ST232CTR STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
The ST232CTR is a dual-channel RS-232 line transceiver from STMicroelectronics in a 16-pin TSSOP package. It complies with EIA/TIA-232 and V.28 standards with Schmitt trigger inputs and 200µA maximum input current. From $0.80 in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- ST232CTR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fully compliant with EIA-232, TIA-232, and V.28 serial communication standards ensuring reliable RS-232 interface implementation
- Schmitt trigger inputs with hysteresis improve noise immunity on RS-232 receiver lines in electrically noisy industrial environments
- Compact 16-pin TSSOP lead-free package with dual-driver dual-receiver configuration supporting two independent RS-232 channels
Applications
The ST232CTR is used for RS-232 serial communication interfaces between microcontrollers, FPGAs, or DSPs and legacy serial peripherals, modems, or PC COM ports. It is widely deployed in industrial equipment, embedded communication modules, test and measurement instruments, and automotive diagnostic systems requiring robust EIA-232 compliant serial data links.
Specifications
| Factory Lead Time | 10Weeks |
| YTEOL | 6.72 |
| Differential Output | NO |
| Driver Number of Bits | 2 |
| High Level Input Current-Max | 0.0002A |
| Input Characteristics | SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-232; TIA-232; V.28 |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 2 |
| Out Swing-Min | 10V |
| Output Low Current-Max | 0.0032A |
| 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 |
| Receive Delay-Max | 1000ns |
| Receiver Number of Bits | 2 |
| Supply Current-Max | 10mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| 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) | 40 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for ST232CTR:
Frequently Asked Questions
What serial communication standard does the ST232CTR support?
The ST232CTR is fully compliant with EIA-232, TIA-232, and V.28 serial interface standards, which define the electrical characteristics of RS-232 communications. It provides two drivers and two receivers to support dual-channel RS-232 connections with a maximum data rate typically up to 120kbps at standard cable lengths.
What is the input current specification and input type of the ST232CTR?
The ST232CTR features Schmitt trigger inputs on the receiver side with a maximum high-level input current of 200µA. The Schmitt trigger hysteresis significantly improves noise rejection on long RS-232 cable runs, ensuring reliable data reception even in electrically noisy industrial or automotive environments.
What package does the ST232CTR use and is it lead-free?
The ST232CTR is packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package) with a compact PCB footprint suitable for space-constrained designs. The TR suffix indicates tape-and-reel packaging for automated assembly, and the device is lead-free (RoHS compliant) as indicated by the JESD-609 e4 code.
How many RS-232 channels does the ST232CTR support?
The ST232CTR provides two independent RS-232 channels, each with one driver and one receiver, totaling two drivers and two receivers in a single 16-pin TSSOP package. This makes it suitable for applications requiring two separate full-duplex RS-232 serial ports, such as dual-COM-port communication modules.
What are typical applications for the ST232CTR?
The ST232CTR is commonly used in industrial automation equipment, embedded development boards, serial-over-USB adapters, GPS modules, and legacy serial peripheral interfaces. It is also found in medical devices, test equipment, and building automation systems where reliable RS-232 communication with legacy infrastructure is required.
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