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PDF PI74LCX16245V Data sheet ( Hoja de datos )
| Número de pieza | PI74LCX16245V | |
| Descripción | Fast CMOS 3.3V 16-Bit Bidirectional Transceiver | |
| Fabricantes | Pericom Semiconductor Corporation | |
| Logotipo |  |
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PI74LCX16245
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Fast CMOS 3.3V 16-Bit
Bidirectional Transceiver
Product Features
• Functionally compatible with FCT3, LVT, and
74 series 16245 families of products
• Tri-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)
Logic Block Diagram
Product Description
Pericom Semiconductor’s PI74LCX series of logic circuits are
produced in the Company’s advanced 0.6 micron CMOS technology,
achieving industry leading speed grades.
The PI74LCX16245 is a 16-bit bidirectional transceiver designed for
asynchronous two-way communication between data buses. The
direction control input pin (xDIR) determines the direction of data
flow through the bidirectional transceiver. The Direction and Output
Enable controls are designed to operate this device as either two
independent 8-bit transceivers or one 16-bit transceiver. The output
enable (OE) input, when HIGH, disables both A and B ports by
placing them in HIGH Z condition.
The PI74LCX16245 can be driven from either 3.3V or 5.0V devices
allowing this device to be used as a translator in a mixed
3.3/5.0V system.
1DIR
1A0
1A1
1A2
A31
1A4
1A5
1A6
1A7
1OE
1B0
1B1
1B2
1B3
1B4
1B5
1B6
1B7
2DIR
2A0
2A1
2A2
2A3
2A4
2A5
2A6
2A7
2OE
2B0
2B1
2B2
2B3
2B4
2B5
2B6
2B7
1
PS2088B
09/19/02
1 page  
PI74LCX16245
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Switching Characteristics over Operating Range
VCC = 3.3V ± 0.3V
Parameters
Description
Conditions
Min.
Max.
tPLH Propagation Delay
tPHL
DXX to OXX
1.5 4.5
tPZH
tPZL
tPHZ
tPLZ
tSK(O)
Output Enable time
Output Disable Time
Output Skew(1)
CL = 50pF
RL = 500Ω
1.5
1.5
6.5
6.4
1.0
Notes:
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 7.2
1.5 6.9
Units
ns
Dynamic Switching Characteristics (TA =+25°C)
Parameters
Description
Test Conditions(1)
Typ. Units
VOLP
VOLV
Dynamic LOW Peak Voltage
Dynamic LOW Valley Voltage
VCC = 3.3V, CL = 50pF
VIH = 3.3V, VIL = 0V
0.8 V
Note:
1. Measured with n–1 outputs switching from High-to-Low or Low-to-High. The remaining output is measured in the LOW state.
5
PS2088B
09/19/02
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet PI74LCX16245V.PDF ] | |
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