AT93C86A 3-wire Serial EEPROM 16K (2,048 x 8 or 1,024 x 16) DATASHEET Features Low-voltage Operation V = 1.8V to 5.5V CC V = 2.7V to 5.5V CC User-selectable Internal Organization 16K: 2,048 x 8 or 1,024 x 16 3-wire Serial Interface Sequential Read Operation Schmitt Trigger, Filtered Inputs for Noise Suppression 2MHz Clock Rate (5V) Self-timed Write Cycle (10ms Max) High Reliability Endurance: 1,000,000 Write Cycles Data Retention: 100 Years 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN, and 8-lead PDIP Packages Die Sales: Wafer Form, Waffle Pack, and Bumped Wafers Description The Atmel AT93C86A provides 16,384 bits of Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) organized as 1,024 words of 16 bits each (when the ORG pin is connected to V ) and 2,048 words of 8 bits each CC (when the ORG pin is tied to ground). The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operations are essential. The AT93C86A is available in space-saving 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN, and 8-lead PDIP packages. The AT93C86A is enabled through the Chip Select pin (CS) and accessed via a 3-wire serial interface consisting of Data Input (DI), Data Output (DO), and Shift Clock (SK). Upon receiving a Read instruction at DI, the address is decoded, and the data is clocked out serially on the DO pin. The write cycle is completely self-timed, and no separate erase cycle is required before Write. The write cycle is only enabled when the part is in the Erase/Write Enable state. When CS is brought high following the initiation of a write cycle, the DO pin outputs the Ready/Busy status of the part. The AT93C86A operates from 1.8V to 5.5V or from 2.7V to 5.5V. Atmel-3408K-SEEPROM-AT93C86A-Datasheet 1220151. Pin Configurations and Pinouts Table 1-1. Pin Configurations 8-lead SOIC 8-lead TSSOP Pin Name Function (Top View) (Top View) CS Chip Select 1 8 CS V CS 1 V CC 8 CC SK 2 7 NC 2 7 SK NC SK Serial Data Clock 3 DI 6 ORG DI 3 6 ORG DO 4 5 GND DO 4 5 GND DI Serial Data Input DO Serial Data Output 8-pad UDFN 8-lead PDIP GND Ground (Top View) (Top View) V Power Supply CC CS V 1 8 CC 1 8 CS V CC SK NC 2 7 ORG Internal Organization 2 7 DI ORG SK NC 3 6 DO GND 4 5 3 6 NC No Connect DI ORG DO 4 5 GND 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 +150 C 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 . . . . . . . . . . . -1.00V to +7.00V 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 AT93C86A DATASHEET Atmel-3408K-SEEPROM-AT93C86A-Datasheet 122015