TM
This X24012 device has been acquired by
IC MICROSYSTEMS from Xicor, Inc.
ICmic
128 x 8 Bit
IC MICROSYSTEMS
1K
X24012
Serial E2PROM
FEATURES
DESCRIPTION
The X24012 is a CMOS 1024 bit serial E2PROM,
internally organized as one 128 x 8 bank. The X24012
•2.7 to 5.5V Power Supply
•Low Power CMOS
—Active Current Less Than 1 mA
features a serial interface and software protocol allowing
operation on a simple two wire bus. Three address
—Standby Current Less Than 50 ∝A
•Internally Organized 128 x 8
•Self Timed Write Cycle
—Typical Write Cycle Time of 5 ms
inputs allow up to eight devices to share a common two wire
bus.
Xicor E2PROMs are designed and tested for applications
requiring extended endurance. Inherent data retention
•2 Wire Serial Interface
—Bidirectional Data Transfer Protocol
•Four Byte Page Write Operation
—Minimizes Total Write Time Per Byte
•High Reliability
is greater than 100 years. The X24012 is available in eight
pin DIP and SOIC packages.
—Endurance: 100,000 Cycles
—Data Retention: 100 Years
FUNCTIONAL DIAGRAM
(8)
(4)
V
V
CC
SS
H.V. GENERATION
TIMING
START CYCLE
& CONTROL
(5) SDA
START
STOP
LOGIC
CONTROL
LOGIC
SLAVE ADDRESS
REGISTER
2
E PROM
32 X 32
XDEC
LOAD
WORD
INC
(6) SCL
(3) A
+COMPARATOR
2
ADDRESS
COUNTER
(2) A
(1) A
1
0
R/W
YDEC
8
CK
D
OUT
PIN
DATA REGISTER
D
OUT
ACK
3847 FHD F01
© Xicor, 1991 Patents Pending
3847-1
Characteristics subject to change without notice
1
ICMIC [ IC MICROSYSTEMS ]
