74HC595(2017) 查看數據表（PDF） - NXP Semiconductors.

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74HC595
(Rev.:2017)

8-bit serial-in, serial or parallel-out shift register with output latches; 3-state

NXP Semiconductors. 

Nexperia

74HC595; 74HCT595

8-bit serial-in, serial or parallel-out shift register with output latches; 3-state

VI

MR input

GND

VI

VM

tW

t rec

SHCP input

VM

GND

VOH

t PHL

Q7S output

VM

VOL

Measurement points are given in Table 8.

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

Figure 11. Master reset to output propagation delays

tr

tf

OE input

10 %

90 %

VM

tPLZ

tPZL

mna561

Qn output

LOW-to-OFF

OFF-to-LOW

Qn output

HIGH-to-OFF

OFF-to-HIGH

tPHZ

10 %

90 %

VM

tPZH

VM

outputs

enabled

outputs

disabled

Measurement points are given in Table 8.

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

Figure 12. Enable and disable times

outputs

enabled

msa697

Table 8. Measurement points

Type

74HC595

74HCT595

Input

VM

0.5VCC

1.3 V

Output

VM

0.5VCC

1.3 V

74HC_HCT595

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 9 — 28 February 2017

© Nexperia B.V. 2017. All rights reserved.

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