74LVC257APW/AUJ 查看數據表（PDF） - NXP Semiconductors.

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74LVC257APW/AUJ

Quad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-state

NXP Semiconductors. 

Nexperia

74LVC257A

Quad 2-input multiplexer with 5V tolerant; 3-state

10. Dynamic characteristics

Table 7. Dynamic characteristics

Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 9.

Symbol Parameter

Conditions

40 C to +85 C

Min Typ[1] Max

tpd

propagation delay

nI0, nI1 to nY; see Figure 7

[2]

VCC = 1.2 V

-

16

-

VCC = 1.65 V to 1.95 V

1.5 5.2 10.6

VCC = 2.3 V to 2.7 V

1.0 2.8 5.5

VCC = 2.7 V

1.0 2.8 5.4

VCC = 3.0 V to 3.6 V

S to nY; see Figure 7

1.0 2.4 4.6

[2]

VCC = 1.2 V

-

18

-

VCC = 1.65 V to 1.95 V

1.0 6.0 14.8

VCC = 2.3 V to 2.7 V

1.0 3.2 7.7

VCC = 2.7 V

1.0 3.2 7.5

ten

enable time

VCC = 3.0 V to 3.6 V

OE to nY; see Figure 8

1.0 2.7 6.4

[2]

VCC = 1.2 V

-

15

-

VCC = 1.65 V to 1.95 V

1.5 5.8 12.7

VCC = 2.3 V to 2.7 V

1.5 3.3 7.0

VCC = 2.7 V

1.5 3.4 6.7

tdis

disable time

VCC = 3.0 V to 3.6 V

OE to nY; see Figure 8

1.0 2.7 5.6

[2]

VCC = 1.2 V

-

8

-

VCC = 1.65 V to 1.95 V

2.2 4.0 8.2

VCC = 2.3 V to 2.7 V

0.5 2.2 4.4

VCC = 2.7 V

1.5 3.0 4.7

tsk(o)

output skew time

VCC = 3.0 V to 3.6 V

VCC = 3.0 V to 3.6 V

1.0 2.8 4.3

[3]

-

-

1.0

40 C to +125 C Unit

Min

Max

-

- ns

1.5

12.3 ns

1.0

6.4 ns

1.0

7.0 ns

1.0

6.0 ns

-

- ns

1.0

17.1 ns

1.0

8.9 ns

1.0

9.5 ns

1.0

8.0 ns

-

- ns

1.5

14.7 ns

1.5

8.1 ns

1.5

8.5 ns

1.0

7.0 ns

-

- ns

2.2

9.4 ns

0.5

5.1 ns

1.5

6.0 ns

1.0

5.5 ns

-

1.5 ns

74LVC257A

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 6 — 28 November 2011

© Nexperia B.V. 2017. All rights reserved

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