Datasheet

©2011 Silicon Storage Technology, Inc. DS25044A 08/11
20
16 Mbit SPI Serial Flash
SST25VF016B
Data Sheet
A
Microchip Technology Company
JEDEC Read-ID
The JEDEC Read-ID instruction identifies the device as SST25VF016B 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 16-bit
device ID is shifted out on the SO pin. Byte 1, BFH, identifies the manufacturer as SST. 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 20. 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 20:JEDEC Read-ID Sequence
Table 6: JEDEC Read-ID Data
Manufacturer’s ID
Device ID
Memory Type Memory Capacity
Byte1 Byte 2 Byte 3
BFH 25H 41H
T6.0 25044
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