SN75446, SN75447

DUAL PERIPHERAL DRIVERS

SLRS020A – DECEMBER 1978 – REVISED NOVEMBER 1995

3–4

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

SN75446

SN75447

RL = 100 Ω

CL = 15 pF

(see Note B)

VCC

2.7 V

2.7 V

1.5 V

1.5 V

0.7 V

0.7 V

50%

50%

tPHL

≤ 10 ns

≤ 5 ns

3 V

0 V

VOH

VOL

Output

VOLTAGE WAVEFORMS

0.3 V

2.7 V

tPLH

10%

10%

90%

90%

tTHL

tTLH

3 V

0 V

≤ 10 ns

≤ 5 ns

0.3 V

1.5 V

2.7 V

1.5 V

5

µs

SN75446 Input

Pulse

Generator

(see Note A)

Input

Circuit

Under

Test

Output

Open

A/S

2.4 V

30 V

S/A

0.4 V

TEST CIRCUIT

SN75447 Input

NOTES: A. The pulse generator has the following characteristics: PRR = 100 kHz, ZO = 50 Ω.

B. CL includes probe and jig capacitance.

Figure 1. Test Circuit and Voltage Waveforms, Switching Characteristics