AT24CS64 [DATASHEET]

Atmel-8870B-SEEPROM-AT24CS64-Datasheet_082014

2

1.

Description

Memory (EEPROM) organized as 8,192 words of eight bits each. The device is optimized for use in many

industrial and commercial applications where low-power and low-voltage operation are essential. The

AT24CS64 is available in space-saving, 8-lead JEDEC SOIC, 8-lead TSSOP, and 8-pad UDFN packages and

The AT24CS64 provides the additional feature of a factory programmed, guaranteed unique 128-bit serial

number, while maintaining all of the traditional features available in the 64-Kbit Serial EEPROM. The time

consuming step of performing and ensuring true serialization of product on a manufacturing line can be

removed from the production flow by employing the CS Series Serial EEPROM. The 128-bit serial number is

programmed and permanently locked from future writing during the Atmel production process. Further, this

128-bit location does not consume any of the user read/write area of the 64-Kbit Serial EEPROM. The

uniqueness of the serial number is guaranteed across the entire CS Series of Serial EEPROMs, regardless of

the size of the memory array or the type of interface protocol. This means that as an application's needs for

memory size or interface protocol evolve in future generations, any previously deployed serial number from any

Atmel CS Series Serial EEPROM part will remain valid.

2.

Pin Descriptions and Pinout

Figure 2-1.

Pin Configuration

Pin Name

Function

Address Inputs

SDA

Serial Data

SCL

Serial Clock Input

WP

Write Protect

GND

Ground

Power Supply

Note:

Drawings are not to scale.

1

2

3

4

GND

8

7

6

5

WP

SCL

SDA

8-pad UDFN

8-lead TSSOP

1

2

3

4

8

7

6

5

GND

WP

SCL

SDA

1

2

3

4

GND

8

7

6

5

WP

SCL

SDA

8-lead SOIC

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