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IS25LQ020B Datasheet(PDF) 10 Page - Integrated Silicon Solution, Inc

Part # IS25LQ020B
Description  3V QUAD SERIAL FLASH MEMORY WITH MULTI-I/O SPI
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Manufacturer  ISSI [Integrated Silicon Solution, Inc]
Direct Link  http://www.issi.com
Logo ISSI - Integrated Silicon Solution, Inc

IS25LQ020B Datasheet(HTML) 10 Page - Integrated Silicon Solution, Inc

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IS25LQ025/512/010/020/040B
Integrated Silicon Solution, Inc.- www.issi.com
Rev.A
12/12/2014
10
5. SYSTEM CONFIGURATION
The IS25LQ025/512/010/020/040B is designed to interface directly with the synchronous Serial Peripheral
Interface (SPI) microcontrollers or any SPI interface-equipped system controllers.
The memory array of IS25LQ025/512/010/020/040B is divided into uniform 4Kbyte sectors or uniform 32/64Kbyte
blocks (a block consists of eight/sixteen adjacent sectors respectively).
Table 5.1 and Table 5.2 illustrate the memory map of the device. The Status Register controls how the memory is
protected.
5.1 BLOCK/SECTOR ADDRESSES
Table 5.1 Block/Sector Addresses of IS25LQ025/512/010B
Memory Density
Block No.
(64Kbyte)
Block No.
(32Kbyte)
Sector No.
Sector
Size
(Kbyte)
Address Range
Block 0
Block 0
Sector 0
4
000000h - 000FFFh
Sector 1
4
001000h - 001FFFh
:
:
:
Sector 7
4
007000h - 007FFFh
Block 1
Sector 8
4
008000h - 008FFFh
Sector 9
4
009000h - 009FFFh
:
:
:
Sector 15
4
00F000h - 00FFFFh
Block 1
Block 2
Sector 16
4
010000h - 010FFFh
Sector 17
4
011000h - 011FFFh
:
:
:
Sector 23
4
017000h - 017FFFh
Block 3
Sector 24
4
018000h - 018FFFh
Sector 25
4
019000h - 019FFFh
:
:
:
Sector 31
4
01F000h
– 01FFFFh


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