TC74HCT245AP datasheet(4/7 Pages) TOSHIBA

Il numero della parte	TC74HCT245AP

Spiegazioni elettronici	Octal Bus Transceiver (3-state)

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Produttore elettronici	TOSHIBA [Toshiba Semiconductor]

Homepage	http://www.semicon.toshiba.co.jp/eng

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TC74HCT245AP/AF

2007-10-01

4

AC Characteristics (input: tr = tf = 6 ns)

Test Condition

Ta

= 25°C

Ta

= −40 to 85°C

Characteristics

Symbol

CL (pF) VCC (V)

Min

Typ.

Max

Min

Max

Unit

Output transition time

tTLH

tTHL

⎯

50

4.5

5.5

⎯

7

6

12

11

⎯

15

14

ns

50

4.5

5.5

⎯

13

11

22

20

⎯

28

25

Propagation delay

time

tpLH

tpHL

⎯

150

4.5

5.5

⎯

18

16

30

27

⎯

38

34

ns

50

4.5

5.5

⎯

19

16

30

27

⎯

38

34

3-state output enable

time

tpZL

tpZH

RL = 1 kΩ

150

4.5

5.5

⎯

24

22

38

34

⎯

48

43

ns

3-state output disable

time

tpLZ

tpHZ

RL = 1 kΩ

50

4.5

5.5

⎯

17

16

30

27

⎯

38

34

ns

Input capacitance

CIN

DIR, G

⎯

5

10

⎯

10

pF

Output capacitance

CI/O

An, Bn

⎯

13

⎯

pF

Power dissipation

capacitance

CPD

(Note)

⎯

41

⎯

pF

Note:

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)

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