IDT74FCT240 Datasheet, PDF (1/8 Pages) Integrated Device Technology – FAST CMOS OCTAL BUFFER/LINE DRIVER

®
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 FAST^TM
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
OEA
241 Only
OEA
OEB
OEB
OEB*
DA0
OA0
DA0
OA0
D0
O0*
OB0
DB0
OB0
DB0
D1
O1*
DA1
OA1
DA1
OA1
D2
O2*
OB1
DB1
OB1
DB1
D3
O3*
DA2
OA2
DA2
OA2
D4
O4*
OB2
DB2
OB2
DB2
D5
O5*
DA3
OA3
DA3
OA3
D6
O6*
OB3
DB3
OB3
DB3
D7
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