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
