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SST25VF080B-50-4C-S2AF 데이터시트(PDF) 7 Page - Microchip Technology

부품명 SST25VF080B-50-4C-S2AF
상세설명  8 Mbit SPI Serial Flash
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
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 2015 Microchip Technology Inc.
DS20005045C-page 7
SST25VF080B
4.4
Instructions
Instructions are used to read, write (Erase and Pro-
gram), and configure the SST25VF080B. The instruc-
tion bus cycles are 8 bits each for commands (Op
Code), data, and addresses. Prior to executing any
Byte-Program, Auto Address Increment (AAI) program-
ming, Sector-Erase, Block-Erase, Write-Status-Regis-
ter, or Chip-Erase instructions, the Write-Enable
(WREN) instruction must be executed first. The com-
plete list of instructions is provided in Table 4-4. All
instructions are synchronized off a high to low transition
of CE#. Inputs will be accepted on the rising edge of
SCK starting with the most significant bit. CE# must be
driven low before an instruction is entered and must be
driven high after the last bit of the instruction has been
shifted in (except for Read, Read-ID, and Read-Status-
Register instructions). Any low to high transition on
CE#, before receiving the last bit of an instruction bus
cycle, will terminate the instruction in progress and
return the device to standby mode. Instruction com-
mands (Op Code), addresses, and data are all input
from the most significant bit (MSB) first.
TABLE 4-4:
DEVICE OPERATION INSTRUCTIONS
Instruction
Description
Op Code Cycle1
1. One bus cycle is eight clock periods.
Address
Cycle(s)2
2. Address bits above the most significant bit of each density can be VIL or VIH.
Dummy
Cycle(s)
Data
Cycle(s)
Read
Read Memory
0000 0011b (03H)
30
1 to
High-Speed Read
Read Memory at higher speed
0000 1011b (0BH)
31
1 to
4 KByte Sector-Erase3
3. 4KByte Sector Erase addresses: use AMS-A12, remaining addresses are don’t care but must be set either at VIL or VIH.
Erase 4 KByte of
memory array
0010 0000b (20H)
30
0
32 KByte Block-Erase4
4. 32KByte Block Erase addresses: use AMS-A15, remaining addresses are don’t care but must be set either at VIL or VIH.
Erase 32 KByte block
of memory array
0101 0010b (52H)
30
0
64 KByte Block-Erase5
5. 64KByte Block Erase addresses: use AMS-A16, remaining addresses are don’t care but must be set either at VIL or VIH.
Erase 64 KByte block
of memory array
1101 1000b (D8H)
30
0
Chip-Erase
Erase Full Memory Array
0110 0000b (60H) or
1100 0111b (C7H)
00
0
Byte-Program
To Program One Data Byte
0000 0010b (02H)
30
1
AAI-Word-Program6
6. To continue programming to the next sequential address location, enter the 8-bit command, ADH, followed by 2 bytes of data
to be programmed. Data Byte 0 will be programmed into the initial address [A23-A1] with A0=0, Data Byte 1 will be pro-
grammed into the
initial address [A23-A1] with A0=1.
Auto Address Increment
Programming
1010 1101b (ADH)
30
2 to
RDSR7
7. The Read-Status-Register is continuous with ongoing clock cycles until terminated by a low to high transition on CE#.
Read-Status-Register
0000 0101b (05H)
00
1 to
EWSR
Enable-Write-Status-Register
0101b 0000b (50H)
00
0
WRSR
Write-Status-Register
0000 0001b (01H)
00
1
WREN
Write-Enable
0000 0110b (06H)
00
0
WRDI
Write-Disable
0000 0100b (04H)
00
0
RDID8
8. Manufacturer’s ID is read with A0=0, and Device ID is read with A0=1. All other address bits are 00H. The Manufacturer’s ID
and device ID output stream is continuous until terminated by a low-to-high transition on CE#.
Read-ID
1001 0000b (90H) or
1010 1011b (ABH)
30
1 to
JEDEC-ID
JEDEC ID read
1001 1111b (9FH)
00
3 to
EBSY
Enable SO to output RY/BY#
status during AAI programming
0111 0000b (70H)
00
0
DBSY
Disable SO as RY/BY#
status during AAI programming
1000 0000b (80H)
00
0


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