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MC74VHCT540A

Octal Bus Buffer Inverting

ON Semiconductor 

MC74VHCT540A

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0 ns)

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Symbol

Parameter

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPLH,

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPHL

Maximum Propagation

Delay, A to Y

(Figures 1 and 3)

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPZL,

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPZH

Output Enable TIme,

OEn to Y

(Figures 2 and 4)

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPLZ,

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPHZ

Output Disable Time,

OEn to Y

(Figures 2 and 4)

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tOSLH, OutputtoOutputSkew

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tOSHL

Test Conditions

VCC = 3.3 ± 0.3 V CL = 15 pF

CL = 50 pF

VCC = 5.0 ± 0.5 V CL = 15 pF

CL = 50 pF

VCC = 3.3 ± 0.3 V CL = 15 pF

RL = 1.0 kΩ

CL = 50 pF

VCC = 5.0 ± 0.5 V CL = 15 pF

RL = 1.0 kΩ

CL = 50 pF

VCC = 3.3 ± 0.3 V CL = 50 pF

RL = 1.0 kΩ

VCC = 5.0 ± 0.5 V CL = 50 pF

RL = 1.0 kΩ

VCC = 3.3 ± 0.3 V CL = 50 pF

(Note 3)

VCC = 5.0 ± 0.5 V CL = 50 pF

(Note 3)

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Cin MaximumInput

Capacitance

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Cout MaximumThree−State

Output Capacitance (Output

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ in High Impedance State)

TA = 25°C

Min Typ Max

4.8 7.0

7.3 10.5

3.7 5.0

5.2 7.0

6.8 10.5

9.3 14.0

4.7 7.2

6.2 9.2

11.2 15.4

6.0 8.8

1.5

1.0

4.0 10

6.0

TA = − 40 to

85°C

Min Max

1.0 8.5

1.0 12.0

1.0 6.0

1.0 8.0

1.0 12.5

1.0 16.0

1.0 8.5

1.0 10.5

1.0 17.5

1.0 10.0

1.5

1.0

10

TA ≤ 125°C

Min Max Unit

10.5 ns

14.0

8.0

10.0

15.0 ns

19.0

10.5

13.0

20.0 ns

11.5

2.0 ns

1.5 ns

10 pF

pF

Typical @ 25°C, VCC = 5.0V

CPD Power Dissipation Capacitance (Note 4)

17

pF

3. Parameter guaranteed by design. tOSLH = |tPLHm − tPLHn|, tOSHL = |tPHLm − tPHLn|.

4. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.

Average operating current can be obtained by the equation: ICC(OPR) = CPD  VCC  fin + ICC / 8 (per bit). CPD is used to determine the no−load

dynamic power consumption; PD = CPD  VCC2  fin + ICC  VCC.

NOISE CHARACTERISTICS (Input tr = tf = 3.0 ns, CL = 50 pF, VCC = 5.0 V)

Symbol

VOLP

VOLV

VIHD

VILD

Parameter

Quiet Output Maximum Dynamic VOL

Quiet Output Minimum Dynamic VOL

Minimum High Level Dynamic Input Voltage

Maximum Low Level Dynamic Input Voltage

TA = 25°C

Typ

Max

Unit

0.9

1.2

V

− 0.9

−1.2

V

3.5

V

1.5

V

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