The SST29LE/VE512 are 64K x8 CMOS, Page-Write EEPROMs manufactured with SST's proprietary, highperformance CMOS SuperFlash technology. The splitgate cell design and thick-oxide tunneling injector attain better reliability and manufacturability compared with alternate approaches. The SST29LE/VE512 write with a single power supply. Internal Erase/Program is transparent to the user. The SST29LE/VE512 conform to JEDEC standard pinouts for byte-wide memories. Featuring high performance Page-Write, the SST29LE/ VE512 provide a typical Byte-Write time of 39 sec. The entire memory, i.e., 64 Kbyte, can be written page-bypage in as little as 2.5 seconds, when using interface features such as Toggle Bit or Data# Polling to indicate the completion of a Write cycle. To protect against inadvertent write, the SST29LE/VE512 have on-chip hardware and Software Data Protection schemes. Designed, manufactured, and tested for a wide spectrum of applications, the SST29LE/VE512 are offered with a guaranteed Page-Write endurance of 10,000 cycles. Data retention is rated at greater than 100 years.