SN75ALS170, SN75ALS170A

TRIPLE DIFFERENTIAL BUS TRANSCEIVER

SLLS055D – AUGUST 1987 – REVISED SEPTEMBER 1995

10

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

TEST CIRCUIT

VOLTAGE WAVEFORMS

VOL

VOH

3 V

0 V

tPHL

tPLH

Output

Input

1.5 V

1.3 V

51

Ω

CL = 15 pF

(see Note B)

Output

0 V

1.5 V

Generator

(see Note A)

1.5 V

1.3 V

NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR

≤ 1 MHz, 50% duty cycle, tr ≤ 6 ns, tf ≤ 6 ns,

ZO = 50 Ω.

B. CL includes probe and jig capacitance.

Figure 6. Receiver Test Circuit and Voltage Waveforms

TYPICAL CHARACTERISTICS

2.5

1.5

1

0

0

– 20

– 40

– 60

3.5

4

DRIVER

HIGH-LEVEL OUTPUT VOLTAGE

vs

HIGH-LEVEL OUTPUT CURRENT

5

– 80

– 100

– 120

IOH – High-Level Output Current – mA

4.5

3

2

0.5

VCC = 5 V

TA = 25°C

Figure 7

Figure 8

2.5

1.5

1

0

020

40

60

3.5

4

DRIVER

LOW-LEVEL OUTPUT VOLTAGE

vs

LOW-LEVEL OUTPUT CURRENT

5

80

100

120

IOL – Low-Level Output Current – mA

4.5

3

2

0.5

VCC = 5 V

TA = 25°C