CY7C68023-56LTXC Просмотр технического описания (PDF) - Cypress Semiconductor
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CY7C68023-56LTXC Datasheet PDF : 10 Pages
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CY7C68023/CY7C68024
EZ-USB NX2LP™ USB 2.0 NAND Flash
Controller
EZ-USB NX2LP™ USB 2.0 NAND Flash Controller
Features
■ High (480-Mbps) or Full (12-Mbps) Speed USB Support
■ Both Common NAND Page Sizes Supported
❐ 512 bytes — Up to 1 Gbit Capacity
❐ 2K bytes — Up to 8 Gbit Capacity
■ Eight 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 30 ns, 50 ns, and 100 ns 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)
NX2LP Block Diagram
■ 43 mA Typical Active Current
■ Space Saving and Pb-free 56-QFN Package (8 mm × 8 mm)
■ Support for Board-level Manufacturing test through USB
Interface
■ 3.3 V NAND Flash Operation
■ NAND Flash Power Management Support
Introduction
The EZ-USB NX2LPNX2LPimplements 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 through 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 design requirements.
24 MHz
Xtal
Chip Reset
PLL
EZ-USB NX2LP
Internal Control Logic
Control
Write Protect
LED2#
LED1#
NAND Control Signals
VBUS
D+
D-
USB 2.0
Xceiver
Smart HS/
FS USB
Engine
Data
NAND Flash
Interface
Logic
Chip Enable Signals
8-bit Data Bus
Cypress Semiconductor Corporation • 198 Champion Court
Document #: 38-08055 Rev. *E
• San Jose, CA 95134-1709 • 408-943-2600
Revised March 29, 2011
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