Overview
The ST3232BDR, produced by STMicroelectronics, is a 3 V powered EIA/TIA-232 and V.28/V.24 communication interface. This device is designed with low power requirements and high data-rate capabilities, making it suitable for a variety of applications. It features a proprietary low dropout transmitter output stage, ensuring true RS-232 performance from 3 to 5.5 V supplies. The device requires only four small 0.1 µF standard external capacitors for operation from a 3 V supply.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | - | 5.5 | V |
| Supply Current (ISUPPLY) | 0.3 | 1 | - | mA |
| Data Rate | 250 | - | - | kbps |
| Slew Rate | 6 | - | - | V/µs |
| RS-232 Input Threshold Low (VRIH) | 0.6 | 1.1 | - | V (at VCC = 3.3 V) |
| RS-232 Input Threshold High (VRIH) | 1.5 | 2.4 | - | V (at VCC = 3.3 V) |
| Input Hysteresis | 0.3 | - | - | V |
| Input Resistance (RRIN) | 3 | - | 7 | kΩ |
| Operating Temperature | -40 | - | 85 | °C |
| Package | - | - | - | SO16, SO16L, TSSOP16 |
Key Features
- Low power consumption: 300 µA supply current
- High data rate: Minimum guaranteed data rate of 300 kbps
- High slew rate: Minimum guaranteed slew rate of 6 V/µs
- Compliance with EIA/TIA-232 specifications down to 3 V
- Available in SO16, SO16L, and TSSOP16 packages
- Requires only four small 0.1 µF external capacitors for operation from a 3 V supply
- Two receivers and two drivers
Applications
- Notebooks, subnotebooks, and palmtop computers
- Battery-powered equipment
- Hand-held equipment
- Peripherals
- Printers
Q & A
- What is the operating voltage range of the ST3232BDR?
The ST3232BDR operates from 3 to 5.5 V.
- What is the minimum guaranteed data rate of the ST3232BDR?
The minimum guaranteed data rate is 300 kbps.
- What is the slew rate of the ST3232BDR?
The minimum guaranteed slew rate is 6 V/µs.
- Does the ST3232BDR meet EIA/TIA-232 specifications?
- What packages are available for the ST3232BDR?
- How many receivers and drivers does the ST3232BDR have?
- What is the typical supply current of the ST3232BDR?
- What are the typical applications of the ST3232BDR?
- What is the operating temperature range of the ST3232BDR?
- Does the ST3232BDR require external capacitors for operation?
