MC74LCX244 View Datasheet(PDF) - ON Semiconductor

Part Name

Description

Manufacturer

MC74LCX244

Low-Voltage CMOS Octal Buffer

ON Semiconductor 

MC74LCX244

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

Limits

Symbol

Parameter

Waveform

VCC = 3.0 V to 3.6 V

CL = 50 pF

Min

Max

TA = –40°C to +85°C

VCC = 2.7 V

CL = 50 pF

Min

Max

VCC = 2.5 V +0.2

CL = 30 pF

Min

Max

Unit

tPLH

Propagation Delay

1

tPHL

Input to Output

tPZH

Output Enable Time to

2

tPZL

High and Low Level

tPHZ

Output Disable Time From

2

tPLZ

High and Low Level

tOSHL

tOSLH

Output–to–Output Skew

(Note 3.)

1.5

6.5

1.5

7.5

1.5

7.8

ns

1.5

6.5

1.5

7.5

1.5

7.8

1.5

8.0

1.5

9.0

1.5

10

ns

1.5

8.0

1.5

9.0

1.5

10

1.5

7.0

1.5

8.0

1.5

8.4

ns

1.5

7.0

1.5

8.0

1.5

8.4

1.0

ns

1.0

3. 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

Symbol

Characteristic

Condition

TA = +25°C

Min Typ Max Unit

VOLP

Dynamic LOW Peak Voltage (Note 4.) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V

0.8

V

VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V

0.6

VOLV

Dynamic LOW Valley Voltage (Note 4.) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V

–0.8

V

VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V

–0.6

4. 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 = 3.3 V, VI = 0 V or VCC

7

pF

COUT

Output Capacitance

VCC = 3.3 V, VI = 0 V or VCC

8

pF

CPD

Power Dissipation Capacitance

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

25

pF

http://onsemi.com

5

Share Link: