Overview
The MC1488N, produced by Texas Instruments, is a monolithic quadruple line driver designed to interface data terminal equipment with data communications equipment. It conforms to the specifications of ANSI EIA/TIA-232-E and ITU Recommendation V.28. This device is part of a family that includes the SN55188 and SN75188, each characterized for different temperature ranges. The MC1488N operates from 0°C to 70°C, making it suitable for a wide range of commercial applications.
Key Specifications
| Characteristic | Value | Unit |
|---|---|---|
| Supply Voltage Range | 7.5 to 15 | Vdc |
| Operating Temperature Range | 0 to 70 | °C |
| Current-Limited Output | ±10 mA typical | mA |
| Power-Off Output Impedance | 300 Ω minimum | Ω |
| Propagation Delay Time (tPLH, tPHL) | 275 to 350 ns | ns |
| Rise and Fall Time (tTLH, tTHL) | 45 to 100 ns | ns |
| Input Compatibility | Compatible with most TTL circuits | |
| Package Type | 14-PDIP | |
| Number of Terminals | 14 |
Key Features
- Meets or exceeds the requirements of ANSI EIA/TIA-232-E and ITU Recommendation V.28.
- Current-limited output: ±10 mA typical.
- Power-off output impedance: 300 Ω minimum.
- Slew rate control by load capacitor.
- Flexible supply-voltage range: 7.5 V to 15 V.
- Input compatible with most TTL circuits.
- Output polarity: Inverted.
- Available in Pb-free packages.
Applications
The MC1488N is designed to interface data terminal equipment with data communications equipment. It is commonly used in applications that require compliance with EIA-232D standards, such as:
- Data terminal equipment (DTE) and data communications equipment (DCE) interfaces.
- Serial communication systems.
- Industrial control systems.
- Telecommunications equipment.
Q & A
- What is the operating temperature range of the MC1488N?
The MC1488N operates from 0°C to 70°C.
- What are the supply voltage requirements for the MC1488N?
The supply voltage range is from 7.5 V to 15 V.
- Is the MC1488N compatible with TTL circuits?
Yes, the MC1488N is compatible with most TTL circuits.
- How is the slew rate controlled in the MC1488N?
The slew rate is controlled by connecting a capacitor to each driver output.
- What is the typical current-limited output of the MC1488N?
The typical current-limited output is ±10 mA.
- What is the power-off output impedance of the MC1488N?
The power-off output impedance is 300 Ω minimum.
- What package types are available for the MC1488N?
The MC1488N is available in a 14-PDIP package.
- Is the MC1488N Pb-free?
Yes, Pb-free packages are available.
- What standards does the MC1488N comply with?
The MC1488N complies with ANSI EIA/TIA-232-E and ITU Recommendation V.28.
- What is the typical propagation delay time of the MC1488N?
The typical propagation delay time (tPLH, tPHL) is 275 to 350 ns.
