MAX3243CPWE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The MAX3243CPWE4 is a multi-channel RS-232 line driver/receiver IC from Texas Instruments operating on 3V to 5.5V supply. It features 3 drivers, Schmitt trigger inputs, and EIA/TIA-232-F compliance in a 28-pin SOIC package. Available with worldwide shipping at competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- MAX3243CPWE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MAX3243CPWE4?
- Wide supply voltage range of 3V to 5.5V supports both 3.3V and 5V systems, simplifying RS-232 integration across multiple platform types
- Schmitt trigger inputs with hysteresis improve noise immunity and signal integrity in electrically noisy industrial and embedded environments
- Multi-channel design with 3 drivers and multiple receivers in a single 28-pin SOIC package reduces BOM count and board area for serial communication applications
What is MAX3243CPWE4 used for?
The MAX3243CPWE4 is commonly used in industrial equipment, embedded computers, and communication devices requiring RS-232 serial interface compliance per EIA/TIA-232-F and V.28 standards. Its wide 3V to 5.5V supply range makes it compatible with both 3.3V and 5V microcontroller platforms, enabling reliable UART-to-RS-232 level conversion without additional power rails. It is also found in modem interfaces, POS terminals, medical instruments, and legacy serial port expansion cards where robust multi-channel RS-232 transceiver functionality is required.
What are the specifications of MAX3243CPWE4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | CAN ALSO OPERATE WITH 5V SUPPLY |
| Differential Output | NO |
| Driver Number of Bits | 3 |
| High Level Input Current-Max | 0.000001A |
| Input Characteristics | SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-232-F; TIA-232-F; V.28 |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e4 |
| Number of Functions | 3 |
| Out Swing-Min | 5V |
| Output Low Current-Max | 0.0016A |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP28,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Receive Delay-Max | 150ns |
| Receiver Number of Bits | 5 |
| Supply Current-Max | 1mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Supply Voltage1-Max | 3.6V |
| Supply Voltage1-Min | 3V |
| Supply Voltage1-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 150ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia, Taiwan |
Where can I find the MAX3243CPWE4 datasheet?
MAX3243CPWE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for MAX3243CPWE4?
Compatible alternatives and drop-in replacements for MAX3243CPWE4:
Frequently Asked Questions
When would MAX3243CPWE4 suit a new Integrated Circuit design rather than a nearby alternative?
MAX3243CPWE4 is documented as follows: The MAX3243CPWE4 is a multi-channel RS-232 line driver/receiver IC from Texas Instruments operating on 3V to 5.5V supply. It features 3 drivers, Schmitt trigger inputs, and EIA/TIA-232-F compliance in a 28-pin SOIC package. Available with worldwide shipping at competitive pricing. For design screening, confirm the 3V characteristic against the target circuit, mating component, and environmental requirements before qualification.
Before releasing a board layout, what must be checked for MAX3243CPWE4?
Before releasing a footprint for MAX3243CPWE4, engineers should verify the documented 3V characteristic, package drawing, orientation, pad geometry, mating interface, and assembly process against the manufacturer's current datasheet.
Which incoming-inspection records help buyers qualify production lots of MAX3243CPWE4?
For production orders of MAX3243CPWE4, buyers should require manufacturer traceability, lot and date-code records, compliance documentation, and confirmation that supplied components preserve the documented 3V characteristic.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit