74HCT27N 데이터 시트보기 (PDF) - NXP Semiconductors.

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74HCT27N

Triple 3-input NOR gate

NXP Semiconductors. 

Nexperia

74HC27; 74HCT27

Triple 3-input NOR gate

10. Dynamic characteristics

Table 7. Dynamic characteristics type 74HC27; 74HCT27

GND = 0 V; for load circuit see Figure 7.

Symbol Parameter

Conditions

Min

74HC27

tpd

propagation delay nA, nB, nC to nY; see Figure 6 [1]

VCC = 2.0 V

-

VCC = 4.5 V

-

VCC = 5.0 V; CL = 15 pF

-

VCC = 6.0 V

tt

transition time

see Figure 6

-

[2]

VCC = 2.0 V

-

VCC = 4.5 V

-

VCC = 6.0 V

-

CPD

power dissipation per package; VI = GND to VCC [3] -

capacitance

74HCT27

tpd

propagation delay nA, nB, nC to nY; see Figure 6 [1]

VCC = 4.5 V

-

VCC = 5.0 V; CL = 15 pF

tt

transition time

VCC = 4.5 V; see Figure 6

CPD

power dissipation per package;

capacitance

VI = GND to VCC  1.5 V

-

[2]

-

[3]

-

[1] tpd is the same as tPHL and tPLH.

[2] tt is the same as tTHL and tTLH.

[3] CPD is used to determine the dynamic power dissipation (PD in W):

PD = CPD  VCC2  fi  N +  (CL  VCC2  fo) where:

fi = input frequency in MHz;

fo = output frequency in MHz;

CL = output load capacitance in pF;

VCC = supply voltage in V;

N = number of inputs switching;

 (CL  VCC2  fo) = sum of outputs.

25 C

Typ

28

10

8

8

19

7

6

24

12

10

7

30

40 C to +125 C Unit

Max Max

Max

(85 C) (125 C)

90

115

135 ns

18

23

27 ns

-

-

- ns

15

20

23 ns

75

95

110 ns

15

19

22 ns

13

16

19 ns

-

-

- pF

21

26

-

-

15

19

-

-

32 ns

- ns

22 ns

- pF

74HC_HCT27

Product data sheet

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

Rev. 5.1 — 27 November 2015

© Nexperia B.V. 2017. All rights reserved

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