Overview
The SN75155DRE4, produced by Texas Instruments, is a monolithic line driver and receiver designed to meet the requirements of the standard interface between data terminal equipment and data communication equipment as defined by ANSI EIA/TIA-232-E and ITU Recommendation V.28. This device is characterized for operation from 0°C to 70°C and is suitable for a wide range of supply voltages (VCC = 4.5 V to 15 V and VCC− = −4.5 V to −15 V). It features low power consumption of 130 mW and includes a built-in 5-V regulator. The SN75155DRE4 is TTL compatible and provides response control for input threshold shifting and noise filtering.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage, VCC+ | 4.5 | 12 | 15 | V |
| Supply Voltage, VCC− | −4.5 | −12 | −15 | V |
| Output Voltage, Driver, VO(D) | ±15 | V | ||
| Input Voltage, Receiver, VI(R) | −25 | 25 | V | |
| High-Level Input Voltage, Driver, VIH | 2 | V | ||
| Low-Level Input Voltage, Driver, VIL | 0.8 | V | ||
| Response Control Current | ±5.5 | mA | ||
| Output Current, Receiver, IO(R) | 24 | mA | ||
| Operating Free-Air Temperature, TA | 0 | 70 | °C | |
| Propagation Delay Time, Low- to High Level Output (Driver) | 250 | 480 | ns | |
| Propagation Delay Time, High- to Low Level Output (Driver) | 80 | 150 | ns |
Key Features
- Meets or exceeds the requirements of ANSI EIA/TIA-232-E and ITU Recommendation V.28.
- 10-mA current limited output.
- Wide range of supply voltage: VCC = 4.5 V to 15 V and VCC− = −4.5 V to −15 V.
- Low power consumption: 130 mW.
- Built-in 5-V regulator.
- Response control provides input threshold shifting and noise filtering.
- Power-off output resistance: 300 Ω (typical).
- Driver input is TTL compatible.
Applications
The SN75155DRE4 is suitable for various applications requiring RS-232 interface compatibility, including:
- Data terminal equipment.
- Data communication equipment.
- Industrial control systems.
- Point-of-sale terminals.
- Remote monitoring and control systems.
Q & A
- What is the operating temperature range of the SN75155DRE4?
The SN75155DRE4 operates from 0°C to 70°C.
- What are the supply voltage ranges for the SN75155DRE4?
The supply voltage ranges are VCC = 4.5 V to 15 V and VCC− = −4.5 V to −15 V.
- Is the SN75155DRE4 TTL compatible?
- What is the purpose of the response control input?
The response control input provides input threshold shifting and noise filtering.
- What is the power consumption of the SN75155DRE4?
The power consumption is approximately 130 mW.
- Does the SN75155DRE4 have a built-in regulator?
- What is the maximum output current of the receiver?
The maximum output current of the receiver is 24 mA.
- What are the propagation delay times for the driver section?
The propagation delay times are 250 ns to 480 ns for low-to-high level output and 80 ns to 150 ns for high-to-low level output.
- Is the SN75155DRE4 suitable for new designs?
No, the SN75155DRE4 is not recommended for new designs as it has been announced for discontinuation.
- What standards does the SN75155DRE4 meet?
The SN75155DRE4 meets or exceeds the requirements of ANSI EIA/TIA-232-E and ITU Recommendation V.28.
