PI74FCT240T Datasheet, PDF (1/6 Pages) Pericom Semiconductor Corporation – Fast CMOS Octal Buffer/Line Drivers

PI74FCT240T/241T/
244T/540T/541T (25 ohmSeries)
PI74FCT2240T/2241T/2244T/2541T
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Fast CMOS Octal
Buffer/Line Drivers
Product Features
• PI74FCT240/241/244/540/541TandPI74FCT2240/2241/2244/
2541T are pin compatible with bipolar FAST™ Series at a
higher speed and lower power consumption
• 25Ω series resistor on all outputs (FCT2XXX only)
• TTL input and output levels
• Low ground bounce outputs
• Extremely low static power
• Hysteresis on all inputs
• Industrial operating temperature range: –40°C to +85°C
• Packages available:
– 20-pin 173 mil wide plastic TSSOP (L)
– 20-pin 209 mil wide plastic SSOP (H)
– 20-pin 300 mil wide plastic DIP (P)
– 20-pin 150 mil wide plastic QSOP (Q)
– 20-pin 150 mil wide plastic TQSOP (R)
– 20-pin 300 mil wide plastic SOIC (S)
• Device models available upon request
Product Description
Pericom Semiconductor’s PI74FCT series of logic circuits are
produced in the Company’s advanced 0.6/0.8 micron CMOS
technology, achieving industry leading speed grades. All
PI74FCT2XXX devices have a built-in 25 ohm series resistor on
all outputs to reduce noise because of reflections, thus eliminating
the need for an external terminating resistor.
The PI74FCT240T/241T/244T/540T/541T and P174FCT2240T/
2241T/2244/2541T are 8-bit wide driver circuits, designed to be
used in applications requiring high-speed and high-output drive.
Ideal applications would include bus drivers, memory drivers,
address drivers, and system clock drivers.
The PI74FCT540T and PI74FCT541/2541T provide similar driver
capabilities, but have their pins physically grouped by function.
All inputs are located on one side of the package, while outputs are
on the opposite side, allowing for a much simpler and denser board
layout.
Logic Block Diagrams
PI74FCT240/2240T
OEA
OEB
PI74FCT241/2241T
PI74FCT244/2244T
OEA
241 Only
OEB*
PI74FCT540T
PI74FCT541/2541T
OEA
OEB
DA0
OA0
DA0
D0
O0
OA0
OB0
DB0
OB0
D1
O1
DB0
DA1
OA1
DA1
D2
OA1
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
*OEB for 241T, *OEB for 244T,
1
*Logic diagram shown for 540T.
541/2541T is the non-inverting option.
PS2011B 12/11/00