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Xicor
Xicor

X24042 Datasheet Preview

X24042 Datasheet

Serial E2PROM

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X24042 pdf
Preliminary Information
XP2in4074N2o Connect
4K
X24042
512 x 8 Bit
Serial E2PROM
TYPICAL FEATURES
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
8 Pin Mini-DlP and 8 Pin SOIC Packages
DESCRIPTION
The X24042 is a CMOS 4,096 bit serial E2PROM,
internally organized 512 x 8. The X24042 features a
serial interface and software protocol allowing operation
on a simple two wire bus.
The X24042 is fabricated with Xicor’s advanced CMOS
Textured Poly Floating Gate Technology.
The X24042 utilizes Xicor’s proprietary Direct WriteTM
cell providing a minimum endurance of 100,000 cycles
and a minimum data retention of 100 years.
FUNCTIONAL DIAGRAM
(8) VCC
(4) VSS
(5) SDA
START
STOP
LOGIC
START CYCLE
H.V. GENERATION
TIMING
& CONTROL
(6) SCL
(3) A2
(2) A1
(1) A0
SLAVE ADDRESS
REGISTER
+COMPARATOR
CONTROL
LOGIC
LOAD
INC
WORD
ADDRESS
COUNTER
R/W
DOUT
ACK
PIN
XDEC
E2PROM
32 X 128
YDEC
8
CK DATA REGISTER DOUT
3849 FHD F01
© Xicor, 1991 Patents Pending
3849-1
1 Characteristics subject to change without notice



Xicor
Xicor

X24042 Datasheet Preview

X24042 Datasheet

Serial E2PROM

No Preview Available !

X24042 pdf
X24042
PIN DESCRIPTIONS
Serial Clock (SCL)
The SCL input is used to clock all data into and out of the
device.
Serial Data (SDA)
SDA is a bidirectional pin used to transfer data into and
out of the device. It is an open drain output and may be
wire-ORed with any number of open drain or open
collector outputs.
An open drain output requires the use of a pull-up
resistor. For selecting typical values, refer to the Pull-Up
Resistor selection graph at the end of this data sheet.
Address (A0)
A0 is unused by the X24042, however, it must be tied to
VSS to insure proper device operation.
Address (A1, A2)
The Address inputs are used to set the appropriate bits
of the seven bit slave address. These inputs can be used
static or actively driven. If used statically they must be
tied to VSS or VCC as appropriate. If driven they must be
driven to VSS or to VCC.
PIN CONFIGURATION
A0
A1
A2
VSS
DIP/SOIC
18
27
X24042
36
45
VCC
NC
SCL
SDA
3849 FHD F02
PIN NAMES
Symbol
A0–A2
SDA
SCL
NC
VSS
VCC
Description
Address Inputs
Serial Data
Serial Clock
No Connect
Ground
Supply Voltage
3849 PGM T01
2


Part Number X24042
Description Serial E2PROM
Maker Xicor
Total Page 15 Pages
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