ZHCSCM6G May 2014 – October 2019 SN65HVD70 , SN65HVD71 , SN65HVD73 , SN65HVD74 , SN65HVD76 , SN65HVD77
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
-
7 Specifications
- 7.1 Absolute Maximum Ratings
- 7.2 ESD Ratings
- 7.3 Recommended Operating Conditions
- 7.4 Thermal Information — D Packages
- 7.5 Thermal Information — DGS and DGK Packages
- 7.6 Power Dissipation
- 7.7 Electrical Characteristics
- 7.8 Switching Characteristics — 400 kbps
- 7.9 Switching Characteristics — 20 Mbps
- 7.10 Switching Characteristics — 50 Mbps
- 7.11 Typical Characteristics
- 8 Parameter Measurement Information
- 9 Detailed Description
- 10Application and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13器件和文檔支持
- 14機械、封裝和可訂購信息
10.2 Typical Application
A full-duplex RS-485 network consists of multiple transceivers connecting in parallel to two bus cables. On one signal pair, a master driver transmits data to multiple slave receivers. The master driver and slave receivers may remain fully enabled at all times. On the other signal pair, multiple slave drivers transmit data to the master receiver. To avoid bus contention, the slave drivers must be intermittently enabled and disabled such that only one driver is enabled at any time, as in half-duplex communication. The master receiver may remain fully enabled at all times.
Because the driver may not be disabled, only one driver should be connected to the bus when using the SN65HVD71, SN65HVD74, or SN65HVD77 device.
Master Enable Control
Slave Enable Control
