SUMMARY DESCRIPTION

The M50FW002 is a 2 Mbit (256Kb x8) non-volatile memory that can be read, erased and reprogrammed. These operations can be performed using a single low voltage (3.0 to 3.6V) supply. For fast programming and fast erasing in production lines an optional 12V power supply can be used to reduce the programming and the erasing times.

FEATURES SUMMARY

■ 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)

■ TWO INTERFACES

– Firmware Hub (FWH) Interface for embedded operation with PC Chipsets

– Address/Address Multiplexed (A/A Mux) Interface for programming equipment compatibility

■ FIRMWARE HUB (FWH) 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 33MHz PCI clock

– Multi-byte Read Operation (1-byte, 16-byte, 32-byte)

■ PROGRAMMING TIME

– 10 μs typical

– Quadruple Byte Programming Option

■ 7 MEMORY BLOCKS

– 1 Boot Block (Top Location)

– 4 Main Blocks and 2 Parameter Blocks

■ PROGRAM/ERASE CONTROLLER

– Embedded Byte Program, Block Erase and Chip Erase algorithms

– Status Register Bits

■ PROGRAM and ERASE SUSPEND

■ FOR USE in PC BIOS APPLICATIONS

■ ELECTRONIC SIGNATURE

– Manufacturer Code: 20h

– Device Code: 29h