M50LPW002

M50LPW002 2 Mbit (256Kb x8, Boot Block) 3V Supply Low Pin Count Flash Memory PRELIMINARY DATA FEATURES SUMMARY s SUPPLY VOLTAGE – VCC = 3 V to 3.6 V for Program, Erase and Read Operations – VPP = 12 V for Fast Program and Fast Erase (optional) s Figure 1. Packages TWO INTERFACES – Low Pin Count (LPC) Standard Interface for embedded operation with PC Chipsets. – Address/Address Multiplexed (A/A Mux) Interface for programming equipment compatibility. s LOW PIN COUNT (LPC) HARDWARE INTERFACE MODE – 5 Signal Communication Interface supporting Read and Write Operations – Hardware Write Protect Pins for Block Protection – Register Based Read and Write Protection – 5 Additional General Purpose Inputs for platform design flexibility – Synchronized with 33 MHz PCI clock PLCC32 (K) s PROGRAMMING TIME – 10 µs typical – Quadruple Byte Programming Option s ELECTRONIC SIGNATURE – Manufacturer Code: 20h – Device Code: 31h s 7 MEMORY BLOCKS – 1 Boot Block (Top Location) – 4 Main Blocks and 2 Parameter Blocks s PROGRAM/ERASE CONTROLLER – Embedded Byte Program, Block Erase and Chip Erase algorithms – Status Register Bits s PROGRAM and ERASE SUSPEND – Read other Blocks during Program/Erase Suspend – Program other Blocks during Erase Suspend FOR USE in PC BIOS APPLICATIONS s May 2002 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 1/39 M50LPW002 TABLE OF CONTENTS SUMMARY DESCRIPTION . . ...