Quad-Serial Configuration (EPCQ) Devices Datasheet

ID 683078
Date 1/23/2020
Public
Document Table of Contents

1.4. Memory Array Organization

Table 7.  Supported Memory Array Organization in EPCQ Devices
Details EPCQ16 EPCQ32 EPCQ64 EPCQ128 EPCQ256 EPCQ512/A
Bytes 2,097,152 bytes [16 megabits (Mb)] 4,194,304 bytes (32 Mb) 8,388,608 bytes (64 Mb) 16,777,216 bytes (128 Mb) 33,554,432 bytes (256 Mb) 67,108,864 bytes (512 Mb)
Number of sectors 32 64 128 256 512 1,024
Bytes per sector 65,536 bytes [512 kilobits (Kb)]
Total numbers of subsectors 8 512 1,024 2,048 4,096 8,192 16,384
Bytes per subsector 4,096 bytes (32 Kb)
Pages per sector 256
Total number of pages 8,192 16,384 32,768 65,536 131,072 262,144
Bytes per page 256 bytes
8 Every sector is further divided into 16 subsectors with 4 KB of memory. Therefore, there are 512 (32 x 16) subsectors for the EPCQ16 device, 1,024 (64 x 16) subsectors for the EPCQ32 device, 2,048 (128 x 16) subsectors for the EPCQ64 device, 4,096 (256 x 16) subsectors for the EPCQ128 device, 8,192 (512 x 16) subsectors for the EPCQ256 device, and 16,384 (1,024 x 16) subsectors for the EPCQ512/A device.