PI74VCX16244 Datasheet, PDF (1/8 Pages) Pericom Semiconductor Corporation – 16-Bit Buffer/Driver with 3-State Outputs

PI74VCX16244
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16-Bit Buffer/Driver
with 3-State Outputs
Features
Description
• The PI74VCX Family is designed for low voltage
operation, CD = 1.8V to 3.6V
• 3.6V Tolerant Inputs and Outputs
• Supports Live Insertion
• Balanced Drive, ±24mA
• Uses patented Noise Reduction Circuitry
• Typical VOLP (Output Ground Bounce) <0.6V
at VDD = 2.5V, TA = 25ºC
• Typical VOHV (Output VOH Undershoot) < -0.6V
at VDD = 2.5V, TA = 25ºC
• Power-Off high impedance inputs and outputs
• Industrial operation at –40°C to +85°C
Pericom Semiconductor’s PI74VCX16244 buffer/driver is designed
specifically to improve both the performance and density of 3-state
memory address drivers, clock drivers, and bus-oriented receivers
and transmitters.
The device can be used as four 4-bit buffers, two 8-bit buffers, or one
16-bit buffer. It provides true outputs and symmetrical active-low
output-enable (OE) inputs.
To ensure the high-impedance state during power up or power down,
OE should be tied to Vcc through a pullup resistor; the minimum
value of the resistor is determined by the current-sinking capability
of the driver.
The PI74VCX family is I/O Tolerant, allowing it to operate in
1.8/3.6V systems.
• Packaging (Pb-free & Green available):
– 48-pin 240-mil wide plastic TSSOP (A)
Block Diagram
1OE ¹
1A1 ⁴⁷
46
1A2
2 _1Y1
3
1Y2
3OE ²⁵
3A1 ³⁶
35
3A2
13 _3Y1
14
3Y2
44
1A3
5
1Y3
33
3A3
16
3Y3
43
1A4
6
1Y4
32
3A4
17
3Y4
2OE ⁴⁸
41
2A1
40
2A2
38
2A3
37
2A4
8 _2Y1
9 _2Y2
11 _2Y3
12 _2Y4
4OE ²⁴
30
4A1
29
4A2
27
4A3
26
4A4
19
4Y1
20
4Y2
22
4Y3
23
4Y4
1
PS8160C 09/27/04