AT24C64D 2 I C-Compatible (2-Wire) Serial EEPROM 64-Kbit (8,192 x 8) DATASHEET Features Low-voltage and Standard-voltage Operation V = 1.7V to 5.5V CC Internally Organized as 8,192 x 8 (64K) 2 I C-compatible (2-Wire) Serial Interface Schmitt Trigger, Filtered Inputs for Noise Suppression Bidirectional Data Transfer Protocol 400kHz (1.7V) and 1MHz (2.5V, 2.7V, 5.0V) Compatibility Write Protect Pin for Hardware Protection 32-byte Page Write Mode Partial Page Writes Allowed Self-timed Write Cycle (5ms Max) High Reliability Endurance: 1,000,000 Write Cycles Data Retention: 100 Years Lead-free/Halogen-free Devices Available Green Package Options (Pb/Halide-free/RoHS Compliant) 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN, 8-pad XDFN, 8-ball VFBGA, and 4-ball/5-ball/6-ball WLCSP Packages Die Sale Options: Wafer Form, Waffle Pack, and Bumped Wafers Description The Atmel AT24C64D provides 65,536-bits of Serial Electrically Erasable and Programmable Read-Only Memory (EEPROM) organized as 8,192 words of 8 bits each. The devices cascading feature allows up to eight devices to share a common 2-wire bus. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The devices are available in space-saving 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN, 8-pad XDFN, 8-ball VFBGA, and 4-ball/5-ball/6-ball WLCSP packages. In addition, this device operates from 1.7V to 5.5V. Atmel-8850D-SEEPROM-AT24C64D-Datasheet 0520151. Pin Configurations and Pinouts Table 1-1. Pin Configuration 8-lead SOIC 8-lead TSSOP Pin Function A 1 8 V 0 CC 1 8 A V 0 CC A Address Input A 2 7 WP 2 7 0 1 A WP 1 A SCL 3 6 2 A 3 6 SCL 2 A Address Input GND SDA 4 5 1 GND 4 5 SDA A Address Input Top View Top View 2 GND Ground 8-pad UDFN/XDFN 8-ball VFBGA SDA Serial Data A 1 8 V 0 CC A 1 8 V 0 CC SCL Serial Clock Input A 2 7 WP 2 7 1 A WP 1 A 3 6 SCL WP Write Protect A 3 6 SCL 2 2 4 5 GND SDA GND 4 5 SDA V Device Power Supply CC Top View Top View Note: 1. For use of the 4-ball, 5-ball, and 6-ball (1) (1) (1) 4-ball WLCSP WLCSP packages, please refer to 6-ball WLCSP 5-ball WLCSP Section 7. Device Addressing on page 9 for details about setting the A2, A1, SDA SCL V GND CC V CC GND and A0 hardware address bits. GND WP SDA SCL SDA WP SCL A V 2 CC Top View Top View Top View Note: Drawings are not to scale 2. Absolute Maximum Ratings* *Notice: Stresses beyond those listed under Absolute Operating Temperature .-55C to +125C Maximum Ratings may cause permanent damage Storage Temperature . -65C to + 150C to the device. This is a stress rating only and functional operation of the device at these or any Voltage on any pin other conditions beyond those indicated in the with respect to ground .-1.0 V +7.0V operational sections of this specification are not implied. Exposure to absolute maximum rating Maximum Operating Voltage . 6.25V conditions for extended periods may affect device reliability. DC Output Current .5.0mA 2 AT24C64D DATASHEET Atmel-8850D-SEEPROM-AT24C64D-Datasheet 052015