SN65C3232EDBRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN65C3232EDBRG4 is a dual-channel RS-232 line transceiver from Texas Instruments, operating from a 3 V to 5.5 V single supply with integrated charge-pump voltage doublers and inverters. It provides two driver and two receiver channels compliant with the EIA-232 standard, with Schmitt-trigger inputs for improved noise immunity. Packaged in a 16-pin SSOP, it suits industrial serial communication interfaces, point-of-sale terminals, and embedded system UART ports.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN65C3232EDBRG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.3600(MOQ 119)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual RS-232 driver/receiver pair compliant with EIA-232 standard
- 3 V to 5.5 V single supply with internal charge-pump for ±5 V driver output
- Schmitt-trigger receiver inputs for improved noise immunity on long cable runs
- Data rate up to 235 kbps for standard serial communication links
- Low power shutdown mode reducing supply current to 1 µA
- 5-V tolerant interface compatible with 3.3 V and 5 V MCU UART pins
- 16-pin SSOP package minimizing PCB footprint versus DIP alternatives
Applications
The SN65C3232EDBRG4 is used in embedded systems that require RS-232 serial ports for communication with industrial equipment, test instruments, and legacy serial peripherals. Point-of-sale terminals and retail kiosk controllers use it to interface with receipt printers, barcode scanners, and cash drawers through standard DB-9 connectors. It also suits GPS receivers, modems, and human-machine interface panels where a 3.3 V MCU UART must drive long RS-232 cable runs up to several meters.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | ALSO OPERATES 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 |
| 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 (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 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN65C3232EDBRG4:
Frequently Asked Questions
What is the maximum data rate supported by the SN65C3232EDBRG4 on an RS-232 link?
The SN65C3232EDBRG4 supports data rates up to 235 kbps, well above the classic 115.2 kbps maximum used by most serial UART applications. This headroom allows the device to operate reliably at standard baud rates even with cable capacitance loading and still leaves room for faster proprietary protocols on short cable runs under 5 meters.
How does the internal charge pump in the SN65C3232EDBRG4 eliminate the need for a dual-polarity supply?
The integrated charge-pump circuit uses four small external capacitors (typically 100 nF each) to boost and invert the 3 V to 5.5 V single supply into the ±5 V to ±7 V swing required by the EIA-232 standard. This removes the need for a separate negative power rail, simplifying the BOM and reducing PCB area compared to transceiver designs that require an external ±12 V power supply.
Can the SN65C3232EDBRG4 interface directly with a 3.3 V MCU UART without additional level-shifting logic?
Yes. The receiver inputs accept signals from ±25 V RS-232 line levels and produce CMOS-compatible logic output at the VCC rail, which can be 3.3 V. The driver inputs accept 3.3 V logic signals directly from the MCU UART TX pin because the device is 5-V tolerant on its logic-side inputs. No separate level translator is required when VCC is 3.3 V.
How does the shutdown mode of the SN65C3232EDBRG4 benefit battery-powered portable devices?
In shutdown mode the SN65C3232EDBRG4 drops supply current to approximately 1 µA compared to a typical active current of 1 mA. On a 1000 mAh lithium cell, keeping the device in shutdown between communication bursts can extend battery life by several orders of magnitude compared to leaving it continuously active, making it practical for intermittently connected handheld or wearable devices.
Which industrial applications benefit from the Schmitt-trigger inputs on the SN65C3232EDBRG4's receivers?
Schmitt-trigger receiver inputs with typically 0.5 V of hysteresis reject noise spikes on RS-232 cable runs exposed to electromagnetic interference in factory automation and motor drive environments. Applications such as PLC programming ports, CNC machine serial interfaces, and industrial sensor gateways benefit because the hysteresis prevents false transitions caused by ground noise, capacitive coupling, or long cable reflections at baud rates up to 115.2 kbps.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 119+ | $1.6874 | $200.80 |
| 154+ | $1.6239 | $250.08 |
| 193+ | $1.5605 | $301.18 |
| 2000+ | $1.3600 | $2720.00 |
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