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74FCT244ASO の電気的特性と機能

74FCT244ASOのメーカーはIntegrated Device Technologyです、この部品の機能は「 IDT74FCT244ASO」です。


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部品番号 74FCT244ASO
部品説明 IDT74FCT244ASO
メーカ Integrated Device Technology
ロゴ Integrated Device Technology ロゴ 




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74FCT244ASO Datasheet, 74FCT244ASO PDF,ピン配置, 機能
®
Integrated Device Technology, Inc.
FAST CMOS OCTAL
BUFFER/LINE DRIVER
IDT54/74FCT240/A/C
IDT54/74FCT241/A/C
IDT54/74FCT244/A/C
IDT54/74FCT540/A/C
IDT54/74FCT541/A/C
FEATURES:
• IDT54/74FCT240/241/244/540/541 equivalent to FASTTM
speed and drive
• IDT54/74FCT240A/241A/244A/540A/541A 25% faster
than FAST
• IDT54/74FCT240C/241C/244C/540C/541C up to 55%
faster than FAST
• IOL = 64mA (commercial) and 48mA (military)
• CMOS power levels (1mW typ. static)
• Product available in Radiation Tolerant and Radiation
Enhanced versions
• Military product compliant to MIL-STD-883, Class B
• Meets or exceeds JEDEC Standard 18 specifications
DESCRIPTION:
The IDT octal buffer/line drivers are built using an advanced
dual metal CMOS technology. The IDT54/74FCT240/A/C,
IDT54/74FCT241/A/C and IDT54/74FCT244/A/C are designed
to be employed as memory and address drivers, clock drivers
and bus-oriented transmitter/receivers which provide improved
board density.
The IDT54/74FCT540/A/C and IDT54/74FCT541/A/C are
similar in function to the IDT54/74FCT240/A/C and IDT54/
74FCT244/A/C, respectively, except that the inputs and out-
puts are on opposite sides of the package. This pinout
arrangement makes these devices especially useful as output
ports for microprocessors and as backplane drivers, allowing
ease of layout and greater board density.
FUNCTIONAL BLOCK DIAGRAMS
2529 cnv* 01–03
OEA
OEB
DA0
OA0
OB0
DB0
DA1
OB1
OA1
DB1
DA2
OB2
OA2
DB2
DA3
OA3
OB3
DB3
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
241 Only
OEB*
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
OEA
D0
D1
D2
D3
D4
D5
D6
D7
OEB
O0*
O1*
O2*
O3*
O4*
O5*
O6*
O7*
IDT54/74FCT240
IDT54/74FCT241/244
*OEB for 241, OEB for 244
IDT54/74FCT540/541
*Logic diagram shown for 'FCT540.
'FCT541 is the non-inverting option.
2606 dwg 01–03
www.DataSheet4U.com
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FAST is a trademark of National Semiconductor Co.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1992 Integrated Device Technology, Inc.
7.8
MAY 1992
DSC-4610/3
1

1 Page





74FCT244ASO pdf, ピン配列
IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN DESCRIPTION
FUNCTION TABLE
Pin Names
OE A, OE B
OEB(1)
Description
3–State Output Enable Inputs (Active LOW)
3–State Output Enable Input (Active HIGH)
Dxx Inputs
Oxx Outputs
NOTE:
1. OEB for 241 only.
2606 tbl 04
OE A
Inputs(1)
OE B OEB(2)
LLH
LLH
HHL
NOTES:
1. H = High Voltage Level
X = Don’t Care
L = Low Voltage Level
Z = High Impedance
2. OEB for 241 only.
D
L
H
X
Outputs(1)
240 241 244 540 541
HL LH L
LHH LH
ZZZZZ
2606 tbl 05
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
VTERM(2) Terminal Voltage
with Respect to
GND
VTERM(3) Terminal Voltage
with Respect to
GND
TA Operating
Temperature
TBIAS
Temperature
Under Bias
TSTG
Storage
Temperature
PT Power Dissipation
Commercial
–0.5 to +7.0
–0.5 to VCC
0 to +70
–55 to +125
–55 to +125
0.5
Military
–0.5 to +7.0
–0.5 to VCC
–55 to +125
–65 to +135
–65 to +150
0.5
Unit
V
V
°C
°C
°C
W
IOUT
DC Output
120 120 mA
Current
NOTES:
2606 tbl 01
1. Stresses greater than those listed under ABSOLUTE MAXIMUM
RATINGS may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any other
conditions above those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability. No terminal voltage
may exceed VCC by +0.5V unless otherwise noted.
2. Input and VCC terminals only.
3. Outputs and I/O terminals only.
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol Parameter (1) Conditions Typ. Max. Unit
CIN Input
Capacitance
VIN = 0V
6 10 pF
COUT
Output
Capacitance
VOUT = 0V
8 12 pF
NOTE:
2606 tbl 02
1. This parameter is measured at characterization but not tested.
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7.8
3


3Pages


74FCT244ASO 電子部品, 半導体
IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT240(1,2)
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to O N
Output Enable Time
Output Disable Time
Condition
CL = 50pF
RL = 500
54/74FCT240
54/74FCT240A
54/74FCT240C
Com'l. Mil. Com'l. Mil. Com'l. Mil.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit
1.5 8.0 1.5 9.0 1.5 4.8 1.5 5.1 1.5 4.3 1.5 4.7 ns
1.5 10.0 1.5 10.5 1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.5 ns
1.5 9.5 1.5 10.0 1.5 5.6 1.5 5.9 1.5 5.2 1.5 5.7 ns
2606 tbl 07
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT241 AND FCT244(1,2)
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT241 AND FCT244(1,2)
54/74FCT241/244
54/74FCT241A/244A 54/74FCT241C/244C
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to ON
Output Enable Time
Output Disable Time
Condition
CL = 50pF
RL = 500
Com'l. Mil. Com'l. Mil. Com'l. Mil.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit
1.5 6.5 1.5 7.0 1.5 4.8 1.5 5.1 1.5 4.1 1.5 4.6 ns
1.5 8.0 1.5 8.5 1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.5 ns
1.5 7.0 1.5 7.5 1.5 5.6 1.5 5.9 1.5 5.2 1.5 5.7 ns
2606 tbl 08
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT540 AND FCT541(1,2)
54/74FCT540/541
54/74FCT540A/541A 54/74FCT540C/541C
Com'l. Mil. Com'l. Mil. Com'l. Mil.
Symbol
Parameter
Condition
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit
Propagation Delay
tPLH
tPHL
DN to O N
IDT54/74FCT540
CL = 50pF
RL = 500
1.5 8.5 1.5 9.5 1.5 4.8 1.5 5.1 1.5 4.3 1.5 4.7 ns
tPLH
tPHL
Propagation Delay
DN to ON
IDT54/74FCT541
1.5 8.0 1.5 9.0 1.5 4.8 1.5 5.1 1.5 4.1 1.5 4.6 ns
tPZH
tPZL
Output Enable Time
1.5 10.0 1.5 10.5 1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.5 ns
tPHZ
tPLZ
Output Disable Time
1.5 9.5 1.5 10.0 1.5 5.6 1.5 5.9 1.5 5.2 1.5 5.7 ns
NOTES:
2606 tbl 09
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
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部品番号部品説明メーカ
74FCT244ASO

IDT74FCT244ASO

Integrated Device Technology
Integrated Device Technology


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