ST3232EBTR STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
ST3232EBTR is an EIA-232 dual-channel RS-232 line transceiver from STMicroelectronics, integrating 2 drivers and 2 receivers in a 16-pin TSSOP package with a Schmitt-trigger input and a 3.0 V to 5.5 V supply range. It meets TIA-232, V.24, and V.28 standards and operates at data rates up to 250 kbps for reliable serial communication interfaces. Available from stock worldwide with competitive pricing and fast shipping options.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- ST3232EBTR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4420(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual EIA-232 drivers and receivers in a single 16-pin TSSOP package for compact RS-232 interface designs
- Schmitt-trigger inputs enhance noise immunity on long cable runs and industrial RS-232 links
- 3.0 V to 5.5 V supply compatibility allows direct use with both 3.3 V and 5 V system boards without level shifters
Applications
The ST3232EBTR is designed for embedded systems requiring RS-232 serial communication between microcontrollers and legacy equipment such as industrial PLCs, barcode scanners, and PC serial ports. Its Schmitt-trigger inputs and compliance with EIA-232, TIA-232, V.24, and V.28 standards make it suitable for noisy factory-floor environments with cable runs up to 15 meters. The 16-pin TSSOP footprint allows dense board layouts in space-constrained serial communication modules and gateway devices.
Specifications
| Factory Lead Time | 10Weeks |
| YTEOL | 7.2 |
| 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; TIA-232; V.24; V.28 |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Out Swing-Min | 10V |
| Output Low Current-Max | 0.0016A |
| 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 | 50ns |
| Receiver Number of Bits | 2 |
| Supply Current-Max | 1mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 150ns |
| ## ST3232EBTR Alternates Showing results | Image |
| 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 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for ST3232EBTR:
suggested
suggested
suggested
Frequently Asked Questions
What supply voltage range does ST3232EBTR support and how does it fit into 3.3 V microcontroller designs?
The ST3232EBTR operates from a 3.0 V to 5.5 V supply, making its logic interface directly compatible with 3.3 V MCU GPIO without additional level-translation circuitry. Internal charge-pump capacitors generate the ±5.5 V RS-232 output swing from the single supply, requiring only 4 external capacitors in the range of 100 nF to achieve full EIA-232 compliance.
How many RS-232 channels does ST3232EBTR provide and what data rate is supported for industrial serial links?
ST3232EBTR integrates 2 independent RS-232 drivers and 2 receivers, supporting a maximum data rate of 250 kbps per channel. This is sufficient for standard UART baud rates up to 230400 bps used in barcode scanners, industrial sensors, and legacy PLC communication over cable runs up to 15 meters as defined by the EIA-232 standard.
What noise immunity feature does ST3232EBTR provide for long cable RS-232 connections in industrial environments?
The ST3232EBTR incorporates Schmitt-trigger inputs on its receiver channels, providing hysteresis typically of 0.5 V to improve noise rejection on long RS-232 cable runs. This prevents false triggering caused by reflections, ground potential differences of up to 2 V, and EMI common in factory floors where cable runs may exceed 10 meters.
For a board using both RS-232 and UART peripherals, how does the 16-pin TSSOP package of ST3232EBTR compare to DIP alternatives?
The 16-pin TSSOP package measures approximately 5.0 mm × 4.4 mm with 0.65 mm pin pitch, occupying roughly 70% less board area than an equivalent 16-pin DIP package at 19.9 mm × 7.5 mm. This space saving is critical in compact gateway boards where a 3.3 V MCU connects to both a USB interface and an RS-232 port within a constrained 50 mm × 50 mm PCB footprint.
Related Guides
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.7060 | $0.71 |
| 1000+ | $0.7020 | $702.00 |
| 2500+ | $0.4733 | $1183.25 |
| 5000+ | $0.4591 | $2295.50 |
| 10000+ | $0.4443 | $4442.60 |
| 20000+ | $0.4420 | $8839.40 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”