Overview
The SN65C3232EDB, produced by Texas Instruments, is a dual-channel RS-232 transceiver designed to provide a reliable and efficient interface between an asynchronous communication controller and a serial-port connector. This device operates within a voltage range of 3-V to 5.5-V and supports data signaling rates up to 1 Mbit/s. It features a dual charge-pump circuit that requires four external capacitors, enabling operation from a single supply voltage. The SN65C3232EDB also includes ±15-kV ESD protection for RS-232 pins, ensuring robustness against electrical discharges.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 3 to 5.5 | V |
| Data Signaling Rate | Up to 1 | Mbit/s |
| Supply Current | 300 | μA (typical) |
| External Capacitors | 4 × 0.1 | μF |
| ESD Protection (HBM) | ±15 kV | |
| ESD Protection (IEC 61000-4-2 Air-gap discharge) | ±15 kV | |
| ESD Protection (IEC 61000-4-2 Contact discharge) | ±8 kV | |
| Operating Temperature | -40 to 85 | °C |
| Package Type | 16-SSOP | |
| Number of Drivers/Receivers | 2/2 | |
| Duplex | Full | |
| Receiver Hysteresis | 300 mV |
Key Features
- Operates with 3-V to 5.5-V VCC supply.
- Supports data signaling rates up to 1 Mbit/s.
- Low supply current: 300 μA typical.
- Requires four external capacitors (0.1 μF each).
- Accepts 5-V logic input with a 3.3-V supply.
- ±15-kV ESD protection for RS-232 pins using the human-body model (HBM) and IEC 61000-4-2 standards.
- Outputs are protected against shorts to ground.
- Meets the requirements of TIA/EIA-232-F.
Applications
- Industrial PCs
- Wired networking
- Data center and enterprise computing
- Battery-powered systems
- Notebooks and laptops
- Palmtop PCs
- Hand-held equipment
Q & A
- What is the operating voltage range of the SN65C3232EDB?
The SN65C3232EDB operates within a voltage range of 3-V to 5.5-V.
- What is the maximum data signaling rate supported by the SN65C3232EDB?
The device supports data signaling rates up to 1 Mbit/s.
- How many external capacitors are required for the SN65C3232EDB, and what is their value?
The device requires four external capacitors, each with a value of 0.1 μF.
- What level of ESD protection does the SN65C3232EDB offer?
The device offers ±15-kV ESD protection for RS-232 pins using the human-body model (HBM) and IEC 61000-4-2 standards.
- What is the typical supply current of the SN65C3232EDB?
The typical supply current is 300 μA.
- Does the SN65C3232EDB support 5-V logic input with a 3.3-V supply?
- What are the key applications of the SN65C3232EDB?
The device is used in industrial PCs, wired networking, data center and enterprise computing, battery-powered systems, notebooks, laptops, palmtop PCs, and hand-held equipment.
- What is the package type of the SN65C3232EDB?
The device is packaged in a 16-SSOP (Shrink Small Outline Package).
- Does the SN65C3232EDB meet any specific industry standards?
- What is the operating temperature range of the SN65C3232EDB?
The operating temperature range is -40°C to 85°C.
