NAND Flash Memory Controller

The ML54051 is a controller that integrates into a single chip a host interface that conforms to PCMCIA, an interface to a buffer used for data transfer, the necessary functions to control NAND memory, and a microcontroller.
Internal 256 byte RAM is provided for storage of the card information structure (CIS). Also, 128KB of SRAM may be connected as a buffer for data transfer.
A maximum of 16 chips of 64 Mbit or larger NAND flash memory can be controlled when the chip is used as stand-alone. If a decoder circuit is externally added, a maximum of 64 chips can be controlled.

FEATURES
• Single chip controller with internal microcontroller (min. 4 cycles/instruction execution)
• Operating voltage: 3.3 V, Interface voltage: 3.3 V/5 V
• Internal 256B RAM for card information structure (CIS) storage
• Conforms to PC card standard - PC card ATA specification
• Auto-sleep mode support
• True IDE Mode support
• ECC system by BCH code (3-bit random error correction is possible for user data and ECC data)
• Substitute control function (defect management function)
• Debug mode support
• External buffer (128KB SRAM) control is possible
• High-speed operation via dual port bus control
• Low power consumption due to single chip controller
• Control of multiple NAND flash memories (64MB to 512MB) is possible
   Chip stand-alone : 16 pcs max.
   Chip and external decoder circuit : 64 pcs max.
• 144-pin LQFP package (LQFP144-P-2020-0.50-K)