EPCQ-A Serial Configuration Device Datasheet

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ID 683818
Date 10/01/2019
Public
Document Table of Contents

1.6. Memory Array Organization

Table 10.  Supported Memory Array Organization in EPCQ-A Devices
Details EPCQ4A EPCQ16A EPCQ32A EPCQ64A EPCQ128A
Bytes 524,288 bytes [4 megabits (Mb)] 2,097,152 bytes [16 Mb] 4,194,304 bytes (32 Mb) 8,388,608 bytes (64 Mb) 16,777,216 bytes (128 Mb)
Number of sectors 8 32 64 128 256
Bytes per sector 65,536 bytes [512 kilobits (Kb)]
Total numbers of subsectors 4 128 512 1,024 2,048 4,096
Bytes per subsector 4,096 bytes (32 Kb)
Pages per sector 256
Total number of pages 2,048 8,192 16,384 32,768 65,536
Bytes per page 256 bytes
4 Every sector is further divided into 16 subsectors with 4 KB of memory. Therefore, there are 128 (8 x 16) subsectors for the EPCQ4A device, 512 (32 x 16) subsectors for the EPCQ16A device, 1,024 (64 x 16) subsectors for the EPCQ32A device, 2,048 (128 x 16) subsectors for the EPCQ64A device, and 4,096 (256 x 16) subsectors for the EPCQ128A device.

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