Overview
The TRS232EIDWR is a RS-232 Interface Integrated Circuit produced by Texas Instruments. This device is designed as a dual RS232 driver and receiver, providing the electrical interface between an asynchronous communication controller and the serial-port connector. It meets the requirements of TIA/EIA-232-F and ITU recommendation V.28 standards.
The TRS232EIDWR operates from a single 3 to 5.5V power supply and includes a charge pump that requires four small external capacitors for operation. The device offers high ESD protection, with ±15kV Human-Body Model (HBM) protection for RS-232 I/O pins, including GND.
Key Specifications
| Parameter | Description | Min | Typical | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage | Operating supply voltage range | 3 | - | 5.5 | V |
| No. of Drivers | Number of RS232 drivers | 2 | - | - | - |
| No. of Receivers | Number of RS232 receivers | 2 | - | - | - |
| Operating Temperature | Operating temperature range | -40°C | - | 85°C | °C |
| Package Type | Package style | SOP, 16-pin | - | - | - |
| ESD Protection | Human-Body Model (HBM) ESD protection | ±15kV | - | - | - |
| Data Signaling Rate | Maximum data signaling rate | - | - | 250kbps | kbps |
Key Features
- Meets or exceeds TIA/EIA-232-F and ITU recommendation V.28 standards.
- Operates from a single 3 to 5.5V power supply with a charge pump requiring four small external capacitors.
- ±15kV Human-Body Model (HBM) ESD protection for RS-232 I/O pins, including GND.
- Supports data signaling rates up to 250kbps.
- Maximum driver output slew rate of 30V/µs.
- Power-down mode with low standby current (1µA) and high-impedance state for drivers.
- Receiver outputs can be placed in the high-impedance state.
- RoHS compliant.
Applications
- Portable devices such as PDAs, notebooks, and laptops.
- Computers and computer peripherals.
- Battery-powered systems and hand-held equipment.
- Terminals and modems.
Q & A
- What is the TRS232EIDWR?
The TRS232EIDWR is a RS-232 Interface Integrated Circuit produced by Texas Instruments, designed as a dual RS232 driver and receiver.
- What are the operating voltage ranges for the TRS232EIDWR?
The device operates from a single 3 to 5.5V power supply.
- What level of ESD protection does the TRS232EIDWR offer?
The device offers ±15kV Human-Body Model (HBM) ESD protection for RS-232 I/O pins, including GND.
- What is the maximum data signaling rate supported by the TRS232EIDWR?
The device supports data signaling rates up to 250kbps.
- How does the power-down mode function in the TRS232EIDWR?
In power-down mode, the device draws only 1µA from the power supply, and the drivers are placed in the high-impedance state while the receivers remain active.
- What package types are available for the TRS232EIDWR?
The device is available in SOP (16-pin) packages.
- Is the TRS232EIDWR RoHS compliant?
- What are some typical applications for the TRS232EIDWR?
Typical applications include portable devices, computers, computer peripherals, battery-powered systems, and hand-held equipment.
- How does the charge pump in the TRS232EIDWR function?
The charge pump requires four small external capacitors to generate the necessary voltage levels for RS-232 operation from a single 3 to 5.5V supply.
- Can the receiver outputs be placed in a high-impedance state?
