_______________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

6-Channel, Digital Ground-Level Translator

19-5714; Rev 1; 3/11

Typical Operating Circuit

General Description

The MAX14842 translates digital signals between two

domains that have different ground references of up to

72V. The device features six communication channels,

two bidirectional and four unidirectional. Two of the four

unidirectional channels go in each direction. The device

is powered by two supply voltages that independently

define the logic levels of each ground domain.

The MAX14842 supports guaranteed data rates up to

30Mbps on the four unidirectional channels and up to

2Mbps on the two bidirectional channels. The bidirec-

tional channels have open-drain outputs, making them

swapping is supported on the bidirectional channels.

Undervoltage lockout ensures that the output pins have

a defined behavior during power-up, power-down, and

during supply transients. For proper operation, ensure

be greater than or equal to GNDA.

The MAX14842 is available in a 16-pin TQFN package

and is specified over the -40NC to +125NC automotive

temperature range.

Ordering Information

Features

S

Supports Ground Differences Up to 72V

S

Four Unidirectional Channels: Two In/Two Out

S

Two Bidirectional Channels

S

S

S

30Mbps Unidirectional Data Rates

S

2Mbps Bidirectional Data Rates

S

+3.3V to +5V Level Translation

S

Undervoltage Lockout

S

4mm x 4mm, 16-Pin TQFN Package

S

-40NC to +125NC Automotive Temperature Range

Applications

Telecommunication Systems

Battery Management

Medical Systems

Power-Over-Ethernet

**EP = Exposed pad.

+Denotes a lead(Pb)-free/RoHS-compliant package.

SMBus is a trademark of Intel Corp.

SPI is a trademark of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

EVALUATION

KIT

AVAILABLE

INA1

0.1µF5V

3.3V

OUTB1

INA2

OUTB2

OUTA1INB1

OUTA2INB2

I/OA1

I/OB1

MAX14842

I/OB2

I/OA2

FOR PROPER OPERATION: 0V

GPIO

CS

RST

IRQ

SDA

µC

SCL

WAKE

ADDR

UV

ALARM

SDA

PERIPHERAL

SCL

GNDA

GNDB

0.1µF

PART

TEMP RANGE

PIN-PACKAGE

MAX14842ATE+

-40NC to +125NC

16 TQFN-EP**