74HC590 查看數據表（PDF） - NXP Semiconductors.

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74HC590

8-bit binary counter with output register; 3-state

NXP Semiconductors. 

NXP Semiconductors

74HC590

8-bit binary counter with output register; 3-state

VI

CE input

GND

VOH

CPC input

VOL

VM

tsu

th

VM

tsu

th

001aac553

Measurement points are given in Table 8.

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

Fig 13. Waveforms showing the set-up and hold times for the count enable input (CE) to the counter clock input

(CPC)

VI

CPC input

GND

VOH

CPR input

VOL

VM

tsu

VM

th

001aac552

Measurement points are given in Table 8.

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

Fig 14. Waveforms showing the set-up and hold times for the counter clock input (CPC) to the register clock

input (CPR)

74HC590_2

Product data sheet

Rev. 02 — 28 April 2009

© NXP B.V. 2009. All rights reserved.

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