Datasheet > X76F641XE-2.0

X76F641XE-2.0

更新时间： 2024-01-07 23:30:22

品牌	Logo	应用领域
XICOR		/
页数	文件大小	规格书
17页	120K
描述
Secure SerialFlash

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中文翻译

获取价格

数据手册

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X76F641XE-2.0 数据手册

ISO 7816 Compatible

64K

8Kx8+32x8

X76F641

Secure SerialFlash

FEATURES

DESCRIPTION

• 64-bit Password Security

—Five 64-bit Passwords for Read, Program

and Reset

• 8192 Byte+32 Byte Password Protected Arrays

—Seperate Read Passwords

—Seperate Write Passwords

—Reset Password

• Programmable Passwords

• Retry Counter Register

—Allows 8 tries before clearing of both arrays

—Password Protected Reset

• 32-bit Response to Reset (RST Input)

• 32 byte Sector Program

• 400kHz Clock Rate

The X76F641 is a Password Access Security Supervisor,

containing one 65536-bit Secure SerialFlash array and

one 256-bit Secure SerialFlash array. Access to each

memory array is controlled by ﬁve 64-bit passwords

each. These passwords protect read and write opera-

tions of the memory array. A separate RESET password

is used to reset the passwords and clear the memory

arrays in the event the read and write passwords are lost.

The X76F641 features a serial interface and software

protocol allowing operation on a popular two wire bus.

The bus signals are a clock Input (SCL) and a bidirec-

tional data input and output (SDA).

The X76F641 also features a synchronous response to

reset providing an automatic output of a hard-wired 32-bit

data stream conforming to the industry standard for

memory cards.

• 2 wire Serial Interface

• Low Power CMOS

—2.0 to 5.5V operation

—Standby current Less than 1µA

—Active current less than 3 mA

• High Reliability Endurance:

—100,000 Write Cycles

The X76F641 utilizes Xicor’s proprietary Direct Write

cell, providing a minimum endurance of 100,000 cycles

and a minimum data retention of 100 years.

• Data Retention: 100 years

• Available in:

—8 lead EIAJ SOIC

—SmartCard Module

Functional Diagram

8K BYTE

SerialFlash ARRAY

DATA TRANSFER

SCL

ARRAY 0

(PASSWORD PROTECTED)

SDA

ARRAY ACCESS

ENABLE

INTERFACE

LOGIC

32 BYTE

SerialFlash ARRAY

ARRAY 1

PASSWORD ARRAY

AND PASSWORD

(PASSWORD PROTECTED)

VERIFICATION LOGIC

RST

RESET

RETRY COUNTER

RESPONSE REGISTER

7025 FM 01

Xicor, Inc. 1994, 1995, 1996 Patents Pending

9900-5004.5 3/9/99 EP

Characteristics subject to change without notice

12 3 4 5 6 7...17

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