W29EE512 Datasheet, PDF (8/22 Pages) Winbond – 64K X 8 CMOS FLASH MEMORY

W29EE512
Command Codes for Product Identification
BYTE
SEQUENCE
0 Write
1 Write
2 Write
3 Write
4 Write
5 Write
ALTERNATE SOFTWARE (5)
PRODUCT IDENTIFICATION
ENTRY
ADDRESS
DATA
5555H
2AAAH
5555H
-
-
-
AAH
55H
90H
-
-
-
Pause 10 µS
SOFTWARE PRODUCT
IDENTIFICATION ENTRY
ADDRESS
DATA
5555H
2AAAH
5555H
5555H
2AAAH
5555H
AAH
55H
80H
AAH
55H
60H
Pause 10 µS
SOFTWARE PRODUCT
IDENTIFICATION EXIT
ADDRESS
DATA
5555H
2AAAH
5555H
-
-
-
AAH
55H
F0H
-
-
-
Pause 10 µS
Software Product Identification Acquisition Flow
Product Identification Entry (1) Product Identification Mode (2,3) Product Identification Exit (1)
Load data AA
to
address 5555
Load data 55
to
address 2AAA
Load data AA
to
address 5555
Load data 80
to
address 5555
Read address = 0
data = DA
Load data 55
to
address 2AAA
Load data AA
to
address 5555
Load data FO
to
address 5555
Load data 55
to
address 2AAA
Load data 60
to
address 5555
Read address = 1
data = C8
Pause 10 µS
(4)
Normal Mode
Pause 10 µS
Notes for software product identification:
(1) Data format: DQ7 − DQ0 (Hex); address format: A14 − A0 (Hex).
(2) A1 − A16 = VIL; manufacture code is read for A0 = VIL; device code is read for A0 = VIH.
(3) The device does not remain in identification mode if power down.
(4) The device returns to standard operation mode.
(5) This product supports both the JEDEC standard 3 byte command code sequence and original 6 byte command code
sequence. For new designs, Winbond recommends that the 3 byte command code sequence be used.
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