AT93C56A_08 Datasheet, PDF (3/21 Pages) ATMEL Corporation – Three-wire Serial EEPROM 2K (256 x 8 or 128 x 16) 4K (512 x 8 or 256 x 16)

Figure 3-1. Block Diagram
AT93C56A/66A
Note:
When the ORG pin is connected to VCC, the x 16 organization is selected. When it is connected to ground, the x 8 organization
is selected. If the ORG pin is left unconnected and the application does not load the input beyond the capability of the internal 1
Meg ohm pullup, then the x 16 organization is selected.
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3378M–SEEPR–7/08