SN75C188DR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Signal Line Driver and Receiver
• Characteristics: High-speed, Low-power, Differential Signaling
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Amplifies and transmits digital signals over long distances
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Rate: Up to 20 Mbps
• Input/Output Logic Levels: TTL/CMOS Compatible
• Number of Channels: 1
• Input Resistance: 3 kΩ
• Output Resistance: 50 Ω
• Propagation Delay: 30 ns (typical)

Detailed Pin Configuration

The SN75C188DR has a total of 8 pins:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. A: Non-inverting data input
4. B: Inverting data input
5. Y: Non-inverting data output
6. Z: Inverting data output
7. RE: Receiver enable input
8. DE: Driver enable input

Functional Features

• High-speed signal transmission: The SN75C188DR is designed to transmit digital signals at high speeds up to 20 Mbps.
• Low-power consumption: It operates on a low supply voltage range and consumes minimal power, making it suitable for battery-powered devices.
• Differential signaling: It uses differential signaling to improve noise immunity and reduce electromagnetic interference.
• Receiver and driver enable inputs: The receiver and driver can be enabled or disabled independently, allowing flexible control of the signal transmission.

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Low power consumption - Differential signaling for improved noise immunity

Disadvantages: - Limited to a single channel - Requires external components for complete signal conditioning

Working Principles

The SN75C188DR operates based on the principles of differential signaling. It receives digital signals from the A and B inputs, amplifies them, and transmits the amplified signals through the Y and Z outputs. The receiver and driver enable inputs (RE and DE) control the operation of the receiver and driver sections, respectively.

Detailed Application Field Plans

The SN75C188DR is commonly used in various applications that require long-distance digital signal transmission, such as:

1. Industrial automation systems
2. Telecommunications equipment
3. Data communication networks
4. Automotive electronics
5. Medical devices

Detailed and Complete Alternative Models

1. MAX485: Similar functionality with multiple channels
2. SN75176: Lower power consumption, compatible with RS-485 standard
3. DS26LS31: Higher data rate, compatible with EIA/TIA-422 standard
4. LTC2874: Enhanced features for harsh environments, wide temperature range

These alternative models offer similar functionality to the SN75C188DR but may have different specifications or additional features depending on the specific application requirements.

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