AT45D01SSHB1D--B View Datasheet(PDF) - Unspecified
Part Name
Description
MFG CO.
'AT45D01SSHB1D--B' PDF : 51 Pages View PDF
14.1 Manufacturer and Device ID Information
14.1.1 Byte 1 – Manufacturer ID
Hex
Value
1FH
Bit 7
0
Bit 6
0
JEDEC Assigned Code
Bit 5 Bit 4 Bit 3 Bit 2
0
1
1
1
Bit 1
1
Bit 0
1
14.1.2 Byte 2 – Device ID (Part 1)
Hex
Value
22H
Family Code
Bit 7 Bit 6 Bit 5
0
0
1
Bit 4
0
Density Code
Bit 3 Bit 2 Bit 1
0
0
1
Bit 0
0
14.1.3 Byte 3 – Device ID (Part 2)
Hex
Value
00H
MLC Code
Bit 7 Bit 6 Bit 5
0
0
0
Bit 4
0
Product Version Code
Bit 3 Bit 2 Bit 1
0
0
0
Bit 0
0
14.1.4 Byte 4 – Extended Device Information String Length
Hex
Value
00H
Bit 7
0
Bit 6
0
Bit 5
0
Byte Count
Bit 4 Bit 3
0
0
Bit 2
0
Bit 1
0
Bit 0
0
Manufacturer ID
Family Code
Density Code
MLC Code
Product Version
Byte Count
AT45DB011D
1FH = Adesto
001 = DataFlash
00010 = 1-Mbit
000 = 1-bit/Cell Technology
00000 = Initial Version
00H = 0 Bytes of Information
CS
Note:
SI
9FH
Opcode
SO
1FH
22H
Manufacturer ID Device ID
Byte n
Byte 1
Each transition
represents 8 bits
00H
Device ID
Byte 2
00H
Extended
Device
Information
String Length
Data
Extended
Device
Information
Byte x
Data
Extended
Device
Information
Byte x + 1
This information would only be output
if the Extended Device Information String Length
value was something other than 00H.
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 Adesto (and some other manufacturers), the Manufacturer ID data is comprised of only one byte.
25
3639M–DFLASH–11/2017
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