W29C040-90Z Winbond Electronics, W29C040-90Z Datasheet - Page 9
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W29C040-90Z
Manufacturer Part Number
W29C040-90Z
Description
Manufacturer
Winbond Electronics
Datasheet
1.W29C040-90Z.pdf
(28 pages)
Specifications of W29C040-90Z
Density
4Mb
Access Time (max)
90ns
Interface Type
Parallel
Boot Type
Bottom/Top
Address Bus
19b
Operating Supply Voltage (typ)
5V
Operating Temp Range
0C to 70C
Package Type
PDIP
Program/erase Volt (typ)
4.5 to 5.5V
Sync/async
Asynchronous
Operating Temperature Classification
Commercial
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Word Size
8b
Number Of Words
512K
Supply Current
50mA
Mounting
Through Hole
Pin Count
32
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
W29C040-90Z
Manufacturer:
WINBOND
Quantity:
5 300
Company:
Part Number:
W29C040-90Z
Manufacturer:
WINBOND
Quantity:
1
Part Number:
W29C040-90Z
Manufacturer:
WINBOND/华邦
Quantity:
20 000
7.3
Software Chip Erase Acquisition Flow
Notes for software chip erase:
Data Format: DQ7 − DQ0 (Hex)
Address Format: A14 − A0 (Hex)
Command Codes for Software Chip Erase
BYTE SEQUENCE
0 Write
1 Write
2 Write
3 Write
4 Write
5 Write
W ait for 50 m S or
Load data AA
address 2AAA
address 2AAA
Load data AA
Load data 55
address 5555
address 5555
address 5555
address 5555
Load data 80
Load data 55
Load data 10
toggle/polling
ADDRESS
completed
2AAAH
2AAAH
5555H
5555H
5555H
5555H
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Publication Release Date: Aug. 14, 2006
DATA
AAH
AAH
55H
80H
55H
10H
W29C040
Revision A11