X76F041 Datasheet PDF Download, Xicor





X76F041 Datasheet PDF File Download

Part Number X76F041
Description PASS TM SecureFlash
Manufacture Xicor
Total Page 21 Pages
PDF Download Download X76F041 Datasheet PDF

Features: APPLICATION NOTE A V A I L A B L E AN83 • Development Tools XK76C Password Access Security Supervisor 4K X76F041 PASSTM SecureFlash DESCRIPTION 4 x 128 x 8 Bit FEATURES • 64-Bit Password Security • Three Password Modes —Se cure Read Access —Secure Write Access —Secure Configuration Access • Pr ogrammable Configuration —Read, Writ e and Configuration Access Passwords Multiple Array Access/Functionality Retry Register/Counter • 8 Byte Sec tor Write • (4) 1K Memory Arrays • ISO Response to Reset • Low Power CMO S —50µ A Standby Current —3mA Acti ve Current • 1.8V to 3.6V or 5V “Un ivolt” Read and Program Power Supply Versions • High Reliability —Endura nce: 100,000 Cycles —Data Retention: 100 Years —ESD Protection: 2000V on A ll Pins The X76F041 is a password acce ss security supervisor device, containi ng four 128 x 8 bit SecureFlash arrays. Access can be controlled by three 64-b it programmable passwords, one for read operations, one for write operations and one for device configuration. The X7.

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APPLICATION NOTE
A V A I LABLE
AN83 • Development Tools XK76C
Password Access Security Supervisor
4K
X76F041
4 x 128 x 8 Bit
PASSTM SecureFlash
FEATURES
• 64-Bit Password Security
• Three Password Modes
—Secure Read Access
—Secure Write Access
—Secure Configuration Access
• Programmable Configuration
—Read, Write and Configuration Access
Passwords
—Multiple Array Access/Functionality
—Retry Register/Counter
• 8 Byte Sector Write
• (4) 1K Memory Arrays
• ISO Response to Reset
• Low Power CMOS
—50µA Standby Current
—3mA Active Current
• 1.8V to 3.6V or 5V “Univolt” Read and Program
Power Supply Versions
• High Reliability
—Endurance: 100,000 Cycles
—Data Retention: 100 Years
—ESD Protection: 2000V on All Pins
DESCRIPTION
The X76F041 is a password access security supervisor
device, containing four 128 x 8 bit SecureFlash arrays.
Access can be controlled by three 64-bit programmable
passwords, one for read operations, one for write opera-
tions and one for device configuration.
The X76F041 features a serial interface and software
protocol allowing operation on a simple two wire bus. The
bus signals are a clock input (SCL) and a bidirectional
data input and output (SDA). Access to the device is con-
trolled through a chip select input (CS), allowing any
number of devices to share the same bus.
The X76F041 also features a synchronous response to
reset; providing an automatic output of a pre-configured
32-bit data stream conforming to the ISO standard for
memory cards.
The X76F041 utilizes Xicor’s proprietary Direct WriteTM
cell, providing a minimum endurance of 100,000 cycles
per sector and a minimum data retention of 100 years.
FUNCTIONAL DIAGRAM
CS
SCL
SDA
RETRY
COUNTER
INTERFACE
LOGIC
RST
©Xicor, Inc. 1994, 1995, 1996 Patents Pending
7002-2.2 4/30/97 T3/C0/D0 SH
CHIP
ENABLE
DATA
TRANSFER
ARRAY ACCESS
ENABLE
PASSWORD ARRAY AND
PASSWORD VERIFICATION
LOGIC
ISO RESET RESPONSE
DATA REGISTER
CONFIGURATION
REGISTER
1
000–07F
080–0FF
100–17F
180–1FF
(4) 16 x 64
SECUREFLASH
ARRAYS
7002 ILL F01
Characteristics subject to change without notice

                    
                    






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