4

Quiescent Device

Current

ICC

VCC or

GND

0

6

-

-

2

-

20

-

40

µA

DC Electrical Specifications (Continued)

PARAMETER

SYMBOL

TEST

CONDITIONS

VCC

(V)

25oC

–40oC TO 85oC

–55oC TO

125oC

UNITS

VI (V)

IO (mA)

MIN

TYP

MAX

MIN

MAX

MIN

MAX

Switching Specifications Input tr, tf = 6ns

PARAMETER

SYMBOL

TEST

CONDITIONS

VCC (V)

25oC

–40oC TO

85oC

–55oC TO

125oC

UNITS

MIN

TYP

MAX

MIN

MAX

MIN

MAX

HC TYPES

Propagation Delay,

nA to nY HC4049

nA to nY HC4050

tPLH, tPHL

CL = 50pF

2

-

-

85

-

105

-

130

ns

4.5

-

-

17

-

21

-

26

ns

6

-

-

14

-

18

-

22

ns

CL = 15pF

5

-

6

-

-

-

-

-

ns

Transition Times (Figure 1)

tTLH, tTHL

CL = 50pF

2

-

-

75

-

95

-

110

ns

4.5

-

-

15

-

19

-

22

ns

6

-

-

13

-

16

-

19

ns

Input Capacitance

CI

-

-

-

-

10

-

10

-

10

pF

Power Dissipation Capacitance

(Notes 2, 3)

CPD

-5

-

35

-

-

-

-

-

pF

NOTES:

2. CPD is used to determine the dynamic power consumption, per gate.

3. PD = VCC

2 f

i (CPD + CL) where fi = Input Frequency, CL = Output Load Capacitance, VCC = Supply Voltage.

Test Circuit and Waveform

FIGURE 1. HC AND HCU TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC

tPHL

tPLH

tTHL

tTLH

90%

50%

10%

50%

10%

INVERTING

OUTPUT

INPUT

GND

VCC

tr = 6ns

tf = 6ns

90%

CD54HC4049, CD74HC4049, CD54HC4050, CD74HC4050