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AT93C56B

ATMEL
Part Number AT93C56B
Manufacturer ATMEL
Description Three-wire Serial Electrically Erasable Programmable Read-only Memory
Published Nov 10, 2013
Detailed Description Features • Low-voltage and standard-voltage operation – VCC = 1.7V to 5.5V • User-selectable internal organization • • ...
Datasheet PDF File AT93C56B PDF File

AT93C56B
AT93C56B

Overview
Features • Low-voltage and standard-voltage operation – VCC = 1.
7V to 5.
5V • User-selectable internal organization • • • • • • – 2K: 256 x 8 or 128 x 16 – 4K: 512 x 8 or 256 x 16 Three-wire serial interface Sequential read operation 2MHz clock rate (5V) Self-timed write cycle (5ms max) High reliability – Endurance: One million write cycles – Data retention: 100 years 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead UDFN, 8-lead XDFN, and 8-ball VFBGA packages Three-wire Serial Electrically Erasable Programmable Read-only Memory 2K (256 x 8 or 128 x 16) 4K (512 x 8 or 256 x 16) Description The Atmel® AT93C56B/66B provides 2048/4096 bits of serial electrically erasable programmable read-only memory (EEPROM) organized as 128/256 words of 16 bits each (when the ORG pin is connected to VCC) and 256/512 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 AT93C56B/66B is available in space-saving 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead UDFN, 8-lead XDFN, and 8-ball VFBGA packages.
The AT93C56B/66B is enabled through the chip select pin (CS) and accessed via a three-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 data output pin, DO.
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 AT93C56B/66B operates from 1.
7V to 5.
5V.
8-lead SOIC 8-lead TSSOP VCC NC ORG GND CS SK DI DO 1 2 3 4 8 7 6 5 VCC NC ORG GND Atmel AT93C56B Atmel AT93C66B Figure 0-1.
Pin Name CS SK DI DO GND VCC ORG NC Pin Configurations Function Chip Select Serial Data C...


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