DataSheet26.com

74ALS5245-1 PDF даташит

Спецификация 74ALS5245-1 изготовлена ​​​​«Fairchild Semiconductor» и имеет функцию, называемую «Octal 3-STATE Transceiver».

Детали детали

Номер произв 74ALS5245-1
Описание Octal 3-STATE Transceiver
Производители Fairchild Semiconductor
логотип Fairchild Semiconductor логотип 

8 Pages
scroll

No Preview Available !

74ALS5245-1 Даташит, Описание, Даташиты
March 1998
DM74ALS5245/74ALS5245-1
Octal 3-STATE Transceiver
General Description
This octal bus transceiver is designed for asynchronous
two-way communication between data buses. The inputs in-
clude hysteresis which provides improved noise rejection.
Data is transmitted either from the A bus to the B bus or from
the B bus to the A bus depending on the logic level of the di-
rection control (DIR) input. The device can be disabled via
the enable input (G ) which causes the outputs to enter the
high impedance mode so the buses are effectively isolated.
The ALS5245-1 features the same performance as the
ALS5245 with the addition of increased current drive capa-
bility to meet the requirements of various bus architectures.
The recommended maximum IOL is increased to 48 mA.
Features
n Input Hysteresis
n Low output noise generation
n High input noise immunity
n Advanced oxide-isolated, ion implanted Schottky TTL
process
n Switching specification guaranteed over the full
temperature and VCC range
n PNP inputs to reduce input loading
n Maximum IOL is increased to 48 mA for ALS5245-1
Ordering Code:
Order Number Package Number
DM74ALS5245WM
M20B
DM74ALS5245SJ
M20D
DM74ALS5245N
N20A
DM74ALS5245-1WM
M20B
DM74ALS5245-1SJ
M20D
DM74ALS5245-1N
N20A
Package Description
20-Lead Small Outline Package – JEDEC (M)
20-Lead Small Outline Package – EIAJ (SJ)
20-Lead Molded Dual-in-Line Package (N)
20-Lead Small Outline Package – JEDEC (M)
20-Lead Small Outline Package – EIAJ (SJ)
20-Lead Molded Dual-in-Line Package (N)
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagram
DS009175-1
© 1998 Fairchild Semiconductor Corporation DS009175
www.fairchildsemi.com









No Preview Available !

74ALS5245-1 Даташит, Описание, Даташиты
Function Table
Control
Inputs
Operation
G DIR
L L B Data to A Bus
L H A Data to B Bus
H X High Impedance
L = Low Logic Level, H = High Logic Level
X = Don’t Care (Either Low or High Logic Level)
www.fairchildsemi.com
2









No Preview Available !

74ALS5245-1 Даташит, Описание, Даташиты
Absolute Maximum Ratings (Note 1)
Supply Voltage
Input Voltage
Control Inputs
I/O Ports
7V
7V
5.5V
Operating Free-Air Temperature Range
DM74ALS
Storage Temperature Range
Typical θJA
N Package
M Package
0˚C to +70˚C
−65˚C to +150˚C
56.0˚C/W
74.0˚C/W
Recommended Operating Conditions
Symbol
Parameter
DM74ALS5245
74ALS5245-1
Units
Min Max Min Max
VCC Supply Voltage
4.5 5.5 4.5 5.5 V
VIH High Level Input Voltage
2
2V
VIL Low Level Input Voltage
0.8 0.8 V
IOH High Level Output Current
−15 −15 mA
IOL Low Level Output Current
24 48 mA
TA Free Air Operating Temperature Range
0 70 0 70 ˚C
Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these
limits. The parametric values defined in the Electrical Characteristic tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Con-
ditions” table will define the conditions for actual device operation.
ALS5245
Electrical Characteristics
over recommended free air temperature range. All typical values are measured at VCC = 5V, TA = 25˚C.
Symbol
Parameter
Test Conditions
DM74ALS5245
Min Typ Max
VIK Input Clamp Voltage
HYS Hysteresis (VT+ − VT−)
VOH High Level Output
Voltage
VOL Low Level Output
Voltage
II Input Current at
Maximum Input Voltage
IIH High Level Input Current
IIL Low Level Input Current
IO Output Drive Current
ICC Supply Current
VCC = Min, II = −18 mA
VCC = Min
VCC = 4.5V to 5.5V
VCC = Min
VCC = Min
VCC = Max
VCC = Max, VI = 2.7V
VCC = Max, VI = 0.4V
VCC = Max, VO = 2.25V
VCC = Max
IOH = −0.4 mA
IOH = −3 mA
IOH = Max
IOL = 12 mA
IOL = 24 mA
I/O Ports, VI = 5.5V
Control Inputs, VI = 7V
Outputs High
Outputs Low
0.2
VCC − 2
2.4
2
−30
−1.5
0.32
3.2
0.25
0.35
30
36
0.4
0.5
100
100
20
−100
−112
45
55
Outputs Disabled
38 58
VOLP
VOLV
VIHD
Quiet Output Maximum
Dynamic VOL
Quiet Output Minimum
Dynamic VOL
Minimum High Level
Dynamic Input Voltage
VCC = 5.0V, TA = 25˚C
(Figures 1, 2 ; (Notes 2, 3))
VCC = 5.0V, TA = 25˚C
(Figures 1, 2 ; (Notes 2, 3))
VCC = 5.0V, TA = 25˚C
(Notes 2, 4)
0.5
−0.2
1.6
VILD Maximum Low Level
Dynamic Input Voltage
VCC = 5.0V, TA = 25˚C
(Notes 2, 4)
1.0
Units
V
V
V
V
µA
µA
µA
mA
mA
V
V
V
V
Note 2: Plastic DIP package.
Note 3: n = number of device outputs; n−1 outputs switching, each driven 0V to 3V one output @ GND.
Note 4: n = number of device outputs; n outputs switching, n−1 inputs switching 0V to 3V. Input under test switching 3V to threshold (VILD); 0V to threshold (VIHD);
f = 1 MHz.
3 www.fairchildsemi.com










Скачать PDF:

[ 74ALS5245-1.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
74ALS5245-1Octal 3-STATE TransceiverFairchild Semiconductor
Fairchild Semiconductor

Номер в каталоге Описание Производители
TL431

100 мА, регулируемый прецизионный шунтирующий регулятор

Unisonic Technologies
Unisonic Technologies
IRF840

8 А, 500 В, N-канальный МОП-транзистор

Vishay
Vishay
LM317

Линейный стабилизатор напряжения, 1,5 А

STMicroelectronics
STMicroelectronics

DataSheet26.com    |    2020    |

  Контакты    |    Поиск