AX24C128A Datasheet | AXElite

AX24C128A/256A 128K/256K-bit 2- WIRE SERIAL CMOS EEPROM General Description The AX24C128A/AX24C256A provides 131,072/262,144 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as16,384/32,768 words of 8 bits each. The device is optimized for use in many industrial and mercial applications where low-power and low-voltage operation are essential. The AX24C128A/AX24C256A is available in spacesaving SOP-8 and TSSOP-8 packages and is accessed via a two-wire serial interface. In addition, the AX24C128A/AX24C256A is available in 1.7V (1.7V to 5.5V) version. Features Wide Voltage Operation - VCC = 1.7V to 5.5V Operating Ambient Temperature: -40°C to +85°C Internally Organized: - AX24C128A, 16,384 X 8 (128K bits) - AX24C256A, 32,768 X 8 (256K bits) Two-wire Serial Interface Schmitt Trigger, Filtered Inputs for Noise Suppression Bidirectional Data Transfer Protocol 1MHz (5V), 400 KHz (1.7V, 2.5V, 2.7V) patibility Write Protect Pin for Hardware Data Protection 64-byte Page (128K, 256K) Write Modes Partial Page Writes Allowed Self-timed Write Cycle (5 ms max) High-reliability - Endurance: 1 Million Write Cycles - Data Retention: 100 Years SOP-8 and TSSOP-8 packages Pin Configuration VÛmw`R- yÑb€ SOP-8 TSSOP-8 w.goftech. Pin Configuration Pin Name A0 - A2 SDA SCL WP GND VCC Type I I/O & Open-drain I I P P Functions Address Inputs Serial Data Serial Clock Input Write Protect Ground Power Supply 1/14 Axelite Confidential Materials, do not copy or distribute without written consent. Rev.1.3 Mar.28 2012 AX24C128A/256A Block Diagram yb Vm w‘ R ww w.go ch fote .co m 2/14 Axelite Confidential Materials, do not copy or distribute without written consent. Rev.1.3 Mar.28 2012 AX24C128A/256A Pin Descriptions DEVICE/PAGE ADDRESSES (A2,A1 and A0): The A2,A1 and A0 pins are device address inputs that are hard wire for the AX24C128A/AX24C256A. Four 128K/256K devices may be addressed on a single bus system (device addressing is...