X24001
128 Bit
X24001
Identi
™
PROM
16 x 8 Bit
FEATURES
DESCRIPTION
The X24001 is a CMOS 128 bit serial E
2
PROM, inter-
nally organized as 16 x 8. The X24001 features a serial
interface and software protocol allowing operation on a
simple two wire bus.
The X24001 is ideally suited for identification applica-
tions such as serial numbers or device revision numbers
which need to be stored and retrieved electronically.
V
PGM
is used to enable writes to the device. This
provides full protection of the data in the user’s environ-
ment where V
PGM
is not available.
Xicor E
2
PROMs are designed and tested for applica-
tions requiring extended endurance. Inherent data re-
tention is greater than 100 years.
The X24001 is fabricated with Xicor’s Advanced CMOS
Floating Gate technology.
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2.7V to 5.5V Power Supply
128 Bit Serial E
2
PROM
Low Power CMOS
—Active Current Less Than 1mA
—Standby Current Less Than 50
µ
A
Internally Organized 16 x 8
2 Wire Serial Interface
High Voltage Programmable Only
—V
PGM
, 12V to 15V
Push/Pull Output
High Reliability
—Data Retention: 100 Years
Available Packages
—8-Lead MSOP
—8-Lead PDIP
—8-Lead SOIC
FUNCTIONAL DIAGRAM
PIN CONFIGURATION
SCL
CONTROL
LOGIC
COMMAND/ADDRESS
REGISTER
NC
NC
MSOP/DIP/SOIC
1
2
3
4
X24001
8
7
6
5
VCC
NC
SCL
SDA
SDA
INPUT/
OUTPUT
BUFFER
NC
SHIFT REGISTER
VSS
3830 FHD F02.1
MEMORY ARRAY
3830 FHD F01
IDENTI™ PROM is a trademark of Xicor, Inc.
© Xicor, Inc. 1991, 1995, 1996 Patents Pending
3830-1.5 6/10/96 T2/C1/D0 NS
1
Characteristics subject to change without notice
XICOR [ XICOR INC. ]
