MAX3243ECDB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The MAX3243ECDB is a multichannel RS-232 / EIA-232-F line transceiver from Texas Instruments, integrating 3 transmitters and 5 receivers in a 28-pin SOIC package. It operates from both 3.3V and 5V supplies with Schmitt-trigger inputs for noise-immune signal conditioning. Available in stock worldwide with competitive pricing for high-volume and prototype orders.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- MAX3243ECDB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6659(MOQ 280)
- 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 MAX3243ECDB?
- Dual-supply operation at 3.3V and 5V eliminates level-shift circuitry in mixed-voltage designs
- Integrated 3 TX / 5 RX channel count reduces component count versus discrete RS-232 solutions
- Schmitt-trigger inputs provide hysteresis for robust reception on noisy RS-232 lines
- EIA/TIA-232-F, V.28 compliant ensuring interoperability with standard serial equipment
What is MAX3243ECDB used for?
The MAX3243ECDB is widely used in industrial automation controllers, embedded systems, and telecommunications equipment requiring multiple RS-232 serial communication channels from a single IC. Its dual 3.3V/5V supply compatibility makes it particularly useful in mixed-voltage board designs where legacy RS-232 ports must interface with modern low-voltage microcontrollers and FPGAs.
What are the specifications of MAX3243ECDB?
| Reach Compliance Code | Compliant |
| 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 | 5V |
| 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 | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the MAX3243ECDB datasheet?
MAX3243ECDB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for MAX3243ECDB?
Compatible alternatives and drop-in replacements for MAX3243ECDB:
Frequently Asked Questions
What supply voltages does the MAX3243ECDB support?
The MAX3243ECDB operates from both 3.3V and 5V single supplies, making it versatile for modern low-power designs and legacy 5V systems alike. No external level translation is needed when interfacing 3.3V microcontrollers with RS-232 ports on the same board.
How many transmitter and receiver channels does the MAX3243ECDB provide?
It integrates 3 RS-232 transmitters and 5 receivers (3 TX / 5 RX), complying with EIA/TIA-232-F and V.28 standards. This high channel count in a single 28-pin SOIC package replaces multiple discrete transceivers and significantly reduces PCB area and BOM cost.
What interface standard does the MAX3243ECDB comply with?
The device conforms to EIA-232-F, TIA-232-F, and V.28 standards, ensuring compatibility with virtually all standard RS-232 serial communication equipment including modems, industrial controllers, barcode scanners, and legacy PC serial ports operating at typical baud rates up to 460.8 kbps.
What is the significance of Schmitt-trigger inputs on the MAX3243ECDB?
Schmitt-trigger inputs add hysteresis to each receiver input, improving noise immunity on slow-slewing or noisy RS-232 lines. This prevents false triggering caused by cable-induced noise or crosstalk, which is especially important in industrial environments where long cable runs and EMI are common.
What package does the MAX3243ECDB come in?
The MAX3243ECDB is available in a 28-pin SOIC (Small Outline Integrated Circuit) surface-mount package, designated R-PDSO-G28 per JESD-30. This standard package is compatible with automated PCB assembly processes and is widely stocked by major distributors worldwide.
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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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 280+ | $0.7201 | $201.63 |
| 365+ | $0.6930 | $252.94 |
| 455+ | $0.6659 | $302.98 |
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