X24641S8 데이터 시트보기 (PDF) - Xicor -> Intersil

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X24641S8

400 KHz 2-Wire Serial E2PROM

Xicor -> Intersil 

64K

X24641

8K x 8 Bit

400 KHz 2-Wire Serial E2PROM

FEATURES

• 1.8V to 3.6V, 2.5V to 5.5V and 4.5V to 5.5V

Power Supply Operation

• Low Power CMOS

—Active Read Current Less Than 1mA

—Active Write Current Less Than 3mA

—Standby Current Less Than 1µA

• 400KHz Fast Mode 2-Wire Serial Interface

—Down to 1.8V

—Schmitt Trigger Input Noise Suppression

—Output Slope Control for Ground Bounce

Noise Elimination

• Internally Organized 8K x 8

• 32 Byte Page Write Mode

—Minimizes Total Write Time Per Byte

• Hardware Write Protect

• Bidirectional Data Transfer Protocol

• Self-Timed Write Cycle

—Typical Write Cycle Time of 5ms

• High Reliability

—Endurance: 1,000,000 Cycles

—Data Retention: 100 Years

• 8-Lead SOIC

DESCRIPTION

The X24641 is a CMOS Serial E2PROM Memory,

internally organized 8K x 8. The device features a

serial interface and software protocol allowing opera-

tion on a simple two wire bus. The bus operates at

400KHz all the way down to 1.8V.

Three device select inputs (S0–S2) allow up to eight

devices to share a common two wire bus.

Hardware Write Protection is provided through a Write

Protect (WP) input pin on the X24641. When the WP

pin is HIGH, the upper quadrant of the Serial E2PROM

array is protected against any nonvolatile write

attempts.

Xicor Serial E2PROM Memories are designed and

tested for applications requiring extended endurance.

Inherent data retention is greater than 100 years.

FUNCTIONAL DIAGRAM

SERIAL E2PROM DATA

AND ADDRESS (SDA)

SCL

COMMAND

DECODE

AND

CONTROL

LOGIC

S2

DEVICE

S1

SELECT

LOGIC

S0

PAGE

DECODE

LOGIC

WRITE

PROTECT

LOGIC

DATA REGISTER

Y DECODE LOGIC

E2PROM

ARRAY

8K x 8

WRITE VOLTAGE

WP

CONTROL

7026 FM 01

©Xicor, 1995, 1996 Patents Pending

7026 3/27/97 T0/C0/D0 SH

Characteristics subject to change without notice

1

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