TM
This X24C01A device has been acquired by
IC MICROSYSTEMS from Xicor, Inc.
ICmic
128 x 8 Bit
IC MICROSYSTEMS
1K
X24C01A
Serial E2PROM
FEATURES
DESCRIPTION
The X24C01A is a CMOS 1024 bit serial E2PROM,
internally organized 128 x 8. The X24C01A features a
•2.7V to 5.5V Power Supply
•Low Power CMOS
—Active Current Less Than 1 mA
—Standby Current Less Than 50 µA
•Internally Organized 128 x 8
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.
•Self Timed Write Cycle
—Typical Write Cycle Time of 5 ms
Xicor E2PROMs are designed and tested for applications
requiring extended endurance. Inherent data retention
•2 Wire Serial Interface
is greater than 100 years. Available in an eight pin DIP and
SOIC package.
—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
•New Hardwire – Write Control Function
FUNCTIONAL DIAGRAM
(8)
(4)
V
V
CC
SS
(7) WC
H.V. GENERATION
START CYCLE
TIMING
& CONTROL
(5) SDA
START
STOP
LOGIC
CONTROL
LOGIC
SLAVE ADDRESS
REGISTER
2
E PROM
32x32
XDEC
LOAD
INC
(6) SCL
+COMPARATOR
(3) A
2
WORD
ADDRESS
COUNTER
(2) A
1
(1) A
0
R/W
YDEC
8
CK
D
OUT
PIN
DATA REGISTER
D
OUT
ACK
3841 FHD F01
© Xicor, 1991 Patents Pending
3841-1
Characteristics subject to change without notice
1