MAX3221CPWRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: RS-232 Transceiver
• Characteristics:
  • Low-power, high-speed transceiver
  • Supports data rates up to 1 Mbps
  • Operates from a single 3.0V to 5.5V supply
  • Compatible with TIA/EIA-232-F and ITU V.28 standards
• Package: 20-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: MAX3221CPWRG4 is a versatile RS-232 transceiver that enables bidirectional communication between microcontrollers or other digital devices and RS-232 serial interfaces.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage Range: 3.0V to 5.5V
• Data Rate: Up to 1 Mbps
• Number of Channels: 1
• Operating Temperature Range: -40°C to +85°C
• Input/Output Type: CMOS/TTL
• ESD Protection: ±15kV (Human Body Model)

Pin Configuration

The MAX3221CPWRG4 has a total of 20 pins. The pin configuration is as follows:

1. SHDN - Shutdown Input
2. VCC - Positive Power Supply
3. C1+ - External Capacitor Connection
4. C1- - External Capacitor Connection
5. V+ - Positive Charge Pump Output
6. V- - Negative Charge Pump Output
7. R1IN - Receiver 1 Input
8. R1OUT - Receiver 1 Output
9. T1IN - Transmitter 1 Input
10. T1OUT - Transmitter 1 Output
11. GND - Ground
12. R2OUT - Receiver 2 Output
13. T2IN - Transmitter 2 Input
14. T2OUT - Transmitter 2 Output
15. R2IN - Receiver 2 Input
16. C2- - External Capacitor Connection
17. C2+ - External Capacitor Connection
18. VCC - Positive Power Supply
19. SHDN - Shutdown Input
20. GND - Ground

Functional Features

• Low-power operation: The MAX3221CPWRG4 is designed to consume minimal power, making it suitable for battery-powered applications.
• High-speed communication: With support for data rates up to 1 Mbps, the transceiver enables fast and efficient data transfer.
• Wide supply voltage range: The device can operate from a single 3.0V to 5.5V supply, providing flexibility in various system configurations.
• ESD protection: The MAX3221CPWRG4 offers ±15kV ESD protection, ensuring robustness against electrostatic discharge.

Advantages and Disadvantages

Advantages: - Low power consumption - High-speed data transfer - Wide supply voltage range - ESD protection

Disadvantages: - Limited number of channels (only one)

Working Principles

The MAX3221CPWRG4 operates as an RS-232 transceiver by converting CMOS/TTL logic levels to RS-232 voltage levels and vice versa. It utilizes an internal charge pump to generate the required RS-232 voltage levels. The transceiver incorporates a shutdown feature that allows the device to enter a low-power state when not in use.

Detailed Application Field Plans

The MAX3221CPWRG4 is widely used in various applications, including but not limited to: - Industrial automation - Telecommunications - Networking equipment - Point-of-sale systems - Medical devices - Consumer electronics

Detailed and Complete Alternative Models

• MAX3222CPWRG4: Similar to MAX3221CPWRG4, but with two channels instead of one.
• MAX3232CPWRG4: RS-232 transceiver with enhanced ESD protection and higher data rates.
• MAX3243CPWRG4: RS-232 transceiver with integrated capacitors for space-constrained applications.

These alternative models offer similar functionality to the MAX3221CPWRG4 but may have additional features or different pin configurations to suit specific application requirements.

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