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參數(shù)資料
| 型號(hào)： | YWW7640I |
| 廠商： | IC MICROSYSTEMS Sdn. Bhd. |
| 英文描述： | Secure SerialFlash |
| 中文描述： | 安全SerialFlash |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 333K |
| 代理商： | YWW7640I |
REV 1.0 7/5/00
Characteristics subject to change without notice.
1 of 14
www.icmic.com
BLOCK DIAGRAM
496 Byte
EEPROM Array
Logic
SCL
SDA
RST
Interface
Data Transfer
Array Access
Enable
ISO Reset
Response Register
Password Array
and Password
Verification Logic
Retry Counter
Erase Logic
4K
X76F400
512 x 8 bit
Secure SerialFlash
FEATURES
64-bit password security
One array (496 bytes) two passwords (16 bytes)
—Read password
—Write password
Programmable passwords
Retry counter register
—Allows 8 tries before clearing of the array
32-bit response to reset (RST input)
8 byte sector write mode
1MHz clock rate 2-wire
serial interface Low
power CMOS
—2.5 to 5.5V operation
—Standby current less than 1A
—Active current less than 3 mA
High reliability endurance:
—100,000 write cycles
Data retention: 100 years
Available in:
—8-lead, SOIC,TSSOP
DESCRIPTION
The X76F400 is a password access security supervisor,
containing one 3968-bit Secure Serial Flash array.
Access to the memory array can be controlled by two 64-bit
passwords. These passwords protect read and
write operations of the memory array.
The X76F400 features a serial interface and software
protocol allowing operation on a popular 2-wire bus.
The bus signals are a clock input (SCL) and a bi-directional
data input and output (SDA).
The X76F400 also features a synchronous response to
reset, providing an automatic output of a hard-wired
32-bit data stream, thereby meeting the industry standard
for memory cards.
The X76F400 utilizes Xicor’s proprietary Direct Write
cell, providing a minimum endurance of 100,000
cycles and a minimum data retention of 100 years.
This X76F400 device has been acquired by
IC MICROSYSTEMS from Xicor, Inc.
ICmic
IC MICROSYSTEMS
TM
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