AT24C256BW-SH-T

EEPROM Serial-2Wire 256Kbit 32K x 8 2.5V/3.3V/5V 8Pin SOIC EIAJ T/R

Description

The AT24C256B provides 262,144 bits of serial electrically erasable and programmable read-only memory EEPROM organized as 32,768 words of 8 bits each. The device’s cascadable feature allows up to eight devices to share a common two-wire bus. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The devices are available in space-saving 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin SAP, 8-lead TSSOP, and 8-ball dBGA2 packages. In addition, the entire family is available in a 1.8V 1.8V to 5.5V version.

Features

• Low-voltage and Standard-voltage Operation

   – 1.8 VCC = 1.8V to 5.5V

• Internally Organized as 32,768 x 8

• Two-wire Serial Interface

• Schmitt Trigger, Filtered Inputs for Noise Suppression

• Bidirectional Data Transfer Protocol

• 1 MHz 5.0V, 2.7V, 2.5V, and 400 kHz 1.8V Compatibility

• Write Protect Pin for Hardware and Software Data Protection

• 64-byte Page Write Mode Partial Page Writes Allowed

• Self-timed Write Cycle 5 ms Max

• High Reliability

   – Endurance: One Million Write Cycles

   – Data Retention: 40 Years

• Lead-free/Halogen-free Devices Available

• 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, EIAJ SOIC, 8-lead Ultra Thin Small Array Package SAP, 8-lead TSSOP, and 8-ball dBGA2 Packages

• Die Sales: Wafer Form, Waffle Pack and Bumped Wafers