74HC280N datasheet(6/7 Pages) PHILIPS

Part #	74HC280N

Description	9-bit odd/even parity generator/checker

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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December 1990

6

Philips Semiconductors

Product speciﬁcation

9-bit odd/even parity generator/checker

74HC/HCT280

DC CHARACTERISTICS FOR 74HCT

For the DC characteristics see

“74HC/HCT/HCU/HCMOS Logic Family Specifications”.

Output capability: standard

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 the table below.

AC CHARACTERISTICS FOR 74HCT

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

INPUT

UNIT LOAD COEFFICIENT

In

1.0

SYMBOL

PARAMETER

Tamb (°C)

UNIT

TEST CONDITIONS

74HCT

VCC

(V)

WAVEFORMS

+25

−40 to +85

−40 to +125

min.

typ.

max.

min.

max.

min.

max.

tPHL/ tPLH

propagation delay

In to ∑E

21

42

53

63

ns

4.5

Fig.6

tPHL/ tPLH

propagation delay

In to ∑O

26

45

56

68

ns

4.5

Fig.6

tTHL/ tTLH

output transition time

7

15

19

22

ns

4.5

Fig.6

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74HC280N Datasheet(PDF) 6 Page - NXP Semiconductors

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