Overview
The TRSF3232EIDBR, produced by Texas Instruments, is a 3V to 5.5V two-channel RS-232 line driver and receiver. This device is designed to provide the electrical interface between an asynchronous communication controller and the serial-port connector. It features a dual charge-pump circuit and offers robust ESD protection, making it suitable for a variety of applications requiring reliable serial communication.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | 3.3 / 5 | 5.5 | V |
| Supply Current (ICC) | 300 | 1 | mA | |
| Data Signaling Rate | 1 | Mbit/s | ||
| Driver Output Slew Rate | 14 | 150 | V/μs | |
| ESD Protection (HBM) | ±15 | kV | ||
| ESD Protection (IEC 61000-4-2 Air-Gap Discharge) | ±15 | kV | ||
| ESD Protection (IEC 61000-4-2 Contact Discharge) | ±8 | kV | ||
| Operating Temperature Range | -40 | 85 | °C | |
| Package Types | D (SOIC), DB (SSOP), DW (SOIC), PW (TSSOP), RGT (VQFN) |
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.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- Robust 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 various package types 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 laptops.
- Palmtop PCs and hand-held equipment.
Q & A
- What is the operating voltage range of the TRSF3232E?
The TRSF3232E operates with a 3V to 5.5V VCC supply.
- What is the maximum data signaling rate of the TRSF3232E?
The device can operate up to 1 Mbit/s.
- What is the typical supply current of the TRSF3232E?
The typical supply current is 300 μA.
- What external capacitors are required for the TRSF3232E?
Four 0.1 μF external capacitors are required.
- Does the TRSF3232E support 5-V logic input with a 3.3-V supply?
- What level of ESD protection does the TRSF3232E 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 available package types for the TRSF3232E?
The device is available in D (SOIC), DB (SSOP), DW (SOIC), PW (TSSOP), and RGT (VQFN) packages.
- What is the operating temperature range of the TRSF3232E?
The operating temperature range is -40°C to 85°C.
- What are some common applications of the TRSF3232E?
Common applications include industrial PCs, wired networking, data center and enterprise computing, battery-powered systems, PDAs, notebooks, laptops, palmtop PCs, and hand-held equipment.
- How does the TRSF3232E provide ESD protection?
The device provides ESD protection through its dual charge-pump circuit and meets the requirements of ±15-kV IEC ESD protection standards.
