©Xicor, Inc. 1994, 1995, 1996 Patents Pending

7020-1.2 2/24/97 T1/C0/D2 SH

1

Characteristics subject to change without notice

2K

X24026

256 x 8 Bit

Serial E2PROM

FEATURES

• 2.7V to 5.5V Power Supply

• Low Power CMOS

—Active Current Less Than 1mA

—Standby Current Less Than 50

µA

• Internally Organized 256 x 8

• Self Timed Write Cycle

—Typical Write Cycle Time of 5 ms

• 2 Wire Serial Interface

—Bidirectional Data Transfer Protocol

• Four Byte Page Write Operation

—Minimizes Total Write Time Per Byte

• High Reliability

—Endurance: 100,000 Cycles

—Data Retention: 100 Years

—ESD Protection > 2KV

DESCRIPTION

nally organized 256 x 8. The X24026 features a serial

interface and software protocol allowing operation on a

simple two wire bus.

requiring extended endurance. Inherent data retention is

greater than 100 years. Available in DICE form with ISO

7816 compatible pinout.

ISO 7816 Compatible

FUNCTIONAL DIAGRAM

START

STOP

LOGIC

CONTROL

LOGIC

SLAVE ADDRESS

REGISTER

+COMPARATOR

H.V. GENERATION

TIMING

& CONTROL

WORD

ADDRESS

COUNTER

XDEC

YDEC

DOUT

ACK

E PROM

2

64 X 32

DATA REGISTER

START CYCLE

VCC

R/W

PIN

VSS

SDA

DOUT

LOAD

INC

CK

8

7020 FRM 01

SCL