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X24641S8I-1.8 fiches techniques PDF

Xicor - 400 KHz 2-Wire Serial E 2 PROM

Numéro de référence X24641S8I-1.8
Description 400 KHz 2-Wire Serial E 2 PROM
Fabricant Xicor 
Logo Xicor 





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X24641S8I-1.8 fiche technique
64K
X24641
8K x 8 Bit
400 KHz 2-Wire Serial E2PROM
FEATURES
1.8V to 3.6V, 2.5V to 5.5V and 4.5V to 5.5V
Power Supply Operation
Low Power CMOS
—Active Read Current Less Than 1mA
—Active Write Current Less Than 3mA
—Standby Current Less Than 1µA
400KHz Fast Mode 2-Wire Serial Interface
—Down to 1.8V
—Schmitt Trigger Input Noise Suppression
—Output Slope Control for Ground Bounce
Noise Elimination
Internally Organized 8K x 8
32 Byte Page Write Mode
—Minimizes Total Write Time Per Byte
Hardware Write Protect
Bidirectional Data Transfer Protocol
Self-Timed Write Cycle
—Typical Write Cycle Time of 5ms
High Reliability
—Endurance: 1,000,000 Cycles
—Data Retention: 100 Years
8-Lead SOIC
DESCRIPTION
The X24641 is a CMOS Serial E2PROM Memory,
internally organized 8K x 8. The device features a
serial interface and software protocol allowing opera-
tion on a simple two wire bus. The bus operates at
400KHz all the way down to 1.8V.
Three device select inputs (S0–S2) allow up to eight
devices to share a common two wire bus.
Hardware Write Protection is provided through a Write
Protect (WP) input pin on the X24641. When the WP
pin is HIGH, the upper quadrant of the Serial E2PROM
array is protected against any nonvolatile write
attempts.
Xicor Serial E2PROM Memories are designed and
tested for applications requiring extended endurance.
Inherent data retention is greater than 100 years.
FUNCTIONAL DIAGRAM
SERIAL E2PROM DATA
AND ADDRESS (SDA)
SCL
COMMAND
DECODE
AND
CONTROL
LOGIC
S2
DEVICE
S1 SELECT
LOGIC
S0
PAGE
DECODE
LOGIC
WRITE
PROTECT
LOGIC
DATA REGISTER
Y DECODE LOGIC
E2PROM
ARRAY
8K x 8
WRITE VOLTAGE
WP CONTROL
7026 FM 01
©Xicor, 1995, 1996 Patents Pending
7026 3/27/97 T0/C0/D0 SH
Characteristics subject to change without notice
1

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