Overview
The SN75C3232EDR, produced by Texas Instruments, is a 3-V to 5.5-V two-channel RS-232 line driver/receiver integrated circuit. This device is designed to provide the electrical interface between an asynchronous communication controller and a serial-port connector. It features a dual charge-pump circuit that allows operation from a single 3-V to 5.5-V supply, making it versatile for various applications. The SN75C3232EDR is known for its high data signaling rates, low power consumption, and robust ESD protection, making it suitable for a wide range of industrial and consumer electronics.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3-V to 5.5-V | V |
| Data Signaling Rate | Up to 1 Mbit/s | bps |
| Supply Current | 300 μA (typical) | A |
| External Capacitors | 4 × 0.1 μF | F |
| ESD Protection (HBM) | ±15 kV | V |
| ESD Protection (IEC 61000-4-2 Air-Gap Discharge) | ±15 kV | V |
| ESD Protection (IEC 61000-4-2 Contact Discharge) | ±8 kV | V |
| Operating Temperature Range | 0 to 70 °C | °C |
| Package Type | SOIC (16 pins) | - |
Key Features
- Operates with a 3-V to 5.5-V VCC supply.
- Supports data signaling rates up to 1 Mbit/s.
- Low supply current of 300 μA (typical).
- Accepts 5-V logic input with a 3.3-V supply.
- Includes a dual charge-pump circuit for voltage generation.
- Requires four small external capacitors (0.1 μF each).
- Provides ±15-kV ESD protection for RS-232 pins using the human-body model (HBM) and IEC 61000-4-2 standards.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- Outputs are protected against shorts to ground.
Applications
- Industrial PCs
- Wired networking
- Data center and enterprise computing
- Battery-powered systems
- Notebooks and laptops
- Palmtop PCs and hand-held equipment
- PDAs and other portable devices
Q & A
- What is the operating voltage range of the SN75C3232EDR?
The SN75C3232EDR operates with a supply voltage (VCC) ranging from 3-V to 5.5-V.
- What is the maximum data signaling rate supported by the SN75C3232EDR?
The device supports data signaling rates up to 1 Mbit/s.
- What is the typical supply current of the SN75C3232EDR?
The typical supply current is 300 μA.
- What kind of ESD protection does the SN75C3232EDR offer?
The device offers ±15-kV ESD protection using the human-body model (HBM) and IEC 61000-4-2 standards.
- What type of capacitors are required for the SN75C3232EDR?
The device requires four external capacitors, each 0.1 μF.
- Can the SN75C3232EDR accept 5-V logic input with a 3.3-V supply?
- What is the operating temperature range of the SN75C3232EDR?
The operating temperature range is from 0 to 70 °C.
- What type of package is the SN75C3232EDR available in?
The device is available in a 16-pin SOIC package.
- Is the SN75C3232EDR RoHS compliant?
- What are some common applications of the SN75C3232EDR?
