Preliminary Information
XP2in4074N2o Connect
4K
X24042
512 x 8 Bit
Serial E2PROM
TYPICAL FEATURES
DESCRIPTION
2
• 2.7V to 5.5V Power Supply
• Low Power CMOS
—Active Read Current Less Than 1 mA
—Active Write Current Less Than 3 mA
—Standby Current Less Than 50 µA
• Internally Organized 512 x 8
• 2 Wire Serial Interface
—Bidirectional Data Transfer Protocol
• Sixteen Byte Page Write Mode
—Minimizes Total Write Time Per Byte
• Self Timed Write Cycle
—Typical Write Cycle Time of 5 ms
• High Reliability
—Endurance: 100,000 Cycles
—Data Retention: 100 Years
The X24042 is a CMOS 4,096 bit serial E PROM,
internally organized 512 x 8. The X24042 features a
serialinterfaceandsoftwareprotocolallowingoperation
on a simple two wire bus.
The X24042 is fabricated with Xicor’s advanced CMOS
Textured Poly Floating Gate Technology.
TM
The X24042 utilizes Xicor’s proprietary Direct Write
cell providing a minimum endurance of 100,000 cycles
and a minimum data retention of 100 years.
• 8 Pin Mini-DlP and 8 Pin SOIC Packages
FUNCTIONAL DIAGRAM
(8) V
(4) V
CC
H.V. GENERATION
START CYCLE
SS
TIMING
& CONTROL
START
STOP
(5) SDA
LOGIC
CONTROL
LOGIC
SLAVE ADDRESS
REGISTER
+COMPARATOR
2
E PROM
32 X 128
XDEC
LOAD
WORD
INC
(6) SCL
(3) A
2
ADDRESS
COUNTER
(2) A
(1) A
1
0
R/W
YDEC
8
CK
D
OUT
PIN
DATA REGISTER
D
OUT
ACK
3849 FHD F01
© Xicor, 1991 Patents Pending
3849-1
Characteristics subject to change without notice
1