MAX3243ECDBG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The MAX3243ECDBG4 is a multi-channel RS-232 line driver/receiver IC from Texas Instruments, operating from 3V to 5.5V supply with Schmitt trigger inputs and EIA-232-F compatibility. Features three drivers and five receivers with internal charge pump capacitors. Available in 28-pin SSOP package with RoHS compliance, competitive pricing, and worldwide stock.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- MAX3243ECDBG4 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 MAX3243ECDBG4?
- Operates from 3V to 5.5V supply voltage, also compatible with 5V systems for flexible power design
- Integrated charge pump with external capacitors enables RS-232 voltage generation from single low-voltage supply
- Schmitt trigger inputs on all receivers provide enhanced noise immunity in industrial and communications applications
- EIA/TIA-232-F and V.28 compliant with 3 drivers and 5 receivers in compact 28-pin SSOP package
What is MAX3243ECDBG4 used for?
The MAX3243ECDBG4 is widely used in industrial automation equipment, embedded systems, and portable devices requiring RS-232 serial communication interfaces. It enables reliable UART-to-RS-232 level conversion in battery-powered applications such as handheld test instruments and PDAs. The device is also suited for telecommunications equipment, modems, and data acquisition systems where low-voltage logic must interface with legacy RS-232 serial ports.
What are the specifications of MAX3243ECDBG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | ALSO OPERATES AT 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 | 10V |
| Output Low Current-Max | 0.0016A |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP28,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, 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 | 5.5V |
| Supply Voltage1-Min | 4.5V |
| Supply Voltage1-Nom | 5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| 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 |
Where can I find the MAX3243ECDBG4 datasheet?
MAX3243ECDBG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for MAX3243ECDBG4?
Compatible alternatives and drop-in replacements for MAX3243ECDBG4:
Frequently Asked Questions
What is the supply voltage range for the MAX3243ECDBG4?
The MAX3243ECDBG4 operates from a supply voltage range of 3V to 5.5V, making it compatible with both 3.3V and 5V logic systems. This wide range is ideal for mixed-voltage designs and battery-powered portable devices requiring RS-232 communication.
How many RS-232 drivers and receivers does the MAX3243ECDBG4 include?
The MAX3243ECDBG4 integrates 3 RS-232 drivers and 5 RS-232 receivers, providing a multi-channel interface suitable for full-duplex serial communication. This configuration supports standard UART connections and multi-port RS-232 applications in a single 28-pin SSOP package.
What interface standards does the MAX3243ECDBG4 comply with?
The MAX3243ECDBG4 complies with EIA-232-F, TIA-232-F, and V.28 interface standards, ensuring full compatibility with legacy RS-232 serial equipment. Schmitt trigger inputs on the receivers provide additional noise immunity per these specifications, enabling reliable data transmission up to 120kbps.
Is the MAX3243ECDBG4 RoHS compliant and what package does it come in?
Yes, the MAX3243ECDBG4 is RoHS compliant (Pb-free) as indicated by its G4 suffix. It is housed in a 28-pin SSOP (Small Outline Packages) package (JEDEC R-PDSO-G28), offering a compact PCB footprint suitable for space-constrained designs.
What are typical applications for the MAX3243ECDBG4?
The MAX3243ECDBG4 is commonly used in industrial control systems, embedded computing platforms, telecommunications equipment, handheld instruments, and any application requiring RS-232 serial communication from low-voltage 3.3V or 5V microcontrollers. Its wide supply range and integrated charge pump make it especially suitable for battery-operated and portable devices.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 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