6 Parameter Measurement Information

IN

OUT

CL

See Note B

VO

VI

VOL

VOH

VCC1

0 V

tr

50

Input Generator

(See Note A)

VI

VO

tf

tPLH

tPHL

50%

50%

50%

50%

90%

10%

A.

The input pulse is supplied by a generator having the following characteristics: PRR ≤ 50 kHz, 50% duty cycle, tr ≤ 3 ns, tf ≤ 3ns, ZO =

50 Ω. At the input, 50 Ω resistor is required to terminate Input Generator signal. The 50 Ω resistor is not needed in actual application.

B.

CL = 15 pF and includes instrumentation and fixture capacitance within ±20%.

Figure 6-1. Switching Characteristics Test Circuit and Voltage Waveforms

VI

VCC

IN

OUT

VO

CL

See Note A

IN = 0 V (Devices without suffix F)

IN = VCC (Devices with suffix F)

VO

VI

VOL

VOH

VCC

0 V

1.7 V

50%

tDO

default high

default low

See Note B

A.

CL = 15 pF and includes instrumentation and fixture capacitance within ±20%.

B.

Power Supply Ramp Rate = 10 mV/ns

Figure 6-2. Default Output Delay Time Test Circuit and Voltage Waveforms

IN

OUT

EN

VCC1

CL

See Note A

S1

GND2

GND1

+

±

VCM

+

±

VOH or VOL

C = 0.1 µF ±1%

C = 0.1 µF ±1%

VCC1

Pass-fail criteria:

The output must

remain stable.

A.

CL = 15 pF and includes instrumentation and fixture capacitance within ±20%.

Figure 6-3. Common-Mode Transient Immunity Test Circuit

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