64 Mbit SPI Serial Dual I/O Flash
SST25VF064C
Data Sheet
JEDEC Read-ID
The JEDEC Read-ID instruction identifies the device as
SST25VF064C 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,
BFH, identifies the manufacturer as SST. Byte 2, 25H, iden-
tifies the memory type as SPI Serial Flash. Byte 3, 4BH,
identifies the device as SST25VF064C. 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.
CE#
MODE 3
MODE 0
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
SCK
SI
9F
HIGH IMPEDANCE
25
4B
BF
SO
MSB
MSB
1392 F22.0
FIGURE 22: JEDEC Read-ID Sequence
TABLE 9: JEDEC Read-ID Data
Manufacturer’s ID
Device ID
Memory Type Memory Capacity
Byte1
BFH
Byte 2
25H
Byte 3
4BH
T9.0 1392
©2010 Silicon Storage Technology, Inc.
S71392-04-000
04/10
22
SST [ SILICON STORAGE TECHNOLOGY, INC ]
