AT24C02-官方资料.pdf

Features • Write Protect Pin for Hardware Data Protection – Utilizes Different Array Protection Compared to the AT24C02/04/08/16 • Medium-voltage and Standard-voltage Operation – 5.0 (VCC = 4.5V to 5.5V) – 2.7 (VCC = 2.7V to 5.5V) • Internally Organized 256 x 8 (2K), 512 x 8 (4K), 1024 x 8 (8K) or 2048 x 8 (16K) • Two-wire Serial Interface • Schmitt Trigger, Filtered Inputs for Noise Suppression • Bidirectional Data Transfer Protocol • 400 kHz (2.7V, 5V) Clock Rate Two-wire Serial • 8-byte Page (2K), 16-byte Page (4K, 8K, 16K) Write Modes • Partial Page Writes Allowed EEPROM • Self-timed Write Cycle (5 ms Max) • High Reliability Extended – Endurance: One Million Write Cycles – Data Retention: 100 Years Temperature • Automotive Grade, Extended Temperature, and Lead-Free/Halogen-Free Devices Available • 8-lead PDIP, 8-lead JEDEC SOIC, and 8-lead TSSOP Packages 2K (256 x 8) Description 4K (512 x 8) The AT24C02A/04A/08A/16A provides 2048/4096/8192/16384 bits of serial electri- 8K (1024 x 8) cally erasable and programmable read-only memory (EEPROM) organized as 256/512/1024/2048 words of 8 bits each. The device is optimized for use in many 16K (2048 x 8) automotive applications where low-power and low-voltage operation are essential. The AT24C02A/04A/08A/16A is available in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, and 8-lead TSSOP packages and is accessed via a two-wire serial interface. In addition, the entire family is available in 2.7V (2.7V to 5.5V) version. AT2