SN75140

DUAL LINE RECEIVER

SLLS080C – JANUARY 1977 – REVISED APRIL 1998

5

POST OFFICE BOX 655303

APPLICATION INFORMATION

Twisted-Pair Line

Strobe

Data Input

RT

1/2 SN75372

1/2 SN75140

Vref

5 V

OUT

Strobe

Figure 3. Line Receiver

N = 75†

N = 74

N = 2

N = 1

COMSTRB

SN75140

SN75140

† Although most series SN54/SN74 circuits have a >2.4-V output at 400

µA, they typically are capable of maintaining a >2.4-V output level under

a load of 7.5 mA.

Any Series

SN54/SN74

Logic

COMSTRB

1.5 V

1.5 V

Figure 4.

High Fanout From Standard TTL Gate