SST25VF032B_11 Datasheet, PDF (20/31 Pages) Microchip Technology – 32 Mbit SPI Serial Flash

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32 Mbit SPI Serial Flash
SST25VF032B
Data Sheet
Read-ID (RDID)
The Read-ID instruction (RDID) identifies the device as SST25VF032B and manufacturer as SST. The
device information can be read from executing an 8-bit command, 90H or ABH, followed by address
bits [A₂₃-A₀]. Following the Read-ID instruction, the manufacturer’s ID is located in address 00000H
and the device ID is located in address 00001H. Once the device is in Read-ID mode, the manufac-
turer’s and device ID output data toggles between address 00000H and 00001H until terminated by a
low to high transition on CE#.
Refer to Tables 6 and 7 for device identification data.
CE#
MODE 3 0 1 2 3 4 5 6 7 8
SCK MODE 0
15 16
23 24 31 32 39 40 47 48 55 56 63
SI
90 or AB
00
00
ADD¹
MSB
MSB
HIGH
HIGH IMPEDANCE
SO
IMPEDANCE
BF Device ID BF Device ID
MSB
Note: The manufacturer s and device ID output stream is continuous until terminated by a low to high transition on CE#.
1. 00H will output the manfacturer s ID first and 01H will output device ID first before toggling between the two.
1327 F21.0
Figure 20:Read-ID Sequence
Table 6: Product Identification
Manufacturer’s ID
Device ID
SST25VF032B
Address
00000H
00001H
Data
BFH
4AH
T6.0 1327
©2011 Silicon Storage Technology, Inc.
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