X24022SI-3
| Model | X24022SI-3 |
| Description | Serial E2PROM |
| PDF file | Total 14 pages (File size: 61K) |
| Chip Manufacturer | XICOR |
Preliminary Information
Pin 7 No
X24022 Connect
2K
X24022
Serial E
2
PROM
256 x 8 Bit
FEATURES
DESCRIPTION
The X24022 is a CMOS 2048 bit serial E
2
PROM, inter-
nally organized 256 x 8. The X24022 features a serial
interface and software protocol allowing operation on a
simple two wire bus. Three address inputs allow up to
eight devices to share a common two wire bus.
Xicor E
2
PROMs are designed and tested for applica-
tions requiring extended endurance. Inherent data re-
tention is greater than 100 years. The X24022 is avail-
able in eight pin DIP and SOIC packages.
•
•
•
•
•
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2.7V to 5.5V Power Supply
Low Power CMOS
—Active Current Less Than 1 mA
—Standby Current Less Than 50
µ
A
Internally Organized 256 x 8
Self Timed Write Cycle
—Typical Write Cycle Time of 5 ms
2 Wire Serial Interface
—Bidirectional Data Transfer Protocol
Four Byte Page Write Operation
—Minimizes Total Write Time Per Byte
High Reliability
—Endurance: 100,000 Cycles Per Byte
—Data Retention: 100 Years
FUNCTIONAL DIAGRAM
(8) VCC
(4) VSS
START CYCLE
(5) SDA
START
STOP
LOGIC
CONTROL
LOGIC
SLAVE ADDRESS
REGISTER
+COMPARATOR
XDEC
E
2
PROM
64 X 32
H.V. GENERATION
TIMING
& CONTROL
(6) SCL
(3) A2
(2) A1
(1) A0
LOAD
INC
WORD
ADDRESS
COUNTER
R/W
YDEC
8
CK
PIN
DOUT
ACK
3848 FHD F01
DATA REGISTER
DOUT
© Xicor, 1991 Patents Pending
3848-1
1
Characteristics subject to change without notice
