Overview
The TRS3243IPWR is a 3-V to 5.5-V multichannel RS-232 line driver and receiver integrated circuit produced by Texas Instruments. This device is designed to provide a single-chip and single-supply interface for IBM PC/AT serial ports, making it ideal for various serial communication applications. It features three line drivers and five line receivers, along with a dual charge-pump circuit that enables operation from a single 3-V to 5.5-V supply. The TRS3243IPWR also includes ±15-kV ESD (HBM) protection on all serial-port connection pins, ensuring robustness against electrostatic discharge.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Main Supply Voltage | 3 V to 5.5 V | V |
| Operating Temperature Range | -40°C to 85°C (TRS3243I), 0°C to 70°C (TRS3243C) | °C |
| Number of Drivers/Receivers | 3/5 | - |
| Data Rate | Up to 250 kbps | kbps |
| Receiver Hysteresis | 500 mV | mV |
| ESD Protection | ±15 kV (HBM) | kV |
| Package Type | 28-TSSOP | - |
| Active Current | 300 μA (typical) | μA |
| Standby Current | 1 μA (typical) | μA |
Key Features
- Operates with a 3-V to 5.5-V VCC supply.
- Single-chip and single-supply interface for IBM PC/AT serial ports.
- RS-232 bus-pin ESD protection of ±15 kV using the human-body model (HBM).
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
- Three drivers and five receivers.
- Operates up to 250 kbps.
- Low active current: 300-μA typical, and low standby current: 1-μA typical.
- External capacitors: 4 × 0.1 μF required.
- Accepts 5-V logic input with a 3.3-V supply.
- Always-active noninverting receiver output (ROUT2B).
- Automatic power-down feature to disable driver outputs when no valid RS-232 signal is sensed.
- Serial-mouse driveability.
Applications
- Battery-powered systems.
- Tablets.
- Notebooks.
- Laptops.
- Hand-held equipment.
Q & A
- What is the operating voltage range of the TRS3243IPWR?
The TRS3243IPWR operates with a 3-V to 5.5-V VCC supply.
- How many drivers and receivers does the TRS3243IPWR have?
The device features three line drivers and five line receivers.
- What is the maximum data rate supported by the TRS3243IPWR?
The device operates up to 250 kbps.
- What kind of ESD protection does the TRS3243IPWR offer?
The device has ±15 kV ESD protection using the human-body model (HBM).
- Does the TRS3243IPWR meet any specific industry standards?
Yes, it meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
- What is the typical active current consumption of the TRS3243IPWR?
The typical active current is 300 μA.
- What is the typical standby current consumption of the TRS3243IPWR?
The typical standby current is 1 μA.
- Does the TRS3243IPWR have any power management features?
Yes, it has an automatic power-down feature to disable driver outputs when no valid RS-232 signal is sensed.
- What type of package is the TRS3243IPWR available in?
The device is available in a 28-TSSOP package.
- What is the operating temperature range of the TRS3243IPWR?
The operating temperature range is -40°C to 85°C (TRS3243I) and 0°C to 70°C (TRS3243C).
