MAX3238EIPWR

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 power supply
  • Compatible with TIA/EIA-232-F and ITU-T V.28 standards
• Package: 20-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: MAX3238EIPWR is a versatile RS-232 transceiver IC 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: 2
• Operating Temperature Range: -40°C to +85°C
• Input/Output Type: CMOS/TTL compatible
• ESD Protection: ±15kV (Human Body Model)

Pin Configuration

The MAX3238EIPWR has a 20-pin TSSOP package with the following pin configuration:

1. VCC
2. GND
3. C1-
4. C1+
5. V+
6. V-
7. R1IN
8. R1OUT
9. R2IN
10. R2OUT
11. T2OUT
12. T2IN
13. T1OUT
14. T1IN
15. SHDN
16. NC
17. NC
18. NC
19. NC
20. NC

Functional Features

• Low-power shutdown mode for power-saving applications
• Integrated charge pump for voltage level conversion
• Auto-power-down feature when no activity is detected on the RS-232 interface
• Enhanced ESD protection for robust communication in harsh environments

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - High-speed data transmission up to 1 Mbps - Low-power consumption for energy-efficient designs - Robust ESD protection ensures reliable operation

Disadvantages: - Limited number of channels (2) may not be sufficient for complex systems requiring multiple RS-232 connections - TSSOP package may require careful handling during assembly

Working Principles

The MAX3238EIPWR operates as a bidirectional transceiver, converting logic-level signals from microcontrollers or digital devices to RS-232 voltage levels. It utilizes an integrated charge pump to generate the higher voltage levels required by the RS-232 standard. The transceiver also incorporates auto-power-down functionality to conserve power when the RS-232 interface is idle.

Detailed Application Field Plans

The MAX3238EIPWR is commonly used in various applications that require RS-232 communication, including:

1. Industrial automation systems
2. Point-of-sale terminals
3. Networking equipment
4. Medical devices
5. Test and measurement instruments

Detailed and Complete Alternative Models

1. MAX3232EIPWR: Similar to MAX3238EIPWR but with fewer channels (1)
2. MAX3241EIPWR: RS-232 transceiver with enhanced ESD protection and adjustable logic thresholds
3. MAX3221EIPWR: Low-power RS-232 transceiver with shutdown mode and flow control support

These alternative models offer similar functionality to the MAX3238EIPWR but may have different specifications or additional features depending on specific application requirements.

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