EC93C56A,EC93C66A-Three-wire Serial EEPROM

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.


lLow-voltage Operation
– 1.7V (VCC = 1.7V to 5.5V)

lThree-wire Serial Interface

lSequential Read Operation

l2 MHz Clock Rate (5V) Compatibility

lSelf-timed Write Cycle (5 ms max)

– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years

lPDIP-8, SOP-8, TSSOP-8, MSOP-8  and  DFN-8 packages.


Pin Configurations

Ordering info