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參數資料
| 型號： | X76F640Y |
| 英文描述： | Secure SerialFlash |
| 中文描述： | 安全SerialFlash |
| 文件頁數： | 1/17頁 |
| 文件大?。?/td> | 94K |
| 代理商： | X76F640Y |
7025-1.4 3/24/97 T2/C0/D1 SH
Xicor, Inc. 1994, 1995, 1996 Patents Pending
1
Characteristics subject to change without notice
64K
X76F640
8Kx8+32x8
Functional Diagram
Secure SerialFlash
FEATURES
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
2 wire Serial Interface
Low Power CMOS
—2.7 to 5.5V operation
—Standby current Less than 1
—Active current less than 3 mA
High Reliability Endurance:
—100,000 Write Cycles
Data Retention: 100 years
Available in:
—8 lead SOIC
—SmartCard Module
μ
A
DESCRIPTION
The X76F640 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 two 64-bit passwords.
These passwords protect read and write operations 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 X76F640 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). Access to the device
is controlled through a chip select (CS) input, allowing
any number of devices to share the same bus.
The X76F640 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.
The X76F640 utilizes Xicor’s proprietary Direct Write
cell, providing a minimum endurance of 100,000 cycles
and a minimum data retention of 100 years.
TM
LOGIC
CS
SCL
SDA
RST
INTERFACE
8K BYTE
SerialFlash ARRAY
ARRAY 0
(PASSWORD PROTECTED)
DATA TRANSFER
ARRAY ACCESS
ENABLE
RESET
RESPONSE REGISTER
PASSWORD ARRAY
AND PASSWORD
VERIFICATION LOGIC
CHIP ENABLE
RETRY COUNTER
32 BYTE
SerialFlash ARRAY
ARRAY 1
(PASSWORD PROTECTED)
7025 FM 01
相關PDF資料 |
PDF描述 |
|---|---|
| X76F640HE-2.7 | Secure SerialFlash |
| X76F640W-2.7 | Secure SerialFlash |
| X76F640X-2.7 | Secure SerialFlash |
| X76F640YE | Secure SerialFlash |
| X76F641AE-2.0 | Secure SerialFlash |
相關代理商/技術參數 |
參數描述 |
|---|---|
| X76F640Y-2.7 | 制造商:ICMIC 制造商全稱:IC MICROSYSTEMS 功能描述:Secure Serial Flash |
| X76F640YC7631 | 制造商:Intersil Corporation 功能描述:EEPROM Memory |
| X76F640YE | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Secure SerialFlash |
| X76F640YE-2.7 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Secure SerialFlash |
| X76F640YEG | 制造商:ICMIC 制造商全稱:IC MICROSYSTEMS 功能描述:Secure Serial Flash |
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