74ALVCH245WM PDF даташит
Спецификация 74ALVCH245WM изготовлена «Fairchild Semiconductor» и имеет функцию, называемую «Low Voltage Bidirectional Transceiver with Bushold». |
|
Детали детали
Номер произв | 74ALVCH245WM |
Описание | Low Voltage Bidirectional Transceiver with Bushold |
Производители | Fairchild Semiconductor |
логотип |
7 Pages
No Preview Available ! |
September 2001
Revised February 2002
74ALVCH245
Low Voltage Bidirectional Transceiver with Bushold
General Description
The ALVCH245 contains eight non-inverting bidirectional
buffers with 3-STATE outputs and is intended for bus ori-
ented applications. The T/R input determines the direction
of data flow. The OE input disables both the A and B Ports
by placing them in a high impedance state. The ALVCH245
data inputs include active bushold circuitry, eliminating the
need for external pull-up resistors to hold unused or float-
ing data inputs at a valid logic level.
The 74ALVCH245 is designed for low voltage (1.65V to
3.6V) VCC applications.
The 74ALVCH245 is fabricated with an advanced CMOS
technology to achieve high-speed operation while main-
taining low CMOS power dissipation.
Features
s 1.65V to 3.6V VCC supply operation
s Bushold on data inputs eliminates the need for external
pull-up/pull-down resistors
s tPD
3.6 ns max for 3.0V to 3.6V VCC
4.2 ns max for 2.3V to 2.7V VCC
6 ns max for 1.65V to 1.95V VCC
s Uses patented Quiet Series noise/EMI reduction
circuitry
s Latchup conforms to JEDEC JED78
s ESD performance:
Human body model > 2000V
Machine model > 200V
Ordering Code:
Order Number Package Number
Package Description
74ALVCH245WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74ALVCH245MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Pin Descriptions
Pin Names
Description
OE
T/R
A0–A7
B0–B7
Output Enable Input (Active LOW)
Transmit/Receive Input
Side A Bushold Inputs or 3-STATE Outputs
Side B Bushold Inputs or 3-STATE Outputs
Quiet Series is a trademark of Fairchild Semiconductor Corporation.
© 2002 Fairchild Semiconductor Corporation DS500648
www.fairchildsemi.com
No Preview Available ! |
Connection Diagram
Logic Diagram
Truth Table
Inputs
Outputs
OE T/R
L L Bus B0–B7 Data to Bus A0–A7
L H Bus A0–A7 Data to Bus B0–B7
H X HIGH Z State on A0–A7, B0–B7
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
www.fairchildsemi.com
2
No Preview Available ! |
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC)
DC Input Voltage (VI)
Output Voltage (VO) (Note 2)
DC Input Diode Current (IIK)
VI < 0V
DC Output Diode Current (IOK)
VO < 0V
DC Output Source/Sink Current
(IOH/IOL)
DC VCC or GND Current per
Supply Pin (ICC or GND)
Storage Temperature Range (TSTG)
−0.5V to +4.6V
−0.5V to 4.6V
−0.5V to VCC +0.5V
−50 mA
−50 mA
±50 mA
±100 mA
−65°C to +150°C
Recommended Operating
Conditions (Note 3)
Power Supply
Operating
1.65V to 3.6V
Input Voltage (VI)
Output Voltage (VO)
Free Air Operating Temperature (TA)
Minimum Input Edge Rate (∆t/∆V)
0V to VCC
0V to VCC
−40°C to +85°C
VIN = 0.8V to 2.0V, VCC = 3.0V
10 ns/V
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
Characteristics tables are not guaranteed at the Absolute Maximum Rat-
ings. The “Recommended Operating Conditions” table will define the condi-
tions for actual device operation.
Note 2: IO Absolute Maximum Rating must be observed, limited to 4.6V.
Note 3: Floating or unused control inputs must be held HIGH or LOW.
DC Electrical Characteristics
Symbol
Parameter
VIH HIGH Level Input Voltage
VIL LOW Level Input Voltage
VOH HIGH Level Output Voltage
VOL LOW Level Output Voltage
II
II(HOLD)
Input Leakage Current
Bushold Input Minimum
Drive Hold Current
IOZ
ICC
∆ICC
3-STATE Output Leakage
Quiescent Supply Current
Increase in ICC per Input
Conditions
IOH = −100 µA
IOH = −4 mA
IOH = −6 mA
IOH = −12 mA
IOH = −24 mA
IOL = 100 µA
IOL = 4 mA
IOL = 6 mA
IOL = 12 mA
IOL = 24 mA
0 ≤ VI ≤ 3.6V
VIN = 0.58V
VIN = 1.07V
VIN = 0.7V
VIN = 1.7V
VIN = 0.8V
VIN = 2.0V
0 < VO ≤ 3.6V
0 ≤ VO ≤ 3.6V
VI = VCC or GND, IO = 0
VIH = VCC − 0.6V
VCC
Min Max
(V)
1.65 - 1.95 0.65 x VCC
2.3 - 2.7
1.7
2.7 - 3.6
2.0
1.65 - 1.95
2.3 - 2.7
0.35 x VCC
0.7
2.7 - 3.6
0.8
1.65 - 3.6 VCC - 0.2
1.65
1.2
2.3 2.0
2.3 1.7
2.7 2.2
3.0 2.4
3.0 2
1.65 - 3.6
0.2
1.65
0.45
2.3 0.4
2.3 0.7
2.7 0.4
3.0
3.6 ±5.0
1.65
25
1.65
−25
2.3 45
2.3 −45
3.0 75
3.0 −75
3.6 ±500
3.6 ±10
3.6 10
3 - 3.6
750
Units
V
V
V
V
µA
µA
µA
µA
µA
3 www.fairchildsemi.com
Скачать PDF:
[ 74ALVCH245WM.PDF Даташит ]
Номер в каталоге | Описание | Производители |
74ALVCH245WM | Low Voltage Bidirectional Transceiver with Bushold | Fairchild Semiconductor |
Номер в каталоге | Описание | Производители |
TL431 | 100 мА, регулируемый прецизионный шунтирующий регулятор |
Unisonic Technologies |
IRF840 | 8 А, 500 В, N-канальный МОП-транзистор |
Vishay |
LM317 | Линейный стабилизатор напряжения, 1,5 А |
STMicroelectronics |
DataSheet26.com | 2020 | Контакты | Поиск |