Nexperia

74LVC574A

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

mna803

GND

GND

th

tsu

th

tsu

VM

VM

VM

VI

VOH

VOL

VI

Qn output

CP input

Dn input

Measurement points are given in Table 8.

VOL and VOH are typical output voltage levels that occur with the output load.

The shaded areas indicate when the input is permitted to change for predictable output performance.

Fig. 8. Data set-up and hold times for the Dn input to the CP input

mna804

tPLZ

tPHZ

outputs

disabled

outputs

enabled

VY

VX

outputs

enabled

Qn output

LOW-to-OFF

OFF-to-LOW

Qn output

HIGH-to-OFF

OFF-to-HIGH

OE input

VOL

VOH

VCC

VI

VM

GND

GND

tPZL

tPZH

VM

VM

Measurement points are given in Table 8.

VOL and VOH are typical output voltage levels that occur with the output load.

Fig. 9. 3-state enable and disable times

Table 8. Measurement points

Supply voltage

Input

Output

VCC

VI

VM

VM

VX

VY

1.2 V

VCC

0.5 × VCC

0.5 × VCC

VOL + 0.15 V

VOH - 0.15 V

1.65 V to 1.95 V

VCC

0.5 × VCC

0.5 × VCC

VOL + 0.15 V

VOH - 0.15 V

2.3 V to 2.7 V

VCC

0.5 × VCC

0.5 × VCC

VOL + 0.15 V

VOH - 0.15 V

2.7 V

2.7 V

1.5 V

1.5 V

VOL + 0.3 V

VOH - 0.3 V

3.0 V to 3.6 V

2.7 V

1.5 V

1.5 V

VOL + 0.3 V

VOH - 0.3 V

74LVC574A

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 6 — 30 August 2021

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