PDF《EIA–232–E and CCITT V.28》

40 to + 85°C;

See Figures

2 and 3) Characteristic Symbol Min Typ Max Unit Drivers Propagation Delay Time Tx LowCtoCHigh RL =

3 k?, CL =

50 pF tPLH ―

500 1000 ns HighCtoCLow RL =

3 k?, CL =

50 pF tPHL ―

700 1000 Output Slew Rate Minimum Load RL =

7 k?, CL =

0 pF (VDD =

6 to

12 V, VSS = C

6 to C

12 V) SR ― ±

6 ±

30 V/?s Maximum Load RL =

3 k?, CL =

2500 pF (VDD =

12 V, VSS = C

12 V, VCC =

5 V)

4 ― ― Re........