AT93C86A
3-wire Serial EEPROM
16K (2,048 x 8 or 1,024 x 16)
DATASHEET
Features
Low-voltage Operation
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VCC = 1.8V to 5.5V
VCC = 2.7V to 5.5V
User-selectable Internal Organization
16K: 2,048 x 8 or 1,024 x 16
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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
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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
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 VCC) and 2,048 words of 8 bits each
(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-3408L-SEEPROM-AT93C86A-Datasheet_012017