A25LQ080 Series
Read Electronic Manufacturer ID & Device ID (REMS)
The Read Electronic Manufacturer ID & Device ID (REMS)
instruction allows the 8-bit manufacturer identification code to
be read, followed by one byte of device identification. The
manufacturer identification is assigned by JEDEC, and has
the value 37h for AMIC. The device identification is assigned
by the device manufacturer, and has the value 13h for
A25LQ080.
If the one-byte address is set to 01h, then the device ID will
be read first and then followed by the Manufacturer ID. On
the other hand, if the one-byte address is set to 00h, then the
Manufacturer ID will be read first and then followed by the
device ID.
The instruction sequence is shown in Figure 24. The Read
Electronic Manufacturer ID & Device ID (REMS) instruction is
Any Read Electronic Manufacturer ID & Device ID (REMS)
instruction while an Erase, or Program cycle is in progress, is
not decoded, and has no effect on the cycle that is in
progress.
S
terminated by driving Chip Select ( ) High at any time during
data output.
S
When Chip Select ( ) is driven High, the device is put in the
Stand-by Power mode. Once in the Stand-by Power mode,
the device waits to be selected, so that it can receive, decode
and execute instructions.
S
The device is first selected by driving Chip Select ( ) Low.
The 8-bit instruction code is followed by 2 dummy bytes and
one byte address (A7~A0), each bit being latched-in on Serial
Data Input (DI) during the rising edge of Serial Clock (C).
Table 7. Read Electronic Manufacturer ID & Device ID (REMS) Data-Out Sequence
Manufacture Identification
Device Identification
37h
13h (A25LQ080)
Figure 24. Read Electronic Manufacturer ID & Device ID (REMS) Instruction Sequence and Data-Out Sequence
S
0
1
2
3
4
5
6
7 8 9 10
20 21 22 23
C
DI
Instruction (90h)
2 Dummy Bytes
13 2 1
0
15
14
3
MSB
High Impedance
DO
S
C
24 25 26 27 28 29 30 31 32
ADD(1)
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
7
6
5
4
3
2
0
1
DI
Manufacturer ID
Device ID
0
1
2
5
4
1
5
4
DO
6
3
2
0
6
7
3
7
MSB
MSB
MSB
Notes:
(1) ADD=00h will output the manufacturer ID first and ADD=01h will output device ID first
(April, 2016, Version 1.0)
34
AMIC Technology Corp.
AMICC [ AMIC TECHNOLOGY ]
