32 Mbit (2mb X 16, Multiple Bank, Burst) 1.8v Supply Flash Memory

The M58WR032E is a 32 Mbit (2Mbit x16) non-vol- atile Flash memory that may be erased electrically at block level and programmed in-system on a Word-by-Word basis using a 1.65V to 2.2V VDD supply for the circuitry and a 1.65V to 3.3V VDDQ supply for the Input/Output pins. An optional 12V VPP power supply is provided to speed up custom- er programming. The device features an asymmetrical block archi- tecture. M58WR032E has an array of 71 blocks, and is divided into 4 Mbit banks. There are 7 banks each containing 8 main blocks of 32 KWords, and one parameter bank containing 8 parameter blocks of 4 KWords and 7 main blocks of 32 KWords. The Multiple Bank Architecture allows Dual Operations, while programming or erasing in one bank, Read operations are possible in other banks. Only one bank at a time is allowed to be in Program or Erase mode. It is possible to perform burst reads that cross bank boundaries. The bank architecture is summarized in Table 2., and the memory maps are shown in Figure 4. The Param- eter Blocks are located at the top of the memory address space for the M58WR032ET and at the bottom for the M58WR032EB. By STMicroelectronics