W49F002U-12B Winbond Electronics, W49F002U-12B Datasheet - Page 22

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W49F002U-12B

Manufacturer Part Number
W49F002U-12B
Description
Manufacturer
Winbond Electronics
Datasheet

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

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Timing Waveforms, continued
Sector Erase Timing Diagram
Reset Timing Diagram
Address A17-0
#RESET
VDD
DQ7-0
Address A17-0
DQ7-0
#WE
#CE
#OE
SA = Sector Address
5555
SB0
T
WP
AA
T
T
PRST
WPH
2AAA
SB1
Six-byte code for 5V-only software
55
Main Memory Erase
5555
SB2
80
- 22 -
5555
SB3
AA
T
RSTF
2AAA
SB4
T
RSTP
55
SA
SB5
30
T
Internal Erase starts
RST
T
EC
W49F002U

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