TC74VCX257FK datasheet(7/12 Pages) TOSHIBA

Part #	TC74VCX257FK

Description	Low Voltage Quad 2-Channel Multiplexer with 3.6 V Tolerant Inputs and Outputs

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Manufacturer	TOSHIBA [Toshiba Semiconductor]

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

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7 / 12 page

TC74VCX257FT/FK

2007-10-19

7

AC Characteristics (Ta = −40~85°C, Input: tr = tf = 2.0 ns) (Note 1)

Characteristics

Symbol

Test Condition

VCC (V)

Min

Max

Unit

1.2

3.0

40.0

CL = 15 pF, RL = 2 kΩ

1.5

± 0.1

2.0

16.0

1.8

± 0.15

1.5

8.0

2.5

± 0.2

0.8

4.0

Propagation delay time

(A, B-Y)

tpLH

tpHL

Figure 1, Figure 2

CL = 30 pF, RL = 500 Ω

3.3

± 0.3

0.6

3.0

ns

1.2

3.0

48.0

CL = 15 pF, RL = 2 kΩ

1.5

± 0.1

2.0

19.2

1.8

± 0.15

1.5

9.6

2.5

± 0.2

0.8

4.8

Propagation delay time

(SELECT-Y)

tpLH

tpHL

Figure 1, Figure 2

CL = 30 pF, RL = 500 Ω

3.3

± 0.3

0.6

4.0

ns

1.2

3.0

46.0

CL = 15 pF, RL = 2 kΩ

1.5

± 0.1

2.0

18.4

1.8

± 0.15

1.5

9.2

2.5

± 0.2

0.8

4.6

3-state output enable time

tpZL

tpZH

Figure 1, Figure 3

CL = 30 pF, RL = 500 Ω

3.3

± 0.3

0.6

3.5

ns

1.2

3.0

34.0

CL = 15 pF, RL = 2 kΩ

1.5

± 0.1

2.0

13.6

1.8

± 0.15

1.5

6.8

2.5

± 0.2

0.8

3.8

3-state output disable time

tpLZ

tpHZ

Figure 1, Figure 3

CL = 30 pF, RL = 500 Ω

3.3

± 0.3

0.6

3.5

ns

1.2

⎯

1.5

CL = 15 pF, RL = 2 kΩ

1.5

± 0.1

⎯

1.5

1.8

± 0.15

⎯

0.5

2.5

± 0.2

⎯

0.5

Output to output skew

tosLH

tosHL

(Note 2)

CL = 30 pF, RL = 500 Ω

3.3

± 0.3

⎯

0.5

ns

Note 1: For CL = 50 pF, add approximately 300 ps to the AC maximum specification.

Note 2: This parameter is guaranteed by design.

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

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