TC74VHC257FK_12 datasheet(5/9 Pages) TOSHIBA

部品番号	TC74VHC257FK

部品情報	Quad 2-Channel Multiplexer (3-state)

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メーカー	TOSHIBA [Toshiba Semiconductor]

ホームページ	http://www.semicon.toshiba.co.jp/eng

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TC74VHC257F/FT/FK

2012-02-29

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

―

5.8

9.3

1.0

11.0

3.3 ± 0.3

50

―

8.3

12.8

1.0

14.5

15

―

3.6

5.9

1.0

7.0

Propagation delay

time

(A, B-Y)

tpLH

tpHL

―

5.0 ± 0.5

50

―

5.1

7.9

1.0

9.0

ns

15

―

7.0

11.0

1.0

13.0

3.3 ± 0.3

50

―

9.5

14.5

1.0

16.5

15

―

4.0

6.8

1.0

8.0

Propagation delay

time

(SELECT-Y)

tpLH

tpHL

―

5.0 ± 0.5

50

―

5.5

8.8

1.0

10.0

ns

15

―

6.7

10.5

1.0

12.5

3.3 ± 0.3

50

―

9.2

14.0

1.0

16.0

15

―

3.6

6.8

1.0

8.0

3-state output enable

time

tpZL

tpZH

RL = 1 kΩ

5.0 ± 0.5

50

―

5.1

8.8

1.0

10.0

ns

3.3 ± 0.3

50

―

8.6

12.0

1.0

13.5

3-state output disable

time

tpLZ

tpHZ

RL = 1 kΩ

5.0 ± 0.5

50

―

5.7

7.9

1.0

9.0

ns

Input capacitance

CIN

―

4

10

―

10

pF

Onput capacitance

COUT

―

6

―

pF

Power dissipation

capacitance

CPD

(Note)

―

23

―

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/4 (per bit)

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

0.3

0.8

V

Quiet output minimum dynamic VOL

VOLV

CL = 50 pF

5.0

−0.3

−0.8

V

Minimum high level dynamic input voltage

VIHD

CL = 50 pF

5.0

―

3.5

V

Maximum low level dynamic input voltage

VILD

CL = 50 pF

5.0

―

1.5

V

Input Equivalent Circuit

INPUT

同様の部品番号 - TC74VHC257FK_12

メーカー	部品番号	データシート	部品情報
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