MAX3232IDBE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments MAX3232IDBE4 is a dual RS-232 line driver/receiver IC supporting 3V to 5.5V supply operation with Schmitt-trigger inputs and EIA-232-F compliance. It integrates two drivers and two receivers with internal charge-pump capacitors, enabling UART-to-RS-232 conversion in a compact SOIC-16 package.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- MAX3232IDBE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MAX3232IDBE4?
- Operates from 3V to 5.5V supply covering both 3.3V and 5V logic systems without level shifting
- Dual RS-232 drivers and receivers compliant with EIA-232-F and TIA-232-F standards
- Schmitt-trigger receiver inputs for noise-immune signal detection in industrial environments
- On-chip charge pump with four external 0.1µF capacitors generates ±5V RS-232 output swing
- SOIC-16 package with ESD protection up to 15kV on RS-232 lines
What is MAX3232IDBE4 used for?
The MAX3232IDBE4 is widely used to connect microcontrollers and DSPs with RS-232 serial ports on industrial equipment, test instruments, and embedded computing boards. Its 3V to 5.5V supply range makes it a direct fit for 3.3V MCU systems such as ARM Cortex-M designs communicating with legacy RS-232 peripherals. It also serves in GPS receivers, barcode scanners, and factory automation terminals where reliable full-duplex RS-232 communication over cables up to 15m is needed.
What are the specifications of MAX3232IDBE4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | CAN ALSO OPERATE WITH 5V SUPPLY |
| Differential Output | NO |
| Driver Number of Bits | 2 |
| 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-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 2 |
| Out Swing-Min | 10V |
| Output Low Current-Max | 0.0016A |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Receive Delay-Max | 300ns |
| Receiver Number of Bits | 2 |
| 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 | BICMOS |
| Temperature Grade | INDUSTRIAL |
| 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 | 300ns |
| 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 |
Where can I find the MAX3232IDBE4 datasheet?
MAX3232IDBE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for MAX3232IDBE4?
Compatible alternatives and drop-in replacements for MAX3232IDBE4:
Frequently Asked Questions
Can the MAX3232IDBE4 operate from a 3.3V rail, and what RS-232 output swing does it produce?
Yes, the MAX3232IDBE4 operates from 3V to 5.5V, including 3.3V systems. Its internal charge-pump circuit generates ±5V output swing on the RS-232 transmit lines, meeting EIA-232-F requirements for reliable communication over cables up to 15 meters without an external power supply.
How many serial channels does the MAX3232IDBE4 support for UART-to-RS-232 conversion?
The MAX3232IDBE4 integrates 2 RS-232 drivers and 2 receivers, supporting 2 full-duplex serial channels simultaneously. This makes it suitable for connecting a dual-UART microcontroller to two independent RS-232 devices or using one channel for data and one for handshaking signals, all from a single SOIC-16 IC.
When should a designer choose MAX3232IDBE4 over a 5V-only RS-232 transceiver?
MAX3232IDBE4 is the better choice when the host MCU runs on 3.3V, such as ARM Cortex-M or STM32 devices, because its 3V minimum supply eliminates the need for a 5V rail dedicated to the transceiver. The Schmitt-trigger inputs also add 0.5V hysteresis for noise rejection, reducing data errors in electrically noisy industrial environments where a standard 5V-only transceiver would require additional filtering.
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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.
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