MC74LVQ244

MOTOROLA

ECLinPS and ECLinPS Lite

DL140 — Rev 3

4

DYNAMIC SWITCHING CHARACTERISTICS (VCC = 3.3V)

TA = +25°C

Symbol

Characteristic

Condition

Min

Typ

Max

Unit

VOLP

Dynamic LOW Peak Voltage (Note 1)

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

0.6

1.0

V

VOLV

Dynamic LOW Valley Voltage (Note 1)

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

–0.5

–1.0

V

VIHD

High Level Dynamic Input Voltage

(Note 2)

Input–Under–Test Switching 0V to Threshold,

f=1MHz

1.5

2.0

V

VILD

Low Level Dynamic Input Voltage

(Note 2)

Input–Under–Test Switching 3.3V to Threshold,

f=1MHz

1.5

0.8

V

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

LOW state.

2. Number of data inputs is defined as “n” switching, “n–1” inputs switching 0V to 3.3V.

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

Limits

TA = +25°C

TA = –40°C to +85°C

VCC = 3.0V to 3.6V

VCC = 2.7V

VCC = 3.0V to 3.6V

VCC = 2.7V

Symbol

Parameter

Min

Typ

Max

Min

Typ

Max

Min

Max

Max

Unit

tPLH

tPHL

Propagation Delay

Input to Output

2.0

2.0

7.0

7.0

9.0

9.0

2.0

2.0

7.5

7.5

11.0

11.0

2.0

2.0

9.5

9.5

11.5

11.5

ns

tPZH

tPZL

Output Enable Time

to High and Low Level

2.5

2.5

7.0

7.0

10.0

10.0

2.5

2.5

8.0

8.0

11.5

11.5

2.5

2.5

10.5

10.5

12.0

12.0

ns

tPHZ

tPLZ

Output Disable Time

From High and Low Level

1.0

1.0

6.5

6.5

9.5

9.5

1.0

1.0

7.5

7.5

11.0

11.0

1.0

1.0

10.0

10.0

11.5

11.5

ns

tOSHL

tOSLH

Output–to–Output Skew

(Note 1)

1.0

1.0

1.5

1.5

1.0

1.0

1.5

1.5

1.5

1.5

ns

1. 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.

CAPACITIVE CHARACTERISTICS

Symbol

Parameter

Condition

Typical

Unit

CPD

Power Dissipation Capacitance

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

22

pF

CIN

Input Capacitance

VCC = Open, VI = 0V or VCC

4.5

pF