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PDF PI74FCT162244T Data sheet ( Hoja de datos )
| Número de pieza | PI74FCT162244T | |
| Descripción | Fast CMOS 16-Bit Buffer/Line Drivers | |
| Fabricantes | Pericom Semiconductor | |
| Logotipo |  |
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PI74FCT16244/162244/162H244T
PPI7I744FFCCTT11662224444TT11223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556617788699-00B1122I1122T3344B5566U7788F9900F1122E3344R5566/77L8899I00N1122E334455D6677R8899I0011V2211E2233R4455S6677
PI74FCT162H244T112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677
Product Features:
Common Features:
• PI74FCT16244T, PI74FCT162244T and
PI74FCT162H244T are high-speed, low power devices
with high current drive.
• Vcc = 5V ±10%
• Hysteresis on all inputs
• Packages available:
– 48-pin 240 mil wide plastic TSSOP (A48)
– 48-pin 300 mil wide plastic SSOP (V48)
• Device models available upon request.
PI74FCT16244T Features:
• High output drive: IOH = –32 mA; IOL = 64 mA
• Power off disable outputs permit "live insertion"
• Typical VOLP (Output Ground Bounce) < 1.0V
at VCC = 5V, TA = 25°C
PI74FCT162244T Features:
• Balanced output drivers: ±24 mA
• Reduced system switching noise
• Typical VOLP (Output Ground Bounce) < 0.6V
at VCC = 5V, TA = 25°C
PI74FCT162H244T Features:
• Bus Hold retains last active bus state during 3-state
• Eliminates the need for external pull-up resistors
Logic Block Diagram
Fast CMOS 16-Bit
Buffer/Line Drivers
Product Description:
Pericom Semiconductor’s PI74FCT series of logic circuits are pro-
duced in the Company’s advanced 0.6 micron CMOS technology,
achieving industry leading speed grades.
The PI74FCT16244T, PI74FCT162244T, and PI74FCT162H244T
are non-inverting 16-bit buffer/line drivers designed for applications
driving high capacitance loads and low impedance backplanes.
These high-speed, low power devices offer bus/backplane interface
capability and a flow-through organization for ease of board layout.
These devices are designed with three-state controls to operate in a
Quad-Nibble, Dual-Byte, or a single 16-bit word mode.
The PI74FCT16244T output buffers are designed with a Power-Off
disable allowing "live insertion" of boards when used as backplane
drivers.
The PI74FCT162244T has ±24 mA balanced output drivers. It is
designed with current limiting resistors at its outputs to control the
output edge rate resulting in lower ground bounce and undershoot.
This eliminates the need for external terminating resistors for most
interface applications.
The PI74FCT162H244T has "Bus Hold" which retains the input's
last state whenever the input goes to high-impedance preventing
"floating" inputs and eliminating the need for pull-up/down resistors.
1OE
3OE
1A0 1Y0 3A0 3Y0
1A1 1Y1 3A1 3Y1
1A2 1Y2 3A2 3Y2
1A3 1Y3 3A3 3Y3
2OE
2A0
2A1
2A2
2A3
4OE
2Y0 4A0
2Y1 4A1
2Y2 4A2
2Y3 4A3
161
4Y0
4Y1
4Y2
4Y3
PS2031A 03/11/96
1 page  
PI74FCT16244/162244/162H244T
11223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556617788699-00B1122I1122T3344B5566U7788F9900F1122E3344R5566/77L8899I00N1122E334455D6677R8899I0011V2211E2233R4455S6677
Power Supply Characteristics
Parameters Description
ICC Quiescent Power
Supply Current
∆ICC Supply Current per
Input @ TTL HIGH
ICCD Supply Current per
Input per MHz(4)
IC Total Power Supply
Current(6)
Test Conditions(1)
VCC = Max.
VIN = GND or VCC
Min. Typ(2) Max. Units
0.1 500 µA
VCC = Max.
VIN = 3.4V(3)
0.5 1.5 mA
VCC = Max.,
Outputs Open
XOE = GND
One Bit Toggling
50% Duty Cycle
VCC = Max.,
Outputs Open
fI = 10 MHZ
50% Duty Cycle
XOE = GND
One Bit Toggling
VCC = Max.,
Outputs Open
fI = 2.5 MHZ
50% Duty Cycle
XOE = GND
16 Bits Toggling
VIN = VCC
VIN = GND
VIN = VCC
VIN = GND
VIN = 3.4V
VIN = GND
VIN = VCC
VIN = GND
VIN = 3.4V
VIN = GND
60 100 µA/
MHz
0.6 1.5(5) mA
0.9 2.3(5)
2.4 4.5(5)
6.4 16.5(5)
Notes:
1. For conditions shown as Max. or Min., 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 + ∆ICC DHNT + ICCD (fCP/2 + fINI)
ICC = Quiescent Current
∆ICC = 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.
165
PS2031A 03/11/96
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet PI74FCT162244T.PDF ] | |
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