
Winbond
GENERAL DESCRIPTION
The W29EE512 is a 512K bit, 5-volt only CMOS flash memory organized as 64K ´ 8 bits. The device can be programmed and erased in-system with a standard 5V power supply. A 12-volt VPP is not required. The unique cell architecture of the W29EE512 results in fast program/erase operations with extremely low current consumption (compared to other comparable 5-volt flash memory products). The device can also be programmed and erased using standard EPROM programmers.
FEATURES
● Single 5-volt program and erase operations
● Fast page-write operations
- 128 bytes per page
- Page program cycle: 10 mS (max.)
- Effective byte-program cycle time: 39 mS
- Optional software-protected data write
● Fast chip-erase operation: 50 mS
● Read access time: 70/90/120 nS
● Typical page program/erase cycles: 1K/10K
● Ten-year data retention
● Software and hardware data protection
● Low power consumption
- Active current: 50 mA (max.)
- Standby current: 100 mA (max.)
● Automatic program timing with internal VPP generation
● End of program detection
- Toggle bit
- Data polling
● Latched address and data
● TTL compatible I/O
● JEDEC standard byte-wide pinouts
● Available packages: 32-pin PLCC, TSOP and VSOP