W28J321B

The W28J321B/T Flash memory chip is a high-density, cost-effective, nonvolatile, read/write storage device suited for a wide range of applications. It operates off of VDD = 2.7V to 3.6V, with V_PP of 2.7V to 3.6V or 11.7V to 12.3V. This low voltage operation capability enbales use in low power applications. The IC features a boot, parameter and main-blocked architecture, as well as low voltage and extended cycling. These features provide a highly flexible device suitable for portable terminals and personal computers. Additionally, the enhanced suspend capabilities provide an ideal solution for both code and data storage applications. For secure code storage applications, such as networking where code is either directly executed out of flash or downloaded to DRAM, the device offers four levels of protection. These are: absolute protection, enabled when V_PP V_PPLK; selective hardware block locking; flexible software block locking; or write protection. These alternatives give designers comprehensive control over their code security needs. The device is manufactured using 0.25 m process technology. It comes in chip-size package: the 0.75 mm pitch 48-ball TFBGA, which makes it ideal for small real estate applications.