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PDF PI74LCX16244 Data sheet ( Hoja de datos )
| Número de pieza | PI74LCX16244 | |
| Descripción | Fast CMOS 3.3V 16-Bit Buffer/Line Driver | |
| Fabricantes | Pericom Semiconductor Corporation | |
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PI74LCX16244
Fast CMOS 3.3V 16-Bit Buffer/Line Driver
Features
• Functionally compatible with FCT3, LVT, and 74 series
16244 families of products
• 3-State outputs
• 5V Tolerant inputs and outputs
• 2.0V-3.6V VCC supply operation
• Balanced sink and source output drives (24mA)
• Low ground bounce outputs
• Power Down High Impedance inputs and outputs
• Supports live insertion
• ESD Protection exceeds 2000V, Human Body Model
200V, Machine Model
• Packages available:
– 48-pin 240-mil wide plastic TSSOP (A)
– 48-pin 300-mil wide plastic SSOP (V)
Description
Pericom Semiconductor’s PI74LCX16244 is a 16-bit buffer/line
driver designed for driving memory loads. With its balanced-drive
characteristics, this high-speed, low power device provides lower
ground bounce, transmission line matching of signals, fewer line
reflections and lower EMI and RFI effects. This makes it ideal
for driving on-board buses and transmission lines. this device is
designed with three-state controls to operate in a Quad-Nibble,
Dual-Byte, or a single 16-bit word mode.
The PI74LCX16244 can be driven from either 3.3V or 5.0V
devices allowing this device to be used as a translator in a mixed
3.3V/5.0V system.
Block Diagram
1OE
1A0
1A1
1A2
1A3
2OE
2A0
2A1
2A2
2A3
3OE
1Y0 3A0
1Y1 3A1
1Y2 3A2
1Y3 3A3
4OE
2Y0 4A0
2Y1 4A1
2Y2 4A2
2Y3 4A3
3Y0
3Y1
3Y2
3Y3
4Y0
4Y1
4Y2
4Y3
1
PS2087D
09/16/04
1 page  
PI74LCX16244
3.3V 16-Bit Buffer/Line Driver
Switching Characteristics over Operating Range
Parameters
Description
Test Conditions
VCC = 3.3V±0.3
Min. Max.
tPHL
tPZH
tPHZ
tsk(0)
Propagation Delay, DXX to OXX
Output Enable time
Output Disable time
Output Skew(1)
CL = 50pF
RL = 500Ω
1.5 4.5
1.5 5.5
1.5 5.4
1.0
Note:
1. Skew between any two outputs, of the same package, switching in the same direction.
VCC = 2.7V
Min. Max.
1.5 5.2
1.5 6.3
1.5 5.7
Units
ns
Dynamic Switching Characteristics (TA = +25°C)
Parameters
Description
Test Conditions(1)
Typ.
VOLP
VOLV
Dynamic LOW peak voltage VCC = 3.3C, CL = 50pF,
Dynamic LOW valley voltage VIH = 3.3V, VIL = 0V
0.8
Note:
1. Measured with 15 outputs switching from High-to-Low or Low-to-High. The remaining output is measured in the LOW state.
Units
V
5
PS2087D
09/16/04
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet PI74LCX16244.PDF ] | |
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