WS57C191C/291C

2-10

SYMBOL

PARAMETER

CONDITIONS

MAX

UNITS

Input Capacitance

4

6

pF

Output Capacitance

8

12

pF

18

25

pF

30 pF

(INCLUDING SCOPE

AND JIG

CAPACITANCE)

98

Ω

2.01 V

D.U.T.

A.C. TESTING INPUT/OUTPUT WAVEFORM

3.0

0.0

1.5

1.5

TEST

POINTS

NOTE: 6. Provide adequate decoupling capacitance as close as possible to this device to achieve the published A.C. and D.C. parameters.

Inadequate decoupling may result in access time degradation or other transient performance failures.

NOTES: 4. This parameter is only sampled and is not 100% tested.

5.Typical values are for TA = 25°C and nominal supply voltages.

A.C. testing inputs are driven at 3.0 V for a logic "1" and 0.0 V for a

logic "0." Timing measurements are made at 1.5 V for input and

output transitions in both directions.