This X24012 device has been acquired by
IC MICROSYSTEMS from Xicor, Inc.
ICmic
IC MICROSYSTEMS
TM
1K
X24012
Serial E PROM
2
DESCRIPTION
128 x 8 Bit
FEATURES
•
2.7 to 5.5V Power Supply
•
Low Power CMOS
—Active Current Less Than 1 mA
—Standby Current Less Than 50
∝
A
•
Internally Organized 128 x 8
The X24012 is a CMOS 1024 bit serial E PROM,
internally organized as one 128 x 8 bank. The X24012
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 PROMs are designed and tested for applications
requiring extended endurance. Inherent data retention
is greater than 100 years. The X24012 is available in eight
pin DIP and SOIC packages.
2
2
•
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
—Data Retention: 100 Years
FUNCTIONAL DIAGRAM
(8) V
CC
(4) V
SS
START CYCLE
(5) SDA
H.V. GENERATION
TIMING
& CONTROL
START
STOP
LOGIC
CONTROL
LOGIC
SLAVE ADDRESS
REGISTER
(6) SCL
(3) A 2
(2) A 1
(1) A 0
+COMPARATOR
LOAD
INC
XDEC
E PROM
32 X 32
2
WORD
ADDRESS
COUNTER
R/W
YDEC
8
CK
PIN
DATA REGISTER
D
OUT
D
OUT
ACK
3847 FHD F01
© Xicor, 1991 Patents Pending
3847-1
1
Characteristics subject to change without notice