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74HC258

Quad 2-input multiplexer; 3-state; inverting

Philips Electronics 

Philips Semiconductors

Quad 2-input multiplexer; 3-state; inverting

Product specification

74HC/HCT258

DC CHARACTERISTICS FOR 74HCT

For the DC characteristics see chapter “HCMOS family characteristics”, section “Family specifications”.

Output capability: bus driver.

ICC category: MSI.

Note to HCT types

The value of additional quiescent supply current (∆ICC) for a unit load of 1 is given in the family specifications.

To determine ∆ICC per input, multiply this value by the unit load coefficient shown in Table 1.

Table 1

INPUT

nI0

nI1

OE

S

UNIT LOAD COEFFICIENT

0.50

0.50

1.50

1.50

AC CHARACTERISTICS FOR 74HCT

GND = 0 V; tr = tf = 6 ns; CL = 50 pF.

Tamb (°C)

TEST CONDITIONS

SYMBOL

PARAMETER

MIN.

25

TYP.

MAX.

−40 to +85 −40 to +125 UNIT

MIN. MAX. MIN. MAX.

VCC

(V)

WAVEFORMS

tPHL/tPLH propagation delay;

−

nI0 to nY; nI1 to nY

propagation delay;

−

S to nY

tPZH/tPZL 3-state output enable −

time; OE to nY

tPHZ/tPLZ 3-state output disable −

time; OE to nY

tTHL/tTLH output transition time −

16 27 −

19 34 −

18 30 −

17 30 −

5

12 −

34 −

43 −

38 −

38 −

15 −

41 ns 4.5 see Fig.6

51 ns 4.5 see Fig.6

45 ns 4.5 see Fig.7

45 ns 4.5 see Fig.7

18 ns 4.5 see Fig.6

1999 Sep 02

6

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