SST25VF032B Silicon Storage Technology, Inc., SST25VF032B Datasheet - Page 20

• Manufacturer Part Number: SST25VF032B
• Description: 32 Mbit Spi Serial Flash
• Manufacturer: Silicon Storage Technology, Inc.

Advance Information
JEDEC Read-ID
The JEDEC Read-ID instruction identifies the device as
SST25VF032B and the manufacturer as SST. The device
information can be read from executing the 8-bit command,
9FH. Following the JEDEC Read-ID instruction, the 8-bit
manufacturer’s ID, BFH, is output from the device. After
that, a 24-bit device ID is shifted out on the SO pin. Byte 1,
TABLE 7: JEDEC Read-ID Data
©2008 Silicon Storage Technology, Inc.
Manufacturer’s ID
FIGURE 22: JEDEC Read-ID Sequence
Byte1
BFH
SCK
CE#
SO
SI
HIGH IMPEDANCE
MODE 3
MODE 0
Memory Type
Byte 2
0 1 2 3 4 5 6 7 8
25H
9F
Device ID
Memory Capacity
MSB
Byte 3
4AH
9 10 11 12 13
T7.0 1327
BF
14
20
15 16
MSB
BFH, identifies the manufacturer as SST. Byte 2, 25H, iden-
tifies the memory type as SPI Serial Flash. Byte 3, 4AH,
identifies the device as SST25VF032B. The instruction
sequence is shown in Figure 22. The JEDEC Read ID
instruction is terminated by a low to high transition on CE#
at any time during data output.
17 18
19 20 21 22 23
25
24 25 26 27
32 Mbit SPI Serial Flash
4A
28 29 30 31
SST25VF032B
32
1327 F22.0
S71327-01-000
33
34
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