SN752232

DUAL RS-232 PORT

SLLS507 – JUNE 2001

6

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

IOS(L)

–IOS(H)

VI

VO

VDD or GND

VSS or GND

RL = 3 kΩ

(for VOH and VOL tests only)

–IIL

IIH

VI

VI

CL

(see Note A)

RL

3 V

0 V

1.5 V

Input

tPHL

tPLH

90%

50%

10%

50%

10%

90%

tTHL

tTLH

VOH

VOL

TEST CIRCUIT

VOLTAGE WAVEFORMS

Input

Output

NOTES: A. CL includes probe and jig capacitance.

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

Output

Pulse

Generator

(See Note B)

1.5 V

Figure 3. Driver Test Circuit and Voltage Waveforms