MAX3223EAP

Product Overview

• Category: Integrated Circuit (IC)
• Use: RS-232 Transceiver
• Characteristics:
  • Low-power operation
  • Supports data rates up to 250 kbps
  • Operates from a single 3.0V to 5.5V supply
  • Compatible with TIA/EIA-232-F and ITU-T V.28 standards
• Package: 20-pin SSOP (Shrink Small Outline Package)
• Essence: The MAX3223EAP is a low-power RS-232 transceiver that provides a complete interface between a microcontroller or other logic-level device and any RS-232 communication port.
• Packaging/Quantity: Available in tape and reel packaging, with 250 units per reel.

Specifications

• Supply Voltage Range: 3.0V to 5.5V
• Data Rate: Up to 250 kbps
• Number of Channels: 3
• Operating Temperature Range: -40°C to +85°C
• Package Type: SSOP-20

Pin Configuration

The MAX3223EAP has a total of 20 pins. Here is the detailed pin configuration:

1. SHDN: Shutdown Input
2. VCC: Positive Power Supply
3. C1-: Capacitor Connection for Charge Pump 1
4. C1+: Capacitor Connection for Charge Pump 1
5. V+OUT: Positive Charge Pump Output
6. R1IN: Receiver 1 Input
7. R1OUT: Receiver 1 Output
8. GND: Ground
9. T1OUT: Transmitter 1 Output
10. T1IN: Transmitter 1 Input
11. R2IN: Receiver 2 Input
12. R2OUT: Receiver 2 Output
13. T2OUT: Transmitter 2 Output
14. T2IN: Transmitter 2 Input
15. C2-: Capacitor Connection for Charge Pump 2
16. C2+: Capacitor Connection for Charge Pump 2
17. V-OUT: Negative Charge Pump Output
18. R3IN: Receiver 3 Input
19. R3OUT: Receiver 3 Output
20. T3OUT: Transmitter 3 Output

Functional Features

• Low-power shutdown mode
• Integrated charge pumps for voltage level conversion
• ±15kV ESD protection on RS-232 I/O pins
• Suitable for battery-powered applications
• Supports multiple data rates
• Wide supply voltage range

Advantages and Disadvantages

Advantages: - Low-power operation extends battery life in portable devices. - Integrated charge pumps eliminate the need for external voltage level shifters. - ESD protection ensures robust communication in harsh environments.

Disadvantages: - Limited to RS-232 communication standard, not compatible with other standards like RS-485 or USB.

Working Principles

The MAX3223EAP operates by converting logic-level signals from a microcontroller or other device into RS-232 voltage levels. It uses integrated charge pumps to generate the required positive and negative voltages for RS-232 communication. The transceiver also incorporates ESD protection to safeguard against electrostatic discharge events.

Detailed Application Field Plans

The MAX3223EAP is commonly used in various applications, including but not limited to: - Industrial automation systems - Point-of-sale terminals - Medical equipment - Networking devices - Portable electronics

Alternative Models

Here are some alternative models that can be considered as alternatives to the MAX3223EAP: - MAX3232ECP+ - MAX3243EIPWR - MAX3237EIDBR - MAX3222EAP

These models offer similar functionality and characteristics, providing flexibility in choosing the most suitable RS-232 transceiver for specific applications.

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