AT45DB011D-MU ATMEL [ATMEL Corporation], AT45DB011D-MU Datasheet - Page 26

• Manufacturer Part Number: AT45DB011D-MU
• Description: 1-megabit 2.7-volt DataFlash
• Manufacturer: ATMEL [ATMEL Corporation]

14.1
14.1.1
14.1.2
14.1.3
14.1.4
Note:
26
Value
Value
Value
Value
Hex
1FH
Hex
24H
Hex
00H
Hex
00H
CS
SO
SI
Manufacturer and Device ID Information
Based on JEDEC publication 106 (JEP106), Manufacturer ID data can be comprised of any number of bytes. Some manufacturers may have
Manufacturer ID codes that are two, three or even four bytes long with the first byte(s) in the sequence being 7FH. A system should detect code
7FH as a “Continuation Code” and continue to read Manufacturer ID bytes. The first non-7FH byte would signify the last byte of Manufacturer ID
data. For Atmel (and some other manufacturers), the Manufacturer ID data is comprised of only one byte.
Bit 7
Bit 7
Bit 7
Bit 7
AT45DB011D [Preliminary]
Byte 1 – Manufacturer ID
Byte 2 – Device ID (Part 1)
Byte 3 – Device ID (Part 2)
Byte 4 – Extended Device Information String Length
Each transition
represents 8 bits
0
0
0
0
Family Code
MLC Code
Bit 6
Bit 6
Bit 6
Bit 6
0
0
0
0
Opcode
9FH
Bit 5
Bit 5
Bit 5
Bit 5
0
1
0
0
JEDEC Assigned Code
Manufacturer ID
Bit 4
Bit 4
Bit 4
Bit 4
Byte Count
1
0
0
0
Byte n
1FH
Product Version Code
Bit 3
Bit 3
Bit 3
Bit 3
1
0
0
0
Density Code
Bit 2
Bit 2
Bit 2
Bit 2
Device ID
1
0
0
0
Byte 1
22H
Bit 1
Bit 1
Bit 1
Bit 1
1
1
0
0
Bit 0
Bit 0
Bit 0
Bit 0
Device ID
1
0
0
0
Byte 2
00H
String Length
Information
Extended
Manufacturer ID
Family Code
Density Code
MLC Code
Product Version
Byte Count
Device
00H
if the Extended Device Information String Length
This information would only be output
value was something other than 00H.
Information
Extended
Device
Byte x
Data
1FH = Atmel
00010 = 1-Mbit
00000 = Initial Version
00H = 0 Bytes of Information
001 = DataFlash
000 = 1-bit/Cell Technology
Information
Byte x + 1
Extended
Device
Data
3639B–DFLASH–02/07