Rainbow-electronics MAX3107 Manual do Utilizador descarregar pdf (Página 1)

_______________________________________________________________ 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.

MAX3107

SPI/I

C UART with 128-Word FIFOs

and Internal Oscillator

19-5014; Rev 0; 10/09

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

*EP = Exposed pad.

Functional Diagram appears at end of data sheet.

General Description

The MAX3107 is an advanced universal asynchronous

receiver-transmitter (UART) with 128 words each of

receive and transmit first-in/first-out (FIFO) that can be

controlled through I

C or high-speed SPI™. An internal

oscillator reduces the need for an external crystal or

clock source. The 2x and 4x rate modes allow a maxi-

mum of 24Mbps data rates. A phase-locked loop (PLL),

prescaler, and fractional baud-rate generator allow for

high-resolution baud-rate programming and minimize

the dependency of baud rate on reference clock fre-

quency.

Autosleep and shutdown modes help reduce power

consumption during periods of inactivity. A low 640µA

(typ) supply current and tiny 24-pin TQFN (3.5mm x

3.5mm) package make the MAX3107 ideal for low-power

portable devices.

Integrated logic-level translation on the controller and

transceiver (RX/TX and RTS/CTS) interfaces enable use

with a wide selection of RS-232/RS-485 transceivers.

Automatic hardware and software flow control with

selectable FIFO interrupt triggering offloads low-level

activity from the host controller. Automatic half-duplex

transceiver control with programmable setup and hold

times allow the MAX3107 to be used in high-speed appli-

cations, for example Profibus-DP.

The MAX3107 is ideal for use in portable devices,

industrial applications, and automotive applications. The

MAX3107 is available in a 24-pin SSOP package and a

24-pin TQFN package. It is specified over the -40NC to

+85NC extended ambient temperature range.

Applications

Portable Devices

Industrial Control Systems

Fieldbus Networks

Automotive Infotainment Systems

Medical Systems

Point-of-Sale Systems

HVAC or Building Control

Features

S Tiny 24-Pin, Lead-Free TQFN (3.5mm x 3.5mm)

and 24-Pin, Lead-Free SSOP Packages

S Integrated Internal Oscillator

S 24Mbps (max) Data Rate

S Integrated PLL and Divider

S Fractional Baud-Rate Generator

S SPI Up to 26MHz Clock Rate

S Autotransceiver Direction Control

S Half-Duplex Echo Suppression

S Automatic RTS/CTS and XON/XOFF Flow Control

S Special Character Detection

S GPIO-Based Character Detection

S 9-Bit Multidrop-Mode Data Filtering

S SIR- and MIR-Compliant IrDA Encoder/Decoder

S +2.35V to +3.6V Supply Range

S Logic-Level Translation on the Controller and

Transceiver Interfaces (Down to 1.7V)

S Four Flexible GPIOs

S Line Noise Indication

S Shutdown and Autosleep Modes

S Low 640µA (typ) Supply Current at 1Mbaud and

20MHz Clock

S Low 20µA (typ) Shutdown Power

Ordering Information

SPI is a trademark of Motorola, Inc.

PART TEMP RANGE PIN-PACKAGE

MAX3107EAG+

-40NC to +85NC

24 SSOP

MAX3107ETG+

-40NC to +85NC

24 TQFN-EP*

1 2 3 4 5 6 ... 50 51

C UART with 128-Word FIFOs 1

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_______________________________________________________________ Maxim Integrated Products 1For pricing, delivery, and ordering information, pleas

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Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

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