IDT74FCT244EB 반도체 회로 부품 판매점
FAST CMOS OCTAL BUFFER/LINE DRIVER
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 Integrated Device Tech |
®
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
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
IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER
PIN CONFIGURATIONS
IDT54/74FCT240
2529 cnv* 04–09
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
GND
1 20
2 19
3 18
4 P20-1 17
5 D20-1 16
6 SO20-2 15
&
7 E20-1 14
8 13
9 12
10 11
VCC
OEB
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
DIP/SOIC/CERPACK
TOP VIEW
IDT54/74FCT241/244
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
GND
1 20
2 19
3 18
4 P20-1 17
5 D20-1 16
6 SO20-2 15
7
&
E20-1
14
8 13
9 12
10 11
VCC
OEB*
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
DIP/SOIC/CERPACK
TOP VIEW
*OEB for 241, OEB for 244
IDT54/74FCT540/541
OEA
D0
D1
D2
D3
D4
D5
D6
D7
GND
1 20
2 19
3 18
4 P20-1 17
5 D20-1 16
6 SO20-2 15
&
7 E20-1 14
8 13
9 12
10 11
VCC
OEB
O0*
O1*
O2*
O3*
O4*
O5*
O6*
O7*
DIP/SOIC/CERPACK
TOP VIEW
*OX for 540, OX for 541
MILITARY AND COMMERCIAL TEMPERATURE RANGES
INDEX
3 2 20 19
DA1 4
1 18 OA0
OB1 5
17 DB0
DA2 6
L20-2
16 OA1
OB2 7
15 DB1
DA3 8
14 OA2
9 10 11 12 13
LCC
TOP VIEW
INDEX
DA1
OB1
DA2
OB2
DA3
3 2 20 19
4 1 18
5 17
6 L20-2 16
7 15
8 14
9 10 11 12 13
OA0
DB0
OA1
DB1
OA2
LCC
TOP VIEW
INDEX
3 2 20 19
D2 4
1 18 O0*
D3 5
17 O1*
D4 6
L20-2
16 O2*
D5 7
15 O3*
D6 8
14 O4*
9 10 11 12 13
LCC
TOP VIEW
2606 cnv* 04–09
7.8 2
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IDT74FCT244EB driver
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관련 데이터시트
IDT74FCT244E
FAST CMOS OCTAL BUFFER/LINE DRIVER - Integrated Device Tech
IDT74FCT244EB
FAST CMOS OCTAL BUFFER/LINE DRIVER - Integrated Device Tech