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Pericom Semiconductor Corporation

PI74FCT541T Datasheet Preview

PI74FCT541T Datasheet

(PI74FCTxxxT) Fast CMOS Octal Buffer/Line Drivers

No Preview Available !

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
• 25series resistor on all outputs (FCT2XXX only)
TTL input and output levels
www.DataSheLeto4wU.cgormound 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
OA0
O0
OB0
DB0
OB0
DB0
D1
O1
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




Pericom Semiconductor Corporation

PI74FCT541T Datasheet Preview

PI74FCT541T Datasheet

(PI74FCTxxxT) Fast CMOS Octal Buffer/Line Drivers

No Preview Available !

PI74FCT240T/241T/244T/540T/541T (25 ohm Series)
PI74FCT2240T/2241T/2244T/2541T
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Product Pin Description
Pin Name
OEA, OEB
OEB(1)
Dxx
Oxx
GND
VCC
Description
3-State Output Enable Inputs (Active LOW)
3-State Output Enable Input (Active HIGH)
Inputs
Outputs
Ground
Power
www.DataSheet4U.com
PI74FCT240/2240T Product Pin Configuration
Truth Table
OEA
L
L
H
Inputs(1)
OEB OEB(2)
LH
LH
HL
D
L
H
X
Outputs(1)
240 241 244 540 541
HLLHL
LHHLH
ZZZZZ
Note:
1. H = High Voltage Level, X = Don't Care, L = Low
Voltage Level, Z = High Impedance
2. OEB for 241 only.
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
GND
1 20
2 19
3 20-Pin 18
4 H20 17
5 L20 16
6 P20 15
7 Q20 14
8 R20 13
9 S20 12
10 11
Vcc
OEB
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
PI74FCT241/2241/244/2244T Product Pin Configuration
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
GND
1 20
2 19
3 20-Pin 18
4 H20 17
5 L20 16
6 P20 15
7 Q20 14
8 R20 13
9 S20 12
10 11
Vcc
OEB
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
*OEB for 241T, OEB for 244T
PI74FCT540/541/2541T Product Pin Configuration
OEA
D0
D1
D2
D3
D4
D5
D6
D7
GND
1 20
2 19
3 20-Pin 18
4 H20 17
5 L20 16
6 P20 15
7 Q20 14
8 R20 13
9 S20 12
10 11
Vcc
OEB
O0*
O2*
O2*
O3*
O4*
O5*
O6*
O7*
*Ox for 540T, Ox for 541T
2
PS2011B 12/11/00


Part Number PI74FCT541T
Description (PI74FCTxxxT) Fast CMOS Octal Buffer/Line Drivers
Maker Pericom Semiconductor Corporation
Total Page 6 Pages
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