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

零件编号

产品描述 (功能)

比赛名单

74HC590

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

NXP Semiconductors. 

NXP Semiconductors

11. Waveforms

74HC590

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

VI

CPC input

GND

VOH

RCO output

VOL

1/fmax

VM

tW

tPHL

tPLH

VM

001aac550

Fig 9.

Measurement points are given in Table 8.

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

Waveforms showing the propagation delays from the counter clock input (CPC) to ripple carry (RCO)

output and the CPC pulse width

Table 8. Measurement points

Type

Input

VI

74HC590

VCC

VM

0.5VCC

Output

VM

0.5VCC

VI

CPR input

GND

VOH

Qn output

VOL

1/fmax

VM

tW

tPLH

tPHL

VM

001aac549

Measurement points are given in Table 8.

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

Fig 10. Waveforms showing the propagation delays from the register clock input (CPR) to output (Qn) and the

register clock pulse width

74HC590_2

Product data sheet

Rev. 02 — 28 April 2009

© NXP B.V. 2009. All rights reserved.

11 of 21

Share Link: