Nexperia

74LV393

Dual 4-bit binary ripple counter

-40 °C to +85 °C

-40 °C to +125 °C

Symbol Parameter

Conditions

Min

Typ[1]

Max

Min

Max

Unit

CPD

power

dissipation

capacitance

VI = GND to VCC

[3] [4]

-

23

-

-

-

pF

[1] All typical values are measured at Tamb = 25 °C.

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

[3] Typical values are measured at VCC = 3.3 V.

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

PD = CPD x VCC 2 x fi x N + Σ(CL x VCC 2 x 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;

Σ(CL x VCC 2 x fo) = sum of outputs.

10.1. Waveforms and test circuit

001aad537

VM

VM

tPLH

tTLH

tTHL

tPHL

input nCP

VI

GND

VOH

VOL

1/fmax

output nQx

tTLH = 10 % and tTHL = 90 %,

Measurement points are given in Table 8.

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

Fig. 8. Propagation delays clock (nCP) to output (nQx), output transition times and maximum clock frequency

Table 8. Measurement points

Input

Output

Supply voltage VCC

VM

VM

VX

VY

< 2.7 V

0.5VCC

0.5VCC

VOL + 0.1VCC

VOH - 0.1VCC

2.7 V to 3.6 V

1.5VCC

1.5VCC

VOL + 0.3VCC

VOH - 0.3VCC

74LV393

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 6 — 19 March 2021

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