ZHCSR57G October   1985  – April 2025 SN75179B

PRODUCTION DATA  

  1.   1
  2. 1特性
  3. 2说明
  4. 3Pin Configuration and Functions
  5. 4Specifications
    1. 4.1 Absolute Maximum Ratings
    2. 4.2 Recommended Operating Conditions
    3. 4.3 Thermal Information
    4. 4.4 Electrical Characteristics: Driver
    5. 4.5 Switching Characteristics
    6. 4.6 Symbol Equivalent
    7. 4.7 Electrical Characteristics: Receiver
    8. 4.8 Switching Characteristics
    9. 4.9 Typical Characteristics
  6. 5Parameter Measurement Information
  7. 6Detailed Description
    1. 6.1 Functional Block Diagram
    2. 6.2 Device Functional Modes
  8. 7Device and Documentation Support
    1. 7.1 Documentation Support
      1. 7.1.1 Related Documentation
    2. 7.2 接收文档更新通知
    3. 7.3 支持资源
    4. 7.4 Trademarks
    5. 7.5 静电放电警告
    6. 7.6 术语表
  9. 8Revision History
  10. 9Mechanical, Packaging, and Orderable Information

3 Pin Configuration and Functions

SN75179B D, PS, or P PackageTop ViewFigure 3-1 D, PS, or P Package
Top View
Table 3-1 Pin Functions
PINTYPE(1)DESCRIPTION
NAMENO.
1VCC

P

5V Voltage Supply

2R

O

RS485 Logic Output

3D

I

RS485 Logic Input

4GND

G

Ground

5Y

O

Non-Inverting RS485 Bus Output

6Z

O

Inverted RS485 Bus Output

7B

I

Inverted RS485 Bus Input

8A

I

Non-Inverting RS485 Bus Input

(1) I = Input, O = Output, I/O = Input or Output, G = Ground, P = Power.