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Pericom Semiconductor Corporation

PI74FCT244DTSE Datasheet Preview

PI74FCT244DTSE Datasheet

Fast CMOS Octal Buffer/Line Drivers

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PI74FCT244T/2244T
PI74FCT541T/2541T
Fast CMOS Octal Buffer/Line Drivers
Features
PI74FCT244/541T and PI74FCT2244/2541T 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
Packaging (Pb-free & Green available):
– 20-pin 173-mil wide plastic TSSOP (L)
– 20-pin 209-mil wide plastic SSOP (H)
– 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
Description
Pericom Semiconductor’s PI74FCT244T/541T and P174FCT2244/
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 PI74FCT541 and 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.
All PI74FCT2XXX devices have a built-in 25Ω series resistor on
all outputs to reduce noise because of reflections, thus eliminating
the need for an external terminating resistor.
Block Diagrams
PI74FCT244/2244T
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
OEB*
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
*OEB for 244T,
PI74FCT541/2541T
OEA
OEB
D0 O0
D1 O1
D2 O2
D3 O3
D4 O4
D5 O5
D6 O6
D7 O7
1
PS2011C
09/22/04




Pericom Semiconductor Corporation

PI74FCT244DTSE Datasheet Preview

PI74FCT244DTSE Datasheet

Fast CMOS Octal Buffer/Line Drivers

No Preview Available !

PI74FCT244T/2244T
PI74FCT541T/2541T
Octal Buffer/Line Drivers
Product Pin Description
Pin Name Description
OEA, OEB 3-State Output Enable Inputs (Active LOW)
OEB(1)
3-State Output Enable Input (Active HIGH)
Dxx Inputs
Oxx Outputs
GND
Ground
VCC Power
Truth Table
Inputs(1)
OEA OEB OEB(2)
D
Outputs(1)
244 541
LL H L
L
L
LL H H
H
H
HH L X
Z
Z
Note:
1. H = High Voltage Level, X = Don't Care, L = Low
Voltage Level, Z = High Impedance
2. OEB for 241 only.
PI74FCT241/2241/244/2244T Pin Configuration PI74FCT540/541/2541T 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
OEA
D0
D1
D2
D3
D4
D5
D6
D7
GND
1 20
2
3
4
20-Pin
H20
19
18
17
5 L20 16
6 P20 15
7 Q20 14
8 R20 13
9 S20 12
10 11
Vcc
OEB
O0*
O1*
O2*
O3*
O4*
O5*
O6*
O7*
2
PS2011D
09/22/04


Part Number PI74FCT244DTSE
Description Fast CMOS Octal Buffer/Line Drivers
Maker Pericom Semiconductor Corporation
Total Page 7 Pages
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