
This X24C01A device has been acquired by
IC MICROSYSTEMS from Xicor, Inc.
1
DESCRIPTION
The X24C01A is a CMOS 1024 bit serial E
2
PROM,
internally organized 128 x 8. The X24C01A 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 applications
requiring extended endurance. Inherent data retention
is greater than 100 years. Available in an eight pin DIP and
SOIC package.
FEATURES
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
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
New Hardwire – Write Control Function
Xicor, 1991 Patents Pending
Characteristics subject to change without notice
1K
X24C01A
128 x 8 Bit
Serial E
2
PROM
FUNCTIONAL DIAGRAM
3841 FHD F01
START
STOP
LOGIC
CONTROL
LOGIC
SLAVE ADDRESS
REGISTER
+COMPARATOR
H.V. GENERATION
TIMING
& CONTROL
WORD
ADDRESS
COUNTER
XDEC
YDEC
DOUT
ACK
E
2
PROM
32x32
DATA REGISTER
START CYCLE
(8) V
CC
R/W
PIN
(4) V
SS
(5) SDA
(6) SCL
(3) A 2
(2) A 1
(1) A 0
DOUT
LOAD
INC
CK
8
(7) WC
3841-1
IC
mic
IC MICROSYSTEMS
TM