HD26LS31P Renesas, HD26LS31P Datasheet - Page 12

• Manufacturer Part Number: HD26LS31P
• Description: Quadruple Differential Line Receivers With 3 State Outputs
• Manufacturer: Renesas

HD26LS32
2. Unidirectional Transmission (1 : n Configuration)
With this connection method, n receivers are connected for one driver. In the RS-422A standard, ten receivers can be
connected simultaneously for one driver.
Conversely, it is also possible to connect one receiver for n drivers.
3. Bidirectional Transmission
When bidirectional data exchange is performed using a combination of the HD26LS31 and HD26LS32, since either
high or low output control is possible, using complementary enable inputs for the driver and receiver makes it easy to
configure the kind of combination illustrated in figure 11 .
Extending this combination makes it possible to exchange n-bit data simultaneously, and handle a party line system.
Rev.2.00, Jul.16.2004, page 12 of 14
Data I/O
input
Data
Enable
Driver
Receiver
Figure 10 1 : n Unidirectional Transmission
Driver
Figure 11 Bidirectional Transmission
R
T
R
T
output
Data
Receiver
output
Data
R
T
Driver
R
T
Receiver
Enable
Data I/O
Enable
Data
output
Data
output