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MAX3111ECWI+T

Description
UART Interface IC
Categorysemiconductor    Analog mixed-signal IC   
File Size757KB,31 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX3111ECWI+T Overview

UART Interface IC

MAX3111ECWI+T Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerMaxim
Product CategoryUART Interface IC
Number of Channels2 Channel
Data Rate250 kb/s
Memory Size8 B
Supply Voltage - Max3.6 V
Supply Voltage - Min3 V
Operating Supply Current1.4 mA
Minimum Operating Temperature0 C
Maximum Operating Temperature+ 70 C
Mounting StyleSMD/SMT
Package / CaseSOIC-Wide-28
Height2.35 mm (Max)
Length18.1 mm (Max)
Width7.6 mm (Max)
Unit Weight0.025778 oz
AVAILAB
LE
MAX3110E/MAX3111E
SPI/MICROWIRE-Compatible UART and ±15kV ESD-
Protected RS-232 Transceivers with Internal Capacitors
General Description
The MAX3110E/MAX3111E combine a full-featured uni-
versal asynchronous receiver/transmitter (UART) with
±15kV ESD-protected RS-232 transceivers and inte-
grated charge-pump capacitors into a single 28-pin
package for use in space-, cost-, and power-con-
strained 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 per-
formance down to V
CC
= +3V (+4.5V for MAX3110E)
while consuming only 600µA. The receivers remain
active in a hardware/software-invoked shutdown, allow-
ing 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-pro-
grammable divider ratios for all common baud rates
from 300baud to 230kbaud. The UART features an 8-
word-deep receive FIFO that minimizes processor over-
head 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/
Functional Diagrams
MAX3111E are hardware- and software-compatible
with the MAX3100 and MAX3222E).
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
Ordering Information
PART
MAX3110ECWI
MAX3110ECNI
TEMP.
RANGE
0°C to +70°C
0°C to +70°C
PIN-
PACKAGE
28 Wide SO
28 Plastic DIP
V
CC
(V)
5
5
________________________Applications
Point-of-Sale (POS) Devices
Handy-Terminals
Telecom/Networking Diagnostic Ports
Industrial Front-Panel Interfaces
Hand-Held/Battery-Powered Equipment
Ordering Information continued at end of data sheet.
Typical Application Circuit
MAX3110E
MAX3111E
SPI
CS
μP
SCLK
DIN
DOUT
U
A
R
T
1
6
2
7
3
8
4
9
5
RS-232
DB-9
Pin Configuration appears at end of data sheet.
Covered by U.S. Patent numbers 4,636,930; 4,679,134;
4,777,577; 4,797,899; 4,809,152; 4,897,774; 4,999,761; and
other patents pending.
Pin Configurations appear at end of data sheet.
Functional Diagrams continued at end of data sheet.
SPI and QSPI are trademarks of Motorola, Inc.
UCSP is a trademark of Maxim Integrated Products, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
IRQ
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-1494; Rev 1; 12/05

MAX3111ECWI+T Related Products

MAX3111ECWI+T MAX3111ECWI- MAX3110EENI- MAX3111ECNI+ MAX3110ECWI+ MAX3110ECWI+T
Description UART Interface IC UART Interface IC UART Interface IC UART Interface IC UART Interface IC
Manufacturer Maxim Maxim Maxim Maxim Maxim Maxim
Product Category UART Interface IC UART Interface IC UART Interface IC UART Interface IC UART Interface IC UART Interface IC
Number of Channels 2 Channel 2 Channel 1 Channel 2 Channel 1 Channel 1 Channel
Data Rate 250 kb/s 250 kb/s 250 kb/s 250 kb/s 250 kb/s 250 kb/s
Memory Size 8 B 8 B 8 B 8 B 8 B 8 B
Supply Voltage - Max 3.6 V 3.6 V 5.5 V 3.6 V 5.5 V 5.5 V
Supply Voltage - Min 3 V 3 V 4.5 V 3 V 4.5 V 4.5 V
Operating Supply Current 1.4 mA 1.4 mA 600 uA 1.4 mA 600 uA 600 uA
Minimum Operating Temperature 0 C 0 C - 40 C 0 C 0 C 0 C
Maximum Operating Temperature + 70 C + 70 C + 85 C + 70 C + 70 C + 70 C
Mounting Style SMD/SMT SMD/SMT Through Hole Through Hole SMD/SMT SMD/SMT
Package / Case SOIC-Wide-28 SOIC-Wide-28 PDIP-28 PDIP-28 SOIC-Wide-28 SOIC-Wide-28
Height 2.35 mm (Max) 2.35 mm (Max) 4.572 mm 4.45 mm (Max) 4.572 mm 4.572 mm
Length 18.1 mm (Max) 18.1 mm (Max) 35.05 mm 35.05 mm (Max) 35.05 mm 35.05 mm
Width 7.6 mm (Max) 7.6 mm (Max) 7.255 mm 7.87 mm (Max) 7.255 mm 7.255 mm
Unit Weight 0.025778 oz 0.025778 oz 0.147798 oz 0.147798 oz 0.025778 oz 0.025778 oz
Product Attribute Attribute Value - - Attribute Value Attribute Value Attribute Value

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