EC93C56A/66A|Three-Wire Serial EEPROM

EC93C56A/66A|Three-Wire Serial EEPROM

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General description

The EC93C56A/66A 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 it is tied to ground.

The EC93C56A/66A is available in space-saving PDIP-8, SOP-8, TSSOP-8, MSOP-8, and DFN-8 packages.

The EC93C56A/66A 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 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 it 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.

Features

◆Low-voltage Operation -1.7V (VCC = 1.7V to 5.5V)
◆ Three-wire Serial Interface
◆ Sequential Read Operation
◆ 2 MHz Clock Rate (5V) Compatibility
◆ Self-timed Write Cycle (5 ms max)
◆ High-reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
◆ PDIP-8, SOP-8, TSSOP-8, MSOP-8 and DFN-8 packages.


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