SN75196

MULTIPLE RS-232 DRIVERS AND RECEIVERS

SLLS188B – MAY 1995 – REVISED APRIL 1998

8

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

VI

VDD

VCC

VSS

–IOS

VIT, VI

VDD

VCC

VSS

IOL

VOH

–IOH

VOL

5 V

–5 V

50%

50%

Input

tPHL

tPLH

90%

50%

10%

50%

10%

90%

tTHL

tTLH

VOH

VOL

VOLTAGE WAVEFORMS

Output

NOTES: A.

The pulse generator has the following characteristics: tw = 25 µs, PRR = 20 kHz, ZO = 50 Ω, tr = tf < 50 ns.

B.

CL includes probe and jig capacitance.

Pulse

Generator

See Note A

CL

(see Note B)

RL

TEST CIRCUIT

Input

VSS

VCC

VDD

VO

Figure 6. Receiver Propagation and Transition Times