Out in Front: September 2, 1996
A 4-Mbit flash memory offers you the capability to perform simultaneous write, erase, and read operations. Sharp accomplished this feat by partitioning the memory into two 2-Mbit areas where operations can be executed independently. You can also erase both partitions simultaneously and in approximately half the time it takes to erase a standard 4-Mbit flash. This flash memory, called the LH28F040SU, includes 32 16-kbyte blocks, each of which can be erased (a minimum of 100,000 times) and locked independently. The device requires 5V on VPP for writes and erases and 3.3V on VCC for reads. The LH28F040SU has an access time of 150 nsec, comes in a 40-pin TSOP, and sells for $15 (sample quantities).
—by Markus Levy
Sharp Electronics Corp, Camas, WA. (800) 642-0261.