5.5 HCT Input Loading Table

Input

Unit Loads(1)

OE1

0.6

All others

0.55

(1)

Unit Load is ΔICC limit specified in Section 5.4, e.g., 360 µA max at 25℃.

5.6 Switching Characteristics

tr, tf = 6 ns

PARAMETER

TEST

CONDITIONS

VCC (V)

25

℃

40

℃ to 85℃

55

℃ to 125℃

UNIT

TYP

MAX

MAX

MAX

HC TYPES

tPLH, tPHL

Propagation delay, data to

outputs

HC/HCT 365

CL = 50 pF

2

105

130

160

ns

4.5

21

26

32

ns

6

18

22

27

ns

CL = 15 pF

5

8

ns

tPLH, tPHL

Propagation delay, data to

outputs

HC 366

CL = 50 pF

2

110

140

165

ns

4.5

22

28

33

ns

6

19

24

28

ns

CL = 15 pF

5

9

ns

tPLH, tPHL

Propagation delay time, output

enable and disable to outputs

CL = 50 pF

2

150

190

225

ns

4.5

30

38

45

ns

6

26

33

38

ns

CL = 15 pF

5

12

ns

tTLH, tTHL

Output transition time

CL = 50 pF

2

60

75

90

ns

4.5

12

15

18

ns

6

10

13

15

ns

CI

Input capacitance

10

10

10

pF

CO

Three-state ouput capacitance

20

20

20

pF

CPD

Power dissipation capacitance(1)

(2)

5

40

pF

HCT TYPES

tPLH, tPHL

Propagation delay, data to

outputs

HC/HCT 365

CL = 50 pF

4.5

25

31

38

ns

ns

CL = 15 pF

5

9

ns

ns

tPLH, tPHL

Propagation delay, data to

outputs

HC 366

CL = 50 pF

4.5

27

34

41

ns

CL = 15 pF

5

11

ns

tPLH, tPHL

Propagation delay time, output

enable and disable to ouputs

CL = 50 pF

4.5

35

44

53

ns

CL = 15 pF

5

14

ns

tTLH, tTHL

Output transition time

CL = 50 pF

4.5

12

15

18

ns

CIN

Input capacitance

10

10

10

pF

CO

Three-stage capacitance

20

20

20

pF

CPD

Power dissipation capacitance(1)

(2)

5

42

pF

(1)

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

(2)

PD = VCC 2 fi (CPD + CI) where fi = input frequency, CL = output load capacitance, VCC = supply voltage.

CD54HC365, CD74HC365, CD54HCT365

CD74HCT365, CD54HC366, CD74HC366

SCHS180D – NOVEMBER 1997 – REVISED JULY 2022

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