74AHC74-Q100 datasheet(9/19 Pages) NEXPERIA | Dual D-type flip-flop with set and reset positive-edge trigger

Part No.	74AHC74-Q100

Description	Dual D-type flip-flop with set and reset positive-edge trigger

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74AHC_AHCT74_Q100

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Product data sheet

Rev. 2 — 21 April 2015

9 of 19

Nexperia

74AHC74-Q100; 74AHCT74-Q100

Dual D-type flip-flop with set and reset; positive-edge trigger

[1]

Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC =5.0 V).

[2]

tpd is the same as tPLH and tPHL.

[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;

(C

L  VCC

2

 f

o) = sum of the outputs.

CPD

power

dissipation

capacitance

fi = 1 MHz; VI =GND to VCC

[3]

-12-

-

pF

74AHCT74-Q100; VCC =4.5Vto5.5V

tpd

propagation

delay

nCP to nQ, nQ; see Figure 7

[2]

CL = 15 pF

-

3.3

7.8

1.0

9.0

1.0

10.0

ns

CL = 50 pF

-

4.8

8.8

1.0

10.0

1.0

11.0

ns

nSD, nRD to nQ, nQ;

see Figure 7

CL = 15 pF

-

3.7

10.4

1.0

12.0

1.0

13.0

ns

CL = 50 pF

-

5.3

11.4

1.0

13.0

1.0

14.5

ns

fmax

maximum

frequency

see Figure 7

CL = 15 pF

100

160

-

80

-

80

-

MHz

CL =50 pF

80

140

-

65

-

65

-

MHz

tW

pulse width

CP HIGH or LOW;

nSD, nRD LOW;

see Figure 7 and Figure 8

5.0

-

5.0

-

5.0

-

ns

tsu

set-up time

nD to nCP; see Figure 7

5.0

-

5.0

-

5.0

-

ns

th

hold time

nD to nCP; see Figure 7

0-

-

0

-

0

-

ns

trec

recovery

time

nRD to nCP; see Figure 8

3.5

-

3.5

-

3.5

-

ns

CPD

power

dissipation

capacitance

fi = 1 MHz; VI =GND to VCC

[3]

-16-

-

pF

Table 7.

Dynamic characteristics …continued

Voltages are referenced to GND (ground = 0 V); for test circuit, see Figure 9.

Symbol Parameter

Conditions

25

C

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

Min Typ[1] Max

Min

Max

Min

Max

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74AHC74-Q100 Datasheet(PDF) 9 Page - Nexperia B.V. All rights reserved

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