TC74VHCT573AF_07 datasheet(5/9 Pages) TOSHIBA

Il numero della parte	TC74VHCT573AF

Spiegazioni elettronici	Octal D-Type Latch with 3-State Output

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Produttore elettronici	TOSHIBA [Toshiba Semiconductor]

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TC74VHCT573AF/AFT/AFK

2007-10-01

5

AC Characteristics (input: tr = tf = 3 ns)

Test Condition

Ta = 25°C

Ta =

−40 to 85°C

Characteristics

Symbol

VCC (V)

CL (pF)

Min

Typ.

Max

Min

Max

Unit

15

―

7.7

12.3

1.0

13.5

Propagation delay

time

(LE-Q)

tpLH

tpHL

―

5.0 ± 0.5

50

―

8.5

13.3

1.0

14.5

ns

15

―

5.1

8.5

1.0

9.5

Propagation delay

time

(D-Q)

tpLH

tpHL

―

5.0 ± 0.5

50

―

5.9

9.5

1.0

10.5

ns

15

―

6.3

10.9

1.0

12.5

3-state output enable

time

tpZL

tpZH

RL = 1 kΩ

5.0 ± 0.5

50

―

7.1

11.9

1.0

13.5

ns

3-state output disable

time

tpLZ

tpHZ

RL = 1 kΩ

5.0 ± 0.5

50

―

8.8

11.2

1.0

12.0

ns

Output to output skew

tosLH

tosHL

(Note 1) 5.0 ± 0.5

50

―

1.0

―

1.0

ns

Input capacitance

CIN

―

4

10

―

10

pF

Output capacitance

COUT

―

9

―

pF

Power dissipation

capacitance

CPD

(Note 2)

―

25

―

pF

Note 1: Parameter guaranteed by design.

tosLH = |tpLHm − tpLHn|, tosHL = |tpHLm − tpHLn|

Note 2: 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 latch)

And the total CPD when n pcs. of latch operate can be gained by the following equation:

CPD (total) = 14 + 11·n

Noise Characteristics (input: tr = tf = 3 ns)

Test Condition

Ta = 25°C

Characteristics

Symbol

VCC (V)

Typ.

Max

Unit

Quiet output maximum dynamic VOL

VOLP

CL = 50 pF

5.0

1.1

1.5

V

Quiet output minimum dynamic VOL

VOLV

CL = 50 pF

5.0

−1.1

−1.5

V

Minimum high level dynamic input voltage

VIHD

CL = 50 pF

5.0

―

2.0

V

Maximum low level dynamic input voltage

VILD

CL = 50 pF

5.0

―

0.8

V

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