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Pericom Semiconductor

PI74VCX16244 Datasheet Preview

PI74VCX16244 Datasheet

16-Bit Buffer/Driver

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PI74VCX16244
1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
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
1A2 46
1A3 44
1A4 43
2 1Y1
3 1Y2
5 1Y3
6 1Y4
3OE 25
3A1 36
3A2 35
3A3 33
3A4 32
13 3Y1
14 3Y2
16 3Y3
17 3Y4
2OE 48
2A1 41
40
2A2
38
2A3
37
2A4
8 2Y1
9 2Y2
11 2Y3
12 2Y4
4OE 24
4A1 30
29
4A2
27
4A3
26
4A4
19 4Y1
20
4Y2
22
4Y3
23
4Y4
1 PS8160C 09/27/04




Pericom Semiconductor

PI74VCX16244 Datasheet Preview

PI74VCX16244 Datasheet

16-Bit Buffer/Driver

No Preview Available !

PI74VCX16244
16-Bit Buffer/Driver
11223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122w3344i55th6677388-99S0011ta2211t22e33O4455u66t77p8899u00t11s22
Pin Description
Pin Name
nOE
nAx
nYx
GND
VCC
Description
3-State Output Enable Inputs (Active LOW)
Inputs
3-State Outputs
Ground
Power
Pin Configuration
Truth Table(1)
Inputs
nOE
nAX
LH
LL
HX
Notes:
1. H = High Signal Level
L = Low Signal Level
X = Don’t Care or Irrelevant
Z = High Impedance
1OE
1Y1
1Y2
GND
1Y3
1Y4
VCC
2Y1
2Y2
GND
2Y3
2Y4
3Y1
3Y2
GND
3Y3
3Y4
VCC
4Y1
4Y2
GND
4Y3
4Y4
4OE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48 2OE
47 1A1
46 1A2
45 GND
44 1A3
43 1A4
42 VCC
41 2A1
40 2A2
39 GND
38 2A3
37 2A4
36 3A1
35 3A2
34 GND
33 3A3
32 3A4
31 VCC
30 4A1
29 4A2
28 GND
27 4A3
26 4A4
25 3OE
Outputs
nYx
H
L
Z
2 PS8160C 09/27/04


Part Number PI74VCX16244
Description 16-Bit Buffer/Driver
Maker Pericom Semiconductor
Total Page 8 Pages
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