Introduction

The EZ-USB NX2LP? (NX2LP) implements a USB 2.0 NAND Flash controller. This controller adheres to the Mass Storage Class Bulk-Only Transport Specification. The USB port of the NX2LP is connected to a host computer directly or via the downstream port of a USB hub. Host software issues commands and data to the NX2LP and receives status and data from the NX2LP using standard USB protocol.

The NX2LP supports industry leading 8-bit NAND Flash interfaces and both common NAND page sizes of 512 and 2k bytes. Eight chip enable pins allow the NX2LP to be connected to up to eight single- or four dual-device NAND Flash chips.

Certain NX2LP features are configurable, enabling the NX2LP to meet the needs of different designs’ requirements.

Features

? High (480-Mbps) or full (12-Mbps) speed USB support

? Both common NAND page sizes supported

— 512bytes –Up to 1Gbit Capacity

— 2K bytes –Up to 8Gbit Capacity

? 8 chip enable pins

— Up to 8 NAND Flash single-device chips

— Up to 4 NAND Flash dual-device chips

? Industry standard ECC NAND Flash correction

— 1-bit per 256 correction

— 2-bit error detection

? Industry standard (SmartMedia) page management for

wear leveling algorithm, bad block handling, and Physical

to Logical management.

? Supports 8-bit NAND Flash interfaces

? Supports 30ns, 50ns, 100ns NAND Flash timing

? Complies with USB Mass Storage Class Specification rev 1.0

? CY7C68024 complies with USB 2.0 Specification for Bus

Powered Devices (TID# 40460274)

? 43-mA Typical Active Current

? Space-saving and lead-free 56-QFN package (8mm × 8mm)

? Support for board-level manufacturing test via USB interface

? 3.3V NAND Flash operation

? NAND Flash power management support