Maxim > Products > Interface, Interconnect, Signal Integrity > MAX3110E, MAX3111E

MAX3110E, MAX3111E

SPI/MICROWIRE-Compatible UART and ±15kV ESD-Protected RS-232 Transceivers with Internal Capacitors

Industry's-First Integrated Serial UART and Dual RS-232 IC

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX3110E/MAX3111E combine a full-featured universal asynchronous receiver/transmitter (UART) with ±15kV ESD-protected RS-232 transceivers and integrated charge-pump capacitors into a single 28-pin package for use in space-, cost-, and power-constrained applications. The MAX3110E/MAX3111E also feature an SPI™/QSPI™/MICROWIRE™-compatible serial interface to save additional board space and microcontroller (µC) I/O pins.

A proprietary low-dropout output stage enables the 2-driver/2-receiver interface to deliver true RS-232 performance down to V_CC = +3V (+4.5V for MAX3110E) while consuming only 600µA. The receivers remain active in a hardware/software-invoked shutdown, allowing external devices to be monitored while consuming only 10µA. Each device is guaranteed to operate at up to 230kbps while maintaining true EIA/TIA-232 output voltage levels.

The MAX3110E/MAX3111E's UART includes a crystal oscillator and baud-rate generator with software-programmable divider ratios for all common baud rates from 300baud to 230kbaud. The UART features an 8-word-deep receive FIFO that minimizes processor overhead and provides a flexible interrupt with four maskable sources. Two control lines (one input and one output) are included for hardware handshaking.

The UART and RS-232 functions can be used together or independently since the two functions share only supply and ground connections (the MAX3110E/MAX3111E are hardware- and software-compatible with the MAX3100 and MAX3222E).

Data Sheet

Download	Rev 1	(PDF, 316kB)
E-Mail

An evaluation kit is available: MAX3111EEVKIT

Key Features

Integrated RS-232 Transceiver and UART in a Single 28-Pin Package
SPI/QSPI/MICROWIRE-Compatible µC Interface
Internal Charge-Pump Capacitors—No External Components Required!
True RS-232 Operation Down to V_CC= +3V (MAX3111E)
ESD Protection for RS-232 I/O Pins
- ±15kV-Human Body Model
- ±8kV-IEC 1000-4-2, Contact Discharge
- ±15kV-IEC 1000-4-2, Air-Gap Discharge
Single-Supply Operation
- +5V (MAX3110E)
- +3.3V (MAX3111E)
Low Power
- 600µA Supply Current
- 10µA Shutdown Supply Current with Receiver Interrupt Active
Guaranteed 230kbps Data Rate
Hardware/Software-Compatible with MAX3100 and MAX3222E
SPI/QSPI/MICROWIRE-compatible serial interface; 8-word receive FIFO; +5V supply (MAX3110E)
+3.3V Supply (MAX3111E)

Applications/Uses

Handheld/Battery-Powered Equipment
Handy Terminals
Industrial Front-Panel Interfaces
Point-of-Sale (POS) Devices
Telecom/Networking Diagnostic Ports

Key Specifications:

SPI/Microwire-Compatible UARTs

Part Number

µP I/F

Channels

I_CC
(mA)

V_SUPPLY
(V)

Package/Pins

Smallest Available Pckg.
(mm²)

Oper. Temp.
(°C)

Budgetary Price

typ

max w/pins

See Notes

MAX3110E

SPI and Microwire Compatible

0.6

PDIP(N)/28

SOIC(W)/28

192.8

-40 to +85

0 to +70

$5.14 @1k

MAX3111E

3.3

PDIP(N)/28

SOIC(W)/28

$5.14 @1k

See All SPI/Microwire-Compatible UARTs (8)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Operating Circuit

Application Notes

Tutorial 2141

Determining Clock Accuracy Requirements for UART Communications

Product Guides

Interface (PDF)

Reliability Reports

Reliability Report:	MAX3110E.pdf MAX3111E.pdf
Show FIT data for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX3110ECNI			Active	PDIP(N);28 pin;289.5 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: N28M-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX3110ECNI+G36			Active	PDIP(N);28 pin;289.5 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: N28M+1*	0°C to +70°C	See data sheet
MAX3110ECWI			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX3110ECWI+G36			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3110ECWI+TG36			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3110ECWI-T			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX3110EENI			Active	PDIP(N);28 pin;289.5 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: N28M-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3110EENI+G36			Active	PDIP(N);28 pin;289.5 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: N28M+1*	-40°C to +85°C	See data sheet
MAX3110EEWI			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3110EEWI+G36			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX3110EEWI+TG36			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3110EEWI-T			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3111ECNI			Active	PDIP(N);28 pin;289.5 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: N28M-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX3111ECNI+G36			Active	PDIP(N);28 pin;289.5 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: N28M+1*	0°C to +70°C	See data sheet
MAX3111ECWI			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX3111ECWI+G36			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3111ECWI+TG36			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3111ECWI-T			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX3111EENI			Active	PDIP(N);28 pin;289.5 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: N28M-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3111EENI+G36			Active	PDIP(N);28 pin;289.5 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: N28M+1*	-40°C to +85°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX3111EEWI			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3111EEWI+G36			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3111EEWI+TG36			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3111EEWI-T			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28M-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Notes and Comments

Maximum reflow temperature is +225°C

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Evaluation Kits

MAX3111EEVKIT

Evaluation Kit for the MAX3111E

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