AT24C32D and AT24C64D 2 I C Automotive Temperature Serial EEPROM 32K (4,096 x 8), 64K (8,192 x 8) DATASHEET Features 2 2-Wire Serial Interface Compatible with I C Internally Organized 4,096 x 8 (32K), 8,192 x 8 (64K) Low-voltage, Medium-voltage, and High-voltage Operation Grade 1, V = 2.5V to 5.5V CC (1) Grade 2 and 3, V = 1.7V to 5.5V CC (1) Extended Temperature Range (Grade 1, 2 , and 3 as defined in AEC-Q100) Grade 1 Temperature Range: -40C to 125C (1) Grade 2 Temperature Range : -40 C to 105C Grade 3 Temperature Range: -40C to 85C Schmitt Trigger, Filtered Inputs for Noise Suppression Bidirectional Data Transfer Protocol 400kHz Compatibility Write Protect Pin for Hardware Data Protection 32-byte Page Write Modes Partial Page Writes are Allowed Self-timed Write Cycle (5ms max) High-reliability Endurance: 1,000,000 Write Cycles Data Retention: 100 Years 8-lead JEDEC SOIC, 8-lead TSSOP, and 8-pad UDFN Packages Note: 1. Contact Sales for Grade 2 Availability Description The Atmel AT24C32D/64D provides 32,768/65,536 bits of Serial Electrically Erasable and Programmable Read-Only Memory (EEPROM) organized as 4,096/8,192 words of 8 bits each. The device is optimized for use in many automotive applications where low-power and low-voltage operation are essential. AT24C32D/64D is available in space-saving 8-lead JEDEC SOIC, 8-lead TSSOP, and 8-pad UDFN packages and is accessed via a 2-wire serial interface. This (1) device operates from 2.5V to 5.5V (Grade 1) or 1.7V to 5.5V (Grades 2 and 3). Atmel-8800D-SEEPROM-AT24C32D-64D-Auto-Datasheet 092016Table of Contents 1. Pin Configurations and Pinouts . 3 2. Absolute Maximum Ratings* 3 3. Block Diagram 4 4. Pin Description . 5 5. Memory Organization . 6 5.1 Pin Capacitance . 6 5.2 DC Characteristics . 6 5.3 AC Characteristics . 7 6. Device Operation . 8 7. Device Addressing . 11 8. Write Operations . 12 9. Read Operations . 13 9.1 Power Recommendation 14 10. Ordering Information 15 10.1 Ordering Code Details 15 10.2 Ordering Code Information 16 10.2.1 Automotive Grade 1, V = 2.5V to 5.5V . 16 CC 10.2.2 Automotive Grade 3, V = 1.7V to 5.5V . 17 CC 10.3 Product Markings . 18 11. Packaging Information . 19 11.1 8S1 8-lead JEDEC SOIC . 19 11.2 8X 8-lead TSSOP . 20 11.3 8MA2 8-pad UDFN 21 12. Revision History . 22 2 AT24C32D/64D Automotive DATASHEET Atmel-8800D-SEEPROM-AT24C32D-64D-Auto-Datasheet 092016