W29C020CP90N Datasheet PDF - Winbond Electronics

●GENERAL DESCRIPTION

●The W29C020C is a 2-megabit, 5-volt only CMOS flash memory organized as 256K x 8 bits. The device can be written (erased and programmed) in-system with a standard 5V power supply. A 12-volt VPP is not required. The unique cell architecture of the W29C020C results in fast write (erase/program) operations with extremely low current consumption compared to other comparable 5-volt flash memory products. The device can also be written (erased and programmed) by using standard EPROM programmers.

●FEATURES

●·  Single 5-volt write (erase and program) operations

●·  Fast page-write operations

●-  128 bytes per page

●-  Page write (erase/program) cycle: 10 mS (max.)

●-  Effective byte-write (erase/program) cycle time: 39 mS

●-  Optional software-protected data write

●·  Fast chip-erase operation: 50 mS

●·  Two 8 KB boot blocks with lockout

●·  Whole chip cycling: 10K (typ.)

●·  Read access time: 70/90/120 nS

●·  Twenty-year data retention

●·  Software and hardware data protection

●·  Low power consumption

●-  Active current: 25 mA (typ.)

●-  Standby current: 20 mA (typ.)

●·  Automatic write (erase/program) timing with internal VPP generation

●·  End of write (erase/program) detection

●-  Toggle bit

●-  Data polling

●·  Latched address and data

●·  All inputs and outputs directly TTL compatible

●·  JEDEC standard byte-wide pinouts

●·  Available packages: 32-pin 600 mil DIP, 32-pin TSOP, and 32-pin PLCC