W29C040-90Z Winbond Electronics, W29C040-90Z Datasheet - Page 21

• Manufacturer Part Number: W29C040-90Z
• Manufacturer: Winbond Electronics

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

W29C040
Page Write Timing Diagram Software Data Protection Mode
T
WC
Byte/page load
Three-byte sequence for
cycle starts
software data protection mode
Address A18-0
2AAA
5555
5555
DQ7-0
AA
55
A0
#CE
#OE
T
BLC
T
WP
T
#WE
WPH
Byte N
SW2
Byte 0
Byte N-1
SW0
SW1
(Last Byte)
Internal write starts
Publication Release Date: Aug. 14, 2006
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Revision A11