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X24641

Part Number	X24641
Manufacturer	Xicor
Description	400 KHz 2-Wire Serial E 2 PROM
Published	Apr 16, 2005
Detailed Description	64K X24641 400 KHz 2-Wire Serial E2PROM 8K x 8 Bit FEATURES • • • • • • • • • • 1.8V to 3.6V, 2.5V to 5.5V and 4....
Datasheet	X24641 PDF File

Overview

64K X24641 400 KHz 2-Wire Serial E2PROM 8K x 8 Bit 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 operation 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) DATA REGISTER Y DECODE LOGIC COMMAND DECODE AND CONTROL LOGIC SCL PAGE DECODE LOGIC S2 S1 S0 DEVICE SELECT LOGIC WRITE PROTECT LOGIC E2PROM ARRAY 8K x 8 WP WRITE VOLTAGE CONTROL 7026 FM 01 ©Xicor, 1995, 1996 Patents Pending 7026 3/27/97 T0/C0/D0 SH 1 Characteristics subject to change without notice X24641 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 ...

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