SN75C3221EDBR

Product Overview

Category

SN75C3221EDBR belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a line driver or receiver for RS-232 communication.

Characteristics

• Supports data rates up to 1 Mbps.
• Operates with a single power supply ranging from 3 V to 5.5 V.
• Provides ±15 kV ESD protection on the RS-232 pins.
• Offers low power consumption in standby mode.
• Compatible with various microcontrollers and UARTs.

Package

SN75C3221EDBR is available in a small package known as SSOP (Shrink Small Outline Package). This package ensures easy integration into circuit boards and provides good thermal performance.

Essence

The essence of SN75C3221EDBR lies in its ability to facilitate reliable and efficient RS-232 communication by converting voltage levels and providing ESD protection.

Packaging/Quantity

SN75C3221EDBR is typically sold in reels, with each reel containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer and distributor.

Specifications

• Supply Voltage: 3 V to 5.5 V
• Data Rate: Up to 1 Mbps
• ESD Protection: ±15 kV
• Operating Temperature Range: -40°C to +85°C
• Package Type: SSOP

Detailed Pin Configuration

The pin configuration of SN75C3221EDBR is as follows:

1. VCC
2. GND
3. T1OUT
4. R1IN
5. R1OUT
6. T1IN
7. R2OUT
8. T2IN
9. T2OUT
10. R2IN

Functional Features

• Voltage level conversion between RS-232 and microcontroller/UART logic levels.
• ESD protection on RS-232 pins to safeguard against electrostatic discharge.
• Low power consumption in standby mode, enhancing energy efficiency.
• Wide operating voltage range allows compatibility with various systems.

Advantages and Disadvantages

Advantages

• Supports high-speed data transmission up to 1 Mbps.
• Provides robust ESD protection for reliable communication.
• Compact SSOP package enables easy integration into circuit boards.
• Compatible with a wide range of microcontrollers and UARTs.

Disadvantages

• Limited to RS-232 communication and not suitable for other protocols.
• May require additional components for complete system implementation.

Working Principles

SN75C3221EDBR operates by receiving RS-232 signals and converting them to logic-level signals compatible with microcontrollers or UARTs. It also performs the reverse conversion, allowing microcontrollers or UARTs to communicate with RS-232 devices. The IC incorporates ESD protection to prevent damage from electrostatic discharge.

Detailed Application Field Plans

SN75C3221EDBR finds applications in various fields where RS-232 communication is required. Some common application areas include: - Industrial automation - Telecommunications - Medical equipment - Point-of-sale systems - Networking devices

Detailed and Complete Alternative Models

There are several alternative models available that offer similar functionality to SN75C3221EDBR. Some notable alternatives include: - MAX3232EIPWR - SP3232EEN-L/TR - ADM3202ARNZ

These alternative models can be considered based on specific requirements and availability.

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