Overview
The ST3232EBD, produced by STMicroelectronics, is a low-power, dual-channel RS-232 transceiver designed for applications requiring reliable serial communication. This device operates from a 3 to 5.5V supply and is optimized for low power consumption, making it suitable for battery-powered and portable devices. The ST3232EBD features enhanced electrostatic discharge (ESD) protection, ensuring robust performance against electrical surges.
The device includes two receivers and two drivers, guaranteeing data rates of up to 250 kbps while maintaining RS-232 output levels. It incorporates a proprietary low-dropout transmitter output stage, enabling true RS-232 performance with a dual charge pump that requires only four small external capacitors.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3 to 5.5 | V |
| ESD Protection | ±15 kV (Human Body Model), ±8 kV (IEC 1000-4-2 contact discharge) | kV |
| Supply Current | 300 μA | μA |
| Data Rate | Up to 250 kbps | kbps |
| Slew Rate | 6 V/μs (minimum guaranteed) | V/μs |
| Operating Temperature | -40 to 85 °C | °C |
| Package Types | SO-16, TSSOP16 | - |
| Number of Drivers/Receivers | 2/2 | - |
Key Features
- ESD protection for RS-232 I/O pins up to ±15 kV (Human Body Model) and ±8 kV (IEC 1000-4-2 contact discharge)
- Low power consumption with a supply current of 300 μA
- Guaranteed data rate of up to 250 kbps
- Minimum guaranteed slew rate of 6 V/μs
- Meets EIA/TIA-232 specifications down to 3 V supply
- Available in SO-16 and TSSOP16 packages
- Proprietary low-dropout transmitter output stage for true RS-232 performance
- Dual charge pump requiring only four small 0.1 μF external capacitors
Applications
- Notebook, subnotebook, and palmtop computers
- Battery-powered equipment
- Hand-held equipment
- Peripherals and printers
- Communications equipment and industrial applications
Q & A
- What is the operating voltage range of the ST3232EBD?
The ST3232EBD operates from a 3 to 5.5V supply.
- What level of ESD protection does the ST3232EBD offer?
The device offers ESD protection up to ±15 kV (Human Body Model) and ±8 kV (IEC 1000-4-2 contact discharge).
- What is the maximum guaranteed data rate of the ST3232EBD?
The device guarantees a data rate of up to 250 kbps.
- What is the typical supply current of the ST3232EBD?
The typical supply current is 300 μA.
- What are the available package types for the ST3232EBD?
The device is available in SO-16 and TSSOP16 packages.
- Does the ST3232EBD meet EIA/TIA-232 specifications?
Yes, it meets EIA/TIA-232 specifications down to a 3 V supply.
- How many drivers and receivers does the ST3232EBD have?
The device has two drivers and two receivers.
- What is the minimum guaranteed slew rate of the ST3232EBD?
The minimum guaranteed slew rate is 6 V/μs.
- What type of charge pump does the ST3232EBD use?
The device uses a dual charge pump that requires only four small 0.1 μF external capacitors.
- What are some common applications for the ST3232EBD?
Common applications include notebook and hand-held devices, battery-powered equipment, peripherals, and industrial applications.
