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MAX3218CWP

Description
RS-232 Interface IC 1A, 1.8V to 4.25V RS-232 Transceiver with AutoShutdown#
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size132KB,12 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX3218CWP Overview

RS-232 Interface IC 1A, 1.8V to 4.25V RS-232 Transceiver with AutoShutdown#

MAX3218CWP Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerMaxim
Parts packaging codeSOIC
package instruction0.300 INCH, SO-20
Contacts20
Reach Compliance Codenot_compliant
ECCN codeEAR99
Other featuresEXTERNAL CHARGE PUMP; TRISTATABLE RECEIVERS; AUTO SHUTDOWN
Differential outputNO
Number of drives2
Input propertiesSTANDARD
Interface integrated circuit typeLINE TRANSCEIVER
Interface standardsEIA-232-E; V.24; V.28; EIA-562
JESD-30 codeR-PDSO-G20
JESD-609 codee0
length12.8 mm
Humidity sensitivity level1
Number of functions1
Number of terminals20
Maximum operating temperature70 °C
Minimum operating temperature
Output characteristics3-STATE
Output polarityINVERTED
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)240
Certification statusNot Qualified
Number of receiver bits2
Maximum seat height2.65 mm
Maximum supply voltage4.25 V
Minimum supply voltage1.8 V
Nominal supply voltage3.3 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn85Pb15)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width7.5 mm
Base Number Matches1
19-0380; Rev 0; 3/95
1µA Supply Current, 1.8V to 4.25V-Powered
RS-232 Transceiver with AutoShutdown™
_______________General Description
The MAX3218 RS-232 transceiver is intended for bat -
tery-powered EIA/TIA-232E and V.28/V.24 communica-
tions interfaces that need two drivers and two receivers
with minimum power consumption from a single low-
voltage supply. It provides a wide +1.8V to +4.25V
operating voltage range while maintaining true RS-232
and EIA/TIA-562 voltage levels. The MAX3218 runs
from two alkaline, NiCd, or NiMH cells without any form
of voltage regulator. A guaranteed 120kbps data rate
provides compatibility with popular software for com -
municating with personal computers.
Supply current is reduced to 1 µA with Maxim’s new
AutoShutdown™ feature. When the MAX3218 does not
sense a valid signal level on the receiver inputs, the on-
board power-supply and drivers shut down. This
occurs if the RS-232 cable is disconnected or if the
transmitters of the connected peripheral are turned off.
The system turns on again when a valid level is applied
to either RS-232 receiver input. As a result, the system
saves power without changes to the existing software.
Additionally, the MAX3218 can be forced into or out of
shutdown, under logic control.
While shut down, all receivers can remain active or can
be disabled under logic control, permitting a system
incorporating the CMOS MAX3218 to monitor external
devices while in low-power shutdown. Three-state dri -
vers are provided on both receiver outputs so that multi -
ple receivers, generally of different interface standards,
can be on the same bus. The MAX3218 is available in
20-pin DIP and SSOP packages.
____________________________Features
BETTER THAN BIPOLAR!
o
1µA Supply Current Using AutoShutdown™
o
Operates Directly from Two Alkaline,
NiCd or NiMH Cells
o
+1.8V to +4.25V Single-Supply Voltage Range
o
120kbps Data Rate Guaranteed
o
Low-Cost Surface-Mount Components
o
Meets EIA/TIA-232E Specifications
o
Three-State Receiver Outputs
o
Flow-Through Pinout
o
On-Board DC-DC Converters
o
20-Pin SSOP and DIP Packages
MAX3218*
______________Ordering Information
PART
MAX3218CPP
MAX3218CAP
MAX3218C/D
MAX3218EPP
MAX3218EAP
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
20 Plastic DIP
20 SSOP
Dice
20 Plastic DIP
20 SSOP
Contact factory for dice specifications.
________________________Applications
Battery-Powered Equipment
Subnotebook Computers
PDAs
Hand-Held Equipment
Peripherals
Cellular Phones
__________________Pin Configuration
TOP VIEW
LX 1
INVALID 2
FORCEON 3
FORCEOFF 4
GND 5
V
CC
6
T1IN 7
T2IN 8
R1OUT 9
R2OUT 10
20 GND
19 V+
18 C1+
17 GND
MAX3218
16 C1-
15 V-
14 T1OUT
13 T2OUT
12 R1IN
11 R2IN
*
™ AutoShutdown is a trademark of Maxim Integrated Products.
DIP/SSOP
1
________________________________________________________________
Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.

MAX3218CWP Related Products

MAX3218CWP MAX3218CPP+ MAX3218EAP+T MAX3218EPP MAX3218CAP+T MAX3218CWP-T MAX3218CPP MAX3218CAP-T
Description RS-232 Interface IC 1A, 1.8V to 4.25V RS-232 Transceiver with AutoShutdown# RS-232 Interface IC 1uA 1.8-4.25V Tcvr w/AutoShutdown RS-232 Interface IC 1uA 1.8-4.25V Tcvr w/AutoShutdown RS-232 Interface IC RS-232 Interface IC 1uA 1.8-4.25V Tcvr w/AutoShutdown RS-232 Interface IC RS-232 Interface IC 1A, 1.8V to 4.25V RS-232 Transceiver with AutoShutdown# RS-232 Interface IC
Is it lead-free? Contains lead Lead free Lead free Contains lead Lead free Contains lead Contains lead Contains lead
Is it Rohs certified? incompatible conform to conform to incompatible conform to incompatible incompatible incompatible
Parts packaging code SOIC DIP SSOP DIP SSOP SOIC DIP SSOP
package instruction 0.300 INCH, SO-20 DIP-20 SSOP, DIP, DIP20,.3 SSOP, 0.300 INCH, SO-20 0.300 INCH, PLASTIC, DIP-20 SSOP-20
Contacts 20 20 20 20 20 20 20 20
Reach Compliance Code not_compliant compliant compliant not_compliant compliant not_compliant not_compliant not_compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Other features EXTERNAL CHARGE PUMP; TRISTATABLE RECEIVERS; AUTO SHUTDOWN EXTERNAL CHARGE PUMP; TRISTATABLE RECEIVERS; AUTO SHUTDOWN EXTERNAL CHARGE PUMP; TRISTATABLE RECEIVERS; AUTO SHUTDOWN EXTERNAL CHARGE PUMP; TRISTATABLE RECEIVERS; AUTO SHUTDOWN EXTERNAL CHARGE PUMP; TRISTATABLE RECEIVERS; AUTO SHUTDOWN EXTERNAL CHARGE PUMP; TRISTATABLE RECEIVERS; AUTO SHUTDOWN EXTERNAL CHARGE PUMP; TRISTATABLE RECEIVERS; AUTO SHUTDOWN EXTERNAL CHARGE PUMP; TRISTATABLE RECEIVERS; AUTO SHUTDOWN
Differential output NO NO NO NO NO NO NO NO
Number of drives 2 2 2 2 2 2 2 2
Input properties STANDARD SCHMITT TRIGGER SCHMITT TRIGGER SCHMITT TRIGGER SCHMITT TRIGGER STANDARD SCHMITT TRIGGER SCHMITT TRIGGER
Interface integrated circuit type LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER
Interface standards EIA-232-E; V.24; V.28; EIA-562 EIA-232-E; V.24; V.28; EIA-562 EIA-232-E; V.24; V.28; EIA-562 EIA-232-E; V.24; V.28; EIA-562 EIA-232-E; V.24; V.28; EIA-562 EIA-232-E; V.24; V.28; EIA-562 EIA-232-E; V.24; V.28; EIA-562 EIA-232-E; V.24; V.28; EIA-562
JESD-30 code R-PDSO-G20 R-PDIP-T20 R-PDSO-G20 R-PDIP-T20 R-PDSO-G20 R-PDSO-G20 R-PDIP-T20 R-PDSO-G20
JESD-609 code e0 e3 e3 e0 e3 e0 e0 e0
length 12.8 mm 26.16 mm 7.2 mm 26.16 mm 7.2 mm 12.8 mm 26.16 mm 7.2 mm
Humidity sensitivity level 1 1 1 1 1 1 1 1
Number of functions 1 1 1 1 1 1 1 1
Number of terminals 20 20 20 20 20 20 20 20
Maximum operating temperature 70 °C 70 °C 85 °C 85 °C 70 °C 70 °C 70 °C 70 °C
Output characteristics 3-STATE 3-STATE 3-STATE 3-STATE 3-STATE 3-STATE 3-STATE 3-STATE
Output polarity INVERTED INVERTED INVERTED INVERTED INVERTED INVERTED INVERTED INVERTED
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP DIP SSOP DIP SSOP SOP DIP SSOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE IN-LINE SMALL OUTLINE, SHRINK PITCH IN-LINE SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE IN-LINE SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 240 260 260 240 260 245 240 245
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Number of receiver bits 2 2 2 2 2 2 2 2
Maximum seat height 2.65 mm 4.572 mm 1.99 mm 4.572 mm 1.99 mm 2.65 mm 4.572 mm 1.99 mm
Maximum supply voltage 4.25 V 4.25 V 4.25 V 4.25 V 4.25 V 4.25 V 4.25 V 4.25 V
Minimum supply voltage 1.8 V 1.8 V 1.8 V 1.8 V 1.8 V 1.8 V 1.8 V 1.8 V
Nominal supply voltage 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V
surface mount YES NO YES NO YES YES NO YES
technology CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS
Temperature level COMMERCIAL COMMERCIAL INDUSTRIAL INDUSTRIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
Terminal surface Tin/Lead (Sn85Pb15) Matte Tin (Sn) Matte Tin (Sn) Tin/Lead (Sn85Pb15) Matte Tin (Sn) Tin/Lead (Sn85Pb15) Tin/Lead (Sn85Pb15) Tin/Lead (Sn85Pb15)
Terminal form GULL WING THROUGH-HOLE GULL WING THROUGH-HOLE GULL WING GULL WING THROUGH-HOLE GULL WING
Terminal pitch 1.27 mm 2.54 mm 0.65 mm 2.54 mm 0.65 mm 1.27 mm 2.54 mm 0.65 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 20 30 30 20 30 NOT SPECIFIED 20 NOT SPECIFIED
width 7.5 mm 7.62 mm 5.29 mm 7.62 mm 5.29 mm 7.5 mm 7.62 mm 5.29 mm
Maker Maxim Maxim Maxim - Maxim Maxim Maxim Maxim
Base Number Matches 1 1 - 1 - 1 1 -
Maximum receive delay - 1000 ns 1000 ns 1000 ns 1000 ns - 1000 ns 1000 ns
Maximum slew rate - 3 mA 3 mA 3 mA 3 mA - 3 mA 3 mA
maximum transmission delay - 2700 ns 2700 ns 2700 ns 2700 ns - 2700 ns 2700 ns
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