Nexperia

74HC368; 74HCT368

Hex buffer/line driver; 3-state; inverting

10.1. Waveforms and test circuit

aaa-024304

tPLH

tPHL

VM

nA input

VI

GND

VOH

VOL

90 %

10 %

VM

VM

VM

tTHL

tTLH

nY output

Measurement points are given in Table 8.

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

Fig. 6. Input (nA) to output (nY) propagation delays and output transition times

aaa-024305

nY output

LOW-to-OFF

OFF-to-LOW

nY output

HIGH-to-OFF

OFF-to-HIGH

nOE input

GND

VM

VM

VM

VY

VX

VI

GND

VCC

VOL

VOH

outputs

disabled

outputs

enabled

outputs

enabled

tPLZ

tPHZ

tPZL

tPZH

Measurement points are given in Table 8.

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

Fig. 7. 3-state enable and disable times

Table 8. Measurement points

Input

Output

Type

VM

VM

VX

VY

74HC368

0.5 × VCC

0.5 × VCC

0.1 × VCC

0.9 × VCC

74HCT368

1.3 V

1.3 V

0.1 × VCC

0.9 × VCC

74HC_HCT368

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 4 — 5 August 2021

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