OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

PI74FCT244ATQ

P1-P3P4-P6
1
PS2011B 12/11/00
Logic Block Diagrams
PI74FCT240/2240T
PI74FCT241/2241T
PI74FCT244/2244T
PI74FCT540T
PI74FCT541/2541T
*Logic diagram shown for 540T.
541/2541T is the non-inverting option.
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.
Product Features
• PI74FCT240/241/244/540/541T and PI74FCT2240/2241/2244/
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
OE
A
DA
0
OB
0
OB
1
DA
1
OB
2
DA
2
OB
3
DA
3
OA
0
DB
0
OE
B
OA
1
DB
1
OA
2
DB
2
OA
3
DB
3
OE
A
DA
0
OB
0
OB
1
DA
1
OB
2
DA
2
OB
3
DA
3
OA
0
DB
0
OE
B
*
OA
1
DB
1
OA
2
DB
2
OA
3
DB
3
241 Only
*
OE
B
for 241T,
*
OE
B
for 244T,
OE
A
D
0
O
0
OE
B
D
1
O
1
D
2
O
2
D
3
O
3
D
4
O
4
D
5
O
5
D
6
O
6
D
7
O
7
Fast CMOS Octal
Buffer/Line Drivers
PI74FCT240T/241T/
244T/540T/541T (25 ohmSeries)
PI74FCT2240T/2241T/2244T/2541T
2
PS2011B 12/11/00
PI74FCT240T/241T/244T/540T/541T (25 ohm Series)
PI74FCT2240T/2241T/2244T/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
Inputs
(1)
Outputs
(1)
OEA OEB OEB
(2)
D 240 241 244 540 541
LL HLHLLHL
LL HHLHHLH
H H L X ZZZZZ
Truth Table
PI74FCT540/541/2541T Product Pin Configuration
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 Product Pin Configuration
PI74FCT240/2240T Product Pin Configuration
*OEB for 241T, OEB for 244T
*Ox for 540T, Ox for 541T
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
A
DA
0
OB
0
DA
1
OB
1
DA
2
OB
2
DA
3
OB
3
GND
Vcc
OE
B
OA
0
DB
0
OA
1
DB
1
OA
2
DB
2
OA
3
DB
3
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
A
DA
0
OB
0
DA
1
OB
1
DA
2
OB
2
DA
3
OB
3
GND
Vcc
OE
B
OA
0
DB
0
OA
1
DB
1
OA
2
DB
2
OA
3
DB
3
20-Pin
H20
L20
P20
Q20
R20
S20
20-Pin
H20
L20
P20
Q20
R20
S20
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
A
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
GND
Vcc
OE
B
O
0
*
O
2
*
O
2
*
O
3
*
O
4
*
O5*
O
6
*
O
7
*
20-Pin
H20
L20
P20
Q20
R20
S20
3
PS2011B 12/11/00
PI74FCT240T/241T/244T/540T/541T (25 ohm Series)
PI74FCT2240T/2241T/2244T/2541T
Octal Buffer/Line Drivers
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
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 Description Test Conditions
(1)
Min. Typ
(2)
Max. Units
VOH Output HIGH Voltage VCC = Min., VIN = VIH or VIL IOH = –15.0mA 2.4 3.0 V
VOL Output LOW Current VCC = Min., VIN = VIH or VIL IOL = 64mA 0.3 0.55 V
VOL Output LOW Current VCC = Min., VIN = VIH or VIL IOL = 12mA (25ΩSeries) 0.3 0.50 V
VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 V
VIL Input LOW Voltage Guaranteed Logic LOW Level 0.8 V
IIH Input HIGH Current VCC = Max. VIN = VCC 1µA
IIL Input LOW Current VCC = Max. VIN = GND –1 µA
IOZH High Impedance VCC = MAX.VOUT = 2.7V 1 µA
IOZL Output Current VOUT = 0.5V –1 µA
VIK Clamp Diode Voltage VCC = Min., IIN = –18mA –0.7 –1.2 V
IOFF Power Down Disable VCC = GND, VOUT = 4.5V — — 100 µA
IOS Short Circuit Current VCC = Max.
(3)
, VOUT = GND –60 –120 mA
VH Input Hysteresis 200 mV
Capacitance (TA = 25°C, f = 1 MHz)
Parameters
(4)
Description Test Conditions Typ Max. Units
CIN Input Capacitance VIN = 0V 6 10 pF
COUT Output Capacitance VOUT = 0V 8 12 pF
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.
4. This parameter is determined by device characterization but is not production 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
P1-P3P4-P6

PI74FCT244ATQ

Mfr. #:
Buy PI74FCT244ATQ
Manufacturer:
Description:
IC BUF NON-INVERT 5.25V 20QSOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet