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24C256

ETC
Part Number 24C256
Manufacturer ETC
Description 262/144-bit 2-WIRE SERIAL CMOS EEPROM
Published Mar 23, 2005
Detailed Description IS24C256 262,144-bit 2-WIRE SERIAL CMOS EEPROM DESCRIPTION FEATURES • Organization: – 32K-bit x 8-bit • 64-Byte Page Wri...
Datasheet PDF File 24C256 PDF File

24C256
24C256

Overview
IS24C256 262,144-bit 2-WIRE SERIAL CMOS EEPROM DESCRIPTION FEATURES • Organization: – 32K-bit x 8-bit • 64-Byte Page Write Buffer • Two-Wire Serial Interface – Bi-directional data transfer protocol • Low Power CMOS Technology – Active Current less than 3 mA (5V) – Standby Current less than 6 µA (5V) – Standby Current less than 2 µA (2.
5V) • Wide Voltage Operation – IS24C256-2: Vcc = 1.
8V to 5.
5V – IS24C256-3: Vcc = 2.
5V to 5.
5V • 1 MHz (I2CTM Protocol) Compatibility • Hardware Data Protection – Write Protect pin • Sequential Read Feature • Filtered Inputs for Noise Suppression • Self time Write cycle with auto clear – 5 ms @ 5.
0V • High Reliability – Endurance: 100,000 Cycles – Data Retention: 40 Years • Commercial and Industrial temperature ranges • 8-pin PDIP, 8-pin SOIC, and 14-pin TSSOP ISSI ® ADVANCED INFORMATION MARCH 2003 The IS24C256 is an electrically erasable PROM device that uses the standard 2-wire interface for communications.
The IS24C256 contains a memory array of 256K-bits (32,768 x 8), and is further subdivided into 512 pages of 64 bytes each for PageWrite mode.
This EEPROM is offered in wide operating voltages of 1.
8V to 5.
5V (IS24C256-2) and 2.
5V to 5.
5V (IS24C256-3) to be compatible with most application voltages.
ISSI designed the IS24C256 to be a low-cost and low-power 2-wire EEPROM solution.
The devices are packaged in 8-pin PDIP, 8-pin SOIC, and 14-pin TSSOP.
The IS24C256 maintains compatibility with the popular 2-wire bus protocol, so it is easy to design into applications implementing this bus type.
The simple bus consists of the Serial Clock wire (SCL) and the Serial Data wire (SDA).
Using the bus, a Master device such as a microcontroller is usually connected to one or more Slave devices such as the IS24C256.
The bit stream over the SDA line includes a series of bytes, which identifies a particular Slave device, an instruction, an address within that Slave device, and a series of data, if appropriate.
The IS24C256 has a Write Protect ...


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