74HC_HCT253_3

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Product data sheet

Rev. 03 — 22 April 2010

7 of 17

NXP Semiconductors

74HC253; 74HCT253

Dual 4-input multiplexer; 3-state

11. Dynamic characteristics

ΔI

CC

additional

supply current

per input pin; 1In, 2In

inputs

-

40

144

-

180

-

196

μA

per input pin; nOE input

-

110

396

-

495

-

539

μA

per input pin; Sn input

-

110

396

-

495

-

539

μA

input

capacitance

-3.5

-

pF

Table 6.

At recommended operating conditions; voltages are referenced to GND (ground = 0 V).

Symbol Parameter

Conditions

25

°C

−40 °C to +85 °C −40 °C to +125 °C Unit

Min

Typ

Max

Min

Max

Min

Max

Table 7.

Dynamic characteristics

Voltages are referenced to GND (ground = 0 V); For test circuit see Figure 8.

Symbol Parameter

Conditions

25

°C

−40 °C to

+85

°C

−40 °C to

+125

°C

Unit

Typ

Max

Max

Max

74HC253

propagation delay

1ln to 1Y or 2ln to 2Y;

see Figure 6

[1]

55

175

220

265

ns

20

35

44

53

ns

17

-

-

-

ns

16

30

37

45

ns

Sn to nY; see Figure 6

58

175

220

265

ns

21

35

44

53

ns

18

-

-

-

ns

17

30

37

45

ns

enable time

nOE to nY; see Figure 7

[2]

30

100

125

150

ns

11

20

25

30

ns

9

17

21

26

ns

disable time

nOE to nY; see Figure 7

[3]

41

150

190

225

ns

15

30

38

45

ns

12

26

33

38

ns