74LV164(2005) 查看數據表（PDF） - Philips Electronics

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74LV164
(Rev.:2005)

8-bit serial-in/parallel-out shift register

Philips Electronics 

Philips Semiconductors

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

PD = CPD × VCC2 × fi × N + Σ(CL × VCC2 × 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 × VCC2 × fo) = sum of the outputs.

[3] The condition is VI = GND to VCC.

12. Waveforms

74LV164

8-bit serial-in/parallel-out shift register

VI

CP input

GND

VOH

Qn output

VOL

1/ fmax

VM

tW

t PHL

VM

t PLH

001aac426

Fig 6.

Measurement points are given in Table 9.

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

Propagation delay clock (CP) to output (Qn), clock pulse width and maximum clock

frequency

VI

MR input

GND

VI

CP input

GND

VOH

Qn output

VOL

VM

tW

t rem

t PHL

VM

VM

001aac427

Fig 7.

Measurement points are given in Table 9.

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

Pulse width master reset (MR), propagation delay master reset (MR) to output (Qn)

and removal time master reset (MR) to clock (CP)

9397 750 14501

Product data sheet

Rev. 03 — 4 February 2005

© Koninklijke Philips Electronics N.V. 2005. All rights reserved.

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