參數(shù)資料
型號： 74ACT640
廠商： ON SEMICONDUCTOR
英文描述： Octal 3−State Inverting Transciever
文件頁數(shù)： 1/6頁
文件大小： 97K
代理商： 74ACT640
Semiconductor Components Industries, LLC, 2006
December, 2006 Rev. 3
1
Publication Order Number:
MC74ACT640/D
MC74ACT640
Octal 3State Inverting
Transciever
The MC74ACT640 octal bus transceiver is designed for
asynchronous two-way communication between data buses. The
device transmits data from bus A to bus B when T/R = HIGH, or from
bus B to bus A when T/R = LOW. The enable input can be used to
disable the device so the buses are effectively isolated.
Features
Bidirectional Data Path
A and B Outputs Sink 24 mA/Source 24 mA
TTL Compatible Inputs
PbFree Packages are Available*
19
20
18
16
15
14
2
1
3
4
5
6
7
V
CC
13
8
12
9
11
10
OE
B
0
B
1
B
2
B
3
B
4
B
5
B
6
B
7
T/R
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
GND
17
Figure 1. Pinout: 20Lead Packages Conductors
(Top View)
PIN ASSIGNMENT
PIN
FUNCTION
A
0
A
7
Side A Inputs or 3-State Outputs
OE
Output Enable Input
T/R
Transmit/Receive Input
B
0
B
7
Side B Inputs or 3-State Outputs
TRUTH TABLE
OE
T/R
Applied
Inputs
Valid
Direction
I/P
→
O/P
Output
H
X
X
X
X
L
H
H
A to B
L
L
H
L
A to B
H
L
L
H
B to A
L
L
L
L
B to A
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
See general marking information in the device marking
section on page 4 of this data sheet.
DEVICE MARKING INFORMATION
http://onsemi.com
SOIC20W
DW SUFFIX
CASE 751D
SOEIAJ20
M SUFFIX
CASE 967
1
1
PDIP20
N SUFFIX
CASE 738
1
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
Device
Package
Shipping
ORDERING INFORMATION
MC74ACT640N
PDIP20
18 Units/Rail
MC74ACT640NG
PDIP20
(PbFree)
18 Units/Rail
MC74ACT640DW
SOIC20
38 Units/Rail
MC74ACT640DWG
SOIC20
(PbFree)
38 Units/Rail
MC74ACT640DWR2
SOIC20
1000 / Tape &
Reel
MC74ACT640DWR2G
SOIC20
(PbFree)
1000 / Tape &
Reel
MC74ACT640MEL
SOEIAJ20 2000 / Tape &
Reel
MC74ACT640MELG
SOEIAJ20
(PbFree)
2000 / Tape &
Reel
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74ACT646_ZBA3026B WAF 制造商:Fairchild Semiconductor Corporation 功能描述:
74ACT646SC 功能描述:總線收發(fā)器 Octal Bus Trans/Reg RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
74ACT646SCX 功能描述:總線收發(fā)器 Octal Bus Trans/Reg RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
74ACT646SPC 功能描述:總線收發(fā)器 RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
74ACT648HAR9112 制造商:HAR 功能描述:74ACT648
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