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Direct from the Manufacturer

Part Manufacturer Description PDF Samples Ordering
MAX3221EIPWG4 Texas Instruments 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver 16-TSSOP -40 to 85 ri Buy
MAX3221IDBRE4 Texas Instruments 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver 16-SSOP -40 to 85 ri BuyFREE Buy
MAX3221CDBRG4 Texas Instruments 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver 16-SSOP 0 to 70 ri BuyFREE Buy
MAX3221CDBG4 Texas Instruments 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver 16-SSOP 0 to 70 ri Buy
MAX3221EIDBG4 Texas Instruments 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver 16-SSOP -40 to 85 ri Buy

Datasheet Search Results

Part Manufacturer Description PDF Type Ordering
MAX3221E Maxim Integrated Products, Inc. ±15kV ESD-Protected, 1uA, 3.0V to 5.5V, 250kbps, RS-232 Transceivers with AutoShutdown
ri

16 pages,
150.12 Kb

Original Buy
datasheet frame
MAX3221E Maxim Integrated Products, Inc. ±15kV ESD Protected, 1uA, 3.0V to 5.5V, 250kbps RS-232 Transceivers with AutoShutdown
ri

16 pages,
248.04 Kb

Original Buy
datasheet frame
MAX3221E Maxim Integrated Products, Inc. ±15kV ESD-Protected, 1uA, 3.0V to 5.5V, 250kbps RS-232 Transceivers with AutoShutdownTM
ri

16 pages,
248.21 Kb

Original Buy
datasheet frame
MAX3221E Texas Instruments 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver
ri

14 pages,
187.26 Kb

Original Buy
datasheet frame
MAX3221EAE Maxim Integrated Products, Inc. 1uA Supply Current, 1.8V to 4.25V-Powered RS-232 Transceiver with AutoShutdown
ri

16 pages,
313.74 Kb

Original Buy
datasheet frame
MAX3221EAE+ Maxim Integrated Products, Inc. 1uA Supply-Current, True +3V to +5.5V RS-232 Transceivers with AutoShutdown
ri

16 pages,
450.35 Kb

Original Buy
datasheet frame
MAX3221EAE+T Maxim Integrated Products, Inc. 1uA Supply-Current, True +3V to +5.5V RS-232 Transceivers with AutoShutdown
ri

16 pages,
450.35 Kb

Original Buy
datasheet frame
MAX3221EAE-T Maxim Integrated Products, Inc. 1uA Supply-Current, True +3V to +5.5V RS-232 Transceivers with AutoShutdown
ri

16 pages,
450.35 Kb

Original Buy
datasheet frame
MAX3221ECAE Maxim Integrated Products, Inc. ±15kV ESD-Protected, 1uA, 3.0V to 5.5V, 250kbps, RS-232 Transceivers with AutoShutdown
ri

16 pages,
150.13 Kb

Original Buy
datasheet frame
MAX3221ECAE Maxim Integrated Products, Inc. ±15kV ESD-Protected, 1 uA, 3.0V to 5.5V, 250kbps, RS-232 Transceivers with AutoShutdown
ri

18 pages,
214.99 Kb

Original Buy
datasheet frame

Catalog Search Results

Catalog Datasheet Results Type PDF Document Tags
Abstract: packages. Ordering Information PART TEMP RANGE MAX3221ECTE MAX3221ECUE MAX3221ECAE , 4 3 2 1 0 -1 -2 -3 -4 -5 -6 MAX3221E-01 6 TRANSMITTER OUTPUT VOLTAGE (V , - 0°C to +70°C 16 SSOP - MAX3221EEAE -40°C to +85°C 16 SSOP - MAX3221EETE , AutoShutdown Next Generation Device Features The MAX3221E/MAX3223E/MAX3243E are 3V-powered EIA/TIA-232 EIA/TIA-232 and , Discharge, and to ±15kV using the Human Body Model. The MAX3221E/MAX3223E/MAX3243E achieve a 1uA supply ... Original
datasheet

18 pages,
214.99 Kb

T3277-2 MAX3246E MAX3243E MAX3223E MAX3221E Logitech mouse ic MAX3243EEAI RS-232 MAX3221E/MAX3223E/MAX3243E EIA/TIA-232 RS-232 abstract
datasheet frame
Abstract: MAX3221ECAE 0°C to +70°C 16 SSOP - MAX3221EEAE -40°C to +85°C 16 SSOP - MAX3221EETE , /MAX3223E /MAX3223E SLEW RATE vs. LOAD CAPACITANCE MAX3221E-01 TRANSMITTER OUTPUT VOLTAGE (V) MAX3221E , AutoShutdown Next Generation Device Features The MAX3221E/MAX3223E/MAX3243E are 3V-powered EIA/TIA-232 EIA/TIA-232 and , Discharge, and to ±15kV using the Human Body Model. The MAX3221E/MAX3223E/MAX3243E achieve a 1uA supply , 250kbps while maintaining RS-232 RS-232 output levels. The MAX3221E contains just one driver and one receiver ... Original
datasheet

18 pages,
302.46 Kb

MAX3246E MAX3243E MAX3223EETP MAX3223E MAX3221E Logitech mouse ic MAX3243EEAI RS-232 MAX3221E/MAX3223E/MAX3243E EIA/TIA-232 RS-232 abstract
datasheet frame
Abstract: packages. Ordering Information PART TEMP RANGE MAX3221ECTE MAX3221ECUE MAX3221ECAE , /MAX3223E /MAX3223E SLEW RATE vs. LOAD CAPACITANCE MAX3221E-01 TRANSMITTER OUTPUT VOLTAGE (V) MAX3221E , - 0°C to +70°C 16 SSOP - MAX3221EEAE -40°C to +85°C 16 SSOP - MAX3221EETE , AutoShutdown Next Generation Device Features The MAX3221E/MAX3223E/MAX3243E are 3V-powered EIA/TIA-232 EIA/TIA-232 and , Discharge, and to ±15kV using the Human Body Model. The MAX3221E/MAX3223E/MAX3243E achieve a 1uA supply ... Original
datasheet

18 pages,
203.46 Kb

maxim MAX3221E MAX3246E MAX3223E MAX3221E Logitech mouse ic MAX3243EEAI MAX3243E RS-232 MAX3221E/MAX3223E/MAX3243E EIA/TIA-232 RS-232 abstract
datasheet frame
Abstract: ESDProtected I/O and Logic Pins Ordering Information PART MAX3221ECTE+ MAX3221ECUE+ MAX3221ECAE+ MAX3221EEAE+ MAX3221EETE+ MAX3221EEUE+ MAX3223ECPP MAX3223ECPP+ MAX3223ECAP MAX3223ECAP+ MAX3223ECUP MAX3223ECUP+ MAX3223ECTP MAX3223ECTP+ MAX3223EEPP MAX3223EEPP+ , 3000 MAX3221E-01 MAX3221E/MAX3223E SLEW RATE vs. LOAD CAPACITANCE 14 12 SLEW RATE (V/us , MAX3221E/ LE AVAILAB MAX3223E/MAX3243E MAX3223E/MAX3243E ±15kV ESD-Protected, 1uA, 3.0V to 5.5V, 250kbps, RS-232 RS-232 Transceivers with AutoShutdown General Description The MAX3221E/MAX3223E/MAX3243E are 3V-powered EIA/TIA-232 EIA/TIA-232 ... Original
datasheet

19 pages,
1664.74 Kb

PMU maxim MAX3221E/ MAX3223E/MAX3243E RS-232 MAX3221E/MAX3223E/MAX3243E EIA/TIA-232 MAX3221E MAX3223E MAX3243E MAX3221E/ abstract
datasheet frame
Abstract: MAX3221ECTE+ 0°C to +70°C 16 TQFN-EP* MAX3221ECUE+ 0°C to +70°C 16 TSSOP MAX3221ECAE+ 0°C to +70°C 16 SSOP MAX3221EEAE+ -40°C to +85°C 16 SSOP MAX3221EETE+ -40°C to +85°C 16 TQFN-EP* MAX3221EEUE+ -40°C to +85°C MAX3223ECPP MAX3223ECPP+ 0°C to +70°C 20 PDIP , /MAX3223E /MAX3223E SLEW RATE vs. LOAD CAPACITANCE MAX3221E-01 TRANSMITTER OUTPUT VOLTAGE (V) MAX3221E , AutoShutdown Next Generation Device Features The MAX3221E/MAX3223E/MAX3243E are 3V-powered EIA/TIA-232 EIA/TIA-232 and ... Original
datasheet

19 pages,
0 Kb

TQFN-EP MAX3221EEAE RS-232 MAX3221E/MAX3223E/MAX3243E EIA/TIA-232 MAX3221E MAX3223E MAX3243E RS-232 abstract
datasheet frame
Abstract: ) 4 16 MAX3221-TOC2 MAX3221-TOC2 5 4 3 MAX3221E-01 6 TRANSMITTER OUTPUT VOLTAGE (V) MAX3221E , EIA/TIA-232 EIA/TIA-232 Specifications Down to 3.0V o Smallest Single-Supply RS-232 RS-232 Transceiver (MAX3221E) o , TEMP. RANGE 0°C to +70°C MAX3221EEAE -40°C to +85°C MAX3223ECPP MAX3223ECPP 0°C to +70°C 20 Plastic , MAX3243EEAI MAX3243EEAI -40°C to +85°C 28 SSOP MAX3243EEUI MAX3243EEUI The MAX3221E contains just one driver and one , down. The MAX3221E, MAX3223E MAX3223E, and MAX3243E MAX3243E are available in space-saving SSOP and TSSOP packages. ... Original
datasheet

16 pages,
248.2 Kb

mouse circuit diagram MAX3221E MAX3221ECAE MAX3221EEAE MAX3223E MAX3223ECPP MAX3243E 16-Pin SSOP RS-232 Transceivers MAX3243EEAI Logitech mouse ic RS-232 MAX3221E/MAX3223E/MAX3243E EIA/TIA-232 RS-232 abstract
datasheet frame
Abstract: CAPACITANCE (pF) 4 16 MAX3221-TOC2 MAX3221-TOC2 5 4 3 MAX3221E-01 6 TRANSMITTER OUTPUT VOLTAGE (V , AutoShutdown The MAX3221E contains just one driver and one receiver, making it the smallest single-supply , biasing the protection diodes in circuitry that may be powered down. The MAX3221E, MAX3223E MAX3223E, and , Down to 3.0V o Smallest Single-Supply RS-232 RS-232 Transceiver (MAX3221E) o Guaranteed Mouse Driveability (MAX3243E MAX3243E) o Small 0.1uF Capacitors Ordering Information PART MAX3221ECAE TEMP. RANGE 0°C to +70°C ... Original
datasheet

16 pages,
248.04 Kb

MAX3243E MAX3223ECPP MAX3223E MAX3221EEAE MAX3221ECAE MAX3221E Logitech mouse ic RS-232 MAX3221E/MAX3223E/MAX3243E EIA/TIA-232 RS-232 abstract
datasheet frame
Abstract: SLEW RATE vs. LOAD CAPACITANCE MAX3221E-01 TRANSMITTER OUTPUT VOLTAGE (V) MAX3221E/MAX3223E , AutoShutdown Next Generation Device Features The MAX3221E/MAX3223E/MAX3243E are 3V-powered EIA/TIA-232 EIA/TIA-232 and , Discharge, and to ±15kV using the Human Body Model. The MAX3221E/MAX3223E/MAX3243E achieve a 1uA supply , Transceivers with ±15kV ESDProtected I/O and Logic Pins The MAX3221E contains just one driver and one , down. The MAX3221E, MAX3223E MAX3223E, and MAX3243E MAX3243E are available in space-saving SSOP and TSSOP packages. ... Original
datasheet

16 pages,
367.17 Kb

MAX3246E MAX3243E MAX3223E MAX3221E Logitech mouse ic IEEE1000 16-Pin SSOP RS-232 Transceivers MAX3243EEAI RS-232 MAX3221E/MAX3223E/MAX3243E EIA/TIA-232 RS-232 abstract
datasheet frame
Abstract: /MAX3223E /MAX3223E SLEW RATE vs. LOAD CAPACITANCE MAX3221E-01 TRANSMITTER OUTPUT VOLTAGE (V) MAX3221E , AutoShutdown The MAX3221E/MAX3223E/MAX3243E are 3V-powered EIA/TIA-232 EIA/TIA-232 and V.28/V.24 communications , Model. The MAX3221E/MAX3223E/MAX3243E achieve a 1uA supply current with Maxim's revolutionary , run at data rates of 250kbps while maintaining RS-232 RS-232 output levels. The MAX3221E contains just one , may be powered down. The MAX3221E, MAX3223E MAX3223E, and MAX3243E MAX3243E are available in space-saving SSOP ... Original
datasheet

16 pages,
150.12 Kb

MAX3243E MAX3223E MAX3221EEAE MAX3221ECAE MAX3221E IEC1000-4-2 16-Pin SSOP RS-232 Transceivers Logitech mouse ic MAX3243EEAI RS-232 MAX3221E/MAX3223E/MAX3243E EIA/TIA-232 RS-232 abstract
datasheet frame
Abstract: MAX3221EIPW Reel of 2000 TSSOP ­ PW MAX3221EIDB Reel of 2000 ­40°C to 85°C MAX3221ECPWR Tube of 80 SSOP ­ DB MAX3221ECPW Reel of 2000 TSSOP ­ PW MAX3221ECDBR Tube of 90 , 33.0 MAX3221ECPWR TSSOP PW 16 2000 346.0 346.0 29.0 MAX3221EIDBR SSOP , MAX3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 RS-232 LINE DRIVER/RECEIVER WITH 15-kV IEC ESD PROTECTION , DESCRIPTION/ORDERING INFORMATION The MAX3221E is a single driver, single receiver RS-232 RS-232 solution operating ... Original
datasheet

16 pages,
318.43 Kb

SN75C3221E SN65C3221E MP221 MAX3221ECDBR MAX3221ECDB MAX3221E mp221ec MP221EI RS-232 SLLS686A MAX3221E abstract
datasheet frame
Abstract: MAX3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 RS-232 LINE DRIVER/RECEIVER WITH 15-kV IEC ESD PROTECTION , DOUT FORCEON DIN INVALID ROUT DESCRIPTION/ORDERING INFORMATION The MAX3221E is a single driver , MAX3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 RS-232 LINE DRIVER/RECEIVER WITH 15-kV IEC ESD PROTECTION , or connected driver off MAX3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 RS-232 LINE DRIVER/RECEIVER WITH , 3 MAX3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 RS-232 LINE DRIVER/RECEIVER WITH 15-kV IEC ESD ... Original
datasheet

14 pages,
187.28 Kb

MB3221 MAX3221ECPW MAX3221ECDBR MAX3221ECDB MAX3221E MAX3221ECPWR RS-232 SLLS686 MAX3221E abstract
datasheet frame

Extended Electronics Archive (Experimental)

Abstract Saved from Date Saved File Size Type Download
Over 1.1 million files (1986-2013): html articles, reference designs, gerber files, chemical content, spice models, programs, code, pricing, images, circuits, parametric data, RoHS data, cross references, pcns, military data, and more. Please note that due to their age, these files do not always format correctly in modern browsers. Disclaimer.
 
< QuickView Data Sheet < ±15kV ESD Protected, 1uA, 3.0V to 5.5V, 250kbps RS-232 RS-232 RS-232 RS-232 Transceivers The < are 3V-powered EIA/TIA-232 EIA/TIA-232 EIA/TIA-232 EIA/TIA-232 and V.28/V.24 communications interfaces with < achieve a 1uA supply current with Maxim's revolutionary Auto data rates of 250kbps while maintaining RS-232 RS-232 RS-232 RS-232 output levels. The MAX3221E contains just one
www.datasheetarchive.com/files/maxim/0001/quick019.htm
Maxim 04/04/2001 7.5 Kb HTM quick019.htm
.5V RS-232 RS-232 RS-232 RS-232 Transceivers with AutoShutdown QV MAX3221E/ MAX MAX3221E/ MAX3223E/ MAX3223E/ MAX3223E/ MAX3223E/ MAX3243E MAX3243E MAX3243E MAX3243E ±15kV ESD-Protected, 1uA, +3V to +5.5V, 250kbps, RS Shutdown QV MAX3221E/ MAX3223E/ MAX3223E/ MAX3223E/ MAX3223E/ MAX3243E MAX3243E MAX3243E MAX3243E ±15kV ESD-Protected, 1uA, +3V to +5.5V,250kbps choose among the following High Data Rate RS-232 RS-232 RS-232 RS-232 solutions: QV MAX3221E
www.datasheetarchive.com/files/maxim/0009/232devic.htm
Maxim 04/04/2001 14.33 Kb HTM 232devic.htm
Interface RS-232 RS-232 RS-232 RS-232 for Point of Sales Equipment Interface RS-232 RS-232 RS-232 RS-232 for Point of Sales Equipment QV < ±15kV ESD Protected, 1uA, 3.0V to 5.5V, 250kbps RS-232 RS-232 RS-232 RS-232 Transceivers with AutoShutdown™ QV MAX3222E/MAX3232E/MAX3237E/MAX3241E MAX3222E/MAX3232E/MAX3237E/MAX3241E MAX3222E/MAX3232E/MAX3237E/MAX3241E MAX3222E/MAX3232E/MAX3237E/MAX3241E ±15kV ESD Protected, 3.0V to 5.5V, Low-Power, up to 250kbps, True RS-232 RS-232 RS-232 RS-232 Transceivers
www.datasheetarchive.com/files/maxim/0005/intrs002.htm
Maxim 04/04/2001 5.98 Kb HTM intrs002.htm
Transceivers with AutoShutdown™ QV < ±15kV ESD
www.datasheetarchive.com/files/maxim/0004/intrs005.htm
Maxim 04/04/2001 7.28 Kb HTM intrs005.htm
PDF REVISED: < : ±15kV ESD
www.datasheetarchive.com/files/maxim/0002/l_dat004.htm
Maxim 04/04/2001 18.05 Kb HTM l_dat004.htm
F Accept 5-V Logic Input With 3.3-V Supply Designed to be Interchangeable With Maxim MAX3221C MAX3221C MAX3221C MAX3221C and MAX3221E RS-232 RS-232 RS-232 RS-232 Bus-Pin ESD Protection Exceeds ±15-kV Using Human-Body Model (HBM) Applications
www.datasheetarchive.com/files/texas-instruments/data/wwwti~1.com/sc/docs/products/analog/maxt32~1.htm
Texas Instruments 28/01/2000 12.7 Kb HTM maxt32~1.htm
F Accept 5-V Logic Input With 3.3-V Supply Designed to be Interchangeable With Maxim MAX3221C MAX3221C MAX3221C MAX3221C and MAX3221E RS-232 RS-232 RS-232 RS-232 Bus-Pin ESD Protection Exceeds ±15-kV Using Human-Body Model (HBM) Applications
www.datasheetarchive.com/files/texas-instruments/data/www.ti.com/sc/docs/products/analog/maxt3221.html
Texas Instruments 29/01/2000 12.7 Kb HTML maxt3221.html
Shutdown™ QV < ±15kV ESD Protected, 1uA, 3.0V to 5.5V, 250kbps
www.datasheetarchive.com/files/maxim/0004/gpsparts.htm
Maxim 04/04/2001 15.49 Kb HTM gpsparts.htm
Shutdown QV < ±15kV ESD Protected, 1uA, 3.0V to 5.5V, 250kbps
www.datasheetarchive.com/files/maxim/0005/raidpart.htm
Maxim 04/04/2001 18.9 Kb HTM raidpart.htm
< ±15kV ESD Protected, 1uA, 3.0V to 5.5V, 250kbps RS-232 RS-232 RS-232 RS-232
www.datasheetarchive.com/files/maxim/0005/posparts.htm
Maxim 04/04/2001 24.5 Kb HTM posparts.htm

Exar Cross Reference Results

Exar Part Industry Part Manufacturer Type Description Comments Function Pin Compatible
SP3220E Buy MAX3221E Buy Maxim Integrated Products Pinout Equivalent Base part number. Yes Yes
SP3220EBCA Buy MAX3221ECAE Buy Maxim Integrated Products Pinout Equivalent 3V, 15kV, 250kbps, RS-232, 1 Driver, 1 Receiver Serial Interface IC Yes Yes
SP3220EBCA-L Buy MAX3221ECAE Buy Maxim Integrated Products Pinout Equivalent Yes Yes
SP3220EBEA Buy MAX3221EEAE Buy Maxim Integrated Products Pinout Equivalent 3V, 15kV, 250kbps, RS-232, 1 Driver, 1 Receiver Serial Interface IC Yes Yes
SP3220EBEA-L Buy MAX3221EEAE Buy Maxim Integrated Products Pinout Equivalent Yes Yes
SP3220EBEA-L Buy MAX3221EEAE+ Buy Maxim Integrated Products Functional Equivalent Question: The Maxim device has functions on pins 10 and 12, but the Sipex calls those out as no connects. If the customer is not currently using those functions on the Maxim device, will the devices work properly? Answer: Pins 10 and 12 are not connected to any internal circuits. They are truly floating so you can connect them high or low. Yes Yes
SP3226E Buy MAX3221E Buy Maxim Integrated Products Pinout Equivalent Base part number. Yes Yes

Intersil Cross Reference Results

Intersil Part Industry Part Manufacturer Type Description
ICL3221ECA Buy MAX3221ECAE Buy Maxim Pin for Pin Replacement. +/-15kV ESD Protected, +3V to +5.5V, 1Microamp, 250kbps, RS-232 Transmitters/Receivers
ICL3221ECAZ Buy MAX3221ECAE Buy Maxim Pin for Pin Replacement. ±15kV ESD Protected, +3V to +5.5V, 1µA, 250kbps, RS-232 Transmitters/Receivers
ICL3221ECAZ Buy MAX3221ECDB Buy Texas Instruments Pin for Pin Replacement. ±15kV ESD Protected, +3V to +5.5V, 1µA, 250kbps, RS-232 Transmitters/Receivers
ICL3221ECV Buy MAX3221ECUE Buy Maxim Pin for Pin Replacement. +/-15kV ESD Protected, +3V to +5.5V, 1Microamp, 250kbps, RS-232 Transmitters/Receivers
ICL3221ECVZ Buy MAX3221ECPW Buy Texas Instruments Pin for Pin Replacement. ±15kV ESD Protected, +3V to +5.5V, 1µA, 250kbps, RS-232 Transmitters/Receivers
ICL3221ECVZ Buy MAX3221ECPWE4 Buy Texas Instruments Pin for Pin Replacement. ±15kV ESD Protected, +3V to +5.5V, 1µA, 250kbps, RS-232 Transmitters/Receivers
ICL3221ECVZ Buy MAX3221ECUE Buy Maxim Pin for Pin Replacement. ±15kV ESD Protected, +3V to +5.5V, 1µA, 250kbps, RS-232 Transmitters/Receivers
ICL3221EIA Buy MAX3221EEAE Buy Maxim Pin for Pin Replacement. +/-15kV ESD Protected, +3V to +5.5V, 1Microamp, 250kbps, RS-232 Transmitters/Receivers
ICL3221EIAZ Buy MAX3221EEAE Buy Maxim Pin for Pin Replacement. ±15kV ESD Protected, +3V to +5.5V, 1µA, 250kbps, RS-232 Transmitters/Receivers
ICL3221EIAZ Buy MAX3221EIDB Buy Texas Instruments Pin for Pin Replacement. ±15kV ESD Protected, +3V to +5.5V, 1µA, 250kbps, RS-232 Transmitters/Receivers

Texas Instruments Cross Reference Results

Texas Instruments Part Industry Part Manufacturer Type Comment Description
MAX3221E Buy MAX3221 Buy Maxim Integrated Products Direct Replacement Lower data rate, Not IEC6100 ESD compliant 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver
MAX3221E Buy SP3220E Buy Sipex Corporation Direct Replacement 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver
TRS3221E Buy MAX3221E Buy Maxim Integrated Products Direct Replacement Lower data rate 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver With ±15-kV IEC ESD Protection