M34C02 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M34C02

2 Kbit Serial I²C Bus EEPROM For DIMM Serial Presence Detect

STMicroelectronics 

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M34C02

Figure 5. I2C Bus Protocol

SCL

SDA

START

Condition

SDA

Input

SDA

Change

STOP

Condition

SCL

SDA

1

2

3

MSB

START

Condition

7

8

9

ACK

SCL

SDA

1

2

3

MSB

7

8

9

ACK

STOP

Condition

AI00792B

Table 2. Device Select Code

Device Type Identifier1

Chip Enable Address2

RW

b7

b6

b5

b4

b3

b2

b1

b0

Memory Area Select

Code (two arrays)

1

0

1

0

E2

E1

E0

RW

Protection Register

Select Code

0

1

1

0

E2

E1

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

2. E0, E1 and E2 are compared against the respective external pins on the memory device.

E0

RW

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