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X76F100M8I-3.0 Schematic ( PDF Datasheet ) - Xicor

Teilenummer X76F100M8I-3.0
Beschreibung 1K 128 x 8 Bit
Hersteller Xicor
Logo Xicor Logo 




Gesamt 17 Seiten
X76F100M8I-3.0 Datasheet, Funktion
1K
X76F100
128 x 8 Bit
Secure SerialFlash
FEATURES
• 64-bit password security
• One array (112-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
—3.0 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, MSOP, and smart car module
DESCRIPTION
The X76F100 is a Password Access Security Supervi-
sor, containing one 896-bit Secure SerialFlash 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 X76F100 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 X76F100 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 X76F100 utilizes Xicor’s proprietary Direct Write
cell, providing a minimum endurance of 100,000
cycles and a minimum data retention of 100 years.
BLOCK DIAGRAM
CS
SCL
SDA
Interface
Logic
RST
Chip Enable
Data Transfer
Array Access
Enable
Password Array
and Password
Verification Logic
Reset
Response Register
8K Byte
SerialFlash Array
Array 0
(Password Protected)
32 Byte
SerialFlash Array
Array 1
(Password Protected)
Retry Counter
REV 1.0 6/22/00
www.xicor.com
Characteristics subject to change without notice. 1 of 16






X76F100M8I-3.0 Datasheet, Funktion
X76F100
Figure 4. Sector Write Sequence (Password Required)
Host
Commands
X76F100
Response
SDA S
Write
Command
Write
Password
7
If ACK, Then
Password Matches
Host
Commands
Password ACK
Command
S
X76F100
Responce
Figure 5. Acknowledge Polling
SCL 8th CLK
of 8th
Pwd. Byte
‘ACK’
CLK
SDA
‘ACK’
Start
Condition
Figure 6. Sector Read Sequence (Password Required)
Host
Commands
X76F100
Response
SDA S
Read
Command
If ACK, Then
Password Matches
Host
Commands
Password ACK
Command
S
X76F100
Response
Read
Password
7
Data 0
Write
Password
0
Wait tWC
OR
Password
ACK
Command
P
Wait tWC
Data ACK Polling
8th
CLK
8th Bit
‘ACK’
CLK
ACK or
no ACK
Read
Password
0
Wait tWC
OR
Password
ACK
Command
Data n
P
REV 1.0 6/22/00
www.xicor.com
Characteristics subject to change without notice. 6 of 16

6 Page









X76F100M8I-3.0 pdf, datenblatt
X76F100
PACKAGING INFORMATION
8-Lead Miniature Small Outline Gull Wing Package Type M
0.012 + 0.006 / -0.002
(0.30 + 0.15 / -0.05)
0.118 ± 0.002
(3.00 ± 0.05)
0.0256 (0.65) Typ.
0.118 ± 0.002
(3.00 ± 0.05)
R 0.014 (0.36)
0.030 (0.76)
0.0216 (0.55)
0.036 (0.91)
0.032 (0.81)
7° Typ.
0.040 ± 0.002
(1.02 ± 0.05)
0.008 (0.20)
0.004 (0.10)
0.007 (0.18)
0.005 (0.13)
0.150 (3.81)
Ref.
0.193 (4.90)
Ref.
0.220"
0.0256" Typical
0.025"
Typical
FOOTPRINT
NOTE:
1. ALL DIMENSIONS IN INCHES AND (MILLIMETERS)
0.020"
Typical
8 Places
REV 1.0 6/22/00
www.xicor.com
Characteristics subject to change without notice. 12 of 16

12 Page





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