Overview
The ST3232CDR, produced by STMicroelectronics, is a 3 V powered EIA/TIA-232 and V.28/V.24 communication interface. This device is designed for low power consumption and high data-rate capabilities, making it suitable for a variety of applications including notebooks, subnotebooks, palmtop computers, battery-powered equipment, hand-held devices, peripherals, and printers. The ST3232CDR features a proprietary low dropout transmitter output stage that ensures true RS-232 performance from 3 to 5.5 V supplies.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | -0.3 to 6 | V |
| Supply Current (ISUPPLY) | 0.3 to 2 | mA |
| Data Transfer Rate | 300 to 400 | kbps |
| Transmitter Output Voltage Swing | ±5 to ±5.4 | V |
| Receiver Input Voltage Range | -25 to 25 | V |
| Input Logic Threshold Low (VTIL) | 0.8 | V |
| Input Logic Threshold High (VTIH) | 2 to 2.4 | V |
| Propagation Delay (tPHLR, tPLHR) | 0.2 µs | µs |
| Transition Slew Rate (SRT) | 6 to 30 | V/µs |
| Package Types | SO16, SO16L, TSSOP16 | |
| Operating Temperature Range | 0 to 70 °C | °C |
Key Features
- Low power consumption with a supply current of 300 µA.
- Guaranteed data rate of 300 kbps with a minimum slew rate of 6 V/µs.
- Meets EIA/TIA-232 specifications down to 3 V supply voltage.
- Proprietary low dropout transmitter output stage for true RS-232 performance.
- Requires only four small external capacitors (0.1 µF each) for operation from a 3 V supply.
- Two receivers and two drivers.
- Available in SO16, SO16L, and TSSOP16 packages.
Applications
The ST3232CDR is typically used in various electronic devices such as notebooks, subnotebooks, palmtop computers, battery-powered equipment, hand-held devices, peripherals, and printers. Its low power consumption and high data-rate capabilities make it an ideal choice for applications requiring reliable serial communication.
Q & A
- What is the supply voltage range for the ST3232CDR? The supply voltage range is from 3 to 5.5 V.
- What is the typical supply current of the ST3232CDR? The typical supply current is 0.3 to 2 mA.
- What is the guaranteed data transfer rate of the ST3232CDR? The guaranteed data transfer rate is 300 kbps.
- What are the package options available for the ST3232CDR? The device is available in SO16, SO16L, and TSSOP16 packages.
- What is the operating temperature range for the ST3232CDR? The operating temperature range is from 0 to 70 °C.
- How many receivers and drivers does the ST3232CDR have? The device has two receivers and two drivers.
- What are the key features of the ST3232CDR's transmitter output stage? The transmitter output stage features a proprietary low dropout design ensuring true RS-232 performance from 3 to 5.5 V supplies.
- What external components are required for the ST3232CDR to operate from a 3 V supply? The device requires four small external capacitors (0.1 µF each).
- What is the slew rate of the ST3232CDR? The transition slew rate is 6 to 30 V/µs.
- What are some typical applications of the ST3232CDR? Typical applications include notebooks, subnotebooks, palmtop computers, battery-powered equipment, hand-held devices, peripherals, and printers.
