Description
The Texas Instruments SN75C188N is a quad bilateral switch driver IC that provides a high level of flexibility and reliability for industrial communication applications. It features bi-MOS technology, making it compatible with both TTL and CMOS logic levels. This device meets or exceeds the requirements of ANSI EIA/TIA-232-E and ITU Recommendation V.28, ensuring reliable data transmission over long distances.
The SN75C188N is designed to drive RS-232 signals and can operate in a wide range of supply voltages, making it suitable for various industrial applications. Its low quiescent current consumption and high output current make it an efficient choice for power-sensitive systems. The device also features on-chip slew rate limiting, which helps prevent electromagnetic interference (EMI) and radio-frequency interference (RFI). Overall, the SN75C188N is a reliable and versatile IC that can be used in a variety of industrial control systems.
Features
According to the product information, the SN75C188N features include:
- Bi-MOS technology with TTL and CMOS compatibility
- Meets or exceeds ANSI EIA/TIA-232-E and ITU Recommendation V.28 requirements
- Very low quiescent current (95 uA typical)
- Current-limited outputs (10 mA typical)
- CMOS-and TTL-compatible inputs
- On-chip slew rate limited to 30 V/us maximum
- Flexible supply voltage range
- Characterized at ±4.5V and ±15V supply voltages
- Functionally interchangeable with Texas Instruments SN75188, Motorola MC1488, and National Semiconductor DS14C88.
These features make the SN75C188N a versatile driver IC suitable for various applications, including industrial settings, PLCs, and power utility systems.
Package
The package type of SN75C188N is PDIP-14 (Pin DIP, 14 pins).
Pinout
The SN75C188N is a 14-pin driver IC with the following pinout:
- Pin 1: VCC (positive supply voltage)
- Pin 2-3: GND (ground)
- Pin 4: OUT (output)
- Pin 5: IN (input)
- Pin 6: RTS (request to send)
- Pin 7: CTS (clear to send)
- Pin 8: DTR (data terminal ready)
- Pin 9: DSR (data set ready)
- Pin 10: GND
- Pin 11-12: VCC
- Pin 13: RTS
- Pin 14: CTS
The SN75C188N is a bi-MOS driver that provides a high-speed, low-power interface for RS-232 communication. It can be used as a transmitter or receiver and features current-limiting outputs to prevent damage from excessive current draw.
Manufacturer
The manufacturer of the SN75C188N is Texas Instruments (TI). Texas Instruments is an American technology company that designs, manufactures, and tests semiconductors and other electronic components. The company was founded in 1930 and is headquartered in Dallas, Texas. TI is a leading global provider of analog and embedded processing semiconductor products, with a focus on innovation and customer satisfaction.
Applications
According to the product information, the application areas of SN75C188N include:
- Industrial settings
- RS-485/RS-422 compatibility
- Control systems
- PLCs (Programmable Logic Controllers)
- Power utility systems
- Long-distance data transfer
- High-speed data transmission
These applications highlight the device's reliability, noise-resistance, and ability to ensure secure communication in harsh environments.
Equivalent
The equivalent products of SN75C188N are:
- Texas Instruments SN75188
- Motorola MC1488
- National Semiconductor DS14C88
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