Datasheet

2015 Microchip Technology Inc. DS20005044C-page 17
SST25VF016B
4.4.15 JEDEC READ-ID
The JEDEC Read-ID instruction identifies the device as
SST25VF016B and the manufacturer as Microchip.
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 16-bit device ID is shifted
out on the SO pin. Byte 1, BFH, identifies the manufac-
turer as Microchip. Byte 2, 25H, identifies the memory
type as SPI Serial Flash. Byte 3, 41H, identifies the
device as SST25VF016B. The instruction sequence is
shown in Figure 4-18. The JEDEC Read ID instruction
is terminated by a low to high transition on CE# at any
time during data output. If no other command is issued
after executing the JEDEC Read-ID instruction, issue a
00H (NOP) command before going into Standby Mode
(CE#=V
IH
).
FIGURE 4-18: JEDEC READ-ID SEQUENCE
TABLE 4-5: JEDEC READ-ID DATA
Manufacturer’s ID
Device ID
Memory Type Memory Capacity
Byte1 Byte 2 Byte 3
BFH 25H 41H
25 41
1271 JEDECID.1
CE#
SO
SI
SCK
012345678
HIGH IMPEDANCE
15 1614 28 29 30 31
BF
MODE 3
MODE 0
MSBMSB
9 10111213 1718 32 34
9F
19 20 21 22 23 3324 25 26 27