Overview
The TRS3227EIDBR is a 3-V to 5.5-V single-channel RS-232 line driver/receiver produced by Texas Instruments. This device is designed to meet or exceed the requirements of TIA/EIA-232-F and ITU v.28 standards, providing a reliable electrical interface between an asynchronous communication controller and the serial-port connector. It features a dual charge-pump circuit with ±15-kV IEC ESD protection and operates at data-signaling rates of up to 1 Mbit/s. The device is packaged in a 16-pin SSOP (DB) package and is suitable for a wide range of applications, including battery-powered, hand-held, and portable equipment.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3 to 5.5 | V |
| Operating Temperature Range | -40 to 85 | °C |
| Data Signaling Rate | Up to 1 Mbit/s | |
| Driver Output Slew Rate | Up to 30 V/μs | |
| Standby Current | 1 μA (typ) | |
| ESD Protection | ±15 kV Human-Body Model, ±8 kV IEC61000-4-2 Contact Discharge, ±15 kV IEC61000-4-2 Air-Gap Discharge | |
| Package Type | SSOP (DB) 16 pins |
Key Features
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards
- Operates with a 3-V to 5.5-V supply voltage
- Operates at data-signaling rates of up to 1 Mbit/s
- Low standby current of 1 μA (typ)
- Accepts 5-V logic input with a 3.3-V supply
- Designed to be interchangeable with industry standard '3227E devices
- Latch-up performance exceeds 100 mA per JESD 78, Class II
- ±15 kV IEC ESD protection for RS-232 I/O pins
- Auto-powerdown plus feature for power savings
- Packaged in plastic shrink small-outline package (SSOP)
Applications
- Battery-powered, hand-held, and portable equipment
- PDAs and palmtop PCs
- Notebooks, sub-notebooks, and laptops
- Digital cameras
- Mobile phones and wireless devices
Q & A
- What is the operating voltage range of the TRS3227EIDBR?
The TRS3227EIDBR operates with a supply voltage range of 3 V to 5.5 V.
- What are the data signaling rates supported by the TRS3227EIDBR?
The device supports data signaling rates of up to 1 Mbit/s.
- What type of ESD protection does the TRS3227EIDBR offer?
The device offers ±15 kV Human-Body Model, ±8 kV IEC61000-4-2 Contact Discharge, and ±15 kV IEC61000-4-2 Air-Gap Discharge ESD protection.
- How does the auto-powerdown plus feature work?
The auto-powerdown plus feature automatically disables the drivers for power savings when the RS-232 cable is disconnected or the drivers of the connected peripherals are inactive for more than 30 seconds. It turns on again when it senses a valid transition at any driver or receiver input.
- What is the typical standby current of the TRS3227EIDBR?
The typical standby current is 1 μA.
- What package type is the TRS3227EIDBR available in?
The device is packaged in a 16-pin SSOP (DB) package.
- Is the TRS3227EIDBR compatible with 5-V logic inputs?
Yes, it accepts 5-V logic inputs even with a 3.3-V supply.
- What are some common applications of the TRS3227EIDBR?
Common applications include battery-powered, hand-held, and portable equipment, PDAs, palmtop PCs, notebooks, digital cameras, and mobile phones.
- Does the TRS3227EIDBR meet industry standards for RS-232 interfaces?
Yes, it meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards.
- What is the operating temperature range of the TRS3227EIDBR?
The operating temperature range is -40°C to 85°C for the TRS3227EI version.
