MAX3346E Просмотр технического описания (PDF) - Maxim Integrated

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MAX3346E

±15kV ESD-Protected USB Transceiver in UCSP

Maxim Integrated 

19-3172; Rev 0; 2/04

±15kV ESD-Protected USB Transceiver

in UCSP

General Description

The MAX3346E bidirectional transceiver converts logic-

level signals to USB signals, and USB signals to logic-

level signals. The MAX3346E includes the 1.5kΩ USB

pullup resistor internally, and supports both full-speed

(12Mbps) and low-speed (1.5Mbps) USB operation.

The device has built-in ±15kV ESD protection circuitry

to guard the USB I/O pins, D+ and D-.

The MAX3346E operates with VL voltages as low as

1.65V, ensuring compatibility with low-voltage ASICs.

The device features a logic-selectable suspend mode

that lowers current draw to less than 40µA. The

MAX3346E has an enumerate function that allows

devices to logically disconnect while plugged in. The

MAX3346E is fully compliant with USB specification 1.1,

and the full-speed and low-speed operation under USB

specification 2.0.

The MAX3346E is available in the miniature 4 x 4 chip-

scale package (UCSPTM), as well as the small 14-pin

TSSOP, and is rated for the -40°C to +85°C extended

temperature range.

Applications

Cell Phones

PC Peripherals

Data Cradles

PDAs

MP3 Players

Features

♦ ±15kV ESD Protection on D+ and D-

♦ Internal Linear Regulator Allows Direct Powering

from the USB Cable

♦ Internal 1.5kΩ Pullup Resistor for Low/Full-Speed

Operation

♦ Supports Low-Speed and Full-Speed USB

Communications

♦ Complies with USB Specification Revision 1.1 and

2.0 (Low Speed and Full Speed)

♦ Three-State Outputs

♦ Enumerate Input—Allows USB Connection

through Software

♦ No Power-Supply Sequencing Required

♦ Operates with VL of 1.65V to 3.6V, Ensuring

Compatibility with Low-Voltage ASICs

♦ Available in Miniature Chip-Scale Package

PART

MAX3346EEUD

MAX3346EEBE-T

Ordering Information

TEMP RANGE

-40°C to +85°C

-40°C to +85°C

PIN-PACKAGE

14 TSSOP

4 x 4 UCSP

UCSP is trademark of Maxim Integrated Products, Inc.

Pin Configurations

TOP VIEW

RCV 1

VP 2

MODE 3

VM 4

OE 5

ENUM 6

SUSP 7

MAX3346E

TSSOP

BOTTOM VIEW

14 VL

13 VTRM

D

12 D+

C

11 D-

10 GND

B

9 VCC

8 SPEED

A

1

2

3

4

MAX3346E

VP RCV VL VTRM

VM MODE

D+

OE SUSP

D-

ENUM SPEED VCC GND

UCSP

________________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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