A25L016-NU Ver la hoja de datos (PDF) - AMIC Technology
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A25L016-NU Datasheet PDF : 41 Pages
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A25L016 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 15h for
A25L032, 14h for A25L016.
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.
The device is first selected by driving Chip Select ( S ) Low.
The 8-bit instruction code is followd by 2 dummy bytes and
one byte address(A7~A0), each bit being latched-in on Serial
Data Input (DIO) during the rising edge of Serial Clock (C).
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 18. The Read
Electronic Manufacturer ID & Device ID (REMS) instruction is
terminated by driving Chip Select ( S ) High at any time during
data output.
When Chip Select ( S ) 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.
Table 7. Read Electronic Manufacturer ID & Device ID (REMS) Data-Out Sequence
Manufacture Identification
37h
Device Identification
14h
Figure 18. 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
Instruction
2 Dummy Bytes
DIO
15 14 13 3 2 1 0
MSB
High Impedance
DO
S
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
C
ADD(1)
DIO
76543 21 0
Manufacturer ID
Device ID
DO
76 5 4 3 2 1 0 76 5 4 3 2 1 0
MSB
MSB
Notes:
(1) ADD=00h will output the manufacturer ID first and ADD=01h will output device ID first
MSB
(April, 2008, Version 0.0)
25
AMIC Technology Corp.
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