus master must

initiate a Start condition. Following this, the bus master sends the device select code, shown

in Table 2 (on Serial Data (SDA), most significant bit first).

The 8th bit is the Read/Write bit (RW). This bit is set to 1 for Read and 0 for Write operations.

If a match occurs on the device select code, the corresponding device gives an

acknowledgment on Serial Data (SDA) during the 9th bit time. If the device does not match

the device select code, it deselects itself from the bus, and goes into Standby mode.

Table 2. Device select code

Device type identifier(1)

1. The most significant bit, b7, is sent first.

Chip Enable address

M24C04-R 数据表(PDF) 12 Page - STMicroelectronics