SN75C3221PWE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments SN75C3221PWE4 is a multichannel EIA-232 line driver and receiver operating from 3 V to 5.5 V. It features Schmitt trigger inputs and a single driver/receiver channel with charge-pump power supply. Available in a 16-pin SOIC package with RoHS compliance and worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN75C3221PWE4 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 SN75C3221PWE4?
- Wide supply range of 3 V to 5.5 V with optional 5 V operation for flexible system integration
- Schmitt trigger inputs for improved noise immunity on EIA-232 serial communication lines
- Single-channel multichannel RS-232 transceiver with integrated charge-pump capacitors in a compact 16-pin SOIC package
What is SN75C3221PWE4 used for?
The SN75C3221PWE4 is designed for RS-232 serial communication interfaces in embedded systems, industrial control equipment, and portable devices. Its wide 3 V to 5.5 V supply range makes it suitable for both 3.3 V and 5 V microcontroller platforms. The integrated charge-pump circuitry reduces external component count, simplifying PCB design for UART-to-RS-232 bridging applications.
What are the specifications of SN75C3221PWE4?
| YTEOL | 0 |
| Additional Feature | CAN ALSO OPERATE WITH A 5V SUPPLY |
| Differential Output | NO |
| Driver Number of Bits | 1 |
| High Level Input Current-Max | 0.000001A |
| Input Characteristics | SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-232 |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| 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 | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Receiver Number of Bits | 1 |
| 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 |
| 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 SN75C3221PWE4 datasheet?
SN75C3221PWE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN75C3221PWE4?
Compatible alternatives and drop-in replacements for SN75C3221PWE4:
Frequently Asked Questions
What supply voltage range does the SN75C3221PWE4 support, and can it work with 3.3 V microcontrollers?
The SN75C3221PWE4 operates from a 3 V to 5.5 V supply, so it works directly with 3.3 V microcontrollers without additional regulators. It can also operate from a 5 V supply, making it compatible with legacy TTL-based systems that require EIA-232 serial communication.
How does the Schmitt trigger input benefit RS-232 signal reception in noisy environments?
Schmitt trigger inputs add hysteresis of typically 0.5 V or more, preventing false triggering caused by slow signal edges or noise on RS-232 lines. This is especially valuable in industrial environments where cable lengths exceed 3 meters and capacitive loading degrades signal integrity on the single-channel receiver.
Which 16-pin package does SN75C3221PWE4 use, and how does that affect board space compared to a 28-pin RS-232 device?
The SN75C3221PWE4 uses a 16-pin SOIC package, occupying significantly less board area than 28-pin multi-channel RS-232 devices. This compact footprint is advantageous for space-constrained designs requiring only 1 driver and 1 receiver channel on an embedded board or industrial interface module.
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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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