SLLS410N January   2000  – June 2017 MAX3232

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics — Device
    6. 6.6 Electrical Characteristics — Driver
    7. 6.7 Electrical Characteristics — Receiver
    8. 6.8 Switching Characteristics
    9. 6.9 Typical Characteristics
  7. Parameter Measurement Information
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power
      2. 8.3.2 RS232 Driver
      3. 8.3.3 RS232 Receiver
    4. 8.4 Device Functional Modes
      1. 8.4.1 VCC powered by 3 V to 5.5 V
      2. 8.4.2 VCC unpowered, VCC = 0 V
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Standard Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • PW|16
  • DB|16
  • DW|16
  • D|16
散热焊盘机械数据 (封装 | 引脚)
订购信息

Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.

Application Information

For proper operation, add capacitors as shown in Figure 6.

Standard Application

ROUT and DIN connect to UART or general purpose logic lines. RIN and DOUT lines connect to a RS232 connector or cable.

MAX3232 app_lls410.gif
† C3 can be connected to VCC or GND.
Resistor values shown are nominal.
Nonpolarized ceramic capacitors are acceptable. If polarized tantalum or electrolytic capacitors are used, they should be connected as shown.
Figure 6. Typical Operating Circuit and Capacitor Values

Design Requirements

  • Recommended VCC is 3.3 V or 5 V. 3 V to 5.5 V is also possible
  • Maximum recommended bit rate is 250 kbit/s.

Table 3. VCC vs Capacitor Values

VCC C1 C2, C3, C4
3.3 V to 0.3 V 0.1 µF 0.1 µF
5 V to 0.5 V 0.047 µF 0.33 µF
3 V to 5.5 V 0.1 µF 0.47 µF

Detailed Design Procedure

  • All DIN, FORCEOFF and FORCEON inputs must be connected to valid low or high logic levels.
  • Select capacitor values based on VCC level for best performance.

Application Curves

MAX3232 max3232_timing.png
VCC = 3.3 V
Figure 7. 250 kbit/s Driver to Receiver Loopback Timing Waveform