Overview
The ST3232CD, produced by STMicroelectronics, is a 3V powered EIA/TIA-232 and V.28/V.24 communication interface. It is designed with low power requirements and high data-rate capabilities, making it suitable for a variety of applications. The device features a proprietary low dropout transmitter output stage, which ensures true RS-232 performance from 3 to 5.5V supplies. It requires only four small 0.1µF external capacitors for operation from a 3V supply. The ST3232CD includes two receivers and two drivers, and it is guaranteed to operate at data rates of up to 250 kbps while maintaining RS-232 output levels.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | -0.3 to 6 | V |
| Supply Current | 300 | µA |
| Minimum Guaranteed Data Rate | 300 | kbps |
| Minimum Guaranteed Slew Rate | 6 | V/µs |
| Operating Temperature Range | 0 to 70 °C (or -40 to 85 °C for some packages) | °C |
| Package Types | SO16, SO16L, TSSOP16 | |
| RS-232 Input Threshold High | 1.5 to 2.4 | V |
| RS-232 Input Threshold Low | 0.6 to 1.5 | V |
| Input Hysteresis | 0.3 | V |
| Input Resistance | 3 to 7 | kΩ |
Key Features
- Low power consumption with a supply current of 300 µA.
- High data-rate capabilities, with a minimum guaranteed data rate of 300 kbps.
- High slew rate of 6 V/µs, ensuring fast signal transitions.
- Meets EIA/TIA-232 specifications down to 3V, ensuring compatibility with a wide range of systems.
- Available in various packages including SO16, SO16L, and TSSOP16, offering flexibility in design.
- Requires only four small 0.1µF external capacitors for operation from a 3V supply.
Applications
- Notebooks, subnotebooks, and palmtop computers.
- Battery-powered equipment.
- Hand-held equipment.
- Peripherals and printers.
Q & A
- What is the supply voltage range for the ST3232CD?
The supply voltage range for the ST3232CD is from 3 to 5.5V.
- What is the minimum guaranteed data rate of the ST3232CD?
The minimum guaranteed data rate is 300 kbps.
- What is the slew rate of the ST3232CD?
The minimum guaranteed slew rate is 6 V/µs.
- Does the ST3232CD meet EIA/TIA-232 specifications?
- What packages are available for the ST3232CD?
The ST3232CD is available in SO16, SO16L, and TSSOP16 packages.
- How many receivers and drivers does the ST3232CD have?
The ST3232CD has two receivers and two drivers.
- What is the typical operating temperature range for the ST3232CD?
The typical operating temperature range is 0 to 70 °C, though some packages can operate from -40 to 85 °C.
- What are the external capacitor requirements for the ST3232CD?
The device requires four small 0.1µF external capacitors for operation from a 3V supply.
- What are some common applications for the ST3232CD?
- Is the ST3232CD RoHS compliant?
