MC74LCX2952

LCX DATA

BR1339 — REV 3

5

MOTOROLA

AC CHARACTERISTICS (Note 3.; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω)

Limits

TA = –40°C to +85°C

VCC = 3.0V to 3.6V

VCC = 2.7V

Symbol

Parameter

Waveform

Min

Max

Min

Max

Unit

fmax

Clock Pulse Frequency

3

150

MHz

tPLH

tPHL

Propagation Delay

Clock to Output

1

1.5

1.5

8.0

8.0

1.5

1.5

9.0

9.0

ns

tPZH

tPZL

Output Enable Time to

High and Low Level

2

1.5

1.5

8.0

8.0

1.5

1.5

9.0

9.0

ns

tPHZ

tPLZ

Output Disable Time From

High and Low Level

2

1.5

1.5

6.0

6.0

1.5

1.5

7.0

7.0

ns

ts

Setup Time, HIGH to LOW Data to Clock

3

2.5

2.5

ns

th

Hold Time, HIGH to LOW Data to Clock

3

1.5

1.5

ns

ts

Setup Time, HIGH to LOW CExx to Clock

3

2.5

2.5

ns

th

Hold Time, HIGH to LOW CExx to Clock

3

1.5

1.5

ns

tw

Clock Pulse Width, HIGH or LOW

3

3.3

3.3

ns

tOSHL

tOSLH

Output–to–Output Skew

(Note 4.)

1.0

1.0

ns

3. These AC parameters are preliminary and may be modified prior to release. The maximum AC limits are design targets. Actual performance

will be specified upon completion of characterization.

4. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.

The specification applies to any outputs switching in the same direction, either HIGH–to–LOW (tOSHL) or LOW–to–HIGH (tOSLH); parameter

guaranteed by design.

DYNAMIC SWITCHING CHARACTERISTICS

TA = +25°C

Symbol

Characteristic

Condition

Min

Typ

Max

Unit

VOLP

Dynamic LOW Peak Voltage (Note 5.)

VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V

0.8

V

VOLV

Dynamic LOW Valley Voltage (Note 5.)

VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V

0.8

V

5. Number of outputs defined as “n”. Measured with “n–1” outputs switching from HIGH–to–LOW or LOW–to–HIGH. The remaining output is

measured in the LOW state.

CAPACITIVE CHARACTERISTICS

Symbol

Parameter

Condition

Typical

Unit

CIN

Input Capacitance

VCC = 3.3V, VI = 0V or VCC

7

pF

CI/O

Input/Output Capacitance

VCC = 3.3V, VI = 0V or VCC

8

pF

CPD

Power Dissipation Capacitance

10MHz, VCC = 3.3V, VI = 0V or VCC

25

pF