Overview
The ST3232BWR, 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 that ensures 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 and includes two receivers and two drivers.
Key Specifications
| Parameter | Test Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Supply Current (ISUPPLY) | No Load, VCC = 3V ± 10%, TA = 25°C | 0.3 | 1 | 2 | mA |
| Data Transfer Rate (DR) | RL = 3kΩ, CL2 = 1000pF, one transmitter switching | 300 | 400 | - | kbps |
| Transition Slew Rate (SRT) | TA = 25°C, RL = 3kΩ to 7kΩ, VCC = 3.3V, CL = 150pF to 1000pF | 6 | - | 30 | V/µs |
| Propagation Delay Input to Output (tPHLR, tPLHR) | RXIN = RXOUT, CL = 150pF | 0.2 | - | - | µs |
| Input Logic Threshold Low (VTIL) | T-IN (1) | 0.8 | - | - | V |
| Package | - | - | - | SO16, SO16L, TSSOP16 | - |
| Temperature Range | - | -40 to 85 °C | - | - | °C |
Key Features
- Low power consumption: 300 µA supply current
- High data-rate capabilities: minimum guaranteed data rate of 300 kbps
- High slew rate: minimum guaranteed slew rate of 6 V/µs
- Meets EIA/TIA-232 specifications down to 3 V
- Available in SO16, SO16L, and TSSOP16 packages
- Two receivers and two drivers
- Requires only four small 0.1 µF standard external capacitors for operation from a 3 V supply
Applications
The ST3232BWR is typically used in various applications including:
- Notebooks, subnotebooks, and palmtop computers
- Battery-powered equipment
- Hand-held equipment
- Peripherals
- Printers
Q & A
- What is the supply voltage range for the ST3232BWR?
The ST3232BWR operates from a supply voltage range of 3 to 5.5 V.
- What is the minimum guaranteed data rate of the ST3232BWR?
The minimum guaranteed data rate is 300 kbps.
- What is the slew rate of the ST3232BWR?
The minimum guaranteed slew rate is 6 V/µs.
- Does the ST3232BWR meet EIA/TIA-232 specifications?
- How many receivers and drivers does the ST3232BWR have?
The device has two receivers and two drivers.
- What are the typical applications for the ST3232BWR?
Typical applications include notebooks, subnotebooks, palmtop computers, battery-powered equipment, hand-held equipment, peripherals, and printers.
- What packages is the ST3232BWR available in?
The device is available in SO16, SO16L, and TSSOP16 packages.
- What is the temperature range for the ST3232BWR?
The temperature range is -40 to 85 °C.
- How much supply current does the ST3232BWR consume?
The supply current is 300 µA.
- What external capacitors are required for the ST3232BWR?
The device requires four small 0.1 µF standard external capacitors for operation from a 3 V supply.
