74AHC_AHCT1G14_15 datasheet(6/16 Pages) PHILIPS

Nome de Peças	74AHC_AHCT1G14

Descrição Electrónicos	Inverting Schmitt trigger

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74AHC_AHCT1G14

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Product data sheet

Rev. 7 — 18 November 2014

6 of 16

NXP Semiconductors

74AHC1G14; 74AHCT1G14

Inverting Schmitt trigger

12. Dynamic characteristics

[1]

tpd is the same as tPLH and tPHL.

[2]

Typical values are measured at VCC = 3.3 V.

[3]

Typical values are measured at VCC = 5.0 V.

[4]

CPD is used to determine the dynamic power dissipation PD (W).

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

fi = input frequency in MHz;

fo = output frequency in MHz;

CL = output load capacitance in pF;

VCC = supply voltage in Volts.

Table 9.

Dynamic characteristics

GND = 0 V; tr = tf  3.0 ns. For waveform see Figure 5. For test circuit see Figure 6.

Symbol Parameter

Conditions

25

C

40 C to +85 C 40 C to +125 C Unit

Min

Typ

Max

Min

Max

Min

Max

For type 74AHC1G14

tpd

propagation

delay

A to Y;

[1]

VCC = 3.0 V to 3.6 V

[2]

CL = 15 pF

-

4.2

12.8

1.0

15.0

1.0

16.5

ns

CL = 50 pF

-

6.0

16.3

1.0

18.5

1.0

20.5

ns

VCC = 4.5 V to 5.5 V

[3]

CL = 15 pF

-

3.2

8.6

1.0

10.0

1.0

11.0

ns

CL = 50 pF

-

4.6

10.6

1.0

12.0

1.0

13.5

ns

CPD

power

dissipation

capacitance

per buffer;

CL =50pF; f = 1 MHz;

VI =GND to VCC

[4]

-12-

-

pF

For type 74AHCT1G14

tpd

propagation

delay

A to Y;

VCC = 4.5 V to 5.5 V

[1] [3]

CL = 15 pF

-

4.1

7.0

1.0

8.0

1.0

9.0

ns

CL = 50 pF

-

5.9

8.5

1.0

10.0

1.0

11.0

ns

CPD

power

dissipation

capacitance

per buffer;

VI =GND to VCC

[4]

-13-

-

pF

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Nº de peça semelhante - 74AHC_AHCT1G14_15

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