数据搜索系统,热门电子元器件搜索
Selected language     Chinese  ▼
部分名称
         详细搜索


74HCT640DB Datasheet(数据表) 3 Page - NXP Semiconductors

部件型号  74HCT640DB
说明  Octal bus transceiver; 3-state; inverting
下载  6 Pages
Scroll/Zoom Zoom In 100% Zoom Out
制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 

   
 3 page
background image
March 1988
3
Philips Semiconductors
Product specification
Octal bus transceiver; 3-state; inverting
74HC/HCT640
PIN DESCRIPTION
PIN NO.
SYMBOL
NAME AND FUNCTION
1
DIR
direction control
2, 3, 4, 5, 6, 7, 8, 9
A0 to A7
data inputs/outputs
10
GND
ground (0 V)
18, 17, 16, 15, 14, 13, 12, 11 B0 to B7
data inputs/outputs
19
OE
output enable input (active LOW)
20
VCC
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
Fig.4 Functional diagram.
FUNCTION TABLE
Note
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
inputs
inputs/outputs
OE
DIR
An
Bn
L
L
H
L
H
X
A=B
inputs
Z
inputs
B=A
Z




HTML 页

1  2  3  4  5  6 


数据表 下载



相关电子零件

部件型号部件说明Html View制造商
74HC643Octal bus transceiver; 3-state; true/inverting 1 2 3 4 5 MoreNXP Semiconductors
74HC242Quad bus transceiver; 3-state; inverting 1 2 3 4 5 MoreNXP Semiconductors
74HC648Octal bus transceiver/register; 3-state; inverting 1 2 3 4 5 MoreNXP Semiconductors
TC74HC540APOCTAL BUS BUFFER INVERTING/NON-INVERTING 3-STATE OUTPUTS 1 2 3 4 5 MoreToshiba Semiconductor
IN74AC640Octal 3-State Inverting Bus Transceiver 1 2 3 4 5 Integral Corp.
IN74LV640Octal 3-State Inverting Bus Transceiver 1 2 3 4 5 Integral Corp.
74ALVC245Octal bus transceiver; 3-state 1 2 3 4 5 MoreNXP Semiconductors
74HC240Octal buffer/line driver; 3-state; inverting 1 2 3 4 5 MoreNXP Semiconductors
74F620Inverting Octal Bus Transceiver with 3-STATE Outputs 1 2 3 4 5 MoreFairchild Semiconductor
74HC7245Octal bus Schmitt-trigger transceiver; 3-state 1 2 3 4 5 MoreNXP Semiconductors

链接网址

ALLDATASHEET是否为您带来帮助?  [ DONATE ]  

关于 Alldatasheet    |   广告服务   |   联系我们   |   隐私政策   |   书签   |   链接交换   |   制造商名单
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , 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