UTRON

UT8A102

Rev. 1.0

USB Flash Disk Controller

UTRON TECHNOLOGY INC.

P10003

1F, NO.11, R&D RD. II, SCIENCE-BASED INDUSTRIAL PARK, HSINCHU, TAIWAN, R.O.C.
TEL: 886-3-5777882 FAX: 886-3-5777919

Table of Contents

1.0 Introduction------------------------------------------------------------------- 2

1.1 Description--------------------------------------------------------------- 2

1.2 Features------------------------------------------------------------------- 2

2.0 Application

Block Diagram---------------------------------------------- 3

3.0 Pin

Assignment-------------------------------------------------------------- 4

4.0 System

Architecture

and Reference Design----------------------- 7

4.1 UT8A102 Block Diagram--------------------------------------------- 7

4.2 Sample Schematics--------------------------------------------------- 8

5.0 Electrical

Characteristics------------------------------------------------- 9

5.1 Recommended Operating Conditions-------------------------- 9

5.2 General DC Characteristics ---------------------------------------- 9

5.3 DC Electrical Characteristic for 3.3 volts operation ------- 9

5.4 Crystal Oscillator Circuit Setup for Characteristics ------- 10

5.5 ESD Test Results ------------------------------------------------------ 11

5.6 Latch-Up Test Results ----------------------------------------------- 12

6.0 Mechanical

Information--------------------------------------------------- 14

7.0 Order

information ---------------------------------------------------------- 15

8.0 Revision

history ------------------------------------------------------------ 16

UTRON

UT8A102

Rev. 1.0

USB Flash Disk Controller

UTRON TECHNOLOGY INC.

P10003

1F, NO.11, R&D RD. II, SCIENCE-BASED INDUSTRIAL PARK, HSINCHU, TAIWAN, R.O.C.
TEL: 886-3-5777882 FAX: 886-3-5777919

1.0 Introduction

1.1 Description

The UT8A102 is a highly integrated single chip USB flash disk controller.

It provides the most cost effective bridge between USB enabled PC and NAND
type flash memory.

The UT8A102 can be used as a removable storage disk in enormous data
exchange applications between PC, Macintosh, laptop and workstation. It can
also be configured as a bootable disk for system repairing .

The UT8A102 can work with 1 to 4 NAND type flash memory chip with the
combination of any popular flash memory type - 8MB ~ 2Gb. Additional features
include write protection switch, activity LED and password protected security .

The UT8A102 integrated 48MHz PLL, 3.3V regulator, power on reset circuit and
a power switch for flash memory power control.

1.2 Features

Fully compliant with USB v1.1 specification and USB Device Class Definition

for Mass Storage, Bulk-Transport v1.0

Work with default driver from Windows ME, Windows 2000, Windows XP, Mac

OS 9.1, and Mac OS X. Windows 98se is supported by vendor driver from
UTRON.

Multiple FIFO implementation for concurrent bus operation

Support up to 4 NAND Flash memory chips with write-protected capability

Support total flash memory size up to 1GB

Support mixed different size NAND Flash

Vendor ID, product ID and strings can be customized by utility software from

UTRON

Can be configured to support dual partitions with dynamic logic disk space

allocation.

Security function supported with password protection

LED for bus activity monitoring

Runs at 12MHz, built-in 48 MHz PLL

Built-in 3.3V regulator

Built-in power switch and power management circuit to achieve 500uA

suspend current required by USB specification.

Built-in power on reset circuit

Dedicated DMA engine to ensure highest throughput in read and write

48-pin TQFP package as standard package; 44-pin LQFP package is also

available.

UTRON

UT8A102

Rev. 1.0

USB Flash Disk Controller

UTRON TECHNOLOGY INC.

P10003

1F, NO.11, R&D RD. II, SCIENCE-BASED INDUSTRIAL PARK, HSINCHU, TAIWAN, R.O.C.
TEL: 886-3-5777882 FAX: 886-3-5777919

2.0 Application Block Diagram

Following is the application diagram of a typical flash disk product with UT8A102.

By connecting the flash disk to a desktop or notebook PC through USB bus,
UT8A102 is implemented as a bus-powered, full speed USB disk, which can be used
as a bridge for data transfer between Desktop PC and Notebook PC.

PC with USB Host Controller

Notebook with USB Host Controller

Электронный компонент: UT8A102