DataSheet26.com

74FR244SC PDF даташит

Спецификация 74FR244SC изготовлена ​​​​«Fairchild» и имеет функцию, называемую «Octal Buffer/Line Driver with 3-STATE Outputs».

Детали детали

Номер произв 74FR244SC
Описание Octal Buffer/Line Driver with 3-STATE Outputs
Производители Fairchild
логотип Fairchild логотип 

5 Pages
scroll

No Preview Available !

74FR244SC Даташит, Описание, Даташиты
December 1990
Revised August 1999
74FR244
Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The 74FR244 is a non-inverting octal buffer and line driver
designed to be employed as memory and address driver,
clock driver and bus-oriented transmitter/receiver.
Features
s 3-STATE outputs drive bus lines or buffer memory
address registers
s Outputs sink 64 mA and source 15 mA
s Guaranteed pin-to-pin skew
Ordering Code:
Order Number Package Number
Package Description
74FR244SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74FR244SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74FR244PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Descriptions
Pin Names
OE1,–OE2
I0–I7
O0–O7
Description
Output Enable Input (Active-LOW)
Inputs
Outputs
Truth Tables
Inputs
OE1
In
LL
LH
HX
Inputs
OE2
In
LL
LH
HX
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Outputs
(Pins 12, 14, 16, 18)
L
H
Z
Outputs
(Pins 3, 5, 7, 9)
L
H
Z
© 1999 Fairchild Semiconductor Corporation DS010900
www.fairchildsemi.com









No Preview Available !

74FR244SC Даташит, Описание, Даташиты
Absolute Maximum Ratings(Note 1)
Storage Temperature
Ambient Temperature Under Bias
Junction Temperature Under Bias
VCC Pin Potential to Ground Pin
Input Voltage (Note 2)
Input Current (Note 2)
Voltage Applied to Output
in HIGH State (with VCC = 0V)
Standard Output
3-STATE Output
Current Applied to Output
in LOW State (Max)
ESD Last Passing Voltage (Min)
65°C to +150°C
55°C to +125°C
55°C to +150°C
0.5V to +7.0V
0.5V to +7.0V
30 mA to +5.0 mA
0.5V to VCC
0.5V to +5.5V
twice the rated IOL (mA)
4000V
Recommended Operating
Conditions
Free Air Ambient Temperature
Supply Voltage
0°C to +70°C
+4.5V to +5.5V
Note 1: Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Symbol
Parameter
Min
Typ
Max
Units
VCC
Conditions
VIH
VIL
VCD
VOH
VOL
IIH
IBVI
IIL
VID
IOD
IOZH
IOZL
IOS
ICEX
IZZ
ICCH
ICCL
ICCZ
CIN
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH Voltage
Output LOW Voltage
Input HIGH Current
Input HIGH Current Breakdown Test
Input LOW Current
Input Leakage Test
2.0
2.4
2.0
4.75
0.8
1.2
0.55
5
7
150
V
V
V
V
V
V
µA
µA
µA
V
Output Circuit Leakage Current
3.75
µA
Output Leakage Current
Output Leakage Current
Output Short-Circuit Current
Output HIGH Leakage Current
Bus Drainage Test
Power Supply Current
Power Supply Current
Power Supply Current
Input Capacitance
20 µA
20 µA
100
225
mA
50 µA
100 µA
30 50 mA
55 75 mA
35 50 mA
8.0 pF
Recognized HIGH Signal
Recognized LOW Signal
Min IIN = −18 mA
Min IOH = −3 mA
Min IOH = −15 mA
Min IOL = 64 mA
Max VIN = 2.7V
Max VIN = 7.0V
Max VIN = 0.5V
0.0 IID = 1.9 µA,
All Other Pins Grounded
0.0 VIOD = 150 mV,
All Other Pins Grounded
Max
Max
Max
Max
0.0
Max
VOUT = 2.7V
VOUT = 0.5V
VOUT = 0.0V
VOUT = VCC
VOUT = 5.25V
All Outputs HIGH
Max All Outputs LOW
Max Outputs 3-STATED
5.0
www.fairchildsemi.com
2









No Preview Available !

74FR244SC Даташит, Описание, Даташиты
AC Electrical Characteristics
Symbol
Parameter
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay
Output Enable Time
Output Disable Time
Extended AC Characteristics
TA = +25°C
VCC = +5.0V
CL = 50 pF
Min Typ Max
1.0 2.6 3.9
1.0 1.8 3.9
2.5 4.8 6.6
2.5 3.9 6.6
1.6 3.7 6.4
1.6 3.6 6.4
TA = 0°C to +70°C
VCC = +5.0V
CL = 50 pF
Min Max
1.0 3.9
1.0 3.9
2.5 6.6
2.5 6.6
1.6 6.4
1.6 6.4
Units
ns
ns
ns
TA = 0°C to +70°C
TA = 0°C to +70°C
VCC = +5.0V
VCC = +5.0V
Symbol
Parameter
CL = 50 pF
Eight Outputs Switching
CL = 250 pF
(Note 4)
Units
(Note 3)
Min Max Min Max
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tOSHL
Propagation Delay
Output Enable Time
Output Disable Time
Pin-to-Pin Skew
for HL Transitions (Note 5)
1.0 5.0 2.3 7.3
ns
1.0 5.0 2.3 7.3
2.5 7.7
2.5 7.7
ns
1.6 6.5
1.6 6.5
ns
1.6 ns
tOSLH
Pin-to-Pin Skew
for LH Transitions (Note 5)
1.0 ns
tOST Pin-to-Pin Skew
for HL/LH Transitions (Note 5)
3.5 ns
Note 3: This specification is guaranteed but not tested. The limits apply to propagation delays for all paths described switching in phase,
i.e., all LOW-to-HIGH, HIGH-to-LOW, 3-STATE-to-HIGH, etc.
Note 4: These specifications guaranteed but not tested. The limits represent propagation delays with 250 pF load capacitors in place of the 50 pF load
capacitors in the standard AC load. This specification pertains to single output switching only.
Note 5: Skew is defined as the absolute value of the difference between the actual propagation delays for any two outputs of the same device. The specifi-
cation applies to any outputs switching HIGH-to-LOW, (tOSHL), LOW-to-HIGH, (tOSLH), or HIGH-to-LOW and/or LOW-to-HIGH, (tOST). Specification guaran-
teed with all outputs switching in phase.
3 www.fairchildsemi.com










Скачать PDF:

[ 74FR244SC.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
74FR244SCOctal Buffer/Line Driver with 3-STATE OutputsFairchild
Fairchild
74FR244SJOctal Buffer/Line Driver with 3-STATE OutputsFairchild
Fairchild

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