X76F200 Datasheet, PDF (1/16 Pages) Xicor Inc. – Secure SerialFlash

This X76F200 device has been acquired by
IC MICROSYSTEMS from Xicor, Inc.
2K
X76F200
ICmic^TM
IC MICROSYSTEMS
256 x 8 bit
Secure Serial Flash
FEATURES
•64-bit Password Security
•One Array (240 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
—2.0 to 5.5V operation
—Standby current Less than 1µA
—Active current less than 3 mA
•High Reliability Endurance:
—100,000 Write Cycles
•Data Retention: 100 years
•Available in:
—8 lead PDIP, SOIC, TSSOP, Smart Card and
Smart Card Module
DESCRIPTION
The X76F200 is a Password Access Security Supervisor,
containing one 1920-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 X76F200 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
bidirectional data input and output (SDA).
The X76F200 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 X76F200 utilizes Xicor’s proprietary Direct WriteTM
cell, providing a minimum endurance of 100,000 cycles and
a minimum data retention of 100 years.
Functional Diagram
CS
SCL
SDA
INTERFACE
LOGIC
RST
©Xicor, Inc. 1999 Patents Pending
9900-5004.3 1/26/99 EP
CHIP ENABLE
DATA TRANSFER
ARRAY ACCESS
ENABLE
PASSWORD ARRAY
AND PASSWORD
VERIFICATION LOGIC
RESET
RESPONSE REGISTER
1
Retry Counter
8K BYTE
SerialFlash ARRAY
ARRAY 0
32 BYTE
SerialFlash ARRAY
ARRAY 1
(PASSWORD PROTECTED)
RETRY COUNTER
7025 FM 01
Characteristics subject to change without notice