pi5c3244 Pericom Semiconductor Corporation, pi5c3244 Datasheet

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pi5c3244

Manufacturer Part Number
pi5c3244
Description
8-bit Bus Switch Buffers Fct244 Pinout
Manufacturer
Pericom Semiconductor Corporation
Datasheet

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Part Number:
pi5c3244Q
Manufacturer:
PERICOM
Quantity:
20 000
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Part Number:
pi5c3244QEX
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97
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Part Number:
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Part Number:
pi5c3244S
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PERICOM
Quantity:
20 000
Part Number:
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PERICOM
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20 000
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
Block Diagram
Features:
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs when enabled
• Direct bus connection when switches are ON
• Ultra Low Quiescent Power (0.2μA typical)
• Pin compatible with 74 Series 244 logic devices
• Packaging (Pb-free & Green Available):
Truth Table
Note: 1. H = High Voltage Level
– Ideally suited for notebook applications
– 20-pin 173-mil wide plastic TSSOP (L)
– 20-pin 150-mil wide plastic QSOP (Q)
– 20-pin 300-mil wide plastic SOIC (S)
BE
H
H
L
L
1
06-0239
L = Low Voltage Level
BE
BE
1A
1A
1A
1A
2A
2A
2A
2A
1
0
1
2
3
2
0
1
2
3
(1)
BE
H
H
L
L
2
Disconnect
Disconnect
1A = 1B
1A = 1B
1A, 1B
1B
1B
1B
1B
2B
2B
2B
2B
Disconnect
Disconnect
2A = 2B
2A = 2B
0
1
2
3
0
1
2
3
2A, 2B
1
Pin Description
Pin Configuration
Description:
Pericom Semiconductor’s PI5C3244 features a set of eight bus
switches which is pinout and function compatible with the
PI74FCT244T, 74F244, and 74ALS/AS/LS 244 8-bit drivers. Two
enable signals (BEn) turn the switches on similar to the enable
signals of the 244. The bus switch creates no additional propagation
delay or ground bounce noise.
Pin Name
BEn
A
B
GND
V
0
0
CC
-A
-B
3
3
GND
BE
2
1
2
1
2
1
2
1
B
A
B
A
B
Description
Bus Output Enable (Active LOW)
Bus A
Bus B
Ground
Power
A
B
A
2
2
1
3
0
1
0
3
1
1
2
3
4
5
6
7
8
9
10
8-Bit, 2-Port Switch
20
19
18
17
16
15
14
13
12
11
V
BE
1
2
1
2
1
2
1
2
B
A
B
A
B
A
B
A
CC
PS7014E
0
3
1
2
2
1
3
0
2
PI5C3244
05/12/06

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pi5c3244 Summary of contents

Page 1

... Note High Voltage Level L = Low Voltage Level 06-0239 Description: Pericom Semiconductor’s PI5C3244 features a set of eight bus switches which is pinout and function compatible with the PI74FCT244T, 74F244, and 74ALS/AS/LS 244 8-bit drivers. Two enable signals (BEn) turn the switches on similar to the enable signals of the 244 ...

Page 2

... CC (2) Min. Typ 2.0 –0.5 –0.7 –1.2 100 150 = Typ. Units PI5C3244 Max. Units V 0.8 V ±1 μA ±1 μA ±1 μ ohm 15 PS7014E 05/12/06 ...

Page 3

... Max and B Pins Open GND 1 2 Control Input Toggling 50% Duty Cycle PI5C3244 Com. Conditions Min Max 0. 500-ohm L 1.5 5.6 1.5 5.2 3 8-Bit, 2-Port Switch (2) Min. Typ = GND or V 0.1 CC (3) = 3.4V Unit PS7014E PI5C3244 Max. Units 3.0 μA 2.5 mA 0.25 mA/ MHz 05/12/06 ...

Page 4

... SEATING Max PLANE .002 0.05 .006 0.15 .007 .012 0.19 0.30 4 8-Bit, 2-Port Switch .008 0.20 MIN. .008 .013 0.20 0.33 0˚-6˚ .016 .035 0.41 0.89 .041 1.04 REF .015 x 45˚ 0.38 Detail A 0.178 .007 0.254 .010 .016 0.41 .050 1.27 .228 .244 5.79 6.19 .004 0.20 .008 0.45 .018 0.75 .030 .238 .269 6.1 6.7 PI5C3244 0.09 PS7014E 05/12/06 ...

Page 5

... Max. BSC 0.25 0.65 Ordering Information Ordering Code PI5C3244Q PI5C3244QE PI5C3244L PI5C3244LE PI5C3244S PI5C3244SE Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • Pb-free & Green • Adding an X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 06-0239 5.00 .197 5 ...

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