Overview
The TRSF3232EIDR, produced by Texas Instruments, is a 3V to 5.5V two-channel RS-232 line driver and receiver integrated circuit. This device is designed to provide the electrical interface between an asynchronous communication controller and the serial-port connector. It operates at data signaling rates up to 1 Mbit/s and features a dual charge-pump circuit that allows operation from a single 3-V to 5.5-V supply. The TRSF3232EIDR is known for its low supply current, high ESD protection, and compact packaging options, making it suitable for a variety of applications including industrial PCs, wired networking, and battery-powered systems.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Supply Voltage Range (VCC) | -0.3 | - | 6 | V |
| Operating Free-Air Temperature (TA) | -40 | - | 85 | °C |
| Driver High-Level Output Voltage (VOH) | 5 | - | 5.5 | V |
| Driver Low-Level Output Voltage (VOL) | -5 | - | -5.4 | V |
| Supply Current (ICC) | 0.3 | - | 1 | mA |
| Maximum Data Rate | - | - | 1000 | kbit/s |
| ESD Protection (HBM) | - | - | ±15 kV | - |
Key Features
- Operates with 3V to 5.5V VCC supply.
- Operates up to 1 Mbit/s data signaling rate.
- Low supply current: 300 μA typical.
- External capacitors: 4 × 0.1 μF required.
- Accepts 5-V logic input with 3.3-V supply.
- High ESD protection: ±15-kV Human-Body Model (HBM), ±15-kV IEC 61000-4-2 air-gap discharge, and ±8-kV IEC 61000-4-2 contact discharge.
- Available in compact packages including near chip scale QFN (3mmx3mm), which is 85% smaller than SOIC-16.
Applications
- Industrial PCs.
- Wired networking.
- Data center and enterprise computing.
- Battery-powered systems.
- PDAs, notebooks, and palmtop PCs.
- Hand-held equipment.
Q & A
- What is the operating voltage range of the TRSF3232EIDR?
The TRSF3232EIDR operates with a supply voltage range of 3V to 5.5V.
- What is the maximum data rate supported by the TRSF3232EIDR?
The device supports data signaling rates up to 1 Mbit/s.
- What is the typical supply current of the TRSF3232EIDR?
The typical supply current is 300 μA.
- What kind of ESD protection does the TRSF3232EIDR offer?
The device offers ±15-kV Human-Body Model (HBM), ±15-kV IEC 61000-4-2 air-gap discharge, and ±8-kV IEC 61000-4-2 contact discharge ESD protection.
- What are the package options available for the TRSF3232EIDR?
The device is available in various packages including SOIC, SSOP, TSSOP, and near chip scale QFN (3mmx3mm).
- Can the TRSF3232EIDR accept 5-V logic input with a 3.3-V supply?
- What is the recommended operating temperature range for the TRSF3232EIDR?
The recommended operating temperature range is -40°C to 85°C.
- What are some typical applications of the TRSF3232EIDR?
Typical applications include industrial PCs, wired networking, data center and enterprise computing, battery-powered systems, PDAs, notebooks, palmtop PCs, and hand-held equipment.
- How many external capacitors are required for the TRSF3232EIDR?
Four external capacitors of 0.1 μF each are required.
- What is the junction-to-ambient thermal resistance for the RGT package?
The junction-to-ambient thermal resistance for the RGT package is 48.8 °C/W.
