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MAX237ENG+

Description
RS-232 interface integrated circuit 5V MultiCh RS-232 Driver/Receiver
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size426KB,39 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric View All

MAX237ENG+ Overview

RS-232 interface integrated circuit 5V MultiCh RS-232 Driver/Receiver

MAX237ENG+ Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeDIP
package instructionDIP-24
Contacts24
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time6 weeks
Is SamacsysN
Other featuresEXTERNAL CHARGE PUMP
Differential outputNO
Number of drives5
Input propertiesSCHMITT TRIGGER
Interface integrated circuit typeLINE TRANSCEIVER
Interface standardsEIA-232-E; TIA-232-E; V.28; V.24
JESD-30 codeR-PDIP-T24
JESD-609 codee3
length30.545 mm
Humidity sensitivity level1
Number of functions3
Number of terminals24
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Minimum output swing10 V
Output characteristicsTOTEM-POLE
Maximum output low current0.0016 A
Output polarityINVERTED
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP24,.3
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)260
power supply5 V
Certification statusNot Qualified
Maximum receive delay10000 ns
Number of receiver bits3
Maximum seat height4.572 mm
Maximum slew rate15 mA
Maximum supply voltage5.5 V
Minimum supply voltage4.5 V
Nominal supply voltage5 V
surface mountNO
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
maximum transmission delay10000 ns
width7.62 mm
Base Number Matches1
MAX220–MAX249
+5V-Powered, Multichannel
RS-232 Drivers/Receivers
General Description
The MAX220–MAX249 family of line drivers/receivers is
intended for all EIA/TIA-232E and V.28/V.24 communica-
tions interfaces, particularly applications where ±12V is
not available.
The MAX225, MAX233, MAX235, and MAX245/MAX246/
MAX247 use no external components and are
recommended for applications where printed circuit
board space is critical.
The MAX220-MAX249 are offered in 26 different pack-
ages with temperatures from 0 to +70°C up to -55°C to
+125°C. See ordering information table at the end of the
data sheet for all package and temperature options.
Benefits and Features
Saves Board Space
Integrated Charge Pump Circuitry
Eliminates the Need for a Bipolar
±12V
Supply
Enables Single Supply Operation from +5V Supply
Integrated Capacitors (MAX223, MAX233, MAX235,
MAX245-MAX247)
Saves Power for Reduced Power Requirements
5µW Shutdown Mode
Ordering Information and Selection Table appears at end
of data sheet.
Applications
Interface Translation
Multidrop RS-232 Networks
Portable Diagnostics Equipment
AutoShutdown and UCSP are trademarks of Maxim Integrated
Products, Inc.
MAX220/MAX232/MAX232A Pin Configuration and Typical Operating Circuit
+5V INPUT
C3
TOP VIEW
C5
C1+ 1
V+ 2
C1- 3
C2+ 4
C2- 5
V- 6
T2OUT 7
R2IN 8
+
16 V
CC
15 GND
14 T1OUT
C1
C2
16
V
CC
C1+
+5V TO +10V
3 C1-
VOLTAGE DOUBLER
4
C2+
+10V TO -10V
5 C2- VOLTAGE INVERTER
1
+5V
400kΩ
11 T1IN
V+ 2 +10V
6
-10V
C4
V-
MAX220
MAX232
MAX232A
13 R1IN
12 R1OUT
11 T1IN
10 T2IN
9
R2OUT
TTL/CMOS
INPUTS
T1OUT 14
RS-232
OUTPUTS
T2OUT 7
+5V
400kΩ
10 T2IN
12 R1OUT
DIP/SO
CAPACITANCE (μF)
DEVICE
C1 C2 C3 C4 C5
MAX220
0.047 0.33 0.33 0.33 0.33
MAX232
1.0 1.0 1.0 1.0 1.0
MAX232A
0.1 0.1 0.1 0.1 0.1
TTL/CMOS
OUTPUTS
R1IN 13
5kΩ
RS-232
INPUTS
9 R2OUT
R2IN 8
5kΩ
GND
15
19-4323; Rev 17; 1/15
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