W49F002U-12B Winbond Electronics, W49F002U-12B Datasheet - Page 11

• Manufacturer Part Number: W49F002U-12B
• Manufacturer: Winbond Electronics

Specifications of W49F002U-12B

• Density: 2Mb
• Access Time (max): 120ns
• Interface Type: Parallel
• Boot Type: Top
• Address Bus: 18b
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: 0C to 70C
• Package Type: PDIP
• Program/erase Volt (typ): 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: 256K
• Supply Current: 50mA
• Mounting: Through Hole
• Pin Count: 32
• Lead Free Status / Rohs Status: Not Compliant

Embedded #Data Polling Algorithm
Embedded Toggle Bit Algorithm
Yes
No
Address = Don't Care
Address = VA
DQ6 = Toggle
(DQ0 - DQ7)
Read Byte
(DQ0 - DQ7)
DQ7 = Data
Read Byte
Start
Start
Pass
Pass
?
?
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Yes
No
Publication Release Date: February 21, 2002
VA = Byte address for programming
= Valid address equals any sector group
= Any of the sector addresses within
address during chip erase
the sector being erased during sector
erase operation
W49F002U
Revision A6