AT25080B and AT25160B SPI Serial EEPROMs 8K (1,024 x 8) and 16K (2,048 x 8) DATASHEET Features Serial Peripheral Interface (SPI) Compatible Supports SPI Modes 0 (0,0) and 3 (1,1) Datasheet Describes Mode 0 Operation Low-voltage and Standard-voltage Operation 1.8 (V = 1.8V to 5.5V) CC 20MHz Clock Rate (5V) 32-byte Page Mode Block Write Protection Protect 1/4, 1/2, or Entire Array Write Protect (WP) Pin and Write Disable Instructions for Both Hardware and Software Data Protection Self-timed Write Cycle (5ms max) High Reliability Endurance: 1,000,000 Write Cycles Data Retention: 100 Years Green (Pb/Halide-free/RoHS Compliant) Packaging Options Die Sales: Wafer Form, Tape and Reel, and Bumped Wafers Description The Atmel AT25080B/160B provides 8,192/16,384 bits of Serial Electrically- Erasable Programmable Read-Only Memory (EEPROM) organized as 1,024/2,048 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 AT25080B/160B is available in space-saving 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN, 8-pad XDFN, 8-ball VFBGA, and 8-ball WLCSP packages. The AT25080B/160B is enabled through the Chip Select pin (CS) and accessed via a 3-wire interface consisting of Serial Data Input (SI), Serial Data Output (SO), and Serial Clock (SCK). All programming cycles are completely self-timed, and no separate erase cycle is required before write. Block Write protection is enabled by programming the status register with one of four blocks of write protection. Separate program enable and program disable instructions are provided for additional data protection. Hardware data protection is provided via the WP pin to protect against inadvertent write attempts to the status register. The HOLD pin may be used to suspend any serial communication without resetting the serial sequence. Atmel-5228G-SEEPROM-AT25080B-160B-Datasheet 0120151. Pin Configurations and Pinouts Table 1. Pin Configurations 8-lead TSSOP 8-lead SOIC (Top View) (Top View) Pin Name Function CS 1 8 V CS 1 8 VCC CC CS Chip Select SO 2 7 HOLD SO 2 7 HOLD WP 3 6 SCK WP 3 6 SCK GND Ground 4 5 GND SI GND 4 5 SI HOLD Suspends Serial Input SCK Serial Data Clock 8-ball VFBGA SO Serial Data Output 8-pad UDFN/XDFN (Top View) (Top View) SI Serial Data Input 1 8 CS V CC CS V 1 8 CC WP Write Protect SO HOLD 2 7 2 7 SO HOLD WP SCK 3 6 3 6 WP SCK V Power Supply CC GND SI 4 5 4 5 GND SI 8-ball WLSCP (Top View) GND SI WP SO SCK HOLD CS VCC Note: Drawings are not to scale. 2. Absolute Maximum Ratings* *Notice: Stresses beyond those listed under Absolute Operating Temperature .-55C to +125 C 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 -1.0V to +7.0V operational sections of this specification is 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 AT25080B/160B DATASHEET Atmel-5228G-SEEPROM-AT25080B-160B-Datasheet 012015