データシートサーチシステム
Selected language   Japanese  ▼

Delete All
ON OFF
ALLDATASHEET.JP

X  

Preview PDF Download HTML

SN74HCS164 データシート(PDF) 12 Page - Texas Instruments

Click here to check the latest version.
部品番号. SN74HCS164
部品情報  SN74HCS164 8-Bit Parallel-Out Serial Shift Registers With Schmitt-Trigger Inputs
ダウンロード  24 Pages
Scroll/Zoom Zoom In 100% Zoom Out
メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo 

SN74HCS164 Datasheet(HTML) 12 Page - Texas Instruments

Zoom Inzoom in Zoom Outzoom out
 12 / 24 page
background image
9 Application and Implementation
Note
Information in the following applications sections is not part of the TI component specification, and TI
does not warrant its accuracy or completeness. TI’s customers are responsible for determining
suitability of components for their purposes. Customers should validate and test their design
implementation to confirm system functionality.
9.1 Application Information
In this application, the SN74HCS164 is used to control seven-segment displays. Unlike other I/O expanders, the
SN74HCS164 does not need a communication interface for control. It can be easily operated with simple GPIO
pins. Additional control is provided with two serial inputs that feed into an AND gate.
At power-up, the initial state of the shift registers is unknown. To give them a defined state, the shift register
needs to be cleared. An RC can be connected to the CLR pin as shown in Typical Application Block Diagram to
initialize the shift register to all zeros.
9.2 Typical Application
Seven Segment
CLR
QA
QB
QC
QD
QE
QF
QG
QH
g
f
a
b
DP
c
d
e
a
b
c
d
e
f
g
DP
GND
VCC
A
B
CLK
MCU
R1
C1
VCC
Figure 9-1. Typical application block diagram
9.2.1 Design Requirements
9.2.1.1 Power Considerations
Ensure the desired supply voltage is within the range specified in the Recommended Operating Conditions. The
supply voltage sets the device's electrical characteristics as described in the Electrical Characteristics.
The positive voltage supply must be capable of sourcing current equal to the total current to be sourced by all
outputs of the SN74HCS164 plus the maximum static supply current, ICC, listed in Electrical Characteristics and
any transient current required for switching. The logic device can only source as much current as is provided by
the positive supply source. Be sure not to exceed the maximum total current through VCC listed in the Absolute
Maximum Ratings.
The ground must be capable of sinking current equal to the total current to be sunk by all outputs of the
SN74HCS164 plus the maximum supply current, ICC, listed in Electrical Characteristics, and any transient
current required for switching. The logic device can only sink as much current as can be sunk into its ground
connection. Be sure not to exceed the maximum total current through GND listed in the Absolute Maximum
Ratings.
SN74HCS164
SCLS827 – AUGUST 2020
www.ti.com
12
Submit Document Feedback
Copyright © 2020 Texas Instruments Incorporated
Product Folder Links: SN74HCS164


Html ページ

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24 


Datasheet Download




リンク URL



Privacy Policy
ALLDATASHEET.JP
ALLDATASHEETはお客様のビジネスに役立ちますか?  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   ブックマーク
   |   リンク交換   |   メーカーリスト
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn