W29C020CP90B Winbond Electronics, W29C020CP90B Datasheet - Page 14

• Manufacturer Part Number: W29C020CP90B
• Description: IC FLASH 2MBIT 90NS 32PLCC
• Manufacturer: Winbond Electronics

Specifications of W29C020CP90B

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 2M (256K x 8)
• Speed: 90ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 32-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q1321111

Timing Waveforms, continued
#WE Controlled Write Cycle Timing Diagram
#CE Controlled Write Cycle Timing Diagram
Address A17-0
Address A17-0
DQ7-0
#WE
#CE
#OE
DQ7-0
#WE
#CE
#OE
High Z
T
AS
T
OES
T
T
T
AS
OES
CS
T
CS
T
AH
T
AH
T
WP
- 14 -
T
CP
Data Valid
Data Valid
T
T
DS
DS
T
T
T
CH
OEH
T
DH
T
T
WPH
DH
CH
T
T
OEH
WPH
Internal Write Starts
Internal write starts
T
W29C020C
WC
T
WC