X24C01A Datasheet, PDF (1/13 Pages) Xicor Inc. – Serial E2PROM

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1K
X24C01A
128 x 8 Bit
Serial E²PROM
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
DESCRIPTION
The X24C01A is a CMOS 1024 bit serial E²PROM,
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 E²PROMs are designed and tested for applica-
tions requiring extended endurance. Inherent data re-
tention is greater than 100 years. Available in an eight
pin DIP and SOIC package.
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
PIN
DOUT
ACK
XDEC
E²PROM
32x32
YDEC
8
CK _{DATA REGISTER DOUT}
3841 FHD F01
© Xicor, 1991 Patents Pending
3841-1
1
Characteristics subject to change without notice