SST25VF032B View Datasheet(PDF) - Silicon Storage Technology

Part Name

Description

Manufacturer

SST25VF032B

32 Mbit SPI Serial Flash

Silicon Storage Technology 

32 Mbit SPI Serial Flash

SST25VF032B

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,

Data Sheet

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 21. The JEDEC Read ID

instruction is terminated by a low to high transition on CE#

at any time during data output.

CE#

MODE 3 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

SCK MODE 0

SI

9F

HIGH IMPEDANCE

SO

BF

MSB

25

MSB

FIGURE 21: JEDEC Read-ID Sequence

TABLE 7: JEDEC Read-ID Data

Manufacturer’s ID

Device ID

Byte1

BFH

Memory Type

Byte 2

25H

Memory Capacity

Byte 3

4AH

T7.0 1327

4A

1327 F22.0

©2009 Silicon Storage Technology, Inc.

19

S71327-03-000

05/09

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