Nexperia

74HCS08

Quad 2-input AND gate with Schmitt-trigger inputs

25 °C

-40 °C to +85 °C -40 °C to +125 °C

Symbol Parameter

Conditions

Min Typ[1] Max

Min

Max

Min

Max

Unit

CPD

power

dissipation

capacitance

fi = 1 MHz; CL = 0 pF;

VI = GND to VCC;

VCC = 2.0 V to 6.0 V

[4]

-

10

-

-

-

-

-

pF

[1] Typical values are measured at nominal supply voltage.

[2] tpd is the same as tPHL and tPLH.

[3] tt is the same as tTHL and tTLH.

[4] CPD is used to determine the dynamic power dissipation (PD in μW).

PD = CPD × VCC 2 × fi + Σ(CL × VCC 2 × fo) where:

fi = input frequency in MHz;

fo = output frequency in MHz;

Σ(CL × VCC 2 × fo) = sum of outputs;

CL = output load capacitance in pF;

VCC = supply voltage in V.

10.1. Waveforms and test circuit

GND

VOH

VOL

nY output

aaa-004037

VI

tPHL

tTHL

tTLH

tPLH

VY

VM

VM

VX

nA, nB input

Measurement points are given in Table 8.

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

Fig. 10. Propagation delay input (nA) to output (nY)

Table 8. Measurement points

Input

Output

VM

VM

VX

VY

0.5VCC

0.5VCC

10 %

90 %

74HCS08

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Product data sheet

Rev. 1 — 24 June 2025

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