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74LVC374A

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Product data sheet

Rev. 3 — 6 December 2012

8 of 19

Nexperia

74LVC374A

Octal D-type flip-flop; 5 V tolerant inputs/outputs; positive-edge trigger; 3-state

[1]

Typical values are measured at Tamb =25 C and VCC = 1.2 V, 1.8 V, 2.5 V, 2.7 V and 3.3 V respectively.

[2]

tpd is the same as tPLH and tPHL.

ten is the same as tPZL and tPZH.

tdis is the same as tPLZ and tPHZ.

[3]

Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.

[4]

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 Volt

N = number of inputs switching

(C

L  VCC

2

 f

o) = sum of the outputs

tW

pulse width

clock HIGH or LOW; see Figure 7

VCC = 1.65 V to 1.95 V

5.0

-

-

5.0

-

ns

VCC = 2.3 V to 2.7 V

4.0

-

-

4.0

-

ns

VCC = 2.7 V

3.0

-

-

4.5

-

ns

VCC = 3.0 V to 3.6 V

3.0

1.5

-

4.5

-

ns

tsu

set-up time

Dn to CP; see Figure 9

VCC = 1.65 V to 1.95 V

4.0

-

-

4.0

-

ns

VCC = 2.3 V to 2.7 V

3.0

-

-

3.0

-

ns

VCC = 2.7 V

2.0

-

-

2.0

-

ns

VCC = 3.0 V to 3.6 V

2.0

0

-

2.0

-

ns

th

hold time

Dn to CP; see Figure 9

VCC = 1.65 V to 1.95 V

3.0

-

-

3.0

-

ns

VCC = 2.3 V to 2.7 V

2.0

-

-

2.0

-

ns

VCC = 2.7 V

1.5

-

-

1.5

-

ns

VCC = 3.0 V to 3.6 V

1.5

0.6

-

1.5

-

ns

fmax

maximum

frequency

see Figure 7

VCC = 1.65 V to 1.95 V

100

-

-

64

-

MHz

VCC = 2.3 V to 2.7 V

125

-

-

100

-

MHz

VCC = 2.7 V

150

-

-

120

-

MHz

VCC = 3.0 V to 3.6 V

150

-

-

120

-

MHz

tsk(o)

output skew

time

VCC =3.0 V to 3.6 V

[3]

-

-

1.0

-

1.5

ns

CPD

power

dissipation

capacitance

per flip-flop; VI = GND to VCC

[4]

VCC = 1.65 V to 1.95 V

-

11.6

-

-

-

pF

VCC = 2.3 V to 2.7 V

-

13.6

-

-

-

pF

VCC = 3.0 V to 3.6 V

-

15.4

-

-

-

pF

Table 7.

Dynamic characteristics …continued

Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 10.

Symbol Parameter

Conditions

40 C to +85 C

40 C to +125 C Unit

Min

Typ[1]

Max

Min

Max