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Xicor

X24C02 Datasheet Preview

X24C02 Datasheet

Serial E2PROM

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XPr2e4liCm0in2ary Information
2K
X24C02
Serial E2PROM
256 x 8 Bit
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 256 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
DESCRIPTION
The X24C02 is CMOS a 2048 bit serial E2PROM,
internally organized 256 x 8. The X24C02 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 E2PROMs are designed and tested for applica-
tions requiring extended endurance. Inherent data
retention is greater than 100 years. Available in DIP,
MSOP and SOIC packages.
FUNCTIONAL DIAGRAM
(8) VCC
(4) VSS
(7) WC
(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
64 X 32
YDEC
8
CK DATA REGISTER DOUT
3838 FHD F01
© Xicor, 1991 Patents Pending
3838-1.2 7/30/96 T0/C3/D1 SH
1 Characteristics subject to change without notice




Xicor

X24C02 Datasheet Preview

X24C02 Datasheet

Serial E2PROM

No Preview Available !

X24C02
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 Guide-
lines for Calculating Typical Values of Bus Pull-Up
Resistors graph.
Address (A0, A1, A2)
The address inputs are used to set the least significant
three bits of the seven bit slave address. These inputs
can be static or actively driven. If used statically they
must be tied to VSS or VCC as appropriate. If actively
driven, they must be driven to VSS or to VCC.
Write Control (WC)
The Write Control input controls the ability to write to the
device. When WC is LOW (tied to VSS) the X24C02 will
be enabled to perform write operations. When WC is
HIGH (tied to VCC) the internal high voltage circuitry will
be disabled and all writes will be disabled.
PIN CONFIGURATION
DIP/SOIC/MSOP
A0
A1
A2
VSS
18
27
X24C02
36
45
VCC
WC
SCL
SDA
3838 FHD F02
PIN DESCRIPTIONS
Symbol
A0–A2
SDA
SCL
WC
VSS
VCC
Description
Address Inputs
Serial Data
Serial Clock
Write Control
Ground
+5V
3838 PGM T01
2


Part Number X24C02
Description Serial E2PROM
Maker Xicor
Total Page 16 Pages
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