GD65232, GD75232

MULTIPLE RS232 DRIVERS AND RECEIVERS

SLLS206J − MAY 1995 − REVISED NOVEMBER 2004

7

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

IOS(L)

−IOS(H)

VSS

VDD

VCC

VI

VO

VDD or GND

VSS or GND

RL = 3 kΩ

−IIL

IIH

VSS

VI

VI

VDD

VCC

Pulse

Generator

See Note A

CL

(see Note B)

RL

3 V

0 V

Input

tPHL

tPLH

tTHL

tTLH

VOH

VOL

TEST CIRCUIT

VOLTAGE WAVEFORMS

Input

Output

VSS

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.

VDD

VCC

1.5 V

1.5 V

90%

50%

10%

50%

10%

90%

Figure 3. Driver Test Circuit and Voltage Waveforms