AT24CS01 데이터 시트보기 (PDF) - Atmel Corporation

부품명

상세내역

제조사

AT24CS01

I2C-Compatible (2-wire) Serial EEPROM with a Unique, Factory Programmed 128-bit Serial Number

Atmel Corporation 

1. Description

The Atmel® AT24CS01 and AT24CS02 provides 1024/2048 bits of Serial Electrically Erasable and Programmable

Read-only Memory (EEPROM) organized as 128/256 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 AT24CS01/02 is

available in space-saving, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN and 5-lead SOT23 packages and is

accessed via a 2-wire serial interface. In addition, both devices fully operate from 1.7V to 5.5V VCC.

The AT24CS01/02 provides the additional feature of a factory programmed, guaranteed unique 128-bit serial number,

while maintaining all of the traditional features available in the 1-Kbit or 2-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 1-Kbit or 2-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

A0 - A2

SDA

SCL

WP

GND

VCC

Function

Address Inputs

Serial Data

Serial Clock Input

Write Protect

Ground

Power Supply

A0

A1

A2

GND

8-lead SOIC

1

8

2

7

3

6

4

5

VCC

WP

SCL

SDA

8-lead TSSOP

A0 1

A1 2

A2 3

GND 4

8 VCC

7 WP

6 SCL

5 SDA

8-pad UDFN

VCC 8

WP 7

SCL 6

SDA 5

1 A0

2 A1

3 A2

4 GND

Bottom View

5-lead SOT23

SCL 1

5 WP

GND 2

SDA 3

4 VCC

Note:

For use of 5-lead SOT23, the software A2, A1, and A0 bits in the device address word must be set to

zero to properly communicate with the device.

Atmel AT24CS01/02 [PRELIMINARY DATASHEET]

2

8815A–SEEPR–6/12

Share Link: