datasheet: pdf

PI74FCT244T/2244T
PI74FCT541T/2541T
Fast CMOS Non-Inverting Octal Buffer/
Line Drivers
Features
Description
• 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):
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.
PI74FCT244T
– 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 300-mil wide plastic SOIC (S)
PI74FCT2244T
– 20-pin 173-mil wide plastic TSSOP (L)
– 20-pin 150-mil wide plastic QSOP (Q)
– 20-pin 300-mil wide plastic SOIC (S)
PI74FCT541T (Pb-free & Green)
– 20-pin 173-mil wide plastic TSSOP (L)
– 20-pin 150-mil wide plastic QSOP (Q)
– 20-pin 300-mil wide plastic SOIC (S)
PI74FCT2541T
– 20-pin 150-mil wide plastic QSOP (Q)
– 20-pin 300-mil wide plastic SOIC (S)
• Device models available upon request
08-0291
1
PS2011G
11/10/08
PI74FCT244T/2244T
PI74FCT541T/2541T
Fast CMOS Non-Inverting Octal Buffer/Line Drivers
Block Diagrams
PI74FCT244/2244T
PI74FCT541/2541T
OEA
OEA
OEB*
DA0
OA0
OB0
DB0
DA1
OA1
OB1
DB1
DA2
OA2
OB2
DB2
DA3
OA3
OB3
DB3
OEB
D0
O0
D1
O1
D2
O2
D3
O3
D4
O4
D5
O5
D6
O6
D7
O7
*OEB for 244T
Truth Table
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
OEA
L
L
H
08-0291
20
19
18
17
16
15
14
13
12
11
D
L
H
X
244
L
H
Z
541
L
H
Z
PI74FCT541/2541T Pin Configuration
PI74FCT244/2244T Pin Configuration
1
2
3
4
5
6
7
8
9
10
Outputs(1)
Notes:
1. H = High Voltage Level, X = Don't Care, L = Low
Voltage Level, Z = High Impedance
Notes:
1. Only offered for PI74FCT244T
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
GND
Inputs(1)
OEB OEB(2)
L
H
L
H
H
L
OEA
D0
D1
D2
D3
D4
D5
D6
D7
GND
Vcc
OEB
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Vcc
OEB
O0*
O1*
O2*
O3*
O4*
O5*
O6*
O7*
PS2011G
11/10/08
PI74FCT244T/2244T
PI74FCT541T/2541T
Fast CMOS Non-Inverting Octal Buffer/Line Drivers
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ............................................................. –65°C to +150°C
Ambient Temperature with Power Applied .............................-40°C to +85°C
Supply Voltage to Ground Potential (Inputs & Vcc Only) ...... –0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) ... –0.5V to +7.0V
DC Input Voltage ..................................................................... –0.5V to +7.0V
DC Output Current................................................................................ 120mA
Power Dissipation .................................................................................... 0.5W
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other condi tions above those indicated in the operational
sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods
may affect reliability.
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 5.0V ± 5%)
Parameters
Test Conditions(1)
Description
Min.
Typ(2)
2.4
3.0
Max.
VOH
Output HIGH Voltage
VCC = Min., VIN = VIH or VIL
IOH = –15.0mA
VOL
Output LOW Current
VCC = Min., VIN = VIH or VIL
IOL = 64mA
0.3
0.55
VOL
Output LOW Current
VCC = Min., VIN = VIH or VIL
IOL = 12mA
(25ΩSeries)
0.3
0.50
VIH
Input HIGH Voltage
Guaranteed Logic HIGH Level
VIL
Input LOW Voltage
Guaranteed Logic LOW Level
IIH
Input HIGH Current
VCC = Max.
VIN = VCC
1
IIL
Input LOW Current
VCC = Max.
VIN = GND
–1
IOZH
High Impedance
VOUT = 2.7V
1
IOZL
Output Current
VOUT = 0.5V
–1
VIK
Clamp Diode Voltage
VCC = Min., IIN = –18mA
IOFF
Power Down Disable
VCC = GND, VOUT = 4.5V
IOS
Short Circuit Current
Max.(3), VOUT
VH
Input Hysteresis
VCC = MAX.
VCC =
Units
V
2.0
0.8
–0.7
= GND
–60
μA
–1.2
V
100
μA
–120
mA
200
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vcc = 5.0V, +25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(1)
Description
Test Conditions
Typ.
Max.
CIN
Input Capacitance
VIN = 0V
6
10
COUT
Output Capacitance
VOUT = 0V
8
12
Units
pF
Notes:
1. This parameter is determined by device characterization but is not production tested.
08-0291
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PS2011G
11/10/08
PI74FCT244T/2244T
PI74FCT541T/2541T
Fast CMOS Non-Inverting Octal Buffer/Line Drivers
Power Supply Characteristics
Parameters
ICC
ΔICC
ICCD
IC
Test Conditions(1)
Description
Min.
Typ(2)
Max.
Units
Quiescent Power
Supply Current
VCC = Max.
VIN = GND or VCC
0.1
500
μA
Supply Current per
Input @ TTL HIGH
VCC = Max.
VIN = 3.4V(3)
0.5
2.5
mA
Supply Current per
Input per MHz(4)
VCC = Max.,
Outputs Open
OEA = OEB = GND or
OEA = GND, OEB = VCC
One Bit Toggling
50% Duty Cycle
VIN = VCC
VIN = GND
0.15
0.25
mA/
MHz
VIN = VCC
VIN = GND
1.5
3.5(5)
VIN = 3.4V
VIN = GND
1.8
4.5(5)
VIN = VCC
VIN = GND
3.0
6.0(5)
VIN = 3.4V
VIN = GND
5.0
14.0(5)
Total Power Supply
Current(6)
VCC = Max.,
Outputs Open
fI = 10 MHZ
50% Duty Cycle
OEA = OEB = GND or
OEA = GND, OEB = VCC
One Bit Toggling
VCC = Max.,
Outputs Open
fI = 2.5 MHZ
50% Duty Cycle
OEA = OEB = GND or
OEA = GND, OEB = VCC
Eight Bits Toggling
mA
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 5.0V, +25°C ambient.
3. Per TTL driven input (VIN = 3.4V); all other inputs at Vcc or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
6. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ΔICC DHNT + ICCD (fCP/2 + fINI)
ICC = Quiescent Current
ΔICC = Power Supply Current for a TTL High Input (VIN = 3.4V)
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
fI = Input Frequency
NI = Number of Inputs at fI
All currents are in milliamps and all frequencies are in megahertz.
08-0291
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PS2011G
11/10/08
PI74FCT244T/2244T
PI74FCT541T/2541T
Fast CMOS Non-Inverting Octal Buffer/Line Drivers
PI74FCT244/2244T Switching Characteristics over Operating Range
Parameters
244T/2244T
244AT/2244AT
244CT/2244CT
244DT
Com.
Com.
Com.
Com.
Conditions(1)
Description
tPLH
tPHL
Propagation Delay(2)
tPZH
tPZL
Output Enable Time
OEX to ON
tPHZ
tPLZ
Output Disable
Time(3)
OEX to ON
CL = 50pF
Units
Min
Max
Min
Max
Min
Max
Min
Max
1.5
6.5
1.5
4.8
1.5
4.1
1.5
3.6
ns
1.5
8.0
1.5
6.2
1.5
5.8
1.5
4.8
ns
1.5
7.0
1.5
5.6
1.5
5.2
1.5
4.0
ns
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
PI74FCT541/2541T Switching Characteristics over Operating Range
Parameters
Description
Conditions(1)
Delay(2)
tPLH
tPHL
Propagation
DN to ON
tPZH
tPZL
Output Enable Time
OEX to ON
tPHZ
tPLZ
Output Disable
Time(3)
OEX to ON
CL = 50pF
RL = 500Ω
541T/2541T
541AT/
2541AT
541CT/
2541CT
541DT
Com.
Com.
Com.
Com.
Units
Min
Max
Min
Max
Min
Max
Min
Max
1.5
6.0
1.5
4.8
1.5
4.1
1.5
3.8
ns
1.5
9.5
1.5
6.2
1.5
5.8
1.5
5.2
ns
1.5
6.5
1.5
5.6
1.5
5.2
1.5
5.2
ns
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
08-0291
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PS2011G
11/10/08
PI74FCT244T/2244T
PI74FCT541T/2541T
Fast CMOS Non-Inverting Octal Buffer/Line Drivers
Ordering Information: PI74FCT244T
Ordering Code
PI74FCT244TH
PI74FCT244THE
PI74FCT244TL
PI74FCT244TLE
PI74FCT244ATQE
PI74FCT244ATSE
PI74FCT244CTH
PI74FCT244CTHE
PI74FCT244DTQ
PI74FCT244DTSE
PI74FCT244TQE
Package Code
H
H
L
L
Q
S
H
H
Q
S
Q
Speed Grade
Blank
Blank
Blank
Blank
A
A
C
C
D
D
Blank
Package Description
20-pin 209-mil wide plastic SSOP
Pb-free & Green, 20-pin 209-mil wide plastic SSOP
20-pin 173-mil wide plastic TSSOP
Pb-free & Green, 20-pin 173-mil wide plastic TSSOP
Pb-free & Green, 20-pin 150-mil wide plastic QSOP
Pb-free & Green, 20-pin 300-mil wide plastic SOIC
20-pin 209-mil wide plastic SSOP
Pb-free & Green, 20-pin 209-mil wide plastic SSOP
20-pin 150-mil wide plastic QSOP
Pb-free & Green, 20-pin 300-mil wide plastic SOIC
Pb-free & Green, 20-pin 150-mil wide plastic QSOP
PI74FCT244CTQE
Q
C
Pb-free & Green, 20-pin 150-mil wide plastic QSOP
PI74FCT244DTQE
Q
C
Pb-free & Green, 20-pin 150-mil wide plastic QSOP
PI74FCT244CTSE
S
C
Pb-free & Green, 20-pin 300-mil wide plastic SOIC
PI74FCT244TQE
Q
Pb-free & Green, 20-pin 150-mil wide plastic QSOP
PI74FCT244TQSE
Q
Pb-free & Green, 20-pin, Tape/Reel, 150-mil wide plastic
QSOP
Notes:
• Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
• E = Pb-free and Green
• Adding an X suffix = Tape/Reel
08-0291
6
PS2011G
11/10/08
PI74FCT244T/2244T
PI74FCT541T/2541T
Fast CMOS Non-Inverting Octal Buffer/Line Drivers
Ordering Information: PI74FCT2244T
Ordering Code
PI74FCT2244TQE
PI74FCT2244TSE
PI74FCT2244ATLE
PI74FCT2244ATQE
PI74FCT2244ATSE
PI74FCT2244CTQE
Package Code
Q
S
L
Q
S
Q
Speed Grade
Blank
Blank
A
A
A
C
Package Description
Pb-free & Green, 20-pin 150 mil wide plastic QSOP
Pb-free & Green, 20-pin 300 mil wide plastic SOIC
Pb-free & Green, 20-pin 173 mil wide plastic TSSOP
Pb-free & Green, 20-pin 150 mil wide plastic QSOP
Pb-free & Green, 20-pin 300 mil wide plastic SOIC
Pb-free & Green, 20-pin 150 mil wide plastic QSOP
Speed Grade
A
C
Blank
Blank
A
A
A
Blank
Package Description
Pb-free & Green, 20-pin 150-mil wide plastic QSOP
Pb-free & Green, 20-pin 173-mil wide plastic TSSOP
Pb-free & Green, 20-pin 150-mil wide plastic QSOP
20-pin 300-mil wide plastic SOIC
20-pin 150-mil wide plastic QSOP
20-pin 300-mil wide plastic SOIC
Pb-free & Green, 20-pin 300-mil wide plastic SOIC
Pb-free & Green, 20-pin 300-mil wide plastic SOIC
Speed Grade
Blank
Blank
A
A
A
A
Package Description
20-pin 150 mil wide plastic QSOP
Pb-free & Green, 20-pin 300 mil wide plastic SOIC
20-pin 150 mil wide plastic QSOP
20-pin 300 mil wide plastic SOIC
Pb-free & Green, 20-pin 300 mil wide plastic SOIC
Pb-free & Green, 20-pin 150 mil wide plastic QSOP
Ordering Information: PI74FCT541T
Ordering Code
PI74FCT541ATQE
PI74FCT541CTLE
PI74FCT541TQE
PI74FCT541TS
PI74FCT541ATQ
PI74FCT541ATS
PI74FCT541ATSE
PI74FCT541TSE
Package Code
Q
L
Q
S
Q
S
S
T
Ordering Information: PI74FCT2541T
Ordering Code
PI74FCT2541TQ
PI74FCT2541TSE
PI74FCT2541ATQ
PI74FCT2541ATS
PI74FCT2541ATSE
PI74FCT2541ATQE
Package Code
Q
S
Q
S
S
Q
Notes:
• Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
• E = Pb-free and Green
• Adding an X suffix = Tape/Reel
08-0291
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PS2011G
11/10/08
PI74FCT244T/2244T
PI74FCT541T/2541T
Fast CMOS Non-Inverting Octal Buffer/Line Drivers
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
08-0291
8
PS2011G
11/10/08