MAX3222EIDBG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The MAX3222EIDBG4 is a dual RS-232 line driver/receiver IC operating from a 3 V to 5.5 V single supply with integrated charge pump capacitors. It provides 2 drivers and 2 receivers with Schmitt trigger inputs for robust serial communication in industrial and telecom equipment. Available in a 20-pin SOIC package.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- MAX3222EIDBG4 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 MAX3222EIDBG4?
- Dual RS-232 drivers and receivers with integrated charge pump, requiring only 4 external 100 nF capacitors
- Operates from 3 V to 5.5 V single supply, enabling 3.3 V system compatibility
- Schmitt trigger receiver inputs for improved noise immunity on long cable runs
- Compliant with EIA/TIA-232-F and V.28 RS-232 interface standards
- Low supply current shutdown mode for power-sensitive portable applications
- 20-pin SOIC package with extended industrial temperature rating
What is MAX3222EIDBG4 used for?
The MAX3222EIDBG4 is widely used in industrial instrumentation, point-of-sale terminals, and embedded systems requiring RS-232 serial ports driven from a 3.3 V logic supply. It is also found in telecommunications equipment, GPS modules, and barcode scanners where a compact multi-channel RS-232 interface with minimal external components is required.
What are the specifications of MAX3222EIDBG4?
| YTEOL | 0 |
| Additional Feature | ALSO OPERATES AT 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-G20 |
| JESD-609 Code | e4 |
| Number of Functions | 2 |
| Out Swing-Min | 10V |
| Output Characteristics | 3-STATE |
| Output Low Current-Max | 0.0016A |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP20,.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 (Ni/Pd/Au) |
| 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 MAX3222EIDBG4 datasheet?
MAX3222EIDBG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for MAX3222EIDBG4?
Compatible alternatives and drop-in replacements for MAX3222EIDBG4:
Frequently Asked Questions
Can MAX3222EIDBG4 operate directly from a 3.3 V supply without a separate RS-232 voltage generator?
Yes. The MAX3222EIDBG4 includes an integrated charge pump that generates the ±5.5 V RS-232 output levels from a 3 V to 5.5 V supply, requiring only 4 external 100 nF capacitors. No separate DC-DC converter or ±12 V rail is needed, simplifying 3.3 V system board design.
How does the Schmitt trigger input on MAX3222EIDBG4 improve reliability on noisy serial lines?
The Schmitt trigger receiver inputs provide hysteresis, typically 0.5 V, which prevents false triggering on slow-slewing or noisy RS-232 signals common on long cable runs. This improves bit-error immunity in industrial environments with high electromagnetic interference, without requiring additional filter components.
What package and pin count does MAX3222EIDBG4 use, and how does it compare to a 16-pin RS-232 IC?
The MAX3222EIDBG4 uses a 20-pin SOIC package, providing 2 drivers and 2 receivers plus dedicated charge pump capacitor pins in a standard SMT footprint. Compared to 16-pin single-channel RS-232 ICs, the 20-pin dual-channel device halves the component count for designs needing 2 independent RS-232 ports.
What compliance standards does MAX3222EIDBG4 meet for use in telecom and industrial serial communication equipment?
The MAX3222EIDBG4 is compliant with EIA-232-F, TIA-232-F, and ITU-T V.28 interface standards, covering the electrical and timing requirements for RS-232 serial communication. These certifications are required for equipment entering regulated telecom and industrial markets in North America and Europe.
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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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