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Description:

W29C020CP-90Z - 256K X 8 CMOS FLASH MEMORY - Winbond
2.The device can also be program

W29C020CP-90Z- 256K X 8 CMOS FLASH MEMORY - Winbond (RAM,ROM, E2PROM, Flash ROM) is FEATURES
Single 5-volt program and erase operations
Fast page-write operations -128bytes perpage
-Page program cycle:10mS(max)
-Effective byte-program cycle time:39uS
-Softwere-protected data write
Fast chip-erase opration:50mS
Read access time:70/90/120nS
Tenty-year data retention
Software and hardware data protection
Low power consumption
-Active current:25mA(typ)
-Standby current:20uA(typ.)
Automatic program timing with intermal Vpp generation
-End of proggram detection
-toggle bit
-Data polling
Latched address and data
TLL compatible I/O
JEDEC standard byte-wide pinouts
Available packages:32-pin 600 mil DIP, 32-pin TSOP, and 32-pinPLCC

The W29C020CP-90Z is a 2-megabit, 5-volt only CMOS flashmemory orgnized as 256K