General Description

The EC24C128A/EC24C256A 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 commercial applications where low-power and low-voltage operation are essential.

The EC24C128A/EC24C256A is available in space-saving PDIP-8,SOP-8, MSOP-8 and TSSOP-8 packages and is accessed via a twowire serial interface.

Features

◆ Wide Voltage Operation
VCC = 1.7V to 5.5V
◆ Operating Ambient Temperature: -40°C to +85°C
◆ Internally Organized:
EC24C128A, 16,384 X 8 (128K bits)
EC24C256A, 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) Compatibility
◆ 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
◆ PDIP-8 ,SOP-8,MSOP-8 and TSSOP-8 packages