MC74HCT240A

High–Speed CMOS Logic Data

DL129 — Rev 6

3

MOTOROLA

Sb l

P

T

C

di i

V

Guaranteed Limit

Ui

Symbol

Parameter

Test Conditions

VCC

V

– 55 to

25

_C

v 85_C

v 125_C

Unit

ICC

Maximum Quiescent Supply

Current (per Package)

Vin = VCC or GND

Iout = 0 µA

5.5

4

40

160

µA

∆ICC

Additional Quiescent Supply

Current

Vin = 2.4 V, Any One Input

Vin = VCC or GND, Other Inputs

55

≥ –55_C

25

_C to 125_C

A

Current

Vin = VCC or GND, Other Inputs

lout = 0 µA

5.5

2.9

2.4

mA

NOTES:

1. Information on typical parametric values along with frequency or heavy load considerations can be found in Chapter 2 of the Motorola High–

Speed CMOS Data Book (DL129/D).

2. Total Supply Current = ICC + Σ∆ICC.

Sb l

P

Guaranteed Limit

Ui

Symbol

Parameter

– 55 to

25

_C

v 85_C

v 125_C

Unit

tPLH,

tPHL

Maximum Propagation Delay, A to YA or B to YB

(Figures 1 and 3)

20

25

30

ns

tPLZ,

tPHZ

Maximum Propagation Delay, Output Enable to YA or YB

(Figures 2 and 4)

28

35

42

ns

tPZL,

tPZH

Maximum Propagation Delay, Output Enable to YA or YB

(Figures 2 and 4)

25

31

38

ns

tTLH,

tTHL

Maximum Output Transition Time, Any Output

(Figures 1 and 3)

12

15

18

ns

Cin

Maximum Input Capacitance

10

10

10

pF

Cout

Maximum Three–State Output Capacitance (Output in High–Impedance

State)

15

15

15

pF

NOTE: For propagation delays with loads other than 50 pF, and information on typical parametric values, see Chapter 2 of the Motorola High–

Speed CMOS Data Book (DL129/D).

C

P

Di

i

i

C

i

(P

E

bl d O

)*

Typical @ 25

°C, VCC = 5.0 V

F

CPD

Power Dissipation Capacitance (Per Enabled Output)*

55

pF

* Used to determine the no–load dynamic power consumption: PD = CPD VCC2f + ICC VCC. For load considerations, see Chapter 2 of the

Motorola High–Speed CMOS Data Book (DL129/D).