SN65C3221PW

Product Overview

Category

SN65C3221PW belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for serial communication applications, specifically for RS-232 and RS-485 interfaces.

Characteristics

• Supports both RS-232 and RS-485 standards.
• Provides a high level of integration with multiple functions in a single chip.
• Offers low power consumption and high data rates.
• Operates over a wide temperature range.
• Designed to provide reliable and robust communication.

Package

SN65C3221PW is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of SN65C3221PW lies in its ability to facilitate serial communication by converting signals between RS-232 and RS-485 standards.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply voltage: 3.3V
• Data rate: Up to 1 Mbps
• Number of channels: 2
• Operating temperature range: -40°C to +85°C
• Package type: SOIC-16

Detailed Pin Configuration

1. VCC
2. GND
3. DE
4. RE
5. A
6. B
7. Y
8. Z
9. C
10. D
11. NC
12. NC
13. NC
14. NC
15. NC
16. NC

Functional Features

• Dual-channel transceiver for RS-232 and RS-485 interfaces.
• Automatic direction control for RS-485 mode.
• Built-in protection features against electrostatic discharge (ESD).
• Low power consumption in standby mode.
• Wide operating voltage range.

Advantages and Disadvantages

Advantages

• High level of integration reduces component count and board space.
• Supports both RS-232 and RS-485 standards, providing flexibility in communication interfaces.
• Robust protection against ESD ensures reliable operation.
• Low power consumption extends battery life in portable applications.

Disadvantages

• Limited number of channels (2) may not be suitable for applications requiring more channels.
• Requires external components for proper operation.
• May require additional circuitry for voltage level translation in certain applications.

Working Principles

SN65C3221PW operates by receiving serial data from either the RS-232 or RS-485 interface and converting it to a format compatible with the other interface. It incorporates automatic direction control for RS-485 mode, enabling bidirectional communication. The built-in protection features guard against ESD events, ensuring the integrity of the communication signals.

Detailed Application Field Plans

SN65C3221PW finds application in various fields, including: 1. Industrial automation: Used for communication between PLCs, sensors, and other industrial devices. 2. Telecommunications: Enables communication between modems, routers, and other networking equipment. 3. Automotive: Facilitates communication between different vehicle systems, such as infotainment and diagnostics. 4. Medical devices: Allows for data exchange between medical instruments and monitoring systems. 5. Consumer electronics: Used in devices like printers, scanners, and digital cameras for data transfer.

Detailed and Complete Alternative Models

1. MAX3232EIPWR
2. ADM3251EARWZ
3. SP3232EEN-L/TR

These alternative models offer similar functionality and can be considered as replacements for SN65C3221PW in various applications.

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