JAJSPA0Q April   1999  – August 2024 MAX3243

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics –– Auto Power Down
    6. 5.6  Electrical Characteristics –– Driver
    7. 5.7  Electrical Characteristics –– Receiver
    8. 5.8  Switching Characteristics –– Auto Power Down
    9. 5.9  Switching Characteristics –– Driver
    10. 5.10 Switching Characteristics –– Receiver
    11. 5.11 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Auto-Power-Down
      2. 7.3.2 Charge Pump
      3. 7.3.3 RS232 Driver
      4. 7.3.4 RS232 Receiver
      5. 7.3.5 ROUT2B Receiver
      6. 7.3.6 Invalid Input Detection
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 ドキュメントの更新通知を受け取る方法
    2. 9.2 サポート・リソース
    3. 9.3 Trademarks
    4. 9.4 静電気放電に関する注意事項
    5. 9.5 用語集
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

4 Pin Configuration and Functions

Figure 4-1 DB, DW, or PW Package
(Top View)
Table 4-1 Pin Functions
PIN TYPE DESCRIPTION
NAME NO.
C2+ 1 — Positive lead of C2 capacitor
C2– 2 — Negative lead of C2 capacitor
V– 3 O Negative charge pump output for storage capacitor only
RIN1:RIN5 4, 5, 6, 7, 8 I RS232 line data input (from remote RS232 system)
DOUT1:DOUT3 9, 10, 11 O RS232 line data output (to remote RS232 system)
DIN3:DIN1 12, 13, 14 I Logic data input (from UART)
ROUT5:ROUT1 15, 16, 17, 18, 19 O Logic data output (to UART)
ROUT2B 20 O Always Active non-inverting output for RIN2 (normally used for ring indicator)
INVALID 21 O Active low output when all RIN are unpowered
FORCEOFF 22 I Low input forces DOUT1-5, ROUT1-5 high Z per Section 7.4
FORCEON 23 I High forces drivers on. Low is automatic mode per Section 7.4
C1– 24 — Negative lead on C1 capacitor
GND 25 — Ground
VCC 26 — Supply Voltage, Connect to 3V to 5.5V power supply
V+ 27 O Positive charge pump output for storage capacitor only
C1+ 28 — Positive lead of C1 capacitor