Within this group, the following series are distinguished:
- Parallel Flash memories - high speed non-volatile memories with parallel address and data buses, up to 100 K program/erase cycles, low power consumption and 20-year data retention.
It is a line of 3.3 V products which offer 16...32 Mb densities.
- Serial Flash memories - high speed non-volatile memories which use Serial Peripheral Interface (SPI) with dual output (X series) or quad output (Q series). They run with the clock frequency
up to 75 MHz (transfer rate of 150 Mbps) for X series and up to 80 MHz (transfer rate of 320 Mbps) for Q series. It is a line of 3.3 V products which offer 1...64 Mb densities and feature limited space, pins
and power consumption, up to 100 K program/erase cycles and 20-year data retention.