GENERAL DESCRIPTION
The W29C512A 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 W29C512A 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: 90 nS
· Typical page program/erase cycles: 1K (typ.)
· 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 and TSOP