TC74LCX16240FT datasheet(6/9 Pages) TOSHIBA

Teilenummer	TC74LCX16240FT

Bauteilbeschribung	Low-Voltage 16-Bit Bus Buffer (inverted) with 5-V Tolerant Inputs and Outputs

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Hersteller	TOSHIBA [Toshiba Semiconductor]

Direct Link	http://www.semicon.toshiba.co.jp/eng

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6 / 9 page

TC74LCX16240FT

2007-10-19

6

AC Characteristics (Ta = −40 to 85°C)

Characteristics

Symbol

Test Condition

VCC (V)

CL(pF)

Min

Max

Unit

2.5

± 0.2

30

1.5

5.4

2.7

50

1.5

5.3

Propagation delay time

tpLH

tpHL

Figure 1, Figure 2

3.3

± 0.3

50

1.5

4.5

ns

2.5

± 0.2

30

1.5

7.0

2.7

50

1.5

6.0

3-state output enable time

tpZL

tpZH

Figure 1, Figure 3

3.3

± 0.3

50

1.5

5.4

ns

2.5

± 0.2

30

1.5

6.4

2.7

50

1.5

5.4

3-state output disable time

tpLZ

tpHZ

Figure 1, Figure 3

3.3

± 0.3

50

1.5

5.3

ns

2.5

± 0.2

30

⎯

2.7

50

⎯

Output to output skew

tosLH

tosHL

(Note)

3.3

± 0.3

50

⎯

1.0

ns

Note:

Parameter guaranteed by design.

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

Dynamic Switching Characteristics

(Ta

= 25°C, input: tr = tf = 2.5 ns, RL = 500 Ω)

Characteristics

Symbol

Test Condition

VCC (V)

Typ.

Unit

VIH = 2.5 V, VIL = 0 V, CL =30pF

2.5

0.6

Quiet output maximum

dynamic VOL

VOLP

VIH = 3.3 V, VIL = 0 V, CL =50pF

3.3

0.8

V

VIH = 2.5 V, VIL = 0 V, CL =30pF

2.5

0.6

Quiet output minimum

dynamic VOL

|VOLV|

VIH = 3.3 V, VIL = 0 V, CL =50pF

3.3

0.8

V

Capacitive Characteristics (Ta = 25°C)

Characteristics

Symbol

Test Condition

VCC (V)

Typ.

Unit

Input capacitance

CIN

⎯

3.3

7

pF

Output capacitance

COUT

⎯

3.3

8

pF

Power dissipation capacitance

CPD

fIN = 10 MHz

(Note)

3.3

25

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/16 (per bit)

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