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74FCT244 の電気的特性と機能

74FCT244のメーカーはIntegrated Device Technologyです、この部品の機能は「FAST CMOS OCTAL BUFFER/LINE DRIVERS」です。


製品の詳細 ( Datasheet PDF )

部品番号 74FCT244
部品説明 FAST CMOS OCTAL BUFFER/LINE DRIVERS
メーカ Integrated Device Technology
ロゴ Integrated Device Technology ロゴ 




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74FCT244 Datasheet, 74FCT244 PDF,ピン配置, 機能
IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT
FAST CMOS OCTAL BUFFER/LINE DRIVER FAST CMOS OCTAL
BUFFER/LINE
MIIDLITTA5R4/Y7A4NFDCTCO24M0MTE/RACTIA/CLTT/EDMTPE- R2A2T4U0RTE/ARTA/NCGTES
IDT54/74FCT244T/AT/CT/DT - 2244T/AT/CT
IDT54/74FCT540T/AT/CT
DRIVERS
IDT54/74FCT541/2541T/AT/CT
Integrated Device Technology, Inc.
FEATURES:
• Common features:
– Low input and output leakage 1µA (max.)
– CMOS power levels
– True TTL input and output compatibility
– VOH = 3.3V (typ.)
– VOL = 0.3V (typ.)
– Meets or exceeds JEDEC standard 18 specifications
– Product available in Radiation Tolerant and Radiation
Enhanced versions
– Military product compliant to MIL-STD-883, Class B
and DESC listed (dual marked)
– Available in DIP, SOIC, SSOP, QSOP, CERPACK
and LCC packages
• Features for FCT240T/FCT244T/FCT540T/FCT541T:
– Std., A, C and D speed grades
– High drive outputs (-15mA IOH, 64mA IOL)
• Features for FCT2240T/FCT2244T/FCT2541T:
– Std., A and C speed grades
– Resistor outputs (-15mA IOH, 12mA IOL Com.)
(-12mA IOH, 12mA IOL Mil.)
– Reduced system switching noise
DESCRIPTION:
The IDT octal buffer/line drivers are built using an advanced
dual metal CMOS technology. The FCT240T/FCT2240T and
FCT244T/FCT2244T are designed to be employed as memory
and address drivers, clock drivers and bus-oriented transmit-
ter/receivers which provide improved board density.
The FCT540T and FCT541T/FCT2541T are similar in
function to the FCT240T/FCT2240T and FCT244T/FCT2244T,
respectively, except that the inputs and outputs are on oppo-
site sides of the package. This pinout arrangement makes
these devices especially useful as output ports for micropro-
cessors and as backplane drivers, allowing ease of layout and
greater board density.
The FCT2240T, FCT2244T and FCT2541T have balanced
output drive with current limiting resistors. This offers low
ground bounce, minimal undershoot and controlled output fall
times-reducing the need for external series terminating resis-
tors. FCT2xxxT parts are plug-in replacements for FCTxxxT
parts.
FUNCTIONAL BLOCK DIAGRAMS
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
OEB
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
FCT240/2240T
FCT244/2244T
OEB
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
2565 drw 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1996 Integrated Device Technology, Inc.
6.8
6.8
2565 drw 02
OEA OEB
D0 O0
D1 O1
D2 O2
D3 O3
D4 O4
D5 O5
D6 O6
D7 O7
FCT540/541/2541T
*Logic diagram shown for 'FCT540.
'FCT541/2541T is the non-inverting option.
2565 drw 03
DECEMBER 1995
DSC-2565/6
11

1 Page





74FCT244 pdf, ピン配列
IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN DESCRIPTION
Pin Names
OEA, OEB
Dxx
Oxx
Description
3–State Output Enable Inputs (Active LOW)
Inputs
Outputs
2565 tbl 01
FUNCTION TABLE
OEA
L
L
H
Inputs(1)
OEB
L
L
H
D
L
H
X
NOTES:
1. H = High Voltage Level
X = Don’t Care
L = Low Voltage Level
Z = High Impedance
Outputs(1)
240 244 540 541
HLH L
L HL H
ZZZZ
2565 tbl 02
ABSOLUTE MAXIMUM RATINGS(1)
CAPACITANCE (TA = +25°C, f = 1.0MHz)
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 +0.5
0 to +70
–55 to +125
–55 to +125
0.5
Military
–0.5 to +7.0
–0.5 to
VCC +0.5
–55 to +125
–65 to +135
–65 to +150
0.5
Unit
V
V
°C
°C
°C
W
Symbol Parameter(1) Conditions Typ. Max. Unit
CIN Input
VIN = 0V 6 10 pF
Capacitance
COUT Output
VOUT = 0V 8
12 pF
Capacitance
NOTE:
2565 lnk 04
1. This parameter is measured at characterization but not tested.
IOUT
DC Output
–60 to +120 –60 to +120 mA
Current
NOTES:
2565 lnk 03
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-
INGS 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.
6.8 3


3Pages


74FCT244 電子部品, 半導体
IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT240/2240T
FCT240T
FCT2240T
FCT240AT
FCT2240AT
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to ON
Output Enable Time
Output Disable Time
Condition(1)
CL = 50pF
RL = 500
Com'l.
Min.(2) Max.
1.5 8.0
Mil.
Min.(2) Max.
1.5 9.0
Com'l.
Min.(2) Max.
1.5 4.8
Mil.
Min.(2) Max.
1.5 5.1
Unit
ns
1.5 10.0 1.5 10.5 1.5 6.2 1.5 6.5 ns
1.5 9.5 1.5 10.0 1.5 5.6 1.5 5.9 ns
2565 tbl 09
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to ON
Output Enable Time
Output Disable Time
Condition(1)
CL = 50pF
RL = 500
FCT240CT
FCT2240CT
Com'l.
Min.(2) Max.
1.5 4.3
Mil.
Min.(2) Max.
1.5 4.7
FCT240DT
Com'l.
Min.(2) Max.
1.5 3.6
Mil.
Min.(2) Max.
——
Unit
ns
1.5 5.8 1.5 6.5 1.5 4.8 — — ns
1.5 5.2 1.5 5.7 1.5 4.0 — — ns
2565 tbl 10
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT244/2244T
FCT244T
FCT2244T
FCT244AT
FCT2244AT
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to ON
Output Enable Time
Output Disable Time
Condition(1)
CL = 50pF
RL = 500
Com'l.
Min.(2) Max.
1.5 6.5
Mil.
Min.(2) Max.
1.5 7.0
Com'l.
Min.(2) Max.
1.5 4.8
Mil.
Min.(2) Max.
1.5 5.1
Unit
ns
1.5 8.0 1.5 8.5 1.5 6.2 1.5 6.5 ns
1.5 7.0 1.5 7.5 1.5 5.6 1.5 5.9 ns
2565 tbl 11
FCT244CT
FCT2244CT
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to ON
Output Enable Time
Output Disable Time
Condition(1)
CL = 50pF
RL = 500
Com'l.
Min.(2) Max.
1.5 4.1
Mil.
Min.(2) Max.
1.5 4.6
1.5 5.8 1.5 6.5
1.5 5.2 1.5 5.7
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
FCT244DT
Com'l.
Min.(2) Max.
1.5 3.6
Mil.
Min.(2) Max.
——
Unit
ns
1.5 4.8 — — ns
1.5 4.0 — — ns
2565 tbl 12
6.8 6

6 Page



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共有リンク

Link :


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FAST CMOS OCTAL BUFFER/LINE DRIVERS

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