Features
• Low-voltage and Standard-voltage Operation
– 2.7 (VCC = 2.7V to 5.5V) – 1.8 (VCC = 1.8V to 3.6V) • Internally...
Features
Low-
voltage and Standard-
voltage Operation
– 2.7 (VCC = 2.7V to 5.5V) – 1.8 (VCC = 1.8V to 3.6V) Internally Organized 16,384 x 8 and 32,768 x 8 Two-wire Serial Interface Schmitt Trigger, Filtered Inputs for Noise Suppression Bidirectional Data Transfer Protocol 1 MHz (5V), 400 kHz (2.7V, 2.5V) and 100 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 Extended Temperature and Lead-free/Halogen-free
Devices Available 8-lead JEDEC PDIP, 8-lead JEDEC and EIAJ SOIC, 8-lead MAP, 8-lead TSSOP, 8-lead
SAP and 8-ball dBGA2 Packages Die Sales: Wafer Form, Waffle Pack, and Bumped Wafers
Two-wire Serial EEPROMs
128K (16,384 x 8)
256K (32,768 x 8)
Description
The AT24C128/256 provides 131,072/262,144 bits of serial electrically erasable and
programmable read only memory (EEPROM) organized as 16,384/32,768 words of 8
bits each. The device’s cascadable feature allows up to 4 devices to share a common
Two-wire bus. The device is optimized for use in many industrial and commercial appli-
cations 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 EIAJ
SOIC, 8-lead MAP (24C128), 8-lead TSSOP, 8-lead SOIC Array Package and 8-ball
dBGA2 packages. In addition, ...