PC28F128M29EWHF Datasheet, PDF (34/87 Pages) Micron Technology – Parallel NOR Flash Embedded Memory

32Mb, 64Mb, 128Mb: 3V Embedded Parallel NOR Flash
READ and AUTO SELECT Operations
Auto select mode is exited by performing a reset. The device returns to read mode un-
less it entered auto select mode after an ERASE SUSPEND or PROGRAM SUSPEND
command, in which case it returns to erase or program suspend mode.
Table 18: Read Electronic Signature
Note 1 applies to entire table
Address Input
Data Input/Output
8-Bit/16-Bit
8-Bit
Only
8-Bit Only
16-Bit
Only
Read Cycle CE# OE# WE# A[MAX:11] A[10:4] A3 A2 A1 A0 A-1 DQ[14:8] DQ[7:0] DQ[15:0]
Manufacturer
LLH
X
code
L
LLLL
X
X
89h
0089h
Device code 1
LLH
X
L
L L LH X
X
7Eh
227Eh
Device 128Mb L L H
X
code 2 _64Mb
boot
L
HHH L
X
X
21h
2221h
10h
2210h
64Mb
uniform
0Ch
220Ch
32Mb
boot
1Ah
221Ah
32Mb
uniform
1Dh
221Dh
Device 128Mb L L H
X
code 3 uniform
L
HHHH X
X
01h
2201h
64Mb
uniform
64Mb
top
32Mb
top
Device 64Mb
LLH
X
code 3 bottom
L
HHHH X
X
00h
2200h
32Mb
bottom
32Mb
uniform
Note: 1. H = Logic level HIGH (V_IH); L = Logic level LOW (V_IL); X = HIGH or LOW.
PDF: 09005aef84dc44a7
m29ew_32Mb-128Mb.pdf - Rev. B 11/12 EN
34
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